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cell: Added CMP instruction

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This commit is contained in:
Jonathan White
2008-09-18 14:49:00 -06:00
parent a8d1521f30
commit 698bffb884
1 changed files with 7 additions and 7 deletions
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src/gallium/drivers/cell/ppu/cell_gen_fp.c
+7 -7
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@@ -835,15 +835,15 @@ emit_CMP(struct codegen *gen, const struct tgsi_full_instruction *inst)
if (inst->FullDstRegisters[0].DstRegister.WriteMask & (1 << ch)) {
int s1_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[0]);
int s2_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[1]);
int s3_reg = get_src_reg(gen, ch, &inst->FullSrcRegisters[2]);
int d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]);
int zero_reg = get_itemp(gen);
spe_xor(gen->f, zero_reg, zero_reg, zero_reg);
/* d = (s1 != s2) */
spe_fceq(gen->f, d_reg, s1_reg, s2_reg);
spe_nor(gen->f, d_reg, d_reg, d_reg);
/* convert d from 0x0/0xffffffff to 0.0/1.0 */
/* d = d & one_reg */
spe_and(gen->f, d_reg, d_reg, get_const_one_reg(gen));
/* d = (s1 < 0) ? s2 : s3 */
spe_fcgt(gen->f, d_reg, zero_reg, s1_reg);
spe_selb(gen->f, d_reg, s3_reg, s2_reg, d_reg);
store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]);
free_itemps(gen);