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DSPLLE - AR decrement fixed, +other small fixes

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5437 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar
2010-05-07 19:32:16 +00:00
parent f72616daa3
commit f6ce87765f
6 changed files with 72 additions and 90 deletions
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6
Source/Core/DSPCore/Src/DspIntArithmetic.cpp
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@ -41,14 +41,14 @@ void clr(const UDSPInstruction opc)
// CLRL $acR.l
// 1111 110r xxxx xxxx
// Clears $acR.l - low 16 bits of accumulator $acR.
// Clears (and rounds!) $acR.l - low 16 bits of accumulator $acR.
//
// flags out: --xx xx00
void clrl(const UDSPInstruction opc)
{
u8 reg = (opc >> 8) & 0x1;
s64 acc = (dsp_get_long_acc(reg) + 0x8000) & ~0xffff;
s64 acc = (dsp_get_long_acc(reg) + 0x7fff) & ~0xffff;
zeroWriteBackLog();
@ -853,7 +853,7 @@ void lsl(const UDSPInstruction opc)
// LSR $acR, #I
// 0001 010r 01ii iiii
// Logically shifts left accumulator $acR by number specified by value
// Logically shifts right accumulator $acR by number specified by value
// calculated by negating sign extended bits 0-6.
//
// flags out: --xx xx00