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Added preliminary PDP-10 opcode decoding

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Jeff Parsons 2017-02-26 09:13:16 -08:00 • committed by Jeff Parsons
commit e3ab5b1ed5
4 changed files with 1302 additions and 904 deletions
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6
modules/pdp11/lib/cpustate.js
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@ -167,14 +167,14 @@ class CPUStatePDP11 extends CPUPDP11 {
this.maskRegSrcByte = 0xff;
if (this.model <= PDP11.MODEL_1120) {
this.decode = PDP11.op1120.bind(this);
this.opDecode = PDP11.op1120.bind(this);
this.checkStackLimit = this.checkStackLimit1120;
this.offRegSrc = 8;
this.maskRegSrcByte = -1;
this.pswUsed = ~(PDP11.PSW.UNUSED | PDP11.PSW.REGSET | PDP11.PSW.PMODE | PDP11.PSW.CMODE) & 0xffff;
this.pswRegSet = 0;
} else {
this.decode = PDP11.op1140.bind(this);
this.opDecode = PDP11.op1140.bind(this);
this.checkStackLimit = this.checkStackLimit1140;
/*
* The alternate register set (REGSET) doesn't exist on the 11/20 or 11/40; it's available on the 11/45 and 11/70.
@ -3058,7 +3058,7 @@ class CPUStatePDP11 extends CPUPDP11 {
this.opFlags = (this.opFlags & PDP11.OPFLAG.PRESERVE) | (this.regPSW & PDP11.PSW.TF);
var opCode = this.getOpcode();
this.decode(opCode);
this.opDecode(opCode);
} while (this.nStepCycles > 0);