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Implemented INC/DEC opcodes

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This commit is contained in:
Jeff 2016-09-27 09:28:52 -07:00 • committed by Jeff Parsons
commit e322c5f912
3 changed files with 133 additions and 50 deletions
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60
modules/pdp11/lib/debugger.js
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@ -3140,38 +3140,44 @@ if (DEBUGGER) {
return;
}
var fValid = false;
var w = this.parseExpression(sValue);
if (w === undefined) return;
if (w !== undefined) {
fValid = true;
var sRegMatch = sReg.toUpperCase();
switch (sRegMatch) {
case "PC":
cpu.setPC(w);
this.dbgAddrNextCode = this.newAddr(cpu.getPC());
break;
case "NF":
if (w) cpu.setNF(); else cpu.clearNF();
break;
case "ZF":
if (w) cpu.setZF(); else cpu.clearZF();
break;
case "VF":
if (w) cpu.setVF(); else cpu.clearVF();
break;
case "CF":
if (w) cpu.setCF(); else cpu.clearCF();
break;
default:
this.println("unknown register: " + sReg);
return;
var sRegMatch = sReg.toUpperCase();
switch (sRegMatch) {
case "SP":
case "R6":
cpu.setSP(w);
break;
case "PC":
case "R7":
cpu.setPC(w);
this.dbgAddrNextCode = this.newAddr(cpu.getPC());
break;
case "N":
if (w) cpu.setNF(); else cpu.clearNF();
break;
case "Z":
if (w) cpu.setZF(); else cpu.clearZF();
break;
case "V":
if (w) cpu.setVF(); else cpu.clearVF();
break;
case "C":
if (w) cpu.setCF(); else cpu.clearCF();
break;
default:
if (sRegMatch.charAt(0) == 'R') {
var iReg = +sRegMatch.charAt(1);
if (iReg >= 0 && iReg < 6) {
cpu.regsGen[iReg] = w & 0xffff;
break;
}
}
}
if (!fValid) {
this.println("invalid value: " + sValue);
this.println("unknown register: " + sReg);
return;
}
cpu.updateCPU();
this.println("updated registers:");
}