diff options
Diffstat (limited to 'Source/Core/DSPCore/Src/DSPIntCCUtil.cpp')
| -rw-r--r-- | Source/Core/DSPCore/Src/DSPIntCCUtil.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp b/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp index bdbf8c0584..9b78a11ab6 100644 --- a/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp +++ b/Source/Core/DSPCore/Src/DSPIntCCUtil.cpp @@ -28,6 +28,7 @@ namespace DSPInterpreter { void Update_SR_Register64(s64 _Value) { + // TODO: Should also set 0x10 and 0x01 g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK; if (_Value < 0) @@ -40,17 +41,20 @@ void Update_SR_Register64(s64 _Value) g_dsp.r[DSP_REG_SR] |= SR_ARITH_ZERO; } - // weird - if ((_Value >> 62) == 0) + // Checks if top bits are equal, what is it good for? + if ((_Value >> 62) == 0 || _Value >> 62 == 3) { - g_dsp.r[DSP_REG_SR] |= 0x20; + g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS; } } + void Update_SR_Register16(s16 _Value) { g_dsp.r[DSP_REG_SR] &= ~SR_CMP_MASK; + // Only sets those 3 bits + if (_Value < 0) { g_dsp.r[DSP_REG_SR] |= SR_SIGN; @@ -61,10 +65,10 @@ void Update_SR_Register16(s16 _Value) g_dsp.r[DSP_REG_SR] |= SR_ARITH_ZERO; } - // weird - if ((_Value >> 14) == 0) + // Checks if top bits are equal, what is it good for? + if ((_Value >> 14) == 0 || _Value >> 14 == 3) { - g_dsp.r[DSP_REG_SR] |= 0x20; + g_dsp.r[DSP_REG_SR] |= SR_TOP2BITS; } } |