diff options
| author | Nebuleon Fumika | 2012-12-26 14:42:02 -0500 |
|---|---|---|
| committer | Nebuleon Fumika | 2012-12-26 14:42:02 -0500 |
| commit | e5869adc4469115c7eac9abf70145fc178e017de (patch) | |
| tree | 552805b1c150fea2f5e905e550d034f71c03fb75 /source/apu.h | |
| parent | 139c793b584a76acd42d72ec019d2cabab7d3ee7 (diff) | |
| download | snesemu-e5869adc4469115c7eac9abf70145fc178e017de.tar.gz snesemu-e5869adc4469115c7eac9abf70145fc178e017de.tar.bz2 snesemu-e5869adc4469115c7eac9abf70145fc178e017de.zip | |
Merge Registers structures into their respective CPUs to avoid additional memory addresses being loaded every opcode.
Diffstat (limited to 'source/apu.h')
| -rw-r--r-- | source/apu.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/source/apu.h b/source/apu.h index 0a64e34..67b2525 100644 --- a/source/apu.h +++ b/source/apu.h @@ -95,6 +95,7 @@ struct SIAPU { uint8 *PC; + struct SAPURegisters Registers; uint8 *RAM; uint8 *DirectPage; bool8 APUExecuting; @@ -136,15 +137,15 @@ extern int spc_is_dumping_temp; extern uint8 spc_dump_dsp[0x100]; STATIC inline void S9xAPUUnpackStatus() { - IAPU._Zero = ((APURegisters.P & Zero) == 0) | (APURegisters.P & Negative); - IAPU._Carry = (APURegisters.P & Carry); - IAPU._Overflow = (APURegisters.P & Overflow) >> 6; + IAPU._Zero = ((IAPU.Registers.P & Zero) == 0) | (IAPU.Registers.P & Negative); + IAPU._Carry = (IAPU.Registers.P & Carry); + IAPU._Overflow = (IAPU.Registers.P & Overflow) >> 6; } STATIC inline void S9xAPUPackStatus() { - APURegisters.P &= ~(Zero | Negative | Carry | Overflow); - APURegisters.P |= IAPU._Carry | ((IAPU._Zero == 0) << 1) | + IAPU.Registers.P &= ~(Zero | Negative | Carry | Overflow); + IAPU.Registers.P |= IAPU._Carry | ((IAPU._Zero == 0) << 1) | (IAPU._Zero & 0x80) | (IAPU._Overflow << 6); } @@ -162,8 +163,8 @@ void S9xSetAPUTimer (uint16 Address, uint8 byte); bool8 S9xInitSound (int quality, bool8 stereo, int buffer_size); void S9xOpenCloseSoundTracingFile (bool8); void S9xPrintAPUState (); -extern int32 S9xAPUCycles [256]; // Scaled cycle lengths -extern int32 S9xAPUCycleLengths [256]; // Raw data. +extern uint16 S9xAPUCycles [256]; // Scaled cycle lengths +extern uint16 S9xAPUCycleLengths [256]; // Raw data. extern void (*S9xApuOpcodes [256]) (void); END_EXTERN_C |