1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.explicit 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.text 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.ident "ia64.S, Version 2.1" 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.ident "IA-64 ISA artwork by Andy Polyakov <appro@fy.chalmers.se>" 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ==================================================================== 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// project. 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Rights for redistribution and usage in source and binary forms are 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// granted according to the OpenSSL license. Warranty of any kind is 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// disclaimed. 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ==================================================================== 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Version 2.x is Itanium2 re-tune. Few words about how Itanum2 is 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// different from Itanium to this module viewpoint. Most notably, is it 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// "wider" than Itanium? Can you experience loop scalability as 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// discussed in commentary sections? Not really:-( Itanium2 has 6 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// integer ALU ports, i.e. it's 2 ports wider, but it's not enough to 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// spin twice as fast, as I need 8 IALU ports. Amount of floating point 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ports is the same, i.e. 2, while I need 4. In other words, to this 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// module Itanium2 remains effectively as "wide" as Itanium. Yet it's 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// essentially different in respect to this module, and a re-tune was 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// required. Well, because some intruction latencies has changed. Most 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// noticeably those intensively used: 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Itanium Itanium2 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ldf8 9 6 L2 hit 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ld8 2 1 L1 hit 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// getf 2 5 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// xma[->getf] 7[+1] 4[+0] 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// add[->st8] 1[+1] 1[+0] 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// What does it mean? You might ratiocinate that the original code 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// should run just faster... Because sum of latencies is smaller... 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Wrong! Note that getf latency increased. This means that if a loop is 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// scheduled for lower latency (as they were), then it will suffer from 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// stall condition and the code will therefore turn anti-scalable, e.g. 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// original bn_mul_words spun at 5*n or 2.5 times slower than expected 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// on Itanium2! What to do? Reschedule loops for Itanium2? But then 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Itanium would exhibit anti-scalability. So I've chosen to reschedule 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// for worst latency for every instruction aiming for best *all-round* 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// performance. 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Q. How much faster does it get? 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// A. Here is the output from 'openssl speed rsa dsa' for vanilla 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 0.9.6a compiled with gcc version 2.96 20000731 (Red Hat 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Linux 7.1 2.96-81): 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 512 bits 0.0036s 0.0003s 275.3 2999.2 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 1024 bits 0.0203s 0.0011s 49.3 894.1 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 2048 bits 0.1331s 0.0040s 7.5 250.9 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 4096 bits 0.9270s 0.0147s 1.1 68.1 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 512 bits 0.0035s 0.0043s 288.3 234.8 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 1024 bits 0.0111s 0.0135s 90.0 74.2 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// And here is similar output but for this assembler 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// implementation:-) 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 512 bits 0.0021s 0.0001s 549.4 9638.5 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 1024 bits 0.0055s 0.0002s 183.8 4481.1 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 2048 bits 0.0244s 0.0006s 41.4 1726.3 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 4096 bits 0.1295s 0.0018s 7.7 561.5 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 512 bits 0.0012s 0.0013s 891.9 756.6 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 1024 bits 0.0023s 0.0028s 440.4 376.2 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Yes, you may argue that it's not fair comparison as it's 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// possible to craft the C implementation with BN_UMULT_HIGH 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// inline assembler macro. But of course! Here is the output 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// with the macro: 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 512 bits 0.0020s 0.0002s 495.0 6561.0 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 1024 bits 0.0086s 0.0004s 116.2 2235.7 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 2048 bits 0.0519s 0.0015s 19.3 667.3 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 4096 bits 0.3464s 0.0053s 2.9 187.7 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 512 bits 0.0016s 0.0020s 613.1 510.5 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 1024 bits 0.0045s 0.0054s 221.0 183.9 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// My code is still way faster, huh:-) And I believe that even 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// higher performance can be achieved. Note that as keys get 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// longer, performance gain is larger. Why? According to the 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// profiler there is another player in the field, namely 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_from_montgomery consuming larger and larger portion of CPU 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// time as keysize decreases. I therefore consider putting effort 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// to assembler implementation of the following routine: 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_mul_add_mont (BN_ULONG *rp,BN_ULONG *np,int nl,BN_ULONG n0) 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// { 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// int i,j; 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG v; 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// for (i=0; i<nl; i++) 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// { 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// v=bn_mul_add_words(rp,np,nl,(rp[0]*n0)&BN_MASK2); 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// nrp++; 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rp++; 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// if (((nrp[-1]+=v)&BN_MASK2) < v) 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// for (j=0; ((++nrp[j])&BN_MASK2) == 0; j++) ; 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// } 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// } 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// It might as well be beneficial to implement even combaX 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// variants, as it appears as it can literally unleash the 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// performance (see comment section to bn_mul_comba8 below). 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// And finally for your reference the output for 0.9.6a compiled 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// with SGIcc version 0.01.0-12 (keep in mind that for the moment 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// of this writing it's not possible to convince SGIcc to use 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_UMULT_HIGH inline assembler macro, yet the code is fast, 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// i.e. for a compiler generated one:-): 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 512 bits 0.0022s 0.0002s 452.7 5894.3 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 1024 bits 0.0097s 0.0005s 102.7 2002.9 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 2048 bits 0.0578s 0.0017s 17.3 600.2 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// rsa 4096 bits 0.3838s 0.0061s 2.6 164.5 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sign verify sign/s verify/s 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 512 bits 0.0018s 0.0022s 547.3 459.6 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// dsa 1024 bits 0.0051s 0.0062s 196.6 161.3 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Oh! Benchmarks were performed on 733MHz Lion-class Itanium 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// system running Redhat Linux 7.1 (very special thanks to Ray 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// McCaffity of Williams Communications for providing an account). 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Q. What's the heck with 'rum 1<<5' at the end of every function? 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// A. Well, by clearing the "upper FP registers written" bit of the 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// User Mask I want to excuse the kernel from preserving upper 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// (f32-f128) FP register bank over process context switch, thus 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// minimizing bus bandwidth consumption during the switch (i.e. 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// after PKI opration completes and the program is off doing 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// something else like bulk symmetric encryption). Having said 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// this, I also want to point out that it might be good idea 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// to compile the whole toolkit (as well as majority of the 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// programs for that matter) with -mfixed-range=f32-f127 command 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// line option. No, it doesn't prevent the compiler from writing 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// to upper bank, but at least discourages to do so. If you don't 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// like the idea you have the option to compile the module with 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// -Drum=nop.m in command line. 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(_HPUX_SOURCE) && !defined(_LP64) 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ADDP addp4 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ADDP add 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// bn_[add|sub]_words routines. 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Loops are spinning in 2*(n+5) ticks on Itanuim (provided that the 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// data reside in L1 cache, i.e. 2 ticks away). It's possible to 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// compress the epilogue and get down to 2*n+6, but at the cost of 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// scalability (the neat feature of this implementation is that it 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// shall automagically spin in n+5 on "wider" IA-64 implementations:-) 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// I consider that the epilogue is short enough as it is to trade tiny 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// performance loss on Itanium for scalability. 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG bn_add_words(BN_ULONG *rp, BN_ULONG *ap, BN_ULONG *bp,int num) 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_add_words# 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_add_words# 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 32 // makes the loop body aligned at 64-byte boundary 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_add_words: 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,4,12,0,16 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp4.le p6,p0=r35,r0 };; 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; mov r8=r0 // return value 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; sub r10=r35,r0,1 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.lc,r3 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=ar.lc 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project brp.loop.imp .L_bn_add_words_ctop,.L_bn_add_words_cend-16 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; ADDP r14=0,r32 // rp 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r9 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r9=pr };; 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; ADDP r15=0,r33 // ap 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=6 } 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; ADDP r16=0,r34 // bp 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=1<<16 };; 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_add_words_ctop: 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p16) ld8 r32=[r16],8 // b=*(bp++) 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p18) add r39=r37,r34 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p19) cmp.ltu.unc p56,p0=r40,r38 } 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p0) nop.m 0x0 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.f 0x0 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.b 0x0 } 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p16) ld8 r35=[r15],8 // a=*(ap++) 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p58) cmp.eq.or p57,p0=-1,r41 // (p20) 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p58) add r41=1,r41 } // (p20) 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p21) st8 [r14]=r42,8 // *(rp++)=r 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.f 0x0 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_add_words_ctop };; 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_add_words_cend: 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p59) add r8=1,r8 // return value 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r9,0x1ffff 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r3 } 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mbb; nop.b 0x0 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_add_words# 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG bn_sub_words(BN_ULONG *rp, BN_ULONG *ap, BN_ULONG *bp,int num) 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_sub_words# 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_sub_words# 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 32 // makes the loop body aligned at 64-byte boundary 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_sub_words: 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,4,12,0,16 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp4.le p6,p0=r35,r0 };; 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; mov r8=r0 // return value 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; sub r10=r35,r0,1 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.lc,r3 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=ar.lc 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project brp.loop.imp .L_bn_sub_words_ctop,.L_bn_sub_words_cend-16 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; ADDP r14=0,r32 // rp 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r9 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r9=pr };; 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; ADDP r15=0,r33 // ap 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=6 } 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; ADDP r16=0,r34 // bp 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=1<<16 };; 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_sub_words_ctop: 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p16) ld8 r32=[r16],8 // b=*(bp++) 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p18) sub r39=r37,r34 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p19) cmp.gtu.unc p56,p0=r40,r38 } 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p0) nop.m 0x0 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.f 0x0 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.b 0x0 } 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p16) ld8 r35=[r15],8 // a=*(ap++) 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p58) cmp.eq.or p57,p0=0,r41 // (p20) 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p58) add r41=-1,r41 } // (p20) 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mbb; (p21) st8 [r14]=r42,8 // *(rp++)=r 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.b 0x0 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_sub_words_ctop };; 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_sub_words_cend: 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p59) add r8=1,r8 // return value 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r9,0x1ffff 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r3 } 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mbb; nop.b 0x0 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_sub_words# 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define XMA_TEMPTATION 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG bn_mul_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w) 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_mul_words# 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_mul_words# 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 32 // makes the loop body aligned at 64-byte boundary 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_mul_words: 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifdef XMA_TEMPTATION 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; alloc r2=ar.pfs,4,0,0,0 };; 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; alloc r2=ar.pfs,4,12,0,16 };; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; mov r8=r0 // return value 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp4.le p6,p0=r34,r0 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; sub r10=r34,r0,1 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.lc,r3 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=ar.lc 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r9 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r9=pr };; 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; setf.sig f8=r35 // w 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=0x800001<<16 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project // ------^----- serves as (p50) at first (p27) 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project brp.loop.imp .L_bn_mul_words_ctop,.L_bn_mul_words_cend-16 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#ifndef XMA_TEMPTATION 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ADDP r14=0,r32 // rp 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ADDP r15=0,r33 // ap 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 } 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; mov r40=0 // serves as r35 at first (p27) 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=13 };; 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// This loop spins in 2*(n+12) ticks. It's scheduled for data in Itanium 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// L2 cache (i.e. 9 ticks away) as floating point load/store instructions 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// bypass L1 cache and L2 latency is actually best-case scenario for 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ldf8. The loop is not scalable and shall run in 2*(n+12) even on 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// "wider" IA-64 implementations. It's a trade-off here. n+24 loop 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// would give us ~5% in *overall* performance improvement on "wider" 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// IA-64, but would hurt Itanium for about same because of longer 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// epilogue. As it's a matter of few percents in either case I've 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// chosen to trade the scalability for development time (you can see 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// this very instruction sequence in bn_mul_add_words loop which in 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// turn is scalable). 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_words_ctop: 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p25) getf.sig r36=f52 // low 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p21) xmpy.lu f48=f37,f8 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p28) cmp.ltu p54,p50=r41,r39 } 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p16) ldf8 f32=[r15],8 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p21) xmpy.hu f40=f37,f8 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.i 0x0 };; 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p25) getf.sig r32=f44 // high 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .pred.rel "mutex",p50,p54 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p50) add r40=r38,r35 // (p27) 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p54) add r40=r38,r35,1 } // (p27) 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p28) st8 [r14]=r41,8 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.f 0x0 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_mul_words_ctop };; 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_words_cend: 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; nop.m 0x0 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.pred.rel "mutex",p51,p55 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p51) add r8=r36,r0 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p55) add r8=r36,r0,1 } 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nop.f 0x0 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nop.b 0x0 } 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else // XMA_TEMPTATION 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project setf.sig f37=r0 // serves as carry at (p18) tick 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=5;; 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Most of you examining this code very likely wonder why in the name 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// of Intel the following loop is commented out? Indeed, it looks so 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// neat that you find it hard to believe that it's something wrong 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// with it, right? The catch is that every iteration depends on the 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// result from previous one and the latter isn't available instantly. 363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// The loop therefore spins at the latency of xma minus 1, or in other 364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// words at 6*(n+4) ticks:-( Compare to the "production" loop above 365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// that runs in 2*(n+11) where the low latency problem is worked around 366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// by moving the dependency to one-tick latent interger ALU. Note that 367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// "distance" between ldf8 and xma is not latency of ldf8, but the 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// *difference* between xma and ldf8 latencies. 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_words_ctop: 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p16) ldf8 f32=[r33],8 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p18) xma.hu f38=f34,f8,f39 } 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p20) stf8 [r32]=f37,8 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p18) xma.lu f35=f34,f8,f39 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_mul_words_ctop };; 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_words_cend: 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project getf.sig r8=f41 // the return value 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif // XMA_TEMPTATION 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; nop.m 0x0 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r9,0x1ffff 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r3 } 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; rum 1<<5 // clear um.mfh 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nop.f 0x0 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_mul_words# 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG bn_mul_add_words(BN_ULONG *rp, BN_ULONG *ap, int num, BN_ULONG w) 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_mul_add_words# 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_mul_add_words# 396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 48 // makes the loop body aligned at 64-byte boundary 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_mul_add_words: 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; alloc r2=ar.pfs,4,4,0,8 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp4.le p6,p0=r34,r0 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.lc,r3 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=ar.lc };; 405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; mov r8=r0 // return value 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sub r10=r34,r0,1 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; setf.sig f8=r35 // w 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r9 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r9=pr 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project brp.loop.imp .L_bn_mul_add_words_ctop,.L_bn_mul_add_words_cend-16 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ADDP r14=0,r32 // rp 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ADDP r15=0,r33 // ap 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 } 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; ADDP r16=0,r32 // rp copy 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=0x2001<<16 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project // ------^----- serves as (p40) at first (p27) 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=11 };; 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// This loop spins in 3*(n+10) ticks on Itanium and in 2*(n+10) on 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Itanium 2. Yes, unlike previous versions it scales:-) Previous 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// version was peforming *all* additions in IALU and was starving 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// for those even on Itanium 2. In this version one addition is 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// moved to FPU and is folded with multiplication. This is at cost 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// of propogating the result from previous call to this subroutine 429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// to L2 cache... In other words negligible even for shorter keys. 430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// *Overall* performance improvement [over previous version] varies 431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// from 11 to 22 percent depending on key length. 432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_add_words_ctop: 433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.pred.rel "mutex",p40,p42 434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p23) getf.sig r36=f45 // low 435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p20) xma.lu f42=f36,f8,f50 // low 436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p40) add r39=r39,r35 } // (p27) 437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p16) ldf8 f32=[r15],8 // *(ap++) 438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p20) xma.hu f36=f36,f8,f50 // high 439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p42) add r39=r39,r35,1 };; // (p27) 440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; (p24) getf.sig r32=f40 // high 441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p16) ldf8 f46=[r16],8 // *(rp1++) 442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p40) cmp.ltu p41,p39=r39,r35 } // (p27) 443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (p26) st8 [r14]=r39,8 // *(rp2++) 444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p42) cmp.leu p41,p39=r39,r35 // (p27) 445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_mul_add_words_ctop};; 446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_mul_add_words_cend: 447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; .pred.rel "mutex",p40,p42 449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p40) add r8=r35,r0 450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p42) add r8=r35,r0,1 451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r9,0x1ffff } 452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; rum 1<<5 // clear um.mfh 453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r3 454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_mul_add_words# 456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_sqr_words(BN_ULONG *rp, BN_ULONG *ap, int num) 461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_sqr_words# 463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_sqr_words# 464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 32 // makes the loop body aligned at 64-byte boundary 466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_sqr_words: 467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,0,0,0 470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sxt4 r34=r34 };; 471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; cmp.le p6,p0=r34,r0 472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r8=r0 } // return value 473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; ADDP r32=0,r32 474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nop.f 0x0 475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; sub r10=r34,r0,1 478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.lc,r3 479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=ar.lc 480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r9 481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r9=pr };; 482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; ADDP r33=0,r33 485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=1<<16 486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project brp.loop.imp .L_bn_sqr_words_ctop,.L_bn_sqr_words_cend-16 487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r34=8,r32 489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r10 490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=18 };; 491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 2*(n+17) on Itanium, (n+17) on "wider" IA-64 implementations. It's 493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// possible to compress the epilogue (I'm getting tired to write this 494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// comment over and over) and get down to 2*n+16 at the cost of 495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// scalability. The decision will very likely be reconsidered after the 496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// benchmark program is profiled. I.e. if perfomance gain on Itanium 497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// will appear larger than loss on "wider" IA-64, then the loop should 498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// be explicitely split and the epilogue compressed. 499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_sqr_words_ctop: 500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p16) ldf8 f32=[r33],8 501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p25) xmpy.lu f42=f41,f41 502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.i 0x0 } 503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (p33) stf8 [r32]=f50,16 504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.i 0x0 505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.b 0x0 } 506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p0) nop.m 0x0 507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p25) xmpy.hu f52=f41,f41 508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.i 0x0 } 509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (p33) stf8 [r34]=f60,16 510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.i 0x0 511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ctop.sptk .L_bn_sqr_words_ctop };; 512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_bn_sqr_words_cend: 513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; nop.m 0x0 515656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r9,0x1ffff 516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.lc=r3 } 517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; rum 1<<5 // clear um.mfh 518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project nop.f 0x0 519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_sqr_words# 521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Apparently we win nothing by implementing special bn_sqr_comba8. 525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Yes, it is possible to reduce the number of multiplications by 526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// almost factor of two, but then the amount of additions would 527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// increase by factor of two (as we would have to perform those 528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// otherwise performed by xma ourselves). Normally we would trade 529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// anyway as multiplications are way more expensive, but not this 530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// time... Multiplication kernel is fully pipelined and as we drain 531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// one 128-bit multiplication result per clock cycle multiplications 532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// are effectively as inexpensive as additions. Special implementation 533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// might become of interest for "wider" IA-64 implementation as you'll 534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// be able to get through the multiplication phase faster (there won't 535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// be any stall issues as discussed in the commentary section below and 536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// you therefore will be able to employ all 4 FP units)... But these 537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Itanium days it's simply too hard to justify the effort so I just 538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// drop down to bn_mul_comba8 code:-) 539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_sqr_comba8(BN_ULONG *r, BN_ULONG *a) 541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_sqr_comba8# 543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_sqr_comba8# 544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_sqr_comba8: 546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(_HPUX_SOURCE) && !defined(_LP64) 549656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,2,1,0,0 550656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r33=0,r33 551656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r32=0,r32 };; 552656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 553656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 554656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,2,1,0,0 555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 556656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r34=r33 557656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r14=8,r33 };; 558656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 559656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r17=8,r34 560656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r15=16,r33 561656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=16,r34 } 562656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; add r16=24,r33 563656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br .L_cheat_entry_point8 };; 564656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_sqr_comba8# 565656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 566656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 567656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 568656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// I've estimated this routine to run in ~120 ticks, but in reality 569656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// (i.e. according to ar.itc) it takes ~160 ticks. Are those extra 570656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// cycles consumed for instructions fetch? Or did I misinterpret some 571656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// clause in Itanium �-architecture manual? Comments are welcomed and 572656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// highly appreciated. 573656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 574656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// On Itanium 2 it takes ~190 ticks. This is because of stalls on 575656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// result from getf.sig. I do nothing about it at this point for 576656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// reasons depicted below. 577656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 578656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// However! It should be noted that even 160 ticks is darn good result 579656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// as it's over 10 (yes, ten, spelled as t-e-n) times faster than the 580656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// C version (compiled with gcc with inline assembler). I really 581656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// kicked compiler's butt here, didn't I? Yeah! This brings us to the 582656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// following statement. It's damn shame that this routine isn't called 583656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// very often nowadays! According to the profiler most CPU time is 584656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// consumed by bn_mul_add_words called from BN_from_montgomery. In 585656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// order to estimate what we're missing, I've compared the performance 586656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// of this routine against "traditional" implementation, i.e. against 587656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// following routine: 588656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 589656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) 590656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// { r[ 8]=bn_mul_words( &(r[0]),a,8,b[0]); 591656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[ 9]=bn_mul_add_words(&(r[1]),a,8,b[1]); 592656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[10]=bn_mul_add_words(&(r[2]),a,8,b[2]); 593656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[11]=bn_mul_add_words(&(r[3]),a,8,b[3]); 594656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[12]=bn_mul_add_words(&(r[4]),a,8,b[4]); 595656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[13]=bn_mul_add_words(&(r[5]),a,8,b[5]); 596656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[14]=bn_mul_add_words(&(r[6]),a,8,b[6]); 597656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// r[15]=bn_mul_add_words(&(r[7]),a,8,b[7]); 598656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// } 599656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 600656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// The one below is over 8 times faster than the one above:-( Even 601656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// more reasons to "combafy" bn_mul_add_mont... 602656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 603656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// And yes, this routine really made me wish there were an optimizing 604656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// assembler! It also feels like it deserves a dedication. 605656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 606656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// To my wife for being there and to my kids... 607656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 608656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_mul_comba8(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) 609656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 610656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define carry1 r14 611656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define carry2 r15 612656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define carry3 r34 613656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_mul_comba8# 614656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_mul_comba8# 615656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 616656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_mul_comba8: 617656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 618656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 619656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(_HPUX_SOURCE) && !defined(_LP64) 620656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,0,0,0 621656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r33=0,r33 622656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r34=0,r34 };; 623656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; addp4 r32=0,r32 624656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 625656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,0,0,0 626656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 627656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r14=8,r33 628656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=8,r34 } 629656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 630656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r15=16,r33 631656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=16,r34 632656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r16=24,r33 } 633656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_cheat_entry_point8: 634656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; add r19=24,r34 635656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 636656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f32=[r33],32 };; 637656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 638656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f120=[r34],32 639656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f121=[r17],32 } 640656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f122=[r18],32 641656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f123=[r19],32 };; 642656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f124=[r34] 643656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f125=[r17] } 644656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f126=[r18] 645656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f127=[r19] } 646656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 647656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f33=[r14],32 648656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f34=[r15],32 } 649656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f35=[r16],32;; 650656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f36=[r33] } 651656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f37=[r14] 652656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f38=[r15] } 653656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; ldf8 f39=[r16] 654656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// -------\ Entering multiplier's heaven /------- 655656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ------------\ /------------ 656656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// -----------------\ /----------------- 657656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ----------------------\/---------------------- 658656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f41=f32,f120,f0 } 659656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f40=f32,f120,f0 };; // (*) 660656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f51=f32,f121,f0 } 661656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f50=f32,f121,f0 };; 662656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f61=f32,f122,f0 } 663656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f60=f32,f122,f0 };; 664656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f71=f32,f123,f0 } 665656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f70=f32,f123,f0 };; 666656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f81=f32,f124,f0 } 667656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f80=f32,f124,f0 };; 668656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f91=f32,f125,f0 } 669656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f90=f32,f125,f0 };; 670656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f101=f32,f126,f0 } 671656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f100=f32,f126,f0 };; 672656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f111=f32,f127,f0 } 673656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f110=f32,f127,f0 };;// 674656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// (*) You can argue that splitting at every second bundle would 675656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// prevent "wider" IA-64 implementations from achieving the peak 676656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// performance. Well, not really... The catch is that if you 677656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// intend to keep 4 FP units busy by splitting at every fourth 678656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// bundle and thus perform these 16 multiplications in 4 ticks, 679656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// the first bundle *below* would stall because the result from 680656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// the first xma bundle *above* won't be available for another 3 681656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// ticks (if not more, being an optimist, I assume that "wider" 682656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// implementation will have same latency:-). This stall will hold 683656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// you back and the performance would be as if every second bundle 684656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// were split *anyway*... 685656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f40 686656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f42=f33,f120,f41 687656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r33=8,r32 } 688656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f41=f33,f120,f41 };; 689656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f50 690656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f52=f33,f121,f51 } 691656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f51=f33,f121,f51 };; 692656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r32]=r16,16 693656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f62=f33,f122,f61 } 694656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f61=f33,f122,f61 };; 695656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f72=f33,f123,f71 } 696656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f71=f33,f123,f71 };; 697656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f82=f33,f124,f81 } 698656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f81=f33,f124,f81 };; 699656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f92=f33,f125,f91 } 700656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f91=f33,f125,f91 };; 701656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f102=f33,f126,f101 } 702656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f101=f33,f126,f101 };; 703656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f112=f33,f127,f111 } 704656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f111=f33,f127,f111 };;// 705656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 706656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f41 707656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f43=f34,f120,f42 } 708656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f42=f34,f120,f42 };; 709656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f60 710656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f53=f34,f121,f52 } 711656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f52=f34,f121,f52 };; 712656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r17=f51 713656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f63=f34,f122,f62 714656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 } 715656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f62=f34,f122,f62 716656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry1=0 };; 717656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r25,r24 718656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f73=f34,f123,f72 } 719656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f72=f34,f123,f72 };; 720656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r33]=r25,16 721656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f83=f34,f124,f82 722656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 723656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f82=f34,f124,f82 };; 724656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f93=f34,f125,f92 } 725656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f92=f34,f125,f92 };; 726656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f103=f34,f126,f102 } 727656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f102=f34,f126,f102 };; 728656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f113=f34,f127,f112 } 729656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f112=f34,f127,f112 };;// 730656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 731656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r18=f42 732656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f44=f35,f120,f43 733656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 } 734656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f43=f35,f120,f43 };; 735656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f70 736656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f54=f35,f121,f53 } 737656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry2=0 738656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f53=f35,f121,f53 };; 739656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f61 740656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f64=f35,f122,f63 741656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 } 742656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; add r18=r18,r17 743656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f63=f35,f122,f63 };; 744656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r26=f52 745656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f74=f35,f123,f73 746656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 747656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r18,r17 748656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f73=f35,f123,f73 749656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,carry1 };; 750656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; 751656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f84=f35,f124,f83 752656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 753656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r18,carry1 754656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f83=f35,f124,f83 };; 755656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r32]=r18,16 756656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f94=f35,f125,f93 757656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 758656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f93=f35,f125,f93 };; 759656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f104=f35,f126,f103 } 760656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f103=f35,f126,f103 };; 761656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f114=f35,f127,f113 } 762656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry1=0 763656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f113=f35,f127,f113 764656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 };;// 765656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 766656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r27=f43 767656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f45=f36,f120,f44 768656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 } 769656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f44=f36,f120,f44 770656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 771656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f80 772656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f55=f36,f121,f54 773656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 774656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f54=f36,f121,f54 };; 775656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r17=f71 776656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f65=f36,f122,f64 777656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 } 778656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f64=f36,f122,f64 779656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 780656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r18=f62 781656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f75=f36,f123,f74 782656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 783656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r27,r26 784656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f74=f36,f123,f74 785656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,carry2 };; 786656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r19=f53 787656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f85=f36,f124,f84 788656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 789656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f84=f36,f124,f84 790656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,carry2 };; 791656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r33]=r27,16 792656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f95=f36,f125,f94 793656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 794656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f94=f36,f125,f94 };; 795656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f105=f36,f126,f104 } 796656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry2=0 797656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f104=f36,f126,f104 798656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 };; 799656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f115=f36,f127,f114 800656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 } 801656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f114=f36,f127,f114 802656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 };;// 803656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 804656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r20=f44 805656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f46=f37,f120,f45 806656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 807656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r18,r17 808656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f45=f37,f120,f45 809656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 };; 810656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f90 811656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f56=f37,f121,f55 } 812656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f55=f37,f121,f55 };; 813656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f81 814656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f66=f37,f122,f65 815656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 816656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r19,r18 817656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f65=f37,f122,f65 818656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r20=r20,r19 };; 819656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r26=f72 820656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f76=f37,f123,f75 821656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 822656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r20,r19 823656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f75=f37,f123,f75 824656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r20=r20,carry1 };; 825656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r27=f63 826656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f86=f37,f124,f85 827656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 828656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f85=f37,f124,f85 829656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r20,carry1 };; 830656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r28=f54 831656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f96=f37,f125,f95 832656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 833656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r32]=r20,16 834656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f95=f37,f125,f95 };; 835656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f106=f37,f126,f105 } 836656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry1=0 837656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f105=f37,f126,f105 838656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 };; 839656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f116=f37,f127,f115 840656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 } 841656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f115=f37,f127,f115 842656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };;// 843656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 844656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r29=f45 845656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f47=f38,f120,f46 846656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 847656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r26,r25 848656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f46=f38,f120,f46 849656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 850656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f100 851656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f57=f38,f121,f56 852656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 853656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r27,r26 854656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f56=f38,f121,f56 855656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r28=r28,r27 };; 856656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r17=f91 857656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f67=f38,f122,f66 858656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 859656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r28,r27 860656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f66=f38,f122,f66 861656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r29=r29,r28 };; 862656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r18=f82 863656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f77=f38,f123,f76 864656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 865656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p6,p0=r29,r28 866656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f76=f38,f123,f76 867656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r29=r29,carry2 };; 868656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r19=f73 869656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f87=f38,f124,f86 870656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 871656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f86=f38,f124,f86 872656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r29,carry2 };; 873656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r20=f64 874656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f97=f38,f125,f96 875656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 876656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r33]=r29,16 877656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f96=f38,f125,f96 };; 878656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r21=f55 879656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f107=f38,f126,f106 } 880656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry2=0 881656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f106=f38,f126,f106 882656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 };; 883656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f117=f38,f127,f116 884656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 } 885656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f116=f38,f127,f116 886656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 };;// 887656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 888656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r22=f46 889656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f48=f39,f120,f47 890656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 891656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r18,r17 892656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f47=f39,f120,f47 893656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 };; 894656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f110 895656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f58=f39,f121,f57 896656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 897656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r19,r18 898656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f57=f39,f121,f57 899656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r20=r20,r19 };; 900656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f101 901656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f68=f39,f122,f67 902656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 903656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r20,r19 904656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f67=f39,f122,f67 905656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r21=r21,r20 };; 906656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r26=f92 907656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f78=f39,f123,f77 908656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 909656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r21,r20 910656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f77=f39,f123,f77 911656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r22=r22,r21 };; 912656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r27=f83 913656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f88=f39,f124,f87 914656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 915656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; cmp.ltu p7,p0=r22,r21 916656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f87=f39,f124,f87 917656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r22=r22,carry1 };; 918656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r28=f74 919656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f98=f39,f125,f97 920656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 921656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f97=f39,f125,f97 922656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r22,carry1 };; 923656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r29=f65 924656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f108=f39,f126,f107 925656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 } 926656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r32]=r22,16 927656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f107=f39,f126,f107 };; 928656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r30=f56 929656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f118=f39,f127,f117 } 930656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f117=f39,f127,f117 };;// 931656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 932656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Leaving muliplier's heaven... Quite a ride, huh? 933656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 934656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r31=f47 935656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 936656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry1=0 };; 937656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r16=f111 938656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 939656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 940656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r17=f102 } 941656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 942656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 943656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 944656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 945656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 } 946656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 947656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 948656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,r26 949656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r28=r28,r27 };; 950656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r18=f93 951656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 952656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry3=0 } 953656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 954656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 955656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r28,r27 956656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r29=r29,r28 };; 957656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r19=f84 958656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 } 959656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 960656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 961656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r29,r28 962656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r30=r30,r29 };; 963656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r20=f75 964656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 } 965656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 966656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 967656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r30,r29 968656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r31=r31,r30 };; 969656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r21=f66 } 970656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 971656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,r17 972656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 } 973656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 } 974656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 975656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 976656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r31,r30 977656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r31=r31,carry2 };; 978656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r22=f57 } 979656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 980656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,r18 981656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r20=r20,r19 } 982656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 } 983656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 984656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 985656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r31,carry2 };; 986656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r23=f48 } 987656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 988656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r20,r19 989656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r21=r21,r20 } 990656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 991656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 992656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; st8 [r33]=r31,16 };; 993656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 994656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r24=f112 } 995656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 996656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r21,r20 997656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r22=r22,r21 };; 998656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r25=f103 } 999656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1000656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r22,r21 1001656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r23=r23,r22 };; 1002656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r26=f94 } 1003656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1004656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r23,r22 1005656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r23=r23,carry1 };; 1006656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r27=f85 } 1007656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1008656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p8=r23,carry1};; 1009656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r28=f76 1010656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 1011656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry1=0 } 1012656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r23,16 1013656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry3 1014656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p8) add carry2=0,carry3 };; 1015656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1016656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 } 1017656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r29=f67 1018656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 1019656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 1020656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r30=f58 } 1021656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1022656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1023656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 1024656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 1025656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r16=f113 } 1026656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1027656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1028656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,r26 1029656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r28=r28,r27 };; 1030656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r17=f104 } 1031656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1032656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1033656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r28,r27 1034656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r29=r29,r28 };; 1035656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r18=f95 } 1036656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1037656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1038656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r29,r28 1039656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r30=r30,r29 };; 1040656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r19=f86 1041656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 1042656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry3=0 } 1043656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1044656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1045656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r30,r29 1046656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r30=r30,carry2 };; 1047656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r20=f77 1048656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 1049656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 } 1050656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1051656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1052656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r30,carry2 };; 1053656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r21=f68 } 1054656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r33]=r30,16 1055656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 };; 1056656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1057656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r24=f114 } 1058656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1059656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,r17 1060656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 };; 1061656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r25=f105 } 1062656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1063656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,r18 1064656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r20=r20,r19 };; 1065656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r26=f96 } 1066656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1067656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r20,r19 1068656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r21=r21,r20 };; 1069656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r27=f87 } 1070656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry3=1,carry3 1071656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r21,r20 1072656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r21=r21,carry1 };; 1073656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; getf.sig r28=f78 1074656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 } 1075656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (p7) add carry3=1,carry3 1076656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p8=r21,carry1};; 1077656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r21,16 1078656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry3 1079656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p8) add carry2=0,carry3 } 1080656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1081656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov carry1=0 1082656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 1083656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 1084656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r16=f115 } 1085656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1086656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1087656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 1088656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 1089656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r17=f106 } 1090656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1091656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1092656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,r26 1093656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r28=r28,r27 };; 1094656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r18=f97 } 1095656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1096656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1097656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r28,r27 1098656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r28=r28,carry2 };; 1099656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; getf.sig r19=f88 1100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 } 1101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; 1102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r28,carry2 };; 1104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r33]=r28,16 1105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 1106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov carry2=0 1108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 1109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 };; 1110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r24=f116 } 1111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,r17 1113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 };; 1114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r25=f107 } 1115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,r18 1117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,carry1 };; 1118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r26=f98 } 1119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,carry1};; 1121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r19,16 1122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry2 } 1123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; add r25=r25,r24 };; 1125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r16=f117 } 1127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov carry1=0 1128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 1129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 1130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r17=f108 } 1131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 1134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,carry2 };; 1135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; nop.m 0x0 } 1136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,carry2 };; 1139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r33]=r26,16 1140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 1141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; add r17=r17,r16 };; 1143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; getf.sig r24=f118 } 1144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov carry2=0 1145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 1146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,carry1 };; 1147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,carry1};; 1149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r17 1150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry2 };; 1151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; add r24=r24,carry2 };; 1152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; st8 [r33]=r24 } 1153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; rum 1<<5 // clear um.mfh 1155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 1156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_mul_comba8# 1157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef carry3 1158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef carry2 1159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef carry1 1160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 1163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// It's possible to make it faster (see comment to bn_sqr_comba8), but 1164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// I reckon it doesn't worth the effort. Basically because the routine 1165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// (actually both of them) practically never called... So I just play 1166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// same trick as with bn_sqr_comba8. 1167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_sqr_comba4(BN_ULONG *r, BN_ULONG *a) 1169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_sqr_comba4# 1171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_sqr_comba4# 1172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 1173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_sqr_comba4: 1174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 1175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 1176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(_HPUX_SOURCE) && !defined(_LP64) 1177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,2,1,0,0 1178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r32=0,r32 1179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r33=0,r33 };; 1180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 1182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,2,1,0,0 1183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r34=r33 1185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r14=8,r33 };; 1186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 1187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r17=8,r34 1188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r15=16,r33 1189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=16,r34 } 1190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; add r16=24,r33 1191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br .L_cheat_entry_point4 };; 1192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_sqr_comba4# 1193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 1196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Runs in ~115 cycles and ~4.5 times faster than C. Well, whatever... 1197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// void bn_mul_comba4(BN_ULONG *r, BN_ULONG *a, BN_ULONG *b) 1199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define carry1 r14 1201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define carry2 r15 1202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_mul_comba4# 1203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_mul_comba4# 1204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 1205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_mul_comba4: 1206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 1207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 1208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if defined(_HPUX_SOURCE) && !defined(_LP64) 1209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,0,0,0 1210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r33=0,r33 1211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project addp4 r34=0,r34 };; 1212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; addp4 r32=0,r32 1213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 1214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,0,0,0 1215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r14=8,r33 1217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=8,r34 } 1218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 1219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r15=16,r33 1220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=16,r34 1221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r16=24,r33 };; 1222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_cheat_entry_point4: 1223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; add r19=24,r34 1224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f32=[r33] } 1226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f120=[r34] 1228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f121=[r17] };; 1229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f122=[r18] 1230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f123=[r19] } 1231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; ldf8 f33=[r14] 1233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ldf8 f34=[r15] } 1234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; ldf8 f35=[r16] 1235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f41=f32,f120,f0 } 1237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f40=f32,f120,f0 };; 1238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f51=f32,f121,f0 } 1239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f50=f32,f121,f0 };; 1240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f61=f32,f122,f0 } 1241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f60=f32,f122,f0 };; 1242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f71=f32,f123,f0 } 1243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f70=f32,f123,f0 };;// 1244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Major stall takes place here, and 3 more places below. Result from 1245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// first xma is not available for another 3 ticks. 1246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f40 1247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f42=f33,f120,f41 1248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r33=8,r32 } 1249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f41=f33,f120,f41 };; 1250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f50 1251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f52=f33,f121,f51 } 1252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f51=f33,f121,f51 };; 1253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r32]=r16,16 1254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f62=f33,f122,f61 } 1255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f61=f33,f122,f61 };; 1256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.hu f72=f33,f123,f71 } 1257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f71=f33,f123,f71 };;// 1258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 1259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f41 1260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f43=f34,f120,f42 } 1261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f42=f34,f120,f42 };; 1262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r16=f60 1263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f53=f34,f121,f52 } 1264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f52=f34,f121,f52 };; 1265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r17=f51 1266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f63=f34,f122,f62 1267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 } 1268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; mov carry1=0 1269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f62=f34,f122,f62 };; 1270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r33]=r25,16 1271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f73=f34,f123,f72 1272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 } 1273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f72=f34,f123,f72 };;// 1274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 1275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r18=f42 1276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f44=f35,f120,f43 1277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 1278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; add r17=r17,r16 1279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.lu f43=f35,f120,f43 1280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry2=0 };; 1281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r24=f70 1282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f54=f35,f121,f53 1283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 } 1284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f53=f35,f121,f53 };; 1285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r25=f61 1286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f64=f35,f122,f63 1287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 } 1288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f63=f35,f122,f63 1289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 };; 1290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r26=f52 1291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xma.hu f74=f35,f123,f73 1292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,r17 } 1293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xma.lu f73=f35,f123,f73 1294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,carry1 };; 1295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project//-------------------------------------------------// 1296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r18,16 1297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 1298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,carry1 };; 1299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r27=f43 // last major stall 1301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) add carry2=1,carry2 };; 1302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r16=f71 1303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 1304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry1=0 };; 1305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r17=f62 1306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 1307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 1308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 1311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,r26 };; 1312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,r26 1315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r27=r27,carry2 };; 1316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r18=f53 1317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r27,carry2 };; 1319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; st8 [r33]=r27,16 1320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 1321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r19=f44 1323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 1324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry2=0 };; 1325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r24=f72 1326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,r16 1327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r18=r18,r17 };; 1328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r18,r17 1330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,r18 };; 1331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,r18 1333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r19=r19,carry1 };; 1334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r25=f63 1335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry2 1336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r19,carry1};; 1337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r19,16 1338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry2 } 1339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r26=f54 1341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r25=r25,r24 1342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry1=0 };; 1343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r16=f73 1344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r25,r24 1345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,r25 };; 1346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; 1347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,r25 1349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r26=r26,carry2 };; 1350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r17=f64 1351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 1352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p6,p0=r26,carry2 };; 1353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r33]=r26,16 1354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) add carry1=1,carry1 } 1355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; getf.sig r24=f74 1357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,r16 1358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov carry2=0 };; 1359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; cmp.ltu p7,p0=r17,r16 1360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project add r17=r17,carry1 };; 1361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p7) add carry2=1,carry2 1363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.ltu p7,p0=r17,carry1};; 1364656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r32]=r17,16 1365656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p7) add carry2=1,carry2 };; 1366656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1367656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; add r24=r24,carry2 };; 1368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; st8 [r33]=r24 } 1369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; rum 1<<5 // clear um.mfh 1371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b0 };; 1372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_mul_comba4# 1373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef carry2 1374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#undef carry1 1375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 1 1378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// BN_ULONG bn_div_words(BN_ULONG h, BN_ULONG l, BN_ULONG d) 1380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// In the nutshell it's a port of my MIPS III/IV implementation. 1382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define AT r14 1384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define H r16 1385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define HH r20 1386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define L r17 1387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define D r18 1388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define DH r22 1389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define I r21 1390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#if 0 1392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Some preprocessors (most notably HP-UX) appear to be allergic to 1393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// macros enclosed to parenthesis [as these three were]. 1394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define cont p16 1395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define break p0 // p20 1396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define equ p24 1397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#else 1398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectcont=p16 1399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbreak=p0 1400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectequ=p24 1401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global abort# 1404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.global bn_div_words# 1405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.proc bn_div_words# 1406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 64 1407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectbn_div_words: 1408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .prologue 1409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save ar.pfs,r2 1410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; alloc r2=ar.pfs,3,5,0,8 1411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save b0,r3 1412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r3=b0 1413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .save pr,r10 1414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r10=pr };; 1415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmb; cmp.eq p6,p0=r34,r0 1416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r8=-1 1417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.ret.spnt.many b0 };; 1418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project .body 1420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov H=r32 // save h 1421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.ec=0 // don't rotate at exit 1422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr.rot=0 } 1423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov L=r33 // save l 1424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov r36=r0 };; 1425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_divw_shift: // -vv- note signed comparison 1427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; (p0) cmp.lt p16,p0=r0,r34 // d 1428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) shladd r33=r34,1,r0 } 1429656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; (p0) add r35=1,r36 1430656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) nop.f 0x0 1431656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p16) br.wtop.dpnt .L_divw_shift };; 1432656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1433656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; mov D=r34 1434656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shr.u DH=r34,32 1435656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project sub r35=64,r36 };; 1436656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; setf.sig f7=DH 1437656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shr.u AT=H,r35 1438656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov I=r36 };; 1439656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; cmp.ne p6,p0=r0,AT 1440656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl H=H,r36 1441656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) br.call.spnt.clr b0=abort };; // overflow, die... 1442656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1443656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; fcvt.xuf.s1 f7=f7 1444656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shr.u AT=L,r35 };; 1445656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; shl L=L,r36 1446656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project or H=H,AT };; 1447656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1448656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; nop.m 0x0 1449656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.leu p6,p0=D,H;; 1450656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) sub H=H,D } 1451656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1452656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mlx; setf.sig f14=D 1453656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project movl AT=0xffffffff };; 1454656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/////////////////////////////////////////////////////////// 1455656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; setf.sig f6=H 1456656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shr.u HH=H,32;; 1457656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.eq p6,p7=HH,DH };; 1458656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; 1459656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) setf.sig f8=AT 1460656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) fcvt.xuf.s1 f6=f6 1461656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) br.call.sptk b6=.L_udiv64_32_b6 };; 1462656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1463656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r33=f8 // q 1464656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xmpy.lu f9=f8,f14 } 1465656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xmpy.hu f10=f8,f14 1466656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shrp H=H,L,32 };; 1467656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1468656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; getf.sig r35=f9 // tl 1469656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project getf.sig r31=f10 };; // th 1470656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1471656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_divw_1st_iter: 1472656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p0) add r32=-1,r33 1473656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) cmp.eq equ,cont=HH,r31 };; 1474656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p0) cmp.ltu p8,p0=r35,D 1475656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) sub r34=r35,D 1476656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (equ) cmp.leu break,cont=r35,H };; 1477656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (cont) cmp.leu cont,break=HH,r31 1478656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p8) add r31=-1,r31 1479656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(cont) br.wtop.spnt .L_divw_1st_iter };; 1480656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/////////////////////////////////////////////////////////// 1481656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; sub H=H,r35 1482656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl r8=r33,32 1483656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shl L=L,32 };; 1484656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/////////////////////////////////////////////////////////// 1485656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; setf.sig f6=H 1486656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shr.u HH=H,32;; 1487656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project cmp.eq p6,p7=HH,DH };; 1488656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; 1489656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p6) setf.sig f8=AT 1490656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) fcvt.xuf.s1 f6=f6 1491656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(p7) br.call.sptk b6=.L_udiv64_32_b6 };; 1492656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1493656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; getf.sig r33=f8 // q 1494656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project xmpy.lu f9=f8,f14 } 1495656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfi; xmpy.hu f10=f8,f14 1496656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project shrp H=H,L,32 };; 1497656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1498656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mmi; getf.sig r35=f9 // tl 1499656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project getf.sig r31=f10 };; // th 1500656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1501656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_divw_2nd_iter: 1502656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p0) add r32=-1,r33 1503656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) cmp.eq equ,cont=HH,r31 };; 1504656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; (p0) cmp.ltu p8,p0=r35,D 1505656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p0) sub r34=r35,D 1506656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (equ) cmp.leu break,cont=r35,H };; 1507656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mib; (cont) cmp.leu cont,break=HH,r31 1508656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (p8) add r31=-1,r31 1509656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(cont) br.wtop.spnt .L_divw_2nd_iter };; 1510656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/////////////////////////////////////////////////////////// 1511656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; sub H=H,r35 1512656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project or r8=r8,r33 1513656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov ar.pfs=r2 };; 1514656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mii; shr.u r9=H,I // remainder if anybody wants it 1515656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project mov pr=r10,0x1ffff } 1516656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project{ .mfb; br.ret.sptk.many b0 };; 1517656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1518656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Unsigned 64 by 32 (well, by 64 for the moment) bit integer division 1519656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// procedure. 1520656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// 1521656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// inputs: f6 = (double)a, f7 = (double)b 1522656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// output: f8 = (int)(a/b) 1523656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// clobbered: f8,f9,f10,f11,pred 1524656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectpred=p15 1525656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// One can argue that this snippet is copyrighted to Intel 1526656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Corporation, as it's essentially identical to one of those 1527656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// found in "Divide, Square Root and Remainder" section at 1528656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// http://www.intel.com/software/products/opensource/libraries/num.htm. 1529656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// Yes, I admit that the referred code was used as template, 1530656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// but after I realized that there hardly is any other instruction 1531656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// sequence which would perform this operation. I mean I figure that 1532656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// any independent attempt to implement high-performance division 1533656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// will result in code virtually identical to the Intel code. It 1534656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// should be noted though that below division kernel is 1 cycle 1535656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// faster than Intel one (note commented splits:-), not to mention 1536656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project// original prologue (rather lack of one) and epilogue. 1537656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.align 32 1538656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.skip 16 1539656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.L_udiv64_32_b6: 1540656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project frcpa.s1 f8,pred=f6,f7;; // [0] y0 = 1 / b 1541656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1542656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fnma.s1 f9=f7,f8,f1 // [5] e0 = 1 - b * y0 1543656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fmpy.s1 f10=f6,f8;; // [5] q0 = a * y0 1544656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fmpy.s1 f11=f9,f9 // [10] e1 = e0 * e0 1545656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fma.s1 f10=f9,f10,f10;; // [10] q1 = q0 + e0 * q0 1546656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fma.s1 f8=f9,f8,f8 //;; // [15] y1 = y0 + e0 * y0 1547656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fma.s1 f9=f11,f10,f10;; // [15] q2 = q1 + e1 * q1 1548656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fma.s1 f8=f11,f8,f8 //;; // [20] y2 = y1 + e1 * y1 1549656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fnma.s1 f10=f7,f9,f6;; // [20] r2 = a - b * q2 1550656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project(pred) fma.s1 f8=f10,f8,f9;; // [25] q3 = q2 + r2 * y2 1551656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 1552656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project fcvt.fxu.trunc.s1 f8=f8 // [30] q = trunc(q3) 1553656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project br.ret.sptk.many b6;; 1554656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project.endp bn_div_words# 1555656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#endif 1556