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mc68hc11: Fix disassembly and execution of BRCLR/BRSET (IND, Y)

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This commit is contained in:
AJR 2019-12-04 17:17:49 -05:00
parent 5f95c10b36
commit 12684d33ee
2 changed files with 5 additions and 5 deletions
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2
src/devices/cpu/mc68hc11/hc11dasm.cpp
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@ -1227,7 +1227,7 @@ offs_t hc11_disassembler::disassemble(std::ostream &stream, offs_t pc, const dat
imm8 = opcodes.r8(cpc++);
mask = opcodes.r8(cpc++);
rel8 = opcodes.r8(cpc++);
util::stream_format(stream, "%s (Y+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+2+rel8);
util::stream_format(stream, "%s (Y+0x%02X), 0x%02X, [0x%04X]", op_table->mnemonic, imm8, mask, pc+5+rel8);
break;
case PAGE2:

8
src/devices/cpu/mc68hc11/hc11ops.hxx
View File

@ -1191,7 +1191,7 @@ void HC11OP(brclr_indx)()
CYCLES(7);
}
/* BRCLR INDX 0x18, 0x1F */
/* BRCLR INDY 0x18, 0x1F */
void HC11OP(brclr_indy)()
{
uint8_t offset = FETCH();
@ -1202,7 +1202,7 @@ void HC11OP(brclr_indy)()
if ((i & mask) == 0)
{
SET_PC(m_ppc + rel + 4);
SET_PC(m_ppc + rel + 5);
}
CYCLES(8);
@ -1216,7 +1216,7 @@ void HC11OP(brset_dir)()
int8_t rel = FETCH();
uint8_t i = READ8(d);
if(i & mask)
if ((~i & mask) == 0)
{
SET_PC(m_ppc + rel + 4);
}
@ -1253,7 +1253,7 @@ void HC11OP(brset_indy)()
if ((~i & mask) == 0)
{
SET_PC(m_ppc + rel + 4);
SET_PC(m_ppc + rel + 5);
}
CYCLES(8);