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cheats: fix Ex, DB, and Fx codes

This commit is contained in:
zeromus 2016-12-03 23:44:52 -06:00
parent 444b1f67db
commit 5f1e50db69
1 changed files with 12 additions and 8 deletions
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20
desmume/src/cheatSystem.cpp
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@ -86,7 +86,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
//TODO: "Code Hacks" from kodewerx (seems frail, but we should at least detect them and print some diagnostics
//TODO: v154 special stuff
bool v154 = false; //not supported yet
bool v154 = true; //on advice of power users, v154 is so old, we can assume all cheats use it
struct {
//LSB is
@ -245,7 +245,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
z = lo>>16;
if(v154) if(x == 0) x = st.offset;
operand = _MMU_read16<ARMCPU_ARM7,MMU_AT_DEBUG>(x);
if(y > ( (~z) & operand) ) st.status &= ~1;
if(y > ( (~z) & operand) ) st.status &= ~1;
break;
case 0x08:
@ -258,7 +258,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
z = lo>>16;
if(v154) if(x == 0) x = st.offset;
operand = _MMU_read16<ARMCPU_ARM7,MMU_AT_DEBUG>(x);
if(y < ( (~z) & operand) ) st.status &= ~1;
if(y < ( (~z) & operand) ) st.status &= ~1;
break;
case 0x09:
@ -271,7 +271,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
z = lo>>16;
if(v154) if(x == 0) x = st.offset;
operand = _MMU_read16<ARMCPU_ARM7,MMU_AT_DEBUG>(x);
if(y == ( (~z) & operand) ) st.status &= ~1;
if(y == ( (~z) & operand) ) st.status &= ~1;
break;
case 0x0A:
@ -284,7 +284,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
z = lo>>16;
if(v154) if(x == 0) x = st.offset;
operand = _MMU_read16<ARMCPU_ARM7,MMU_AT_DEBUG>(x);
if(y != ( (~z) & operand) ) st.status &= ~1;
if(y != ( (~z) & operand) ) st.status &= ~1;
break;
case 0x0B:
@ -492,6 +492,7 @@ void CHEATS::ARparser(CHEATS_LIST& list)
{
u32 j=0,t=0,b=0;
if(y>0) i++; //skip over the current code
while(y>=4)
{
u32 tmp = list.code[i][t];
@ -520,19 +521,22 @@ void CHEATS::ARparser(CHEATS_LIST& list)
//attempting to emulate logic the way they may have implemented it, just in case
x = hi & 0x0FFFFFFF;
y = lo;
addr = x;
addr = st.offset;
operand = x; //mis-use of this variable to store dst
while(y>=4)
{
u32 tmp = _MMU_read32<ARMCPU_ARM7,MMU_AT_DEBUG>(addr);
_MMU_write32<ARMCPU_ARM7,MMU_AT_DEBUG>(y,tmp);
_MMU_write32<ARMCPU_ARM7,MMU_AT_DEBUG>(operand,tmp);
addr += 4;
operand += 4;
y -= 4;
}
while(y>0)
{
u8 tmp = _MMU_read08<ARMCPU_ARM7,MMU_AT_DEBUG>(addr);
_MMU_write08<ARMCPU_ARM7,MMU_AT_DEBUG>(y,tmp);
_MMU_write08<ARMCPU_ARM7,MMU_AT_DEBUG>(operand,tmp);
addr += 1;
operand += 1;
y -= 1;
}
break;