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Added 32-bit ARPL and 32-bit direct far call

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1218
This commit is contained in:
Sjoerd van der Berg 2003-09-01 20:59:20 +00:00
parent eba92fc10a
commit 4c2a65992a
1 changed files with 26 additions and 0 deletions
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26
src/cpu/core_normal/prefix_66.h
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@ -150,6 +150,21 @@
reg_edi=Pop_32();reg_esi=Pop_32();reg_ebp=Pop_32();Pop_32();//Don't save ESP
reg_ebx=Pop_32();reg_edx=Pop_32();reg_ecx=Pop_32();reg_eax=Pop_32();
break;
CASE_D(0x63) /* ARPL Ed,Rd */
{
FillFlags();
GetRMrw;
if (rm >= 0xc0 ) {
GetEArd;Bitu new_sel=(Bit16u)*eard;
CPU_ARPL(new_sel,*rmrw);
*eard=(Bit32u)new_sel;
} else {
GetEAa;Bitu new_sel=LoadMw(eaa);
CPU_ARPL(new_sel,*rmrw);
SaveMd(eaa,(Bit32u)new_sel);
}
}
break;
CASE_D(0x68) /* PUSH Id */
Push_32(Fetchd());break;
CASE_D(0x69) /* IMUL Gd,Ed,Id */
@ -312,6 +327,17 @@
if (reg_eax & 0x80000000) reg_edx=0xffffffff;
else reg_edx=0;
break;
CASE_D(0x9a) /* CALL FAR Ad */
{
Bit32u newip=Fetchd();Bit16u newcs=Fetchw();
SAVEIP;
if (CPU_CALL(true,newcs,newip)) {
LOADIP;
} else {
FillFlags();return CBRET_NONE;
}
break;
}
CASE_D(0x9c) /* PUSHFD */
FillFlags();
Push_32(flags.word);