1abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill/* 2abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * This file is subject to the terms and conditions of the GNU General Public 3abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * License. See the file "COPYING" in the main directory of this archive 4abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * for more details. 5abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * 6abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * A small micro-assembler. It is intentionally kept simple, does only 7abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * support a subset of instructions, and does not try to hide pipeline 8abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * effects like branch delay slots. 9abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * 10abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer 11abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * Copyright (C) 2005, 2007 Maciej W. Rozycki 12abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) 13abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * Copyright (C) 2012, 2013 MIPS Technologies, Inc. All rights reserved. 14abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill */ 15abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 16abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <linux/kernel.h> 17abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <linux/types.h> 18abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 19abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <asm/inst.h> 20abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <asm/elf.h> 21abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <asm/bugs.h> 22cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#define UASM_ISA _UASM_ISA_CLASSIC 23abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include <asm/uasm.h> 24abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 25abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define RS_MASK 0x1f 26abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define RS_SH 21 27abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define RT_MASK 0x1f 28abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define RT_SH 16 29abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define SCIMM_MASK 0xfffff 30abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define SCIMM_SH 6 31abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 32abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill/* This macro sets the non-variable bits of an instruction. */ 33abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#define M(a, b, c, d, e, f) \ 34abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill ((a) << OP_SH \ 35abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill | (b) << RS_SH \ 36abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill | (c) << RT_SH \ 37abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill | (d) << RD_SH \ 38abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill | (e) << RE_SH \ 39abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill | (f) << FUNC_SH) 40abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 41cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill/* Define these when we are not the ISA the kernel is being compiled with. */ 42cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#ifdef CONFIG_CPU_MICROMIPS 43cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#define CL_uasm_i_b(buf, off) ISAOPC(_beq)(buf, 0, 0, off) 44cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#define CL_uasm_i_beqz(buf, rs, off) ISAOPC(_beq)(buf, rs, 0, off) 45cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#define CL_uasm_i_beqzl(buf, rs, off) ISAOPC(_beql)(buf, rs, 0, off) 46cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#define CL_uasm_i_bnez(buf, rs, off) ISAOPC(_bne)(buf, rs, 0, off) 47cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill#endif 48cf6d905828c2c75ebe8c818901e71e09ffe6f629Steven J. Hill 49abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#include "uasm.c" 50abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 51078a55fc824c1633b3a507e4ad48b4637c1dfc18Paul Gortmakerstatic struct insn insn_table[] = { 52abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_addiu, M(addiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 53abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_addu, M(spec_op, 0, 0, 0, 0, addu_op), RS | RT | RD }, 54abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_andi, M(andi_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, 55abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_and, M(spec_op, 0, 0, 0, 0, and_op), RS | RT | RD }, 56abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bbit0, M(lwc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, 57abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bbit1, M(swc2_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, 58abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_beql, M(beql_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, 59abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_beq, M(beq_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, 60abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bgezl, M(bcond_op, 0, bgezl_op, 0, 0, 0), RS | BIMM }, 61abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bgez, M(bcond_op, 0, bgez_op, 0, 0, 0), RS | BIMM }, 62abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bltzl, M(bcond_op, 0, bltzl_op, 0, 0, 0), RS | BIMM }, 63abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bltz, M(bcond_op, 0, bltz_op, 0, 0, 0), RS | BIMM }, 64abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_bne, M(bne_op, 0, 0, 0, 0, 0), RS | RT | BIMM }, 65abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_cache, M(cache_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 66abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_daddiu, M(daddiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 67abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_daddu, M(spec_op, 0, 0, 0, 0, daddu_op), RS | RT | RD }, 68abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dinsm, M(spec3_op, 0, 0, 0, 0, dinsm_op), RS | RT | RD | RE }, 69abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE }, 704c12a854d81db5454436c015ec30f39882e923a4Markos Chandras { insn_divu, M(spec_op, 0, 0, 0, 0, divu_op), RS | RT }, 71abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dmfc0, M(cop0_op, dmfc_op, 0, 0, 0, 0), RT | RD | SET}, 72abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dmtc0, M(cop0_op, dmtc_op, 0, 0, 0, 0), RT | RD | SET}, 73abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_drotr32, M(spec_op, 1, 0, 0, 0, dsrl32_op), RT | RD | RE }, 74abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_drotr, M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE }, 75abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsll32, M(spec_op, 0, 0, 0, 0, dsll32_op), RT | RD | RE }, 76abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsll, M(spec_op, 0, 0, 0, 0, dsll_op), RT | RD | RE }, 77abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE }, 78abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE }, 79abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE }, 80abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD }, 81abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 }, 82abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ext, M(spec3_op, 0, 0, 0, 0, ext_op), RS | RT | RD | RE }, 83abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ins, M(spec3_op, 0, 0, 0, 0, ins_op), RS | RT | RD | RE }, 84abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, 85abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_jal, M(jal_op, 0, 0, 0, 0, 0), JIMM }, 8649e9529b9d43773307b8c73bd251b71784830c3dPaul Burton { insn_jalr, M(spec_op, 0, 0, 0, 0, jalr_op), RS | RD }, 87abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, 88abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_jr, M(spec_op, 0, 0, 0, 0, jr_op), RS }, 898248881835da58fa075299926c2994d12b56895bMarkos Chandras { insn_lb, M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 90abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 91abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ldx, M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD }, 9284c68cbc667287dfd5eb793b6715c6d76a318e3fMarkos Chandras { insn_lh, M(lh_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 93abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 94abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 95abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM }, 96abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 97abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_lwx, M(spec3_op, 0, 0, 0, lwx_op, lx_op), RS | RT | RD }, 98abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET}, 99f3ec7a23b640a064410e31afe9a203f7c125460eMarkos Chandras { insn_mfhi, M(spec_op, 0, 0, 0, 0, mfhi_op), RD }, 10016d21a812f6bfcbfa84ccc19d38abe797c71b73eMarkos Chandras { insn_mflo, M(spec_op, 0, 0, 0, 0, mflo_op), RD }, 101abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET}, 102a8e897ad00d3cfd0ab9029978f0c3f8ecd6fba61Markos Chandras { insn_mul, M(spec2_op, 0, 0, 0, 0, mul_op), RS | RT | RD}, 103abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, 104abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_or, M(spec_op, 0, 0, 0, 0, or_op), RS | RT | RD }, 105abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_pref, M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 106abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 }, 107abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_rotr, M(spec_op, 1, 0, 0, 0, srl_op), RT | RD | RE }, 108abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_scd, M(scd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 109abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_sc, M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 110abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 111abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, 112bef581ba1c240cda9c550d314ca70c2b8deb6e87Markos Chandras { insn_sllv, M(spec_op, 0, 0, 0, 0, sllv_op), RS | RT | RD }, 1137682f9e81899f1f874bd565daa7fb0b20024ed80Markos Chandras { insn_slt, M(spec_op, 0, 0, 0, 0, slt_op), RS | RT | RD }, 114390363ed77c05f4971254bebc96554afb79dd453Markos Chandras { insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 115e8ef868b470984064c23ce4bf2cd4c0167e1fbe5Markos Chandras { insn_sltu, M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD }, 116abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, 117abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE }, 118f31318fdf324901ce5a17ccc3d71213117fb44afMarkos Chandras { insn_srlv, M(spec_op, 0, 0, 0, 0, srlv_op), RS | RT | RD }, 119abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD }, 120abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 121729ff56169395cb3e467e4e3c1e2637f4d3436cePaul Burton { insn_sync, M(spec_op, 0, 0, 0, 0, sync_op), RE }, 122abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM}, 123abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 }, 124abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_tlbr, M(cop0_op, cop_op, 0, 0, 0, tlbr_op), 0 }, 125abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 }, 126abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 }, 12753ed138986e1022c2b6fef7f8e9731f5bf3e6af1Paul Burton { insn_wait, M(cop0_op, cop_op, 0, 0, 0, wait_op), SCIMM }, 128ab9e4fa092db6c4beea8fde67261959520675456Markos Chandras { insn_wsbh, M(spec3_op, 0, 0, 0, wsbh_op, bshfl_op), RT | RD }, 129abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, 130abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD }, 131d674dd14e85c49ca0e422de53a4c2b5bf44a339aPaul Burton { insn_yield, M(spec3_op, 0, 0, 0, 0, yield_op), RS | RD }, 132abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill { insn_invalid, 0, 0 } 133abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill}; 134abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 135abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill#undef M 136abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 137078a55fc824c1633b3a507e4ad48b4637c1dfc18Paul Gortmakerstatic inline u32 build_bimm(s32 arg) 138abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill{ 139abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill WARN(arg > 0x1ffff || arg < -0x20000, 140abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill KERN_WARNING "Micro-assembler field overflow\n"); 141abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 142abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill WARN(arg & 0x3, KERN_WARNING "Invalid micro-assembler branch target\n"); 143abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 144abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill return ((arg < 0) ? (1 << 15) : 0) | ((arg >> 2) & 0x7fff); 145abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill} 146abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 147078a55fc824c1633b3a507e4ad48b4637c1dfc18Paul Gortmakerstatic inline u32 build_jimm(u32 arg) 148abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill{ 149abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill WARN(arg & ~(JIMM_MASK << 2), 150abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill KERN_WARNING "Micro-assembler field overflow\n"); 151abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 152abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill return (arg >> 2) & JIMM_MASK; 153abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill} 154abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 155abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill/* 156abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * The order of opcode arguments is implicitly left to right, 157abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill * starting with RS and ending with FUNC or IMM. 158abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill */ 159078a55fc824c1633b3a507e4ad48b4637c1dfc18Paul Gortmakerstatic void build_insn(u32 **buf, enum opcode opc, ...) 160abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill{ 161abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill struct insn *ip = NULL; 162abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill unsigned int i; 163abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill va_list ap; 164abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill u32 op; 165abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 166abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill for (i = 0; insn_table[i].opcode != insn_invalid; i++) 167abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (insn_table[i].opcode == opc) { 168abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill ip = &insn_table[i]; 169abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill break; 170abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill } 171abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 172abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (!ip || (opc == insn_daddiu && r4k_daddiu_bug())) 173abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill panic("Unsupported Micro-assembler instruction %d", opc); 174abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 175abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op = ip->match; 176abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill va_start(ap, opc); 177abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & RS) 178abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_rs(va_arg(ap, u32)); 179abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & RT) 180abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_rt(va_arg(ap, u32)); 181abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & RD) 182abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_rd(va_arg(ap, u32)); 183abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & RE) 184abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_re(va_arg(ap, u32)); 185abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & SIMM) 186abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_simm(va_arg(ap, s32)); 187abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & UIMM) 188abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_uimm(va_arg(ap, u32)); 189abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & BIMM) 190abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_bimm(va_arg(ap, s32)); 191abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & JIMM) 192abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_jimm(va_arg(ap, u32)); 193abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & FUNC) 194abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_func(va_arg(ap, u32)); 195abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & SET) 196abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_set(va_arg(ap, u32)); 197abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill if (ip->fields & SCIMM) 198abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill op |= build_scimm(va_arg(ap, u32)); 199abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill va_end(ap); 200abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 201abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill **buf = op; 202abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill (*buf)++; 203abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill} 204abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 205078a55fc824c1633b3a507e4ad48b4637c1dfc18Paul Gortmakerstatic inline void 206abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill__resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab) 207abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill{ 208abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill long laddr = (long)lab->addr; 209abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill long raddr = (long)rel->addr; 210abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 211abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill switch (rel->type) { 212abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill case R_MIPS_PC16: 213abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill *rel->addr |= build_bimm(laddr - (raddr + 4)); 214abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill break; 215abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill 216abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill default: 217abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill panic("Unsupported Micro-assembler relocation %d", 218abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill rel->type); 219abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill } 220abc597fe623cfd7d3b18d5235c54f3d567d2c3d3Steven J. Hill} 221