Started work on PDP-10 logical operations

This commit is contained in:
Jeff 2017-03-03 11:30:34 -08:00 committed by Jeff Parsons
commit 616f9d4cda
7 changed files with 468 additions and 503 deletions

View file

@ -216,7 +216,7 @@ PDP10.opIBP = function(op, acc)
* but I would like to keep PTR_MASK distinct from both the P and S fields.
*/
w = (p * PDP10.OPCODE.P_SCALE) + (s << PDP10.OPCODE.S_SHIFT) + (w & PDP10.OPCODE.PTR_MASK);
if (inc) w = (w + inc) % PDP10.DATA_LIMIT;
if (inc) w = (w + inc) % PDP10.WORD_LIMIT;
this.writeWord(this.regEA, w);
};
@ -293,7 +293,12 @@ PDP10.opLDB = function(op, acc)
var p = (this.regPS / PDP10.OPCODE.P_SCALE) & PDP10.OPCODE.P_MASK;
var s = (this.regPS >> PDP10.OPCODE.S_SHIFT) & PDP10.OPCODE.S_MASK;
if (p + s <= 32) {
w = (w >> p) & ((1 << s) - 1);
/*
* WARNING: When using JavaScript's 32-bit operators with values that could set bit 31 and produce a
* negative value, it's critical to perform a final right-shift of 0, ensuring that the final result is
* positive.
*/
w = ((w >> p) & ((1 << s) - 1)) >>> 0;
} else {
/*
* Regarding the SPECIAL CONSIDERATIONS above, even if the P ("shift") and/or S ("mask") values are
@ -382,7 +387,7 @@ PDP10.opDPB = function(op, acc)
* over-large, we "mask" the resulting byte value (b) to 36 bits, so that when we re-assemble the final
* result (w), there shouldn't be any overlap or overflow.
*/
var b = ((this.readWord(acc) % Math.pow(2, s)) * Math.pow(2, p)) % PDP10.DATA_LIMIT;
var b = ((this.readWord(acc) % Math.pow(2, s)) * Math.pow(2, p)) % PDP10.WORD_LIMIT;
w = (w - (w % Math.pow(2, p + s))) + b + (w % Math.pow(2, p));
this.writeWord(this.regEA, w);
this.regPS = -1;
@ -782,6 +787,8 @@ PDP10.opFDVRB = function(op, acc)
*
* NOTE: This is a "Basic" mode instruction: the source is [E] and the destination is [A] (opposite of "Memory").
*
* Equivalents: opSETM(0o414000) and opSETMB(0o417000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
@ -803,6 +810,8 @@ PDP10.opMOVE = function(op, acc)
*
* NOTE: This is an "Immediate" mode instruction: the source is the word 0,E and the destination is [A].
*
* Equivalents: opSETMI(0o415000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
@ -822,6 +831,8 @@ PDP10.opMOVEI = function(op, acc)
*
* NOTE: This is a "Memory" mode instruction: the source is [A] and the destination is [E] (opposite of "Basic").
*
* Equivalents: opSETAM(0o426000) and opSETAB(0o427000).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
@ -869,7 +880,7 @@ PDP10.opMOVES = function(op, acc)
PDP10.opMOVS = function(op, acc)
{
var src = this.readWord(this.regEA);
src = (src / PDP10.WORD_SHIFT) | ((src & PDP10.WORD_MASK) * PDP10.WORD_SHIFT);
src = ((src / PDP10.HALF_SHIFT)|0) + ((src % PDP10.HALF_SHIFT) * PDP10.HALF_SHIFT);
this.writeWord(acc, src);
};
@ -891,7 +902,7 @@ PDP10.opMOVS = function(op, acc)
*/
PDP10.opMOVSI = function(op, acc)
{
this.writeWord(acc, this.regEA * PDP10.WORD_SHIFT);
this.writeWord(acc, this.regEA * PDP10.HALF_SHIFT);
};
/**
@ -911,7 +922,7 @@ PDP10.opMOVSI = function(op, acc)
PDP10.opMOVSM = function(op, acc)
{
var src = this.readWord(acc);
src = (src / PDP10.WORD_SHIFT) | ((src & PDP10.WORD_MASK) * PDP10.WORD_SHIFT);
src = ((src / PDP10.HALF_SHIFT)|0) + ((src % PDP10.HALF_SHIFT) * PDP10.HALF_SHIFT);
this.writeWord(this.regEA, src);
};
@ -932,7 +943,7 @@ PDP10.opMOVSM = function(op, acc)
PDP10.opMOVSS = function(op, acc)
{
var src = this.readWord(this.regEA);
src = (src / PDP10.WORD_SHIFT) | ((src & PDP10.WORD_MASK) * PDP10.WORD_SHIFT);
src = ((src / PDP10.HALF_SHIFT)|0) + ((src % PDP10.HALF_SHIFT) * PDP10.HALF_SHIFT);
this.writeWord(this.regEA, src);
if (acc) this.writeWord(acc, src)
};
@ -1475,19 +1486,19 @@ PDP10.opBLT = function(op, acc)
{
var fDone = false;
var addrDst = this.readWord(acc);
var addrSrc = (addrDst / PDP10.WORD_SHIFT)|0;
addrDst &= PDP10.WORD_MASK;
var addrSrc = (addrDst / PDP10.HALF_SHIFT)|0;
addrDst &= PDP10.HALF_MASK;
while (!fDone) {
this.writeWord(addrDst, this.readWord(addrSrc));
if (addrDst == this.regEA) fDone = true;
addrSrc = (addrSrc + 1) & PDP10.WORD_MASK;
addrDst = (addrDst + 1) & PDP10.WORD_MASK;
addrSrc = (addrSrc + 1) & PDP10.HALF_MASK;
addrDst = (addrDst + 1) & PDP10.HALF_MASK;
if (!this.isRunning()) {
/*
* Since the CPU isn't currently running, the CPU is presumably being stepped, so we'll treat that the
* same as the "priority interrupt" condition described above, update the accumulator, rewind the PC, and leave.
*/
this.writeWord(acc, addrSrc * PDP10.WORD_SHIFT + addrDst);
this.writeWord(acc, addrSrc * PDP10.HALF_SHIFT + addrDst);
if (!fDone) this.advancePC(-1);
fDone = true;
}
@ -1602,18 +1613,18 @@ PDP10.opPUSH = function(op, acc)
* This is the behavior that is clearly documented by DEC.
*/
p += 0o000001000001;
this.writeWord(p & PDP10.WORD_MASK, this.readWord(this.regEA));
if (p >= PDP10.DATA_LIMIT) p -= PDP10.DATA_LIMIT;
if (!((p / PDP10.WORD_SHIFT) | 0)) this.fPDOverflow = true;
this.writeWord(p & PDP10.HALF_MASK, this.readWord(this.regEA));
if (p >= PDP10.WORD_LIMIT) p -= PDP10.WORD_LIMIT;
if (!((p / PDP10.HALF_SHIFT)|0)) this.fPDOverflow = true;
} else {
/*
* This is the SIMH behavior, which appears to increment each half of AC independently.
*/
var addr = (p + 1) & PDP10.WORD_MASK;
var addr = (p + 1) & PDP10.HALF_MASK;
this.writeWord(addr, this.readWord(this.regEA));
p = (p + 0o000001000000) - (p & PDP10.WORD_MASK) + addr;
if (p >= PDP10.DATA_LIMIT) {
p -= PDP10.DATA_LIMIT;
p = (p + 0o000001000000) - (p & PDP10.HALF_MASK) + addr;
if (p >= PDP10.WORD_LIMIT) {
p -= PDP10.WORD_LIMIT;
this.fPDOverflow = true;
}
}
@ -1639,12 +1650,12 @@ PDP10.opPUSH = function(op, acc)
PDP10.opPOP = function(op, acc)
{
var p = this.readWord(acc);
var src = this.readWord(p & PDP10.WORD_MASK);
var src = this.readWord(p & PDP10.HALF_MASK);
this.writeWord(this.regEA, src);
if (this.regEA == acc) p = src; // this avoids re-reading the accumulator if the write just overwrote it
p -= 0o000001000001;
if (p < 0) p += PDP10.DATA_LIMIT;
if (((p / PDP10.WORD_SHIFT) | 0) == PDP10.WORD_MASK) this.fPDOverflow = true;
if (p < 0) p += PDP10.WORD_LIMIT;
if (((p / PDP10.HALF_SHIFT)|0) == PDP10.HALF_MASK) this.fPDOverflow = true;
this.writeWord(acc, p);
};
@ -2573,7 +2584,7 @@ PDP10.opSOSG = function(op, acc)
};
/**
* opSETZ(0o400000)
* opSETZ(0o400000) and opSETZI(0o401000)
*
* @this {CPUStatePDP10}
* @param {number} op
@ -2581,19 +2592,7 @@ PDP10.opSOSG = function(op, acc)
*/
PDP10.opSETZ = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETZI(0o401000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETZI = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, 0);
};
/**
@ -2605,7 +2604,7 @@ PDP10.opSETZI = function(op, acc)
*/
PDP10.opSETZM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(this.regEA, 0);
};
/**
@ -2617,55 +2616,66 @@ PDP10.opSETZM = function(op, acc)
*/
PDP10.opSETZB = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, 0);
this.writeWord(this.regEA, 0);
};
/**
* opAND(0o404000)
*
* Change the contents of the destination specified by M ([AC]) to the AND function of the specified operand ([E]) and [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opAND = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.doAND(this.readWord(acc), this.readWord(this.regEA)));
};
/**
* opANDI(0o405000)
*
* Change the contents of the destination specified by M ([AC]) to the AND function of the specified operand (E) and [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opANDI = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.doAND(this.readWord(acc), this.regEA));
};
/**
* opANDM(0o406000)
*
* Change the contents of the destination specified by M ([E]) to the AND function of the specified operand ([E]) and [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opANDM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(this.regEA, PDP10.doAND(this.readWord(acc), this.readWord(this.regEA)));
};
/**
* opANDB(0o407000)
*
* Change the contents of the destination specified by M ([E] and [AC]) to the AND function of the specified operand ([E]) and [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opANDB = function(op, acc)
{
this.opUndefined(op);
var result = PDP10.doAND(this.readWord(acc), this.readWord(this.regEA));
this.writeWord(this.regEA, result);
this.writeWord(acc, result);
};
/**
@ -2716,54 +2726,6 @@ PDP10.opANDCAB = function(op, acc)
this.opUndefined(op);
};
/**
* opSETM(0o414000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETM = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETMI(0o415000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETMI = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETMM(0o416000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETMM = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETMB(0o417000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETMB = function(op, acc)
{
this.opUndefined(op);
};
/**
* opANDCM(0o420000)
*
@ -2812,54 +2774,6 @@ PDP10.opANDCMB = function(op, acc)
this.opUndefined(op);
};
/**
* opSETA(0o424000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETA = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETAI(0o425000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETAI = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETAM(0o426000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETAM = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETAB(0o427000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETAB = function(op, acc)
{
this.opUndefined(op);
};
/**
* opXOR(0o430000)
*
@ -3053,7 +2967,9 @@ PDP10.opEQVB = function(op, acc)
};
/**
* opSETCA(0o450000)
* opSETCA(0o450000) and opSETCAI(0o451000)
*
* Change the contents of the destination specified by M ([AC]) to the complement of [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
@ -3061,43 +2977,37 @@ PDP10.opEQVB = function(op, acc)
*/
PDP10.opSETCA = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETCAI(0o451000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCAI = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.WORD_MASK - this.readWord(acc));
};
/**
* opSETCAM(0o452000)
*
* Change the contents of the destination specified by M ([E]) to the complement of [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCAM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(this.regEA, PDP10.WORD_MASK - this.readWord(acc));
};
/**
* opSETCAB(0o453000)
*
* Change the contents of the destination specified by M ([E] and [AC]) to the complement of [AC].
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCAB = function(op, acc)
{
this.opUndefined(op);
var dst = PDP10.WORD_MASK - this.readWord(acc);
this.writeWord(acc, dst);
this.writeWord(this.regEA, dst);
};
/**
@ -3151,49 +3061,59 @@ PDP10.opORCAB = function(op, acc)
/**
* opSETCM(0o460000)
*
* Change the contents of the destination specified by M ([AC]) to the complement of the specified source operand ([E]).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.WORD_MASK - this.readWord(this.regEA));
};
/**
* opSETCMI(0o461000)
*
* Change the contents of the destination specified by M ([AC]) to the complement of the specified source operand (E).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCMI = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.WORD_MASK - this.regEA);
};
/**
* opSETCMM(0o462000)
*
* Change the contents of the destination specified by M ([E]) to the complement of the specified source operand ([E]).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCMM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(this.regEA, PDP10.WORD_MASK - this.readWord(this.regEA));
};
/**
* opSETCMB(0o463000)
*
* Change the contents of the destination specified by M ([E] and [AC]) to the complement of the specified source operand ([E]).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETCMB = function(op, acc)
{
this.opUndefined(op);
var dst = PDP10.WORD_MASK - this.readWord(this.regEA);
this.writeWord(acc, dst);
this.writeWord(this.regEA, dst);
};
/**
@ -3293,7 +3213,9 @@ PDP10.opORCBB = function(op, acc)
};
/**
* opSETO(0o474000)
* opSETO(0o474000) and opSETOI(0o475000)
*
* Change the contents of the destination specified by M (AC) to all 1s.
*
* @this {CPUStatePDP10}
* @param {number} op
@ -3301,43 +3223,36 @@ PDP10.opORCBB = function(op, acc)
*/
PDP10.opSETO = function(op, acc)
{
this.opUndefined(op);
};
/**
* opSETOI(0o475000)
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETOI = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.WORD_MASK);
};
/**
* opSETOM(0o476000)
*
* Change the contents of the destination specified by M ([E]) to all 1s.
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETOM = function(op, acc)
{
this.opUndefined(op);
this.writeWord(this.regEA, PDP10.WORD_MASK);
};
/**
* opSETOB(0o477000)
*
* Change the contents of the destination specified by M ([E] and [AC]) to all 1s.
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opSETOB = function(op, acc)
{
this.opUndefined(op);
this.writeWord(acc, PDP10.WORD_MASK);
this.writeWord(this.regEA, PDP10.WORD_MASK);
};
/**
@ -3358,7 +3273,7 @@ PDP10.opHLL = function(op, acc)
{
var src = this.readWord(this.regEA);
var dst = this.readWord(acc);
this.writeWord(acc, PDP10.getHR(op, dst, src) + (src - (src & PDP10.WORD_MASK)));
this.writeWord(acc, PDP10.getHR(op, dst, src) + (src - (src & PDP10.HALF_MASK)));
};
/**
@ -3402,7 +3317,7 @@ PDP10.opHLLM = function(op, acc)
{
var src = this.readWord(acc);
var dst = this.readWord(this.regEA);
this.writeWord(this.regEA, PDP10.getHR(op, dst, src) + (src - (src & PDP10.WORD_MASK)));
this.writeWord(this.regEA, PDP10.getHR(op, dst, src) + (src - (src & PDP10.HALF_MASK)));
};
/**
@ -3446,7 +3361,7 @@ PDP10.opHLLS = function(op, acc)
*/
PDP10.opHRL = function(op, acc)
{
var src = (this.readWord(this.regEA) & PDP10.WORD_MASK) * PDP10.WORD_SHIFT;
var src = (this.readWord(this.regEA) & PDP10.HALF_MASK) * PDP10.HALF_SHIFT;
var dst = this.readWord(acc);
this.writeWord(acc, PDP10.getHR(op, dst, src) + src);
};
@ -3468,7 +3383,7 @@ PDP10.opHRL = function(op, acc)
*/
PDP10.opHRLI = function(op, acc)
{
var src = this.regEA * PDP10.WORD_SHIFT;
var src = this.regEA * PDP10.HALF_SHIFT;
var dst = this.readWord(acc);
this.writeWord(acc, PDP10.getHR(op, dst, src) + src);
};
@ -3490,7 +3405,7 @@ PDP10.opHRLI = function(op, acc)
*/
PDP10.opHRLM = function(op, acc)
{
var src = (this.readWord(acc) & PDP10.WORD_MASK) * PDP10.WORD_SHIFT;
var src = (this.readWord(acc) & PDP10.HALF_MASK) * PDP10.HALF_SHIFT;
var dst = this.readWord(this.regEA);
this.writeWord(this.regEA, PDP10.getHR(op, dst, src) + src);
};
@ -3513,7 +3428,7 @@ PDP10.opHRLM = function(op, acc)
PDP10.opHRLS = function(op, acc)
{
var dst = this.readWord(this.regEA);
var src = (dst & PDP10.WORD_MASK) * PDP10.WORD_SHIFT;
var src = (dst & PDP10.HALF_MASK) * PDP10.HALF_SHIFT;
dst = PDP10.getHR(op, dst, src) + src;
this.writeWord(this.regEA, dst);
if (acc) this.writeWord(acc, dst);
@ -3536,7 +3451,7 @@ PDP10.opHRLS = function(op, acc)
*/
PDP10.opHRR = function(op, acc)
{
var src = this.readWord(this.regEA) & PDP10.WORD_MASK;
var src = this.readWord(this.regEA) & PDP10.HALF_MASK;
var dst = this.readWord(acc);
this.writeWord(acc, PDP10.getHL(op, dst, src) + src);
};
@ -3579,7 +3494,7 @@ PDP10.opHRRI = function(op, acc)
*/
PDP10.opHRRM = function(op, acc)
{
var src = this.readWord(acc) & PDP10.WORD_MASK;
var src = this.readWord(acc) & PDP10.HALF_MASK;
var dst = this.readWord(this.regEA);
this.writeWord(this.regEA, PDP10.getHL(op, dst, src) + src);
};
@ -3625,7 +3540,7 @@ PDP10.opHRRS = function(op, acc)
*/
PDP10.opHLR = function(op, acc)
{
var src = (this.readWord(this.regEA) / PDP10.WORD_SHIFT)|0;
var src = (this.readWord(this.regEA) / PDP10.HALF_SHIFT)|0;
var dst = this.readWord(acc);
this.writeWord(acc, PDP10.getHL(op, dst, src) + src);
};
@ -3668,7 +3583,7 @@ PDP10.opHLRI = function(op, acc)
*/
PDP10.opHLRM = function(op, acc)
{
var src = (this.readWord(acc) / PDP10.WORD_SHIFT)|0;
var src = (this.readWord(acc) / PDP10.HALF_SHIFT)|0;
var dst = this.readWord(this.regEA);
this.writeWord(this.regEA, PDP10.getHL(op, dst, src) + src);
};
@ -3690,7 +3605,7 @@ PDP10.opHLRM = function(op, acc)
PDP10.opHLRS = function(op, acc)
{
var dst = this.readWord(this.regEA);
var src = (dst / PDP10.WORD_SHIFT)|0;
var src = (dst / PDP10.HALF_SHIFT)|0;
dst = PDP10.getHL(op, dst, src) + src;
this.writeWord(this.regEA, dst);
if (acc) this.writeWord(acc, dst);
@ -4572,6 +4487,19 @@ PDP10.opIO = function(op, acc)
this.opUndefined(op);
};
/**
* opNOP(op, acc)
*
* Used for all "defined" operations that, in fact, do nothing (eg, SETA and SETAI).
*
* @this {CPUStatePDP10}
* @param {number} op
* @param {number} acc
*/
PDP10.opNOP = function(op, acc)
{
};
/**
* opUndefined(op, acc)
*
@ -4600,16 +4528,16 @@ PDP10.getHL = function(op, dst, src)
{
switch(op & 0o600) {
case 0o000:
dst -= (dst & PDP10.WORD_MASK);
dst -= (dst & PDP10.HALF_MASK);
break;
case 0o200:
dst = 0;
break;
case 0o400:
dst = (PDP10.WORD_MASK * PDP10.WORD_SHIFT);
dst = (PDP10.HALF_MASK * PDP10.HALF_SHIFT);
break;
case 0o600:
dst = (src > PDP10.MAX_POS18? (PDP10.WORD_MASK * PDP10.WORD_SHIFT) : 0);
dst = (src > PDP10.MAX_POS18? (PDP10.HALF_MASK * PDP10.HALF_SHIFT) : 0);
break;
}
return dst;
@ -4628,13 +4556,13 @@ PDP10.getHL = function(op, dst, src)
PDP10.setHL = function(op, dst, src)
{
if (op &= 0o600) {
dst &= PDP10.WORD_MASK;
dst &= PDP10.HALF_MASK;
switch(op) {
case 0o400:
dst += (PDP10.WORD_MASK * PDP10.WORD_SHIFT);
dst += (PDP10.HALF_MASK * PDP10.HALF_SHIFT);
break;
case 0o600:
dst += (src > PDP10.MAX_POS18? (PDP10.WORD_MASK * PDP10.WORD_SHIFT) : 0);
dst += (src > PDP10.MAX_POS18? (PDP10.HALF_MASK * PDP10.HALF_SHIFT) : 0);
break;
}
}
@ -4655,16 +4583,16 @@ PDP10.getHR = function(op, dst, src)
{
switch(op & 0o600) {
case 0o000:
dst = (dst & PDP10.WORD_MASK);
dst = (dst & PDP10.HALF_MASK);
break;
case 0o200:
dst = 0;
break;
case 0o400:
dst = PDP10.WORD_MASK;
dst = PDP10.HALF_MASK;
break;
case 0o600:
dst = (src > PDP10.MAX_POS36? PDP10.WORD_MASK : 0);
dst = (src > PDP10.MAX_POS36? PDP10.HALF_MASK : 0);
break;
}
return dst;
@ -4683,19 +4611,41 @@ PDP10.getHR = function(op, dst, src)
PDP10.setHR = function(op, dst, src)
{
if (op &= 0o600) {
dst -= (dst & PDP10.WORD_MASK);
dst -= (dst & PDP10.HALF_MASK);
switch(op) {
case 0o400:
dst += PDP10.WORD_MASK;
dst += PDP10.HALF_MASK;
break;
case 0o600:
dst += (src > PDP10.MAX_POS36? PDP10.WORD_MASK : 0);
dst += (src > PDP10.MAX_POS36? PDP10.HALF_MASK : 0);
break;
}
}
return dst;
};
/**
* doAND(dst, src)
*
* Used by callers to perform a logical "AND" of two 36-bit operands.
*
* @param {number} dst (36-bit value)
* @param {number} src (36-bit value)
* @return {number} (dst & src)
*/
PDP10.doAND = function(dst, src)
{
/*
* Since dst and src are 36-bit values, we must "AND" the low 32 bits separately from the higher bits,
* and then combine them with addition.
*
* WARNING: When using JavaScript's 32-bit operators with values that could set bit 31 and produce a
* negative value, it's critical to perform a final right-shift of 0, ensuring that the final result is
* positive.
*/
return ((((dst / PDP10.TWO_POW32)|0) & ((src / PDP10.TWO_POW32)|0)) * PDP10.TWO_POW32) + ((dst & src) >>> 0);
};
/*
* If we want the basic half-word operations to handle all the sub-operations; ie:
*
@ -4755,6 +4705,18 @@ PDP10.opHLREI = PDP10.opHLRI;
PDP10.opHLREM = PDP10.opHLRM;
PDP10.opHLRES = PDP10.opHLRS;
PDP10.opSETZI = PDP10.opSETZ;
PDP10.opSETOI = PDP10.opSETO;
PDP10.opSETCAI = PDP10.opSETCA;
PDP10.opSETA = PDP10.opNOP;
PDP10.opSETAI = PDP10.opNOP;
PDP10.opSETAM = PDP10.opMOVEM;
PDP10.opSETAB = PDP10.opMOVEM;
PDP10.opSETM = PDP10.opMOVE;
PDP10.opSETMI = PDP10.opMOVEI;
PDP10.opSETMM = PDP10.opNOP;
PDP10.opSETMB = PDP10.opMOVE;
PDP10.aOpXXX_KA10 = [
PDP10.opUUO, // 0o000xxx
PDP10.opUUO, // 0o001xxx

View file

@ -459,7 +459,7 @@ class DebuggerPDP10 extends Debugger {
*/
getWord(dbgAddr, inc)
{
var w = PDP10.DATA_INVALID;
var w = PDP10.WORD_INVALID;
var addr = this.getAddr(dbgAddr, false);
if (addr !== PDP10.ADDR_INVALID) {
w = this.bus.getWordDirect(addr);
@ -590,14 +590,14 @@ class DebuggerPDP10 extends Debugger {
* toStrWord(w)
*
* @this {DebuggerPDP10}
* @param {number} w (up to, but not including, DATA_LIMIT)
* @param {number} w (up to, but not including, WORD_LIMIT)
* @return {string} octal representation of the 36-bit word, as two 18-bit values
*/
toStrWord(w)
{
/*
* ADDR_LIMIT is not derived from DATA_LIMIT; we're just taking advantage of the fact
* that ADDR_LIMIT happens to be exactly half of DATA_LIMIT, and they are both powers of two.
* ADDR_LIMIT is not derived from WORD_LIMIT; we're just taking advantage of the fact
* that ADDR_LIMIT happens to be exactly half of WORD_LIMIT, and they are both powers of two.
*/
return Str.toOct(w / PDP10.ADDR_LIMIT, 6) + ' ' + Str.toOct(w % PDP10.ADDR_LIMIT, 6);
}
@ -3891,7 +3891,7 @@ if (DEBUGGER) {
0o23400: DebuggerPDP10.OPS.DIV,
0o27000: DebuggerPDP10.OPS.ADD,
0o27400: DebuggerPDP10.OPS.SUB,
0o40000: DebuggerPDP10.OPS.SETZ,
0o40000: DebuggerPDP10.OPS.SETZ, // MACRO alias: CLEAR
0o40400: DebuggerPDP10.OPS.AND,
0o41000: DebuggerPDP10.OPS.ANDCA,
0o41400: DebuggerPDP10.OPS.SETM,

View file

@ -103,10 +103,11 @@ var PDP10 = {
ADDR_INVALID: -1,
ADDR_LIMIT: Math.pow(2, 18),
ADDR_MASK: Math.pow(2, 18) - 1,
DATA_INVALID: -1,
DATA_LIMIT: Math.pow(2, 36),
WORD_SHIFT: Math.pow(2, 18),
WORD_MASK: 0o777777,
WORD_INVALID: -1,
WORD_LIMIT: Math.pow(2, 36),
WORD_MASK: Math.pow(2, 36) - 1,
HALF_SHIFT: Math.pow(2, 18),
HALF_MASK: Math.pow(2, 18) - 1,
/*
* 18-bit and 36-bit largest positive (and smallest negative) values; however, since we store all
@ -117,6 +118,7 @@ var PDP10 = {
MAX_POS36: Math.pow(2, 35) - 1, // 34,359,738,367 (377777 777777)
MIN_NEG36: Math.pow(2, 35), // -34,359,738,368 (400000 000000)
TWO_POW36: Math.pow(2, 36), // the two's complement of a 36-bit value is (value? TWO_POW36 - value : 0)
TWO_POW32: Math.pow(2, 32),
/*
* PDP-10 opcodes are 36-bit values, most of which use the following layout:

View file

@ -396,7 +396,7 @@ class MemoryPDP10 {
this.dbg.printMessage("attempt to read invalid address " + this.dbg.toStrBase(addr), true);
}
this.bus.fault(addr);
return PDP10.DATA_INVALID;
return PDP10.WORD_INVALID;
}
/**

View file

@ -1043,7 +1043,7 @@ class PanelPDP10 extends Component {
*/
updateData(value)
{
this.regData = value % PDP10.DATA_LIMIT;
this.regData = value % PDP10.WORD_LIMIT;
if (this.ledData !== this.regData) {
this.ledData = this.regData;
this.updateLEDArray("D", this.ledData, 16);

View file

@ -27,204 +27,204 @@
http://pcjs.org/modules/shared/lib/debugger.js (C) Jeff Parsons 2012-2017
http://pcjs.org/modules/pdp10/lib/debugger.js (C) Jeff Parsons 2012-2017
*/
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function Ef(a,b,c,d){var e=Q(b.w),g=a.xa(b,1),f,h,k,m=0,n=g/Rb|0,r;for(r in Ff)if(f=Ff[r][n&r]){h=+r;n>>=6;switch(h){case 32512:k=Gf;m=n&3;break;case 32256:k=Hf;m=n&7;break;case 29248:k=If,m=(n&48)>>2|(n&6)>>1}break}k=k&&k[m]||"";"S"==k&&f>Jf&&(k="B");k=Kf[f||0]+k;k=Ba(k,8);f?(k=28700==h?k+K(a,g/Sb&127,-1):k+K(a,g>>23&15,-1),k+=",",g&4194304&&(k+="@"),k+=K(a,g&262143,-1),(g=g>>18&15)&&(k+="("+K(a,g,-1)+")")):k+=Fe(g);g=k;f="";h=K(a,e.w)+":";if(-1!==e.w&&-1!==b.w){do if(k=a.xa(e,1),f+=" "+Fe(k),null==
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function Tc(a,b,c,d,e){var g=!1;if(!a.ra++)for(var f=1;!g&&f<d.length;f++){var h=d[f];if(!e||h.ea)for(var k=S(h)&(d==a.b?65535:-1),m=0;m<c;m++)if(b+m==k){var n,g=!0;h.ea&&(Lf(a,d,h,!0),e=!0);if(n=h.lb){for(var g=!1,r=0;r<n.length;r++)if(!Of(a,n[r],!0)){if(n[r].indexOf("if")){g=!0;break}for(var z=r+1;z<n.length&&n[z].indexOf("else");z++)r++;if(z==n.length){g=!0;break}}a.i.j.K||(g=!0)}if(g){e||Mf(a,d,f,"hit");break}}}a.ra--;return g}
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function ie(a,b,c,d,e){var g=[],f;for(f in e){var h=e[f];"number"==typeof h&&(e[f]=h={o:h});var k=h.o,m=h.a;if(void 0!==k){var n=g,k=[k>>>0,f],r=Da(n,k,a.ob);0>r&&n.splice(-(r+1),0,k)}m&&(h.a=m.replace(/''/g,'"'))}a.H.push({fd:b,w:c,Fb:d,T:e,mb:g})}function Qf(a,b,c){var d=[],e=S(b)>>>0;for(b=0;b<a.H.length;b++){var g=a.H[b],f=g.w>>>0,h=g.Fb;if(e>=f&&e<f+h){e=Da(g.mb,[e-f],a.ob);0<=e?Rf(a,b,e,d):c&&(e=~e,Rf(a,b,e-1,d),Rf(a,b,e,d));break}}return d}
function Rf(a,b,c,d){var e={},g=a.H[b].mb,f=0,h=null;0<=c&&c<g.length&&(f=g[c][0],h=g[c][1]);h&&(e=a.H[b].T[h],h="."==h.charAt(0)?null:e.l||h);d.push(h);d.push(f);d.push(e.a);d.push(e.c)}function Sf(a,b){var c=b.match(/^\s*([A-Z_]?[A-Z0-9_]*)\s*(=?)\s*(.*)$/i);if(c){if(!c[1])return ve(a)||a.g("no variables"),!0;if(!c[2])return ve(a,c[1]);if(!c[3])return delete a.W[c[1]],!0;b=P(a,c[3]);return void 0!==b?(a.W[c[1]]=b,!0):!1}a.g("invalid assignment:"+b);return!1}
function Tf(a,b,c){var d=null;if(b=T(a,b)){var e=Qf(a,b,!0);if(e.length){var g,f;e[0]&&(f="",(g=b.w-e[1])&&(f=" + "+t(g,4,!0)),g=e[0]+" ("+K(a,e[1])+")"+f,c&&a.g(g),d=g);4<e.length&&e[4]&&(f="",(g=e[5]-b.w)&&(f=" - "+t(g,4,!0)),g=e[4]+" ("+K(a,e[5])+")"+f,c&&a.g(g),d||(d=g))}else c&&a.g("no symbols")}return d}
function Bf(a,b){var c;if(b&&"?"==b[1])a.g("register commands:"),a.g("\tr\tdump registers"),a.g("\trm\tdump misc registers"),a.g("\trx [#]\tset flag or register x to [#]");else{var d=a.i,e=void 0;null==c&&(c=!0);if(b&&1<b.length){var g=b[1];if("m"==g)e=!0;else{var f=g.indexOf("=");if(0<f)b=g.substr(f+1),g=g.substr(0,f);else if(2<b.length)b=b[2];else{a.g("missing value for "+b[1]);return}f=P(a,b);if(void 0===f)return;switch(g.toUpperCase()){case "PC":d.u=f%Kb;Ae(a.L,d.u);break;default:a.g("unknown register: "+
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function Vf(a,b,c){if("?"==c)a.g("trace commands:"),a.g("\tt [#]\ttrace # instructions"),a.g("\ttr [#]\ttrace # instructions with register updates"),a.g("\ttc [#]\ttrace # cycles"),a.g("note: bn [#] breaks after # instructions without updates");else{var d="t"!=b;c=se(a,c,null,!0)||1;var e=0;"tc"==b&&(e=c,c=1);a.ta=b;Wa(c,function(){return Gb(a,!0)&&sc(a,e,d,!1)},function(){a.ha&&a.ha.stop();I(a.F,-1);Gb(a,!1)})}}
function Cf(a,b,c,d){if(b=T(a,b,a.L)){void 0===d&&(d=1);var e=256;if(void 0!==c)if("l"==c.charAt(0))c=se(a,c.substr(1)),null!=c&&(d=c);else{d=T(a,c);if(!d||d.w<b.w)return;e=d.w-b.w;if(256<e){a.g("range too large");return}d=-1}for(c=0;0<e&&d--;){var g=Fb(a,!1)||a.N?a.B:null,f=null!=g?"cycles":null,h=Qf(a,b),k=b.w;if(h[0]&&d&&(!c&&d||0>h[0].indexOf("+"))){var m=h[0]+":";h[2]&&(m+=" "+h[2]);a.g(m)}h[3]&&(f=h[3],g=null);h=a.ba;m=b;h.w=m.w;h.ea=m.ea;h.ca=m.ca;a.g(Ef(a,b,f,g));e-=b.w-k;c++}}}
function Of(a,b,c){var d=!0;try{b.length&&"end"!=b?c||a.g(zf+b):(a.P&&(a.g("ended assemble at "+K(a,a.ba.w)),a.P=!1),b="");var e=b.charAt(0);if('"'==e||"'"==e)return!0;a.S=null;if(Eb(a)&&0<b.length){a.P&&(b="a "+K(a,a.ba.w)+" "+b);var g=!1,f=b.replace(/ +/g," ").split(" ");f[0]=f[0].toLowerCase();if(f&&f.length)for(var h=f[0],k=h.charAt(0),m=1;m<h.length;m++){var n=h.charAt(m);if("?"==k||"r"==k||"a">n||"z"<n){f[0]=h.substr(m);f.unshift(h.substr(0,m));break}}switch(f[0].charAt(0)){case "a":var r=T(a,
f[1],a.ba);if(r){var z=f[2];if(void 0==z)a.g("begin assemble at "+K(a,r.w)),a.P=!0,I(a.F);else{f.shift();f.shift();f.shift();var U,Se=f.join(""),y=-1,fc,wg=z.toUpperCase(),ed;for(ed in Ff){var Ja;fc=+ed;var Te=Ff[ed];switch(fc){case 32512:Ja=Gf;break;case 32256:Ja=Hf;break;case 29248:Ja=If;break;default:Ja=[""]}var Ue,fd;for(fd in Te){for(var Ve=Te[fd],Ka=0;Ka<Ja.length;Ka++){var gd=Ja[Ka];"S"==gd&&Ve>Jf&&(gd="B");if(wg==Kf[Ve]+gd){Ue=29248!=fc?Ka:(Ka&3)<<1|(Ka&12)<<2;y=(fd|Ue<<6)*Rb;break}}if(0<=
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K(a,J.w)):null!=J.w&&(Ee(a,J,yg),"p"==sa?a.Da(a.b,J):"r"==sa?a.Da(a.M,J):"w"==sa?a.Da(a.J,J):a.g("unknown breakpoint command: "+sa))}}}break;case "c":a.oa&&(a.oa.value="");break;case "d":a:{var Ma,Na=f[0],W=f[1],ia=f[2],zg=f[3];if("?"==W){var Oa="";for(Ma in G)a.qa[Ma]&&(Oa&&(Oa+=","),Oa+=Ma);Oa+=",state,symbols";a.g("dump memory commands:");a.g("\tdw [a] [n] dump n words at address a");a.g("\tds [a] [n] dump n words at address a as JSON");a.g("\tdh [p] [n] dump n instructions from history position p");
Oa.length&&a.g("dump extension commands:\n\t"+Oa)}else if("state"==W){var jd=Wf(a.F,!0);"console"==ia?console.log(jd):(a.oa&&(a.oa.value=""),jd&&a.g(jd))}else if("symbols"==W)for(var kd=0;kd<a.H.length;kd++){var ld=a.H[kd],Pa;for(Pa in ld.T)if("."!=Pa.charAt(0)){var Xe=ld.T[Pa].o;if(void 0!==Xe){var Ye=ld.T[Pa].l;Ye&&(Pa=Ye);a.g(K(a,Xe)+" "+Pa)}}}else{if("d"==Na){for(Ma in G)if(f[1]==Ma){var Ze=a.qa[Ma];Ze?(f.shift(),f.shift(),Ze(f)):a.g("no dump registered for "+W);break a}W||(Na=a.Ba||"dw")}else a.Ba=
Na;if("dh"==Na){var $e=W,af=ia,bf="",cf=0,R=a.R,X=a.f;if(X.length){var N=+$e||a.sa,jb=+af||10;isNaN(N)?N=jb:bf="more ";N>X.length&&(a.g("note: only "+X.length+" available"),N=X.length);R-=N;0>R&&(null==X[X.length-1].w?(N=R+N,R=0):R+=X.length);var md=[];"call"==af&&(jb=1E5,md=["CALL"]);for(void 0!==$e&&a.g(N+" instructions earlier:");0<jb&&R!=a.R;){var df=X[R++];if(null==df.w)break;var kb=Q(df.w),Ag=N--,ef=Ef(a,kb,"history",Ag);(!md.length||0<=ef.indexOf(md[0]))&&a.g(ef);kb.Ya&&(R+=kb.Ya,jb-=kb.Ya,
N-=kb.Ya);R>=X.length&&(R=0);a.sa=N;cf++;jb--}}cf||(a.g("no "+bf+"history available"),a.sa=void 0)}else{var Qa=T(a,W,a.ja);if(Qa){var ta=0,ff="ds"==Na;if(ia){if("l"==ia.charAt(0))ia=ia.substr(1)||zg,ta=se(a,ia);else{var gf=T(a,ia);gf&&(ta=gf.w-Qa.w)}0>ta&&(ta=0);65536<ta&&(ta=65536)}var Bg=a.ca;Qa.ca&&(a.ca=Qa.ca);for(var hf="db"==Na?1:2,nd=ta||32,od=1==hf?2:4,Cg=(nd+od-1)/od|0||1,ua="";Cg--&&0<nd;){for(var va="",jf="",W=K(a,Qa.w),kf=od;0<kf--&&0<nd--;){var hc=a.xa(Qa,1);ff?(va&&(va+=","),va+=hc):
(va+=Fe(hc),va+=" ");for(var lf=0;1==hf&&6>lf;lf++)jf+=String.fromCharCode((hc%64|0)+32),hc/=64}ua&&(ua+="\n");ua=ff?ua+(va+","):ua+(W+": "+va+(0>kf?" "+jf:""))}ua&&a.g(ua);a.ca=Bg}}}}break;case "e":if("else"==f[0])break;var mf,nf,of=f[0],pd=f[1];"e"==of||"ew"==of?(mf=a.xa,nf=a.eb):pd=null;if(null==pd)a.g("edit memory commands:"),a.g("\tew [a] [...] edit words at address a");else{var ic=T(a,pd,a.ja);if(ic)for(var jc=2;jc<f.length;jc++){var qd=P(a,f[jc]);if(void 0===qd){a.g("unknown value: "+f[jc]);
break}a.g("changing "+K(a,ic.w)+" from "+Fe(mf.call(a,ic))+" to "+Fe(qd));nf.call(a,ic,qd,1)}}break;case "g":a:{var pf=f[1],Dg=b;if(void 0!==pf){var rd=T(a,pf);if(!rd)break a;Ee(a,rd,Dg);a.Da(a.b,rd,!0)}Qe(a,!0,c)}break;case "h":a.j.K?(c||a.g("halting"),a.V()):Fb(a,!0)||c||a.g("already halted");break;case "i":if("if"==f[0]){var sd;var lb=b.substr(2),lb=Ca(lb);P(a,lb)?(c||a.g("true: "+lb),sd=!0):(c||a.g("false: "+lb),sd=!1);sd||(d=!1);break}g=!0;break;case "k":var Eg=f[0];if("?"==f[1])a.g("stack trace commands:"),
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A);break a}}if(ja)if("on"==f[2])a.X|=ja,Z=!0;else if("off"==f[2]&&(a.X&=~ja,Z=!1,1073741824==ja)){for(var vf=1E3<=a.O.length?a.O.length-1E3:0;vf<a.O.length;)a.g(a.O[vf++]);a.O=[]}}var Hg=0,ob="";for(Y in G)if(!A||A==Y){var Ig=!!(a.X&G[Y]);if(null===Z||Z==Ig)ob&&(ob+=","),++Hg%10||(ob+="\n\t"),"key"==Y&&(Y="keys"),ob+=Y}void 0===A&&a.g("message commands:\n\tm [category] [on|off]\tturn categories on/off");a.g((null!==Z?Z?"messages on: ":"messages off: ":"message categories:\n\t")+(ob||"none"));ye(a)}break;
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