196f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz/*
296f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz * Copyright 2007 Analog Devices Inc.
396f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz *
496f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz * Licensed under the ADI BSD license or the GPL-2 (or later)
596f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz */
696f1050d3df105c9ae6c6ac224f370199ea82fcdRobin Getz
71394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu.align 2
81394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu.global ___umulsi3_highpart;
91394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu.type ___umulsi3_highpart, STT_FUNC;
101394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu
111394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu#ifdef CONFIG_ARITHMETIC_OPS_L1
121394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu.section .l1.text
131394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu#else
141394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu.text
151394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu#endif
161394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu
171394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu___umulsi3_highpart:
181394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R2 = R1.H * R0.H, R3 = R1.L * R0.H (FU);
191394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R0 = R1.L * R0.L, R1 = R1.H * R0.L (FU);
201394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R0 >>= 16;
211394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	/* Unsigned multiplication has the nice property that we can
221394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	   ignore carry on this first addition.  */
231394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R0 = R0 + R3;
241394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R0 = R0 + R1;
251394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	cc = ac0;
261394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R1 = cc;
271394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R1 = PACK(R1.l,R0.h);
281394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	R0 = R1 + R2;
291394f03221790a988afc3e4b3cb79f2e477246a9Bryan Wu	RTS;
3051be24c351bc9ee4937121100adb098eeb1effddMike Frysinger
3151be24c351bc9ee4937121100adb098eeb1effddMike Frysinger.size ___umulsi3_highpart, .-___umulsi3_highpart
32