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Fixed the SXT and XOR opcodes (a couple of small oops)

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Jeff 2016-11-14 21:03:04 -08:00 • committed by Jeff Parsons
commit 365b24c684
4 changed files with 436 additions and 435 deletions
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5
modules/pdp11/lib/cpuops.js
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@ -1739,7 +1739,7 @@ PDP11.opSWAB = function(opCode)
*/
PDP11.opSXT = function(opCode)
{
this.updateNZVFlags(this.writeDstWord(opCode, this.getNF? 0xffff : 0));
this.updateNZVFlags(this.writeDstWord(opCode, this.getNF()? 0xffff : 0));
this.nStepCycles -= (this.dstMode? (8 + 1) : (2 + 1) + (this.dstReg == 7? 2 : 0));
};
@ -1846,7 +1846,8 @@ PDP11.opWAIT = function(opCode)
*/
PDP11.opXOR = function(opCode)
{
this.updateDstWord(opCode, this.readSrcWord(opCode), PDP11.fnXOR);
var reg = (opCode >> PDP11.SRCMODE.SHIFT) & PDP11.OPREG.MASK;
this.updateDstWord(opCode, this.regsGen[reg], PDP11.fnXOR);
this.nStepCycles -= (this.dstMode? (8 + 1) : (2 + 1) + (this.dstReg == 7? 2 : 0));
};