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libgambatte/video: move m0irq to its own header

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This commit is contained in:
sinamas 2013-03-18 23:14:48 +01:00
parent 4b51300899
commit f102bb4fc1
2 changed files with 61 additions and 50 deletions
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51
libgambatte/src/video.h
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@ -24,6 +24,7 @@
#include "osd_element.h"
#include "scoped_ptr.h"
#include "video/lyc_irq.h"
#include "video/m0_irq.h"
#include "video/next_m0_time.h"
#include "video/ppu.h"
@ -44,56 +45,6 @@ private:
InterruptRequester *const intreq_;
};
class M0Irq {
public:
M0Irq()
: statReg_(0)
, lycReg_(0)
{
}
void lcdReset(unsigned statReg, unsigned lycReg) {
statReg_ = statReg;
lycReg_ = lycReg;
}
void statRegChange(unsigned statReg,
unsigned long nextM0IrqTime, unsigned long cc, bool cgb) {
if (nextM0IrqTime - cc > cgb * 2U)
statReg_ = statReg;
}
void lycRegChange(unsigned lycReg,
unsigned long nextM0IrqTime, unsigned long cc,
bool ds, bool cgb) {
if (nextM0IrqTime - cc > cgb * 5 + 1U - ds)
lycReg_ = lycReg;
}
void doEvent(unsigned char *ifreg, unsigned ly, unsigned statReg, unsigned lycReg) {
if (((statReg_ | statReg) & 0x08) && (!(statReg_ & 0x40) || ly != lycReg_))
*ifreg |= 2;
statReg_ = statReg;
lycReg_ = lycReg;
}
void saveState(SaveState &state) const {
state.ppu.m0lyc = lycReg_;
}
void loadState(SaveState const &state) {
lycReg_ = state.ppu.m0lyc;
statReg_ = state.mem.ioamhram.get()[0x141];
}
unsigned statReg() const { return statReg_; }
private:
unsigned char statReg_;
unsigned char lycReg_;
};
class LCD {
public:
LCD(unsigned char const *oamram, unsigned char const *vram,

60
libgambatte/src/video/m0_irq.h Normal file
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@ -0,0 +1,60 @@
#ifndef M0_IRQ_H
#define M0_IRQ_H
#include "../savestate.h"
namespace gambatte {
class M0Irq {
public:
M0Irq()
: statReg_(0)
, lycReg_(0)
{
}
void lcdReset(unsigned statReg, unsigned lycReg) {
statReg_ = statReg;
lycReg_ = lycReg;
}
void statRegChange(unsigned statReg,
unsigned long nextM0IrqTime, unsigned long cc, bool cgb) {
if (nextM0IrqTime - cc > cgb * 2U)
statReg_ = statReg;
}
void lycRegChange(unsigned lycReg,
unsigned long nextM0IrqTime, unsigned long cc,
bool ds, bool cgb) {
if (nextM0IrqTime - cc > cgb * 5 + 1U - ds)
lycReg_ = lycReg;
}
void doEvent(unsigned char *ifreg, unsigned ly, unsigned statReg, unsigned lycReg) {
if (((statReg_ | statReg) & 0x08) && (!(statReg_ & 0x40) || ly != lycReg_))
*ifreg |= 2;
statReg_ = statReg;
lycReg_ = lycReg;
}
void saveState(SaveState &state) const {
state.ppu.m0lyc = lycReg_;
}
void loadState(SaveState const &state) {
lycReg_ = state.ppu.m0lyc;
statReg_ = state.mem.ioamhram.get()[0x141];
}
unsigned statReg() const { return statReg_; }
private:
unsigned char statReg_;
unsigned char lycReg_;
};
}
#endif