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DSPLLE - 2 new opcodes (TSTPROD,MULAXH)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5104 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar
2010-02-22 00:22:04 +00:00
parent 1824b5b25a
commit 74a6b5638f
4 changed files with 27 additions and 6 deletions
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19
Source/Core/DSPCore/Src/DspIntMultiplier.cpp
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@ -158,6 +158,25 @@ void movpz(const UDSPInstruction& opc)
Update_SR_Register64(acc);
}
// MULAXH
// 1000 0011 xxxx xxxx
// Multiply $ax0.h by $ax0.h
void mulaxh(const UDSPInstruction& opc)
{
s64 prod = dsp_multiply(dsp_get_ax_h(0), dsp_get_ax_h(0));
zeroWriteBackLog();
dsp_set_long_prod(prod);
}
// TSTPROD
// 1000 0101 xxxx xxxx
// Test prod regs value.
void tstprod(const UDSPInstruction& opc)
{
s64 prod = dsp_get_long_prod();
Update_SR_Register64(prod);
zeroWriteBackLog();
}
// MULC $acS.m, $axT.h
// 110s t000 xxxx xxxx