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ppu-interpreter: improve vsl/vsr instructions

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scribam 2018-10-07 21:40:39 +02:00 committed by Ivan
parent cc846eb670
commit 39272eef45
1 changed files with 3 additions and 1 deletions
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4
rpcs3/Emu/Cell/PPUInterpreter.cpp
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@ -1909,6 +1909,7 @@ bool ppu_interpreter::VSL(ppu_thread& ppu, ppu_opcode_t op)
d._u8[0] = VA._u8[0] << sh;
for (uint b = 1; b < 16; b++)
{
sh = ppu.vr[op.vb]._u8[b] & 0x7;
d._u8[b] = (VA._u8[b] << sh) | (VA._u8[b - 1] >> (8 - sh));
}
return true;
@ -2062,11 +2063,12 @@ bool ppu_interpreter::VSR(ppu_thread& ppu, ppu_opcode_t op)
{
auto& d = ppu.vr[op.vd];
v128 VA = ppu.vr[op.va];
u8 sh = ppu.vr[op.vb]._u8[0] & 0x7;
u8 sh = ppu.vr[op.vb]._u8[15] & 0x7;
d._u8[15] = VA._u8[15] >> sh;
for (uint b = 14; ~b; b--)
{
sh = ppu.vr[op.vb]._u8[b] & 0x7;
d._u8[b] = (VA._u8[b] >> sh) | (VA._u8[b + 1] << (8 - sh));
}
return true;