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Bunch of SNES changes, nw

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This commit is contained in:
Angelo Salese 2012-09-03 01:17:50 +00:00
parent c3a5dcfeb0
commit edca1537c8
2 changed files with 7 additions and 0 deletions
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1
src/mame/machine/snes.c
View File

@ -804,6 +804,7 @@ WRITE8_HANDLER( snes_w_io )
cpu_set_reg(state->m_maincpu, _5A22_FASTROM, data & 1);
break;
case TIMEUP: // IRQ Flag is cleared on both read and write
device_set_input_line(state->m_maincpu, G65816_LINE_IRQ, CLEAR_LINE );
snes_ram[TIMEUP] = 0;
return;
/* Following are read-only */

6
src/mame/video/snes.c
View File

@ -1903,7 +1903,10 @@ READ8_MEMBER( snes_state::snes_vram_read )
if (h == 1362)
res = m_snes_vram[offset];
else
{
printf("%d %d VRAM read, CHECK!\n",h,v);
res = 0;
}
}
else
res = m_snes_vram[offset];
@ -1929,17 +1932,20 @@ WRITE8_MEMBER( snes_state::snes_vram_write )
m_snes_vram[offset] = snes_open_bus_r(&space, 0);
else
{
printf("%d %d VRAM write, CHECK!\n",h,v);
//no write
}
}
else if (v < snes_ppu.beam.last_visible_line)
{
printf("%d %d VRAM write, CHECK!\n",h,v);
//no write
}
else if (v == snes_ppu.beam.last_visible_line)
{
if (h <= 4)
{
printf("%d %d VRAM write, CHECK!\n",h,v);
//no write
}
else