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IOP: TOOL config registers

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This commit is contained in:
Ziemas
2026-03-08 14:46:09 -04:00
committed by Ty
parent e47b32b2e6
commit c1d46b1866
1 changed files with 17 additions and 8 deletions
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pcsx2/ps2/Iop/IopHwRead.cpp
+17 -8
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@@ -94,19 +94,28 @@ mem8_t iopHwRead8_Page1( u32 addr )
//////////////////////////////////////////////////////////////////////////////////////////
//
mem8_t iopHwRead8_Page3( u32 addr )
mem8_t iopHwRead8_Page3(u32 addr)
{
// all addresses are assumed to be prefixed with 0x1f803xxx:
pxAssume( (addr >> 12) == 0x1f803 );
pxAssume((addr >> 12) == 0x1f803);
const u32 masked_addr = addr & 0x0fff;
mem8_t ret;
if( addr == 0x1f803100 ) // PS/EE/IOP conf related
//ret = 0x10; // Dram 2M
ret = 0xFF; //all high bus is the corect default state for CEX PS2!
else
ret = psxHu8( addr );
switch (masked_addr)
{
case 0x100: // TOOL config switches
ret = 0;
break;
case 0x204: // TOOL board id
ret = 0x7c;
break;
default:
ret = psxHu8(addr);
break;
}
IopHwTraceLog<mem8_t>( addr, ret, true );
IopHwTraceLog<mem8_t>(addr, ret, true);
return ret;
}