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DSPLLE - flags&stuff (more later)

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5093 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar
2010-02-21 10:35:28 +00:00
parent 2aa03f5b3b
commit 885299d985
5 changed files with 35 additions and 23 deletions
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24
Source/Core/DSPCore/Src/DSPIntCCUtil.cpp
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@ -26,7 +26,7 @@
namespace DSPInterpreter {
void Update_SR_Register64(s64 _Value, bool carry, bool overflow, bool sr10)
void Update_SR_Register64(s64 _Value, bool carry, bool overflow)
{
// TODO: recheck 0x1,0x2,even 0x80... implement...
g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
@ -55,10 +55,10 @@ void Update_SR_Register64(s64 _Value, bool carry, bool overflow, bool sr10)
g_dsp.r[DSP_REG_SR] |= SR_SIGN;
}
// 0x10 - abs((u40)acc?) >= 0x80000000
if (sr10)
// 0x10
if (_Value != (s32)_Value)
{
g_dsp.r[DSP_REG_SR] |= SR_10;
g_dsp.r[DSP_REG_SR] |= SR_OVER_S32;
}
// 0x20 - Checks if top bits of m are equal, what is it good for?
@ -66,10 +66,14 @@ void Update_SR_Register64(s64 _Value, bool carry, bool overflow, bool sr10)
{
g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS;
}
// 0x80
{
}
}
void Update_SR_Register16(s16 _Value, bool carry, bool overflow, bool sr10)
void Update_SR_Register16(s16 _Value, bool carry, bool overflow, bool overS32)
{
// TODO: recheck 0x1,0x2,even 0x80... implement...
g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK;
@ -98,10 +102,10 @@ void Update_SR_Register16(s16 _Value, bool carry, bool overflow, bool sr10)
g_dsp.r[DSP_REG_SR] |= SR_SIGN;
}
// 0x10 - abs((u40)acc?) >= 0x80000000
if (sr10)
// 0x10
if (overS32)
{
g_dsp.r[DSP_REG_SR] |= SR_10;
g_dsp.r[DSP_REG_SR] |= SR_OVER_S32;
}
// 0x20 - Checks if top bits of m are equal, what is it good for?
@ -109,6 +113,10 @@ void Update_SR_Register16(s16 _Value, bool carry, bool overflow, bool sr10)
{
g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS;
}
// 0x80
{
}
}
void Update_SR_LZ(bool value) {