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fix BRSET mask

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This commit is contained in:
Michaël Banaan Ananas 2012-07-16 00:32:46 +00:00
parent 6f6b6ca214
commit be3848eb2a
1 changed files with 5 additions and 7 deletions
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12
src/emu/cpu/mc68hc11/hc11ops.c
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@ -780,8 +780,7 @@ static void HC11OP(bclr_indx)(hc11_state *cpustate)
{
UINT8 offset = FETCH(cpustate);
UINT8 mask = FETCH(cpustate);
UINT8 r = READ8(cpustate, cpustate->ix + offset);
r = r & ~mask;
UINT8 r = READ8(cpustate, cpustate->ix + offset) & ~mask;
WRITE8(cpustate, cpustate->ix + offset, r);
CLEAR_NZV(cpustate);
SET_N8(r);
@ -901,7 +900,7 @@ static void HC11OP(brclr_dir)(hc11_state *cpustate)
INT8 rel = FETCH(cpustate);
UINT8 i = READ8(cpustate, d);
if(!(i & mask))
if ((i & mask) == 0)
{
SET_PC(cpustate, cpustate->ppc + rel + 4);
}
@ -918,7 +917,7 @@ static void HC11OP(brclr_indx)(hc11_state *cpustate)
INT8 rel = FETCH(cpustate);
UINT8 i = READ8(cpustate, cpustate->ix + offset);
if(!(i & mask))
if ((i & mask) == 0)
{
SET_PC(cpustate, cpustate->ppc + rel + 4);
}
@ -951,7 +950,7 @@ static void HC11OP(brset_indx)(hc11_state *cpustate)
INT8 rel = FETCH(cpustate);
UINT8 i = READ8(cpustate, cpustate->ix + offset);
if(i & mask)
if ((~i & mask) == 0)
{
SET_PC(cpustate, cpustate->ppc + rel + 4);
}
@ -973,8 +972,7 @@ static void HC11OP(bset_indx)(hc11_state *cpustate)
{
UINT8 offset = FETCH(cpustate);
UINT8 mask = FETCH(cpustate);
UINT8 r = READ8(cpustate, cpustate->ix + offset);
r = (r & ~mask) | mask;
UINT8 r = READ8(cpustate, cpustate->ix + offset) | mask;
WRITE8(cpustate, cpustate->ix + offset, r);
CLEAR_NZV(cpustate);
SET_N8(r);