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work on 'vblank on line start' problem, var changes, mask defines

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@408 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-04-03 20:17:29 +00:00
parent 95dc5c5e5e
commit 602133e1c6
27 changed files with 359 additions and 945 deletions
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12
Pico/MemoryCmn.c
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@ -18,7 +18,8 @@ u8 z80Read8(u32 a)
a&=0x1fff;
if(!(PicoOpt&4)) {
if (!(PicoOpt&POPT_EN_Z80))
{
// Z80 disabled, do some faking
static u8 zerosent = 0;
if(a == Pico.m.z80_lastaddr) { // probably polling something
@ -120,7 +121,7 @@ u32 OtherRead16(u32 a, int realsize)
if ((a&0xff0000)==0xa00000) {
if ((a&0x4000)==0x0000) { d=z80Read8(a); d|=d<<8; goto end; } // Z80 ram (not byteswaped)
if ((a&0x6000)==0x4000) { // 0x4000-0x5fff, Fudge if disabled
if(PicoOpt&1) d=YM2612Read();
if(PicoOpt&POPT_EN_FM) d=YM2612Read();
else d=Pico.m.rotate++&3;
elprintf(EL_YM2612R, "read ym2612: %02x", d);
goto end;
@ -139,12 +140,13 @@ static void IoWrite8(u32 a, u32 d)
{
a=(a>>1)&0xf;
// 6 button gamepad: if TH went from 0 to 1, gamepad changes state
if(PicoOpt&0x20) {
if(a==1) {
if(PicoOpt&POPT_6BTN_PAD)
{
if (a==1) {
Pico.m.padDelay[0] = 0;
if(!(Pico.ioports[1]&0x40) && (d&0x40)) Pico.m.padTHPhase[0]++;
}
else if(a==2) {
else if (a==2) {
Pico.m.padDelay[1] = 0;
if(!(Pico.ioports[2]&0x40) && (d&0x40)) Pico.m.padTHPhase[1]++;
}