summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJonathan White <jwhite@tungstengraphics.com>2008-09-18 14:49:00 -0600
committerJonathan White <jwhite@tungstengraphics.com>2008-09-18 14:49:34 -0600
commit698bffb8844f6f45e09ed0c9fea39298ac6423d2 (patch)
tree2b0138c1b795f86ffee51787e5363ffc585c38f9
parenta8d1521f30766b6a4707aa9966e1f2f9c0b3ac00 (diff)
cell: Added CMP instruction
-rw-r--r--src/gallium/drivers/cell/ppu/cell_gen_fp.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fp.c b/src/gallium/drivers/cell/ppu/cell_gen_fp.c
index 4f01897199..6f2b89c695 100644
--- a/src/gallium/drivers/cell/ppu/cell_gen_fp.c
+++ b/src/gallium/drivers/cell/ppu/cell_gen_fp.c
@@ -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);