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More 80386 support (PUSH/POP FS/GS)

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This commit is contained in:
Jeff Parsons 2015-03-27 00:14:46 -07:00 • committed by jeffpar
commit e4b5f2b020
4 changed files with 117 additions and 32 deletions
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10
modules/pcjs/lib/debugger.js
View file

@ -879,7 +879,11 @@ if (DEBUGGER) {
0x05: [Debugger.INS.LOADALL,Debugger.TYPE_80286],
0x06: [Debugger.INS.CLTS, Debugger.TYPE_80286],
0x20: [Debugger.INS.MOV, Debugger.TYPE_REG | Debugger.TYPE_DWORD | Debugger.TYPE_OUT | Debugger.TYPE_80386, Debugger.TYPE_CTLREG | Debugger.TYPE_DWORD | Debugger.TYPE_IN],
0x22: [Debugger.INS.MOV, Debugger.TYPE_CTLREG | Debugger.TYPE_DWORD | Debugger.TYPE_OUT | Debugger.TYPE_80386, Debugger.TYPE_REG | Debugger.TYPE_DWORD | Debugger.TYPE_IN]
0x22: [Debugger.INS.MOV, Debugger.TYPE_CTLREG | Debugger.TYPE_DWORD | Debugger.TYPE_OUT | Debugger.TYPE_80386, Debugger.TYPE_REG | Debugger.TYPE_DWORD | Debugger.TYPE_IN],
0xA0: [Debugger.INS.PUSH, Debugger.TYPE_FS | Debugger.TYPE_IN | Debugger.TYPE_80386],
0xA1: [Debugger.INS.POP, Debugger.TYPE_FS | Debugger.TYPE_OUT | Debugger.TYPE_80386],
0xA8: [Debugger.INS.PUSH, Debugger.TYPE_GS | Debugger.TYPE_IN | Debugger.TYPE_80386],
0xA9: [Debugger.INS.POP, Debugger.TYPE_GS | Debugger.TYPE_OUT | Debugger.TYPE_80386]
};
Debugger.aaGrpDescs = [
@ -4062,6 +4066,10 @@ if (DEBUGGER) {
return;
for (var i = 2; i < asArgs.length; i++) {
var b = str.parseInt(asArgs[i], 16);
if (b === undefined) {
this.println("unrecognized value: " + str.toHexByte(b));
break;
}
this.println("setting " + this.hexAddr(aAddr) + " to " + str.toHexByte(b));
this.setByte(aAddr, b, 1);
}

56
modules/pcjs/lib/x86op0f.js
View file

@ -311,6 +311,58 @@ X86.opMOVcrr = function MOVcrr()
}
};
/**
* opPUSHFS()
*
* op=0x0F,0xA0 (PUSH FS)
*
* @this {X86CPU}
*/
X86.opPUSHFS = function PUSHFS()
{
this.pushWord(this.segFS.sel);
this.nStepCycles -= this.CYCLES.nOpCyclesPushSeg;
};
/**
* opPOPFS()
*
* op=0x0F,0xA1 (POP FS)
*
* @this {X86CPU}
*/
X86.opPOPFS = function POPFS()
{
this.setFS(this.popWord());
this.nStepCycles -= this.CYCLES.nOpCyclesPopReg;
};
/**
* opPUSHGS()
*
* op=0x0F,0xA8 (PUSH GS)
*
* @this {X86CPU}
*/
X86.opPUSHGS = function PUSHGS()
{
this.pushWord(this.segGS.sel);
this.nStepCycles -= this.CYCLES.nOpCyclesPushSeg;
};
/**
* opPOPGS()
*
* op=0x0F,0xA9 (POP GS)
*
* @this {X86CPU}
*/
X86.opPOPGS = function POPGS()
{
this.setGS(this.popWord());
this.nStepCycles -= this.CYCLES.nOpCyclesPopReg;
};
X86.aOps0F = new Array(256);
X86.aOps0F[0x00] = X86.opGrp6;
@ -334,6 +386,10 @@ if (I386) {
X86.aOps0F386 = [];
X86.aOps0F386[0x20] = X86.opMOVrcr;
X86.aOps0F386[0x22] = X86.opMOVcrr;
X86.aOps0F386[0xA0] = X86.opPUSHFS;
X86.aOps0F386[0xA1] = X86.opPOPFS;
X86.aOps0F386[0xA8] = X86.opPUSHGS;
X86.aOps0F386[0xA9] = X86.opPOPGS;
}
/*