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Minor memory fixes

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This commit is contained in:
Tamas Rudnai
2024-01-06 06:19:56 -08:00
parent 647a3fed66
commit 7be5b4f257
4 changed files with 15 additions and 1 deletions
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BIN
A2Mac.xcodeproj/project.xcworkspace/xcuserdata/trudnai.xcuserdatad/UserInterfaceState.xcuserstate generated
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8
A2Mac.xcodeproj/project.xcworkspace/xcuserdata/trudnai.xcuserdatad/xcdebugger/Expressions.xcexplist
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@@ -114,6 +114,14 @@
</PersistentString> </PersistentString>
</PersistentStrings> </PersistentStrings>
</ContextState> </ContextState>
<ContextState
contextName = "_memwrite8_low:mmio.c">
<PersistentStrings>
<PersistentString
value = "m6502.PC">
</PersistentString>
</PersistentStrings>
</ContextState>
<ContextState <ContextState
contextName = "_src_zp_X_dbg:mmio.c"> contextName = "_src_zp_X_dbg:mmio.c">
<PersistentStrings> <PersistentStrings>

2
src/cpu/jit/instructions/6502_instr_misc.h
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@@ -47,7 +47,7 @@ INSTR int BRK(void) {
m6502.I = 1; m6502.I = 1;
m6502.D = 0; m6502.D = 0;
m6502.PC = memread16_high(IRQ_VECTOR); m6502.PC = memread16_high(IRQ_VECTOR);
// m6502.interrupt = BREAK; m6502.interrupt = BREAK;
#endif #endif
return 7; return 7;
} }

6
src/dev/mem/mmio.c
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@@ -730,6 +730,7 @@ INLINE void ioWrite( uint16_t addr, uint8_t val ) {
switch ( (uint8_t)addr ) { switch ( (uint8_t)addr ) {
case (uint8_t)io_KBDSTRB: case (uint8_t)io_KBDSTRB:
kbdStrobe(); kbdStrobe();
newMEMcfg.is_80STORE = 0;
break; break;
case (uint8_t)io_TAPEOUT: case (uint8_t)io_TAPEOUT:
@@ -1101,6 +1102,11 @@ INLINE uint8_t _memread_dis( uint16_t addr ) {
**/ **/
INLINE void _memwrite8_low( uint16_t addr, uint8_t data ) { INLINE void _memwrite8_low( uint16_t addr, uint8_t data ) {
if ((addr >= 0x400) && (addr < 0x800)) {
if ((data == 0x00) || (data == 0xFF)) {
m6502.interrupt = BREAK;
}
}
WRLOMEM[addr] = data; WRLOMEM[addr] = data;
} }
INLINE void _memwrite8_bank( uint16_t addr, uint8_t data ) { INLINE void _memwrite8_bank( uint16_t addr, uint8_t data ) {