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i386: don't handle op/addr size prefixes twice in rep

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This commit is contained in:
cracyc 2023-12-12 15:03:39 -06:00
parent 1d0f8adaf8
commit 1fdf6d10a7
1 changed files with 11 additions and 3 deletions
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14
src/devices/cpu/i386/i386ops.hxx
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@ -1144,11 +1144,19 @@ void i386_device::i386_repeat(int invert_flag)
m_segment_prefix=1;
break;
case 0x66:
m_operand_size ^= 1;
m_xmm_operand_size ^= 1;
if(!m_operand_prefix)
{
m_operand_size ^= 1;
m_xmm_operand_size ^= 1;
m_operand_prefix = 1;
}
break;
case 0x67:
m_address_size ^= 1;
if(!m_address_prefix)
{
m_address_size ^= 1;
m_address_prefix = 1;
}
break;
default:
prefix_flag=0;