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Improved the SCO Xenix fix, fixes OS/2 booting, fixes #4762.

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This commit is contained in:
OBattler
2024-08-29 01:26:32 +02:00
parent 447374bd65
commit f19a5447be
6 changed files with 37 additions and 37 deletions
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18
src/cpu/x86_ops_mov_ctrl.h
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@@ -189,16 +189,15 @@ opMOV_CRx_r_a16(uint32_t fetchdat)
else if ((cpu_state.regs[cpu_rm].l ^ cr0) & 0x80000000) {
if (is_p6 || cpu_use_dynarec)
flushmmucache();
else
else {
flushmmucache_nopc();
cpu_flush_pending = 1;
}
}
/* Make sure CPL = 0 when switching from real mode to protected mode. */
if ((cpu_state.regs[cpu_rm].l & 0x01) && !(cr0 & 0x01))
cpu_state.seg_cs.access &= 0x9f;
if (!is_p6 && !cpu_use_dynarec && ((cpu_state.regs[cpu_rm].l ^ cr0) & 0x80000000))
cr0 = (cr0 & 0x80000000) | (cpu_state.regs[cpu_rm].l & 0x7fffffff);
else
cr0 = cpu_state.regs[cpu_rm].l;
cr0 = cpu_state.regs[cpu_rm].l;
if (cpu_16bitbus)
cr0 |= 0x10;
if (!(cr0 & 0x80000000))
@@ -255,16 +254,15 @@ opMOV_CRx_r_a32(uint32_t fetchdat)
else if ((cpu_state.regs[cpu_rm].l ^ cr0) & 0x80000000) {
if (is_p6 || cpu_use_dynarec)
flushmmucache();
else
else {
flushmmucache_nopc();
cpu_flush_pending = 1;
}
}
/* Make sure CPL = 0 when switching from real mode to protected mode. */
if ((cpu_state.regs[cpu_rm].l & 0x01) && !(cr0 & 0x01))
cpu_state.seg_cs.access &= 0x9f;
if (!is_p6 && !cpu_use_dynarec && ((cpu_state.regs[cpu_rm].l ^ cr0) & 0x80000000))
cr0 = (cr0 & 0x80000000) | (cpu_state.regs[cpu_rm].l & 0x7fffffff);
else
cr0 = cpu_state.regs[cpu_rm].l;
cr0 = cpu_state.regs[cpu_rm].l;
if (cpu_16bitbus)
cr0 |= 0x10;
if (!(cr0 & 0x80000000))