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i386 CPUs don't have the WP bit in CR0. Fixes IBM AIX 1.3

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qeeg
2020-11-30 02:27:36 -06:00
committed by David Hrdlička
parent a5ae4cfba5
commit f7dcd358f0
1 changed files with 2 additions and 2 deletions
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4
src/mem/mem.c
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@@ -296,7 +296,7 @@ mmutranslatereal_normal(uint32_t addr, int rw)
if ((temp & 0x80) && (cr4 & CR4_PSE)) {
/*4MB page*/
if (((CPL == 3) && !(temp & 4) && !cpl_override) || (rw && !(temp & 2) && (((CPL == 3) && !cpl_override) || (cr0 & WP_FLAG)))) {
if (((CPL == 3) && !(temp & 4) && !cpl_override) || (rw && !(temp & 2) && (((CPL == 3) && !cpl_override) || (!is386 && (cr0 & WP_FLAG))))) {
cr2 = addr;
temp &= 1;
if (CPL == 3)
@@ -317,7 +317,7 @@ mmutranslatereal_normal(uint32_t addr, int rw)
temp = rammap((temp & ~0xfff) + ((addr >> 10) & 0xffc));
temp3 = temp & temp2;
if (!(temp&1) || ((CPL == 3) && !(temp3 & 4) && !cpl_override) || (rw && !(temp3 & 2) && (((CPL == 3) && !cpl_override) || (cr0 & WP_FLAG)))) {
if (!(temp&1) || ((CPL == 3) && !(temp3 & 4) && !cpl_override) || (rw && !(temp3 & 2) && (((CPL == 3) && !cpl_override) || (!is386 && (cr0 & WP_FLAG))))) {
cr2 = addr;
temp &= 1;
if (CPL == 3) temp |= 4;