From c868a1c32d70295f425333f9e8a35235b129704b Mon Sep 17 00:00:00 2001 From: Jonathan White Date: Thu, 18 Sep 2008 10:36:09 -0600 Subject: cell: Added SGE and SLE instructions --- src/gallium/drivers/cell/ppu/cell_gen_fp.c | 62 ++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) (limited to 'src') diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fp.c b/src/gallium/drivers/cell/ppu/cell_gen_fp.c index 77386b3025..92681408e9 100644 --- a/src/gallium/drivers/cell/ppu/cell_gen_fp.c +++ b/src/gallium/drivers/cell/ppu/cell_gen_fp.c @@ -696,6 +696,68 @@ emit_SLT(struct codegen *gen, const struct tgsi_full_instruction *inst) return true; } +/** + * Emit set-if_greater-then-or-equal. See emit_SGT for comments. + */ +static boolean +emit_SGE(struct codegen *gen, const struct tgsi_full_instruction *inst) +{ + int ch; + + spe_comment(gen->f, -4, "SGE:"); + + for (ch = 0; ch < 4; ch++) { + 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 d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + + /* d = (s1 >= s2) */ + spe_fcgt(gen->f, d_reg, s2_reg, s1_reg); + + /* convert d from 0x0/0xffffffff to 0.0/1.0 */ + /* d = d & ~one_reg */ + spe_andc(gen->f, d_reg, d_reg, get_const_one_reg(gen)); + + store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); + free_itemps(gen); + } + } + + return true; +} + +/** + * Emit set-if_less-then-or-equal. See emit_SGT for comments. + */ +static boolean +emit_SLE(struct codegen *gen, const struct tgsi_full_instruction *inst) +{ + int ch; + + spe_comment(gen->f, -4, "SLE:"); + + for (ch = 0; ch < 4; ch++) { + 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 d_reg = get_dst_reg(gen, ch, &inst->FullDstRegisters[0]); + + /* d = (s1 <= s2) */ + spe_fcgt(gen->f, d_reg, s1_reg, s2_reg); + + /* convert d from 0x0/0xffffffff to 0.0/1.0 */ + /* d = d & ~one_reg */ + spe_andc(gen->f, d_reg, d_reg, get_const_one_reg(gen)); + + store_dest_reg(gen, d_reg, ch, &inst->FullDstRegisters[0]); + free_itemps(gen); + } + } + + return true; +} + /** * Emit set-if_equal. See emit_SGT for comments. */ -- cgit v1.2.3