Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Trigger TS fault correctly on IRET with NT flag set when back link selector invalid. Fixes NTVDM issues with Windows 2000.

Browse source
This commit is contained in:
SarahW 2017-02-04 21:39:28 +00:00
commit 31a97096ec
1 changed files with 4 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/x86seg.c
View file

@ -2011,20 +2011,16 @@ void pmodeiret(int is32)
addr=seg&~7; addr=seg&~7;
if (seg&4) if (seg&4)
{ {
if (addr>=ldt.limit) pclog("TS LDT %04X %04X IRET\n",seg,gdt.limit);
{ x86ts(NULL,seg&~3);
pclog("TS Bigger than LDT limit %04X %04X IRET\n",seg,gdt.limit); return;
x86gpf(NULL,seg&~3);
return;
}
addr+=ldt.base;
} }
else else
{ {
if (addr>=gdt.limit) if (addr>=gdt.limit)
{ {
pclog("TS Bigger than GDT limit %04X %04X IRET\n",seg,gdt.limit); pclog("TS Bigger than GDT limit %04X %04X IRET\n",seg,gdt.limit);
x86gpf(NULL,seg&~3); x86ts(NULL,seg&~3);
return; return;
} }
addr+=gdt.base; addr+=gdt.base;