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All PDP-11 opcode decoders implemented now

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Jeff 2016-09-28 13:45:36 -07:00 • committed by Jeff Parsons
commit 0ad98dc68b
9 changed files with 408 additions and 389 deletions
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96
modules/pdp11/lib/cpuops.js
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@ -1159,22 +1159,9 @@ PDP11.opMARK = function(opCode)
*/
PDP11.opMFPD = function(opCode)
{
var src;
if (!(opCode & PDP11.OPMODE.MASK)) {
var reg = opCode & 7;
if (reg != 6 || ((this.regPSW >> 2) & PDP11.PSW.PMODE) === (this.regPSW & PDP11.PSW.PMODE)) {
src = this.regsGen[reg];
} else {
src = this.regsAltStack[(this.regPSW >> 12) & 3];
}
} else {
var addr = this.getVirtualByMode(opCode, PDP11.ACCESS.WORD);
this.mmuMode = (this.regPSW >> 12) & 3;
src = this.readWordFromVirtual(addr | 0x10000);
this.mmuMode = (this.regPSW >> 14) & 3;
}
this.pushWord(src);
this.updateNZFlags(src);
var data = this.readWordFromPrevSpace(opCode, PDP11.ACCESS.DSPACE);
this.pushWord(data);
this.updateNZFlags(data);
this.nStepCycles -= 1;
};
@ -1186,40 +1173,9 @@ PDP11.opMFPD = function(opCode)
*/
PDP11.opMFPI = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
this.nStepCycles -= 1;
};
/**
* opMFPS(opCode)
*
* @this {CPUStatePDP11}
* @param {number} opCode
*/
PDP11.opMFPS = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
this.nStepCycles -= 1;
};
/**
* opMFPT(opCode)
*
* @this {CPUStatePDP11}
* @param {number} opCode
*/
PDP11.opMFPT = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
var data = this.readWordFromPrevSpace(opCode, PDP11.ACCESS.ISPACE);
this.pushWord(data);
this.updateNZFlags(data);
this.nStepCycles -= 1;
};
@ -1256,10 +1212,9 @@ PDP11.opMOVB = function(opCode)
*/
PDP11.opMTPD = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
var data = this.popWord();
this.writeWordToPrevSpace(opCode, PDP11.ACCESS.DSPACE, data);
this.updateNZFlags(data);
this.nStepCycles -= 1;
};
@ -1271,25 +1226,9 @@ PDP11.opMTPD = function(opCode)
*/
PDP11.opMTPI = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
this.nStepCycles -= 1;
};
/**
* opMTPS(opCode)
*
* @this {CPUStatePDP11}
* @param {number} opCode
*/
PDP11.opMTPS = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
var data = this.popWord();
this.writeWordToPrevSpace(opCode, PDP11.ACCESS.ISPACE, data);
this.updateNZFlags(data);
this.nStepCycles -= 1;
};
@ -1649,10 +1588,7 @@ PDP11.opTSTB = function(opCode)
*/
PDP11.opWAIT = function(opCode)
{
/*
* TODO: Implement
*/
this.regOp = -1;
this.checkInterruptDelay();
this.nStepCycles -= 1;
};
@ -1969,7 +1905,7 @@ PDP11.aOps000X_1170 = [
PDP11.opIOT, // 0x0004
PDP11.opRESET, // 0x0005
PDP11.opRTT, // 0x0006
PDP11.opMFPT, // 0x0007
PDP11.opUndefined, // 0x0007
PDP11.opUndefined, // 0x0008
PDP11.opUndefined, // 0x0009
PDP11.opUndefined, // 0x000A
@ -2068,8 +2004,8 @@ PDP11.aOps8CXn_1170 = [
];
PDP11.aOps8DXn_1170 = [
PDP11.opMTPS, // 0x8D0n
PDP11.opUndefined, // 0x8D0n
PDP11.opMFPD, // 0x8D4n
PDP11.opMTPD, // 0x8D8n
PDP11.opMFPS // 0x8DCn
PDP11.opUndefined // 0x8DCn
];