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Some IBM PS/2 Model 55SX memory fixes.

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This commit is contained in:
OBattler
2021-11-20 10:32:02 +01:00
parent eff4fc9335
commit 01567e976f
1 changed files with 4 additions and 0 deletions
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4
src/machine/m_ps2_mca.c
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@@ -483,11 +483,13 @@ static void model_55sx_write(uint16_t port, uint8_t val)
if (shadowbios)
{
mem_set_mem_state(0xe0000, 0x20000, MEM_READ_INTERNAL | MEM_WRITE_DISABLED);
mem_set_mem_state((mem_size+256) * 1024, 128 * 1024, MEM_READ_EXTANY | MEM_WRITE_EXTANY);
mem_mapping_disable(&ps2.shadow_mapping);
}
else
{
mem_set_mem_state(0xe0000, 0x20000, MEM_READ_EXTANY | MEM_WRITE_INTERNAL);
mem_set_mem_state((mem_size+256) * 1024, 128 * 1024, MEM_READ_INTERNAL | MEM_WRITE_INTERNAL);
mem_mapping_enable(&ps2.shadow_mapping);
}
@@ -495,6 +497,8 @@ static void model_55sx_write(uint16_t port, uint8_t val)
mem_set_mem_state(mem_size * 1024, 256 * 1024, MEM_READ_INTERNAL | MEM_WRITE_INTERNAL);
else
mem_set_mem_state(mem_size * 1024, 256 * 1024, MEM_READ_EXTANY | MEM_WRITE_EXTANY);
flushmmucache_nopc();
break;
case 0x106:
ps2.subaddr_lo = val;