mirror/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-03-15 13:21:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

PPU LLVM: simplify VSUBCUW, VSUBUBS, VSUBUHS, VSUBUWS

Browse Source
This commit is contained in:
Nekotekina 2018-07-05 15:01:38 +03:00
parent 9d9869e803
commit 2f0dc9bd0f
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
rpcs3/Emu/Cell/PPUTranslator.cpp
View File

@ -1477,7 +1477,7 @@ void PPUTranslator::VSUBCUW(ppu_opcode_t op)
{
const auto a = get_vr<u32[4]>(op.va);
const auto b = get_vr<u32[4]>(op.vb);
set_vr(op.vd, eval(~ucarry(b, eval(a - b), a) >> 31));
set_vr(op.vd, zext<u32[4]>(a >= b));
}
void PPUTranslator::VSUBFP(ppu_opcode_t op)
@ -1529,11 +1529,11 @@ void PPUTranslator::VSUBUBM(ppu_opcode_t op)
void PPUTranslator::VSUBUBS(ppu_opcode_t op)
{
const auto a = get_vr<s8[16]>(op.va);
const auto b = get_vr<s8[16]>(op.vb);
const auto a = get_vr<u8[16]>(op.va);
const auto b = get_vr<u8[16]>(op.vb);
const auto d = eval(a - b);
const auto x = eval(ucarry(b, d, a) >> 7);
set_vr(op.vd, eval(d & ~x));
const auto x = eval(a < b);
set_vr(op.vd, select(x, splat<u8[16]>(0), d));
SetSat(IsNotZero(x.value));
}
@ -1546,11 +1546,11 @@ void PPUTranslator::VSUBUHM(ppu_opcode_t op)
void PPUTranslator::VSUBUHS(ppu_opcode_t op)
{
const auto a = get_vr<s16[8]>(op.va);
const auto b = get_vr<s16[8]>(op.vb);
const auto a = get_vr<u16[8]>(op.va);
const auto b = get_vr<u16[8]>(op.vb);
const auto d = eval(a - b);
const auto x = eval(ucarry(b, d, a) >> 15);
set_vr(op.vd, eval(d & ~x));
const auto x = eval(a < b);
set_vr(op.vd, select(x, splat<u16[8]>(0), d));
SetSat(IsNotZero(x.value));
}
@ -1563,11 +1563,11 @@ void PPUTranslator::VSUBUWM(ppu_opcode_t op)
void PPUTranslator::VSUBUWS(ppu_opcode_t op)
{
const auto a = get_vr<s32[4]>(op.va);
const auto b = get_vr<s32[4]>(op.vb);
const auto a = get_vr<u32[4]>(op.va);
const auto b = get_vr<u32[4]>(op.vb);
const auto d = eval(a - b);
const auto x = eval(ucarry(b, d, a) >> 31);
set_vr(op.vd, eval(d & ~x));
const auto x = eval(a < b);
set_vr(op.vd, select(x, splat<u32[4]>(0), d));
SetSat(IsNotZero(x.value));
}