godzil/quickdev16
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

o remove old bsnes version

Browse Source
This commit is contained in:
David Voswinkel
2009-05-12 19:44:23 +02:00
parent 9cf6eae076
commit 1c30d3db56
401 changed files with 0 additions and 68623 deletions
Download Patch File Download Diff File Expand all files Collapse all files

73
tools/bsnes/ppu/counter.hpp
View File

@@ -1,73 +0,0 @@
class PPUcounter {
public:
alwaysinline void tick() {
history.ppudiff += 2;
status.hcounter += 2;
if(status.hcounter >= 1360 && status.hcounter == lineclocks()) {
status.hcounter = 0;
status.vcounter++;
if((region() == 0 && interlace() == false && status.vcounter == 262)
|| (region() == 0 && interlace() == true && status.vcounter == 263)
|| (region() == 0 && interlace() == true && status.vcounter == 262 && status.field == 1)
|| (region() == 1 && interlace() == false && status.vcounter == 312)
|| (region() == 1 && interlace() == true && status.vcounter == 313)
|| (region() == 1 && interlace() == true && status.vcounter == 312 && status.field == 1)
) {
status.vcounter = 0;
status.field = !status.field;
}
scanline();
}
history.index = (history.index + 1) & 2047;
history.field [history.index] = status.field;
history.vcounter[history.index] = status.vcounter;
history.hcounter[history.index] = status.hcounter;
}
alwaysinline void tock(unsigned clocks) {
history.ppudiff -= clocks;
}
//timing information relative to S-CPU
alwaysinline bool field () const { return status.field; }
alwaysinline uint16 vcounter() const { return status.vcounter; }
alwaysinline uint16 hcounter() const { return status.hcounter; }
uint16 hdot() const;
uint16 lineclocks() const;
//timing history information relative to S-CPU
alwaysinline bool field (unsigned offset) const { return history.field [(history.index - (offset >> 1)) & 2047]; }
alwaysinline uint16 vcounter(unsigned offset) const { return history.vcounter[(history.index - (offset >> 1)) & 2047]; }
alwaysinline uint16 hcounter(unsigned offset) const { return history.hcounter[(history.index - (offset >> 1)) & 2047]; }
//timing information relative to S-PPU
alwaysinline bool ifield() const { return history.field [(history.index - (history.ppudiff >> 1)) & 2047]; }
alwaysinline uint16 ivcounter() const { return history.vcounter[(history.index - (history.ppudiff >> 1)) & 2047]; }
alwaysinline uint16 ihcounter() const { return history.hcounter[(history.index - (history.ppudiff >> 1)) & 2047]; }
uint16 ilineclocks() const;
void reset();
private:
bool region() const;
bool interlace() const;
void scanline();
struct {
bool field;
uint16 vcounter;
uint16 hcounter;
} status;
struct {
bool field[2048];
uint16 vcounter[2048];
uint16 hcounter[2048];
unsigned index;
signed ppudiff;
} history;
};