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Pico version reg, irq3 handling changed

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@443 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-05-07 21:37:51 +00:00
parent d49b10c2f2
commit 1e6b5e39f4
6 changed files with 67 additions and 34 deletions
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35
Pico/Pico/Pico.c
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@ -9,23 +9,32 @@ static int prev_line_cnt_irq3 = 0, prev_line_cnt_irq5 = 0;
static void PicoLineHookPico(int count)
{
PicoPicohw.line_counter += count;
if ((PicoPicohw.line_counter & 0xf) == 0 || count > 10)
{
if (PicoPicohw.fifo_bytes > 0)
PicoPicohw.fifo_bytes--;
}
#if 0
if (PicoPicohw.line_counter - prev_line_cnt_irq3 > 200) {
#if 1
if ((PicoPicohw.r12 & 0x4003) && PicoPicohw.line_counter - prev_line_cnt_irq3 > 200) {
prev_line_cnt_irq3 = PicoPicohw.line_counter;
// just a guess/hack, allows 101 Dalmantians to boot
elprintf(EL_ANOMALY, "irq3");
SekInterrupt(3);
return;
}
if (PicoPicohw.fifo_bytes == 16) {
prev_line_cnt_irq3 = PicoPicohw.line_counter;
elprintf(EL_ANOMALY, "irq3, fb=%i", PicoPicohw.fifo_bytes);
SekInterrupt(3);
PicoPicohw.fifo_bytes--;
return;
}
#endif
if ((PicoPicohw.line_counter & 3) == 0 || count > 10)
{
if (PicoPicohw.fifo_bytes > 0)
PicoPicohw.fifo_bytes--;
}
#if 0
if (PicoPicohw.line_counter - prev_line_cnt_irq5 > 512) {
prev_line_cnt_irq5 = PicoPicohw.line_counter;
@ -46,6 +55,16 @@ PICO_INTERNAL int PicoInitPico(void)
PicoPicohw.pen_pos[1] = 0x200 + 252/2;
prev_line_cnt_irq3 = 0, prev_line_cnt_irq5 = 0;
// map version register
PicoDetectRegion();
elprintf(EL_STATUS, "a %x", Pico.m.hardware);
switch (Pico.m.hardware >> 6) {
case 0: PicoPicohw.r1 = 0x00; break;
case 1: PicoPicohw.r1 = 0x00; break;
case 2: PicoPicohw.r1 = 0x40; break;
case 3: PicoPicohw.r1 = 0x20; break;
}
return 0;
}