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DSP: remove redundant expression

This commit is contained in:
Tillmann Karras 2014-02-16 16:48:14 +01:00
parent 1e94853301
commit 9f462a00a0
1 changed files with 3 additions and 3 deletions
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6
Source/Core/Core/DSP/DspIntArithmetic.cpp
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@ -125,18 +125,18 @@ void cmp(const UDSPInstruction opc)
} }
// CMPAR $acS axR.h // CMPAR $acS axR.h
// 1100 0001 xxxx xxxx // 110r s001 xxxx xxxx
// Compares accumulator $acS with accumulator axR.h. // Compares accumulator $acS with accumulator axR.h.
// Not described by Duddie's doc - at least not as a separate instruction. // Not described by Duddie's doc - at least not as a separate instruction.
// //
// flags out: x-xx xxxx // flags out: x-xx xxxx
void cmpar(const UDSPInstruction opc) void cmpar(const UDSPInstruction opc)
{ {
u8 rreg = ((opc >> 12) & 0x1) + DSP_REG_AXH0; u8 rreg = (opc >> 12) & 0x1;
u8 sreg = (opc >> 11) & 0x1; u8 sreg = (opc >> 11) & 0x1;
s64 sr = dsp_get_long_acc(sreg); s64 sr = dsp_get_long_acc(sreg);
s64 rr = (s16)g_dsp.r.ax[rreg-DSP_REG_AXH0].h; s64 rr = (s16)g_dsp.r.ax[rreg].h;
rr <<= 16; rr <<= 16;
s64 res = dsp_convert_long_acc(sr - rr); s64 res = dsp_convert_long_acc(sr - rr);