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Implemented (but have not yet tested) 286 LOADALL

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This commit is contained in:
Jeff Parsons 2014-10-31 13:40:19 -07:00 • committed by jeffpar
commit 5e6604b760
9 changed files with 335 additions and 173 deletions
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223
my_modules/pcjs-client/lib/debugger.js
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@ -2828,7 +2828,7 @@ if (DEBUGGER) {
this.getFlagStr("S") + this.getFlagStr("Z") + this.getFlagStr("A") + this.getFlagStr("P") + this.getFlagStr("C");
if (fProt) {
s += " MS=" + str.toHexWord(this.cpu.regMSW) + '\n' +
this.getDTRStr("LD", this.cpu.segLDT.sel, this.cpu.segLDT.base, this.cpu.segLDT.limit) + ' ' +
this.getDTRStr("LD", this.cpu.segLDT.sel, this.cpu.segLDT.base, this.cpu.segLDT.base + this.cpu.segLDT.limit) + ' ' +
this.getDTRStr("GD", null, this.cpu.addrGDT, this.cpu.addrGDTLimit) + ' ' +
this.getDTRStr("ID", null, this.cpu.addrIDT, this.cpu.addrIDTLimit) + " TR=" + str.toHexWord(this.cpu.segTSS.sel) +
" A20=" + (this.bus.getA20()? "ON" : "OFF");
@ -2948,7 +2948,7 @@ if (DEBUGGER) {
break;
/*
* I used to alias "PC" to "IP", until I discovered that early (perhaps even ALL) versions of DEBUG.COM
* treat "PC" as an alias for the 16-bit flags register. TODO: Add support for "PC" as the flags register.
* treat "PC" as an alias for the 16-bit flags register. So for purposes of parseValue(), "PC" has been removed.
*/
case "IP":
value = this.cpu.regIP;
@ -4082,105 +4082,130 @@ if (DEBUGGER) {
}
var w = parseInt(sValue, 16);
if (!isNaN(w)) {
switch (sReg.toUpperCase()) {
case "AL":
this.cpu.regAX = (this.cpu.regAX & 0xff00) | (w & 0xff);
break;
case "AH":
this.cpu.regAX = (this.cpu.regAX & 0x00ff) | ((w << 8) & 0xff);
break;
case "AX":
this.cpu.regAX = (w & 0xffff);
break;
case "BL":
this.cpu.regBX = (this.cpu.regBX & 0xff00) | (w & 0xff);
break;
case "BH":
this.cpu.regBX = (this.cpu.regBX & 0x00ff) | ((w << 8) & 0xff);
break;
case "BX":
this.cpu.regBX = (w & 0xffff);
break;
case "CL":
this.cpu.regCX = (this.cpu.regCX & 0xff00) | (w & 0xff);
break;
case "CH":
this.cpu.regCX = (this.cpu.regCX & 0x00ff) | ((w << 8) & 0xff);
break;
case "CX":
this.cpu.regCX = (w & 0xffff);
break;
case "DL":
this.cpu.regDX = (this.cpu.regDX & 0xff00) | (w & 0xff);
break;
case "DH":
this.cpu.regDX = (this.cpu.regDX & 0x00ff) | ((w << 8) & 0xff);
break;
case "DX":
this.cpu.regDX = (w & 0xffff);
break;
case "SP":
this.cpu.regSP = (w & 0xffff);
break;
case "BP":
this.cpu.regBP = (w & 0xffff);
break;
case "SI":
this.cpu.regSI = (w & 0xffff);
break;
case "DI":
this.cpu.regDI = (w & 0xffff);
break;
case "DS":
this.cpu.setDS(w);
break;
case "ES":
this.cpu.setES(w);
break;
case "SS":
this.cpu.setSS(w);
break;
case "CS":
fIns = true;
this.cpu.setCS(w);
this.aAddrNextCode = this.newAddr(this.cpu.regIP, this.cpu.segCS.sel);
break;
/*
* I used to alias "PC" to "IP", until I discovered that early (perhaps ALL) versions of
* DEBUG.COM treat "PC" as an alias for the 16-bit flags register. TODO: Add support for "PC".
*/
case "IP":
fIns = true;
this.cpu.setIP(w);
this.aAddrNextCode = this.newAddr(this.cpu.regIP, this.cpu.segCS.sel);
break;
case "C":
if (w) this.cpu.setCF(); else this.cpu.clearCF();
break;
case "P":
if (w) this.cpu.setPF(); else this.cpu.clearPF();
break;
case "A":
if (w) this.cpu.setAF(); else this.cpu.clearAF();
break;
case "Z":
if (w) this.cpu.setZF(); else this.cpu.clearZF();
break;
case "S":
if (w) this.cpu.setSF(); else this.cpu.clearSF();
break;
case "I":
if (w) this.cpu.setIF(); else this.cpu.clearIF();
break;
case "D":
if (w) this.cpu.setDF(); else this.cpu.clearDF();
break;
case "V":
if (w) this.cpu.setOF(); else this.cpu.clearOF();
break;
default:
sReg = sReg.toUpperCase();
switch (sReg) {
case "AL":
this.cpu.regAX = (this.cpu.regAX & 0xff00) | (w & 0xff);
break;
case "AH":
this.cpu.regAX = (this.cpu.regAX & 0x00ff) | ((w << 8) & 0xff);
break;
case "AX":
this.cpu.regAX = (w & 0xffff);
break;
case "BL":
this.cpu.regBX = (this.cpu.regBX & 0xff00) | (w & 0xff);
break;
case "BH":
this.cpu.regBX = (this.cpu.regBX & 0x00ff) | ((w << 8) & 0xff);
break;
case "BX":
this.cpu.regBX = (w & 0xffff);
break;
case "CL":
this.cpu.regCX = (this.cpu.regCX & 0xff00) | (w & 0xff);
break;
case "CH":
this.cpu.regCX = (this.cpu.regCX & 0x00ff) | ((w << 8) & 0xff);
break;
case "CX":
this.cpu.regCX = (w & 0xffff);
break;
case "DL":
this.cpu.regDX = (this.cpu.regDX & 0xff00) | (w & 0xff);
break;
case "DH":
this.cpu.regDX = (this.cpu.regDX & 0x00ff) | ((w << 8) & 0xff);
break;
case "DX":
this.cpu.regDX = (w & 0xffff);
break;
case "SP":
this.cpu.regSP = (w & 0xffff);
break;
case "BP":
this.cpu.regBP = (w & 0xffff);
break;
case "SI":
this.cpu.regSI = (w & 0xffff);
break;
case "DI":
this.cpu.regDI = (w & 0xffff);
break;
case "DS":
this.cpu.setDS(w);
break;
case "ES":
this.cpu.setES(w);
break;
case "SS":
this.cpu.setSS(w);
break;
case "CS":
fIns = true;
this.cpu.setCS(w);
this.aAddrNextCode = this.newAddr(this.cpu.regIP, this.cpu.segCS.sel);
break;
case "IP":
fIns = true;
this.cpu.setIP(w);
this.aAddrNextCode = this.newAddr(this.cpu.regIP, this.cpu.segCS.sel);
break;
/*
* I used to alias "PC" to "IP", until I discovered that early (perhaps ALL) versions of
* DEBUG.COM treat "PC" as an alias for the 16-bit flags register.
*/
case "PC":
this.cpu.setPS(w);
break;
case "C":
if (w) this.cpu.setCF(); else this.cpu.clearCF();
break;
case "P":
if (w) this.cpu.setPF(); else this.cpu.clearPF();
break;
case "A":
if (w) this.cpu.setAF(); else this.cpu.clearAF();
break;
case "Z":
if (w) this.cpu.setZF(); else this.cpu.clearZF();
break;
case "S":
if (w) this.cpu.setSF(); else this.cpu.clearSF();
break;
case "I":
if (w) this.cpu.setIF(); else this.cpu.clearIF();
break;
case "D":
if (w) this.cpu.setDF(); else this.cpu.clearDF();
break;
case "V":
if (w) this.cpu.setOF(); else this.cpu.clearOF();
break;
default:
var fUnknown = true;
if (this.cpu.model >= X86.MODEL_80286) {
fUnknown = false;
switch(sReg){
case "MS":
X86Help.opHelpLMSW(w);
break;
case "TR":
this.cpu.segTSS.load(w);
break;
/*
* TODO: Add support for GDTR (addr and limit), IDTR (addr and limit), and perhaps
* even the ability to edit descriptor information associated with each segment register.
*/
default:
fUnknown = true;
break;
}
}
if (fUnknown) {
this.println("unknown register: " + sReg);
return;
}
}
}
else {