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kazblox 2015-10-26 00:43:11 -04:00
parent 0095fa01e6
commit 1ab609cc10
1 changed files with 2 additions and 2 deletions
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4
src/devices/cpu/i86/i86.c
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@ -1149,7 +1149,7 @@ bool i8086_common_cpu_device::common_op(UINT8 op)
// 8086 'invalid opcodes', as documented at http://www.os2museum.com/wp/?p=2147 and tested on real hardware
// - 0x60 - 0x6f are aliases to 0x70 - 0x7f.
// - 0xc0, 0xc1, 0xc8, 0xc9 are also aliases where the CPU ignores BIT 1 (*).
// - 0xc0, 0xc1, 0xc8, 0xc9 are also aliases where the CPU ignores BIT 1 (*).
// - 0xf1 is an alias to 0xf0.
//
// Instructions are used in the boot sector for some versions of
@ -2018,7 +2018,7 @@ bool i8086_common_cpu_device::common_op(UINT8 op)
case 0xf0: // i_lock
case 0xf1: // 0xf1 is 0xf0; verified on custom hardware
case 0xf1: // 0xf1 is 0xf0; verified on real CPU
logerror("%s: %06x: Warning - BUSLOCK\n", tag(), pc());
m_lock = true;
m_no_interrupt = 1;