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apple2gs: Don't trigger on $C071-$C07F. Fixes Rastan and other joystick issues. (GitHub #9530)(MT#08240) [Kelvin Sherlock, R. Belmont]

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This commit is contained in:
arbee 2022-04-13 19:14:18 -04:00
parent 4e484194b3
commit 23904ffeeb
1 changed files with 6 additions and 4 deletions
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10
src/mame/drivers/apple2gs.cpp
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@ -2619,9 +2619,7 @@ u8 apple2gs_state::c000_r(offs_t offset)
(m_rombank ? 0x02 : 0x00) |
(m_intcxrom ? 0x01 : 0x00);
case 0x70: case 0x71: case 0x72: case 0x73: case 0x74: case 0x75: case 0x76: case 0x77:
case 0x78: case 0x79: case 0x7a: case 0x7b: case 0x7c: case 0x7d: case 0x7e: case 0x7f:
// todo: does reading these on the IIgs also trigger the joysticks?
case 0x70: // PTRIG - triggers paddles on read or write
if (!machine().side_effects_disabled())
{
// Zip paddle slowdown (does ZipGS also use the old Zip flag?)
@ -2653,7 +2651,11 @@ u8 apple2gs_state::c000_r(offs_t offset)
}
return m_rom[offset + 0x3c000];
break;
// The ROM IRQ vectors point here
case 0x71: case 0x72: case 0x73: case 0x74: case 0x75: case 0x76: case 0x77:
case 0x78: case 0x79: case 0x7a: case 0x7b: case 0x7c: case 0x7d: case 0x7e: case 0x7f:
return m_rom[offset + 0x3c000];
default:
do_io(offset);