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Probably correct vupkh|lsb.

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This commit is contained in:
Ben Vanik
2014-01-12 15:41:18 -08:00
parent eb5d7e0f31
commit f6866098c5
3 changed files with 56 additions and 23 deletions
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20
src/alloy/backend/ivm/ivm_intcode.cc
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@@ -3790,6 +3790,8 @@ int Translate_PACK(TranslationContext& ctx, Instr* i) {
IntCode_PACK_FLOAT16_2,
IntCode_PACK_FLOAT16_4,
IntCode_PACK_SHORT_2,
IntCode_INVALID_TYPE,
IntCode_INVALID_TYPE,
};
return DispatchToC(ctx, i, fns[i->flags]);
}
@@ -3844,12 +3846,30 @@ uint32_t IntCode_UNPACK_SHORT_2(IntCodeState& ics, const IntCode* i) {
dest.f4[3] = 1.0f; // 3?
return IA_NEXT;
}
uint32_t IntCode_UNPACK_S8_IN_16_LO(IntCodeState& ics, const IntCode* i) {
const vec128_t& src1 = ics.rf[i->src1_reg].v128;
vec128_t& dest = ics.rf[i->dest_reg].v128;
for (int n = 0; n < 8; n++) {
dest.s8[n] = (int16_t)(int8_t)src1.b16[8 + n];
}
return IA_NEXT;
}
uint32_t IntCode_UNPACK_S8_IN_16_HI(IntCodeState& ics, const IntCode* i) {
const vec128_t& src1 = ics.rf[i->src1_reg].v128;
vec128_t& dest = ics.rf[i->dest_reg].v128;
for (int n = 0; n < 8; n++) {
dest.s8[n] = (int16_t)(int8_t)src1.b16[n];
}
return IA_NEXT;
}
int Translate_UNPACK(TranslationContext& ctx, Instr* i) {
static IntCodeFn fns[] = {
IntCode_UNPACK_D3DCOLOR,
IntCode_UNPACK_FLOAT16_2,
IntCode_UNPACK_FLOAT16_4,
IntCode_UNPACK_SHORT_2,
IntCode_UNPACK_S8_IN_16_LO,
IntCode_UNPACK_S8_IN_16_HI,
};
return DispatchToC(ctx, i, fns[i->flags]);
}