Added I/O instructions to PDP-10 disassembler
This commit is contained in:
Jeff Parsons
Jeff Parsons
parent
3b27f45b76
commit
10181fdc45
3 changed files with 239 additions and 192 deletions
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@ -1326,7 +1326,7 @@ class DebuggerPDP10 extends Debugger {
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*/
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if (!nState) {
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opCode = this.cpu.readWord(addr);
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if ((opCode / PDP10.OPCODE.FNSHIFT)|0 == PDP10.OPCODE.FNHALT && this.cpu.getLastPC() == addr) {
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if ((opCode >> PDP10.OPCODE.FNSHIFT) == PDP10.OPCODE.HALT && this.cpu.getLastPC() == addr) {
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addr = this.cpu.advancePC(1);
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}
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}
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@ -1354,7 +1354,7 @@ class DebuggerPDP10 extends Debugger {
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if (opCode < 0) {
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opCode = this.cpu.readWord(addr);
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}
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if ((opCode & 0xffff) != PDP10.OPCODE.INVALID) {
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if (opCode >= 0) {
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var dbgAddr = this.aInstructionHistory[this.iInstructionHistory];
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this.setAddr(dbgAddr, addr);
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// if (DEBUG) dbgAddr.cycleCount = cpu.getCycles();
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@ -1389,6 +1389,12 @@ class DebuggerPDP10 extends Debugger {
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opNum = opMasks[op & mask];
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if (opNum) {
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opMask = +mask;
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/*
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* When we extracted op from opCode using OPSHIFT, we included 6 additional bits
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* to help distinguish OPIO instructions from non-OPIO instructions. But for the
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* following tests, we don't need those bits, so we get rid of them now.
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*/
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op >>= 6;
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switch(opMask) {
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case PDP10.OPCODE.OPMODE:
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aModes = DebuggerPDP10.OPMODES;
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@ -1412,7 +1418,20 @@ class DebuggerPDP10 extends Debugger {
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if (sMode == "S" && opNum > DebuggerPDP10.OPS.MOVM) sMode = "B";
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var sOpName = opNames[opNum] + sMode;
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if (!opNum) sOperands = this.toStrWord(opCode);
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if (!opNum) {
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sOperands = this.toStrWord(opCode);
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} else {
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if (opMask == PDP10.OPCODE.OPIO) {
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sOperands = this.toStrBase((opCode / PDP10.OPCODE.IOSHIFT) & PDP10.OPCODE.IOMASK, -1);
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} else {
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sOperands = this.toStrBase((opCode >> PDP10.OPCODE.FNSHIFT) & PDP10.OPCODE.FNMASK, -1);
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}
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if (sOperands) sOperands += ',';
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if (opCode & PDP10.OPCODE.I_BIT) sOperands += '@';
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sOperands += this.toStrBase(opCode & PDP10.OPCODE.Y_MASK, -1);
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var i = (opCode >> PDP10.OPCODE.X_SHIFT) & PDP10.OPCODE.X_MASK;
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if (i) sOperands += '(' + this.toStrBase(i, -1) + ')';
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}
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var sOpCodes = "";
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var sLine = this.toStrAddr(dbgAddrOp) + ":";
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@ -3501,7 +3520,9 @@ if (DEBUGGER) {
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TD: 81, TS: 82, XCT: 83, JFFO: 84,
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JFCL: 85, JSR: 86, JSP: 87, JRST: 88,
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JSA: 89, JRA: 90, PUSHJ: 91, POPJ: 92,
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UUO: 93
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BLKI: 93, DATAI: 94, BLKO: 95, DATAO: 96,
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CONO: 97, CONI: 98, CONSZ: 99, CONSO: 100,
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UUO: 101
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};
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/*
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@ -3532,6 +3553,8 @@ if (DEBUGGER) {
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"TD", "TS", "XCT", "JFFO",
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"JFCL", "JSR", "JSP", "JRST",
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"JSA", "JRA", "PUSHJ", "POPJ",
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"BLKI", "DATAI", "BLKO", "DATAO",
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"CONO", "CONI", "CONSZ", "CONSO",
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"UUO"
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];
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@ -3544,7 +3567,7 @@ if (DEBUGGER) {
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];
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/*
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* PDP-10 opcodes are 36-bit values:
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* PDP-10 opcodes are 36-bit values, many of which use the following layout:
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*
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* 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
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@ -3565,114 +3588,130 @@ if (DEBUGGER) {
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* 2: MEMORY M AC E
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* 3: SELF S E E (and AC if A is non-zero)
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*
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* Bits 0-21 (I,X,Y) contain what we call a "reference address" (R), which is used to
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* Input-output instructions look like:
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*
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* 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
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* 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
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* 1 1 1 D D D D D D D O O O I X X X X Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
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*
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* Bits 0-22 (I,X,Y) contain what we call a "reference address" (R), which is used to
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* calculate the "effective address" (E). To determine E from R, we must extract I, X,
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* and Y from R, set E to Y, then add [X] to E if X is non-zero. If I is zero, then
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* we're done; otherwise, we must set set R to [E] and repeat the process.
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*/
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DebuggerPDP10.OPTABLE = {
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[PDP10.OPCODE.OPMASK]: {
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0o130: DebuggerPDP10.OPS.UFA,
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0o131: DebuggerPDP10.OPS.DFN,
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0o132: DebuggerPDP10.OPS.FSC,
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0o133: DebuggerPDP10.OPS.IBP,
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0o134: DebuggerPDP10.OPS.ILDB,
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0o135: DebuggerPDP10.OPS.LDB,
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0o136: DebuggerPDP10.OPS.IDPB,
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0o137: DebuggerPDP10.OPS.DPB,
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0o240: DebuggerPDP10.OPS.ASH,
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0o241: DebuggerPDP10.OPS.ROT,
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0o242: DebuggerPDP10.OPS.LSH,
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0o243: DebuggerPDP10.OPS.JFFO,
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0o244: DebuggerPDP10.OPS.ASHC,
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0o245: DebuggerPDP10.OPS.ROTC,
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0o246: DebuggerPDP10.OPS.LSHC,
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0o250: DebuggerPDP10.OPS.EXCH,
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0o251: DebuggerPDP10.OPS.BLT,
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0o252: DebuggerPDP10.OPS.AOBJP,
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0o253: DebuggerPDP10.OPS.AOBJN,
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0o254: DebuggerPDP10.OPS.JRST, // includes HALT, JRSTF, and JEN
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0o255: DebuggerPDP10.OPS.JFCL, // includes JOV, JCRY0, JCRY1, JCRY, and JFOV
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0o256: DebuggerPDP10.OPS.XCT,
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0o260: DebuggerPDP10.OPS.PUSHJ,
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0o261: DebuggerPDP10.OPS.PUSH,
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0o262: DebuggerPDP10.OPS.POP,
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0o263: DebuggerPDP10.OPS.POPJ,
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0o264: DebuggerPDP10.OPS.JSR,
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0o265: DebuggerPDP10.OPS.JSP,
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0o266: DebuggerPDP10.OPS.JSA,
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0o267: DebuggerPDP10.OPS.JRA,
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0o13000: DebuggerPDP10.OPS.UFA,
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0o13100: DebuggerPDP10.OPS.DFN,
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0o13200: DebuggerPDP10.OPS.FSC,
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0o13300: DebuggerPDP10.OPS.IBP,
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0o13400: DebuggerPDP10.OPS.ILDB,
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0o13500: DebuggerPDP10.OPS.LDB,
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0o13600: DebuggerPDP10.OPS.IDPB,
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0o13700: DebuggerPDP10.OPS.DPB,
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0o24000: DebuggerPDP10.OPS.ASH,
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0o24100: DebuggerPDP10.OPS.ROT,
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0o24200: DebuggerPDP10.OPS.LSH,
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0o24300: DebuggerPDP10.OPS.JFFO,
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0o24400: DebuggerPDP10.OPS.ASHC,
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0o24500: DebuggerPDP10.OPS.ROTC,
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0o24600: DebuggerPDP10.OPS.LSHC,
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0o25000: DebuggerPDP10.OPS.EXCH,
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0o25100: DebuggerPDP10.OPS.BLT,
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0o25200: DebuggerPDP10.OPS.AOBJP,
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0o25300: DebuggerPDP10.OPS.AOBJN,
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0o25400: DebuggerPDP10.OPS.JRST, // includes HALT, JRSTF, and JEN
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0o25500: DebuggerPDP10.OPS.JFCL, // includes JOV, JCRY0, JCRY1, JCRY, and JFOV
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0o25600: DebuggerPDP10.OPS.XCT,
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0o26000: DebuggerPDP10.OPS.PUSHJ,
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0o26100: DebuggerPDP10.OPS.PUSH,
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0o26200: DebuggerPDP10.OPS.POP,
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0o26300: DebuggerPDP10.OPS.POPJ,
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0o26400: DebuggerPDP10.OPS.JSR,
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0o26500: DebuggerPDP10.OPS.JSP,
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0o26600: DebuggerPDP10.OPS.JSA,
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0o26700: DebuggerPDP10.OPS.JRA,
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},
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[PDP10.OPCODE.OPMODE]: {
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0o140: DebuggerPDP10.OPS.FAD,
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0o144: DebuggerPDP10.OPS.FADR,
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0o150: DebuggerPDP10.OPS.FSB,
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0o154: DebuggerPDP10.OPS.FSBR,
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0o160: DebuggerPDP10.OPS.FMP,
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0o164: DebuggerPDP10.OPS.FMPR,
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0o170: DebuggerPDP10.OPS.FDV,
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0o174: DebuggerPDP10.OPS.FDVR,
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0o200: DebuggerPDP10.OPS.MOV,
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0o204: DebuggerPDP10.OPS.MOVS,
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0o210: DebuggerPDP10.OPS.MOVN,
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0o214: DebuggerPDP10.OPS.MOVM,
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0o220: DebuggerPDP10.OPS.IMUL,
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0o224: DebuggerPDP10.OPS.MUL,
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0o230: DebuggerPDP10.OPS.IDIV,
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0o234: DebuggerPDP10.OPS.DIV,
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0o270: DebuggerPDP10.OPS.ADD,
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0o274: DebuggerPDP10.OPS.SUB,
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0o400: DebuggerPDP10.OPS.SETZ,
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0o404: DebuggerPDP10.OPS.AND,
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0o410: DebuggerPDP10.OPS.ANDCA,
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0o414: DebuggerPDP10.OPS.SETM,
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0o420: DebuggerPDP10.OPS.ANDCM,
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0o424: DebuggerPDP10.OPS.SETA,
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0o430: DebuggerPDP10.OPS.XOR,
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0o434: DebuggerPDP10.OPS.IOR,
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0o440: DebuggerPDP10.OPS.ANDCB,
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0o444: DebuggerPDP10.OPS.EQV,
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0o450: DebuggerPDP10.OPS.SETCA,
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0o454: DebuggerPDP10.OPS.ORCA,
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0o460: DebuggerPDP10.OPS.SETCM,
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0o464: DebuggerPDP10.OPS.ORCM,
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0o470: DebuggerPDP10.OPS.ORCB,
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0o474: DebuggerPDP10.OPS.SETO,
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0o500: DebuggerPDP10.OPS.HLL,
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0o504: DebuggerPDP10.OPS.HRL,
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0o510: DebuggerPDP10.OPS.HLLZ,
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0o514: DebuggerPDP10.OPS.HRLZ,
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0o520: DebuggerPDP10.OPS.HLLO,
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0o524: DebuggerPDP10.OPS.HRLO,
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0o530: DebuggerPDP10.OPS.HLLE,
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0o534: DebuggerPDP10.OPS.HRLE,
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0o540: DebuggerPDP10.OPS.HRR,
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0o544: DebuggerPDP10.OPS.HLR,
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0o550: DebuggerPDP10.OPS.HRRZ,
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0o554: DebuggerPDP10.OPS.HLRZ,
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0o560: DebuggerPDP10.OPS.HRRO,
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0o564: DebuggerPDP10.OPS.HLRO,
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0o570: DebuggerPDP10.OPS.HRRE,
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0o574: DebuggerPDP10.OPS.HLRE
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0o14000: DebuggerPDP10.OPS.FAD,
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0o14400: DebuggerPDP10.OPS.FADR,
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0o15000: DebuggerPDP10.OPS.FSB,
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0o15400: DebuggerPDP10.OPS.FSBR,
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0o16000: DebuggerPDP10.OPS.FMP,
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0o16400: DebuggerPDP10.OPS.FMPR,
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0o17000: DebuggerPDP10.OPS.FDV,
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0o17400: DebuggerPDP10.OPS.FDVR,
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0o20000: DebuggerPDP10.OPS.MOV,
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0o20400: DebuggerPDP10.OPS.MOVS,
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0o21000: DebuggerPDP10.OPS.MOVN,
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0o21400: DebuggerPDP10.OPS.MOVM,
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0o22000: DebuggerPDP10.OPS.IMUL,
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0o22400: DebuggerPDP10.OPS.MUL,
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0o23000: DebuggerPDP10.OPS.IDIV,
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0o23400: DebuggerPDP10.OPS.DIV,
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0o27000: DebuggerPDP10.OPS.ADD,
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0o27400: DebuggerPDP10.OPS.SUB,
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0o40000: DebuggerPDP10.OPS.SETZ,
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0o40400: DebuggerPDP10.OPS.AND,
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0o41000: DebuggerPDP10.OPS.ANDCA,
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0o41400: DebuggerPDP10.OPS.SETM,
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0o42000: DebuggerPDP10.OPS.ANDCM,
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0o42400: DebuggerPDP10.OPS.SETA,
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0o43000: DebuggerPDP10.OPS.XOR,
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0o43400: DebuggerPDP10.OPS.IOR,
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0o44000: DebuggerPDP10.OPS.ANDCB,
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0o44400: DebuggerPDP10.OPS.EQV,
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0o45000: DebuggerPDP10.OPS.SETCA,
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0o45400: DebuggerPDP10.OPS.ORCA,
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0o46000: DebuggerPDP10.OPS.SETCM,
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0o46400: DebuggerPDP10.OPS.ORCM,
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0o47000: DebuggerPDP10.OPS.ORCB,
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0o47400: DebuggerPDP10.OPS.SETO,
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0o50000: DebuggerPDP10.OPS.HLL,
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0o50400: DebuggerPDP10.OPS.HRL,
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0o51000: DebuggerPDP10.OPS.HLLZ,
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0o51400: DebuggerPDP10.OPS.HRLZ,
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0o52000: DebuggerPDP10.OPS.HLLO,
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0o52400: DebuggerPDP10.OPS.HRLO,
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0o53000: DebuggerPDP10.OPS.HLLE,
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0o53400: DebuggerPDP10.OPS.HRLE,
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0o54000: DebuggerPDP10.OPS.HRR,
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0o54400: DebuggerPDP10.OPS.HLR,
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0o55000: DebuggerPDP10.OPS.HRRZ,
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0o55400: DebuggerPDP10.OPS.HLRZ,
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0o56000: DebuggerPDP10.OPS.HRRO,
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0o56400: DebuggerPDP10.OPS.HLRO,
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0o57000: DebuggerPDP10.OPS.HRRE,
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0o57400: DebuggerPDP10.OPS.HLRE
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},
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[PDP10.OPCODE.OPCOMP]: {
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0o300: DebuggerPDP10.OPS.CAI,
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0o310: DebuggerPDP10.OPS.CA,
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0o320: DebuggerPDP10.OPS.JUMP,
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0o330: DebuggerPDP10.OPS.SKIP,
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0o340: DebuggerPDP10.OPS.AOJ,
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0o350: DebuggerPDP10.OPS.AOS,
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0o360: DebuggerPDP10.OPS.SOJ,
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0o370: DebuggerPDP10.OPS.SOS,
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0o30000: DebuggerPDP10.OPS.CAI,
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0o31000: DebuggerPDP10.OPS.CA,
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0o32000: DebuggerPDP10.OPS.JUMP,
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0o33000: DebuggerPDP10.OPS.SKIP,
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0o34000: DebuggerPDP10.OPS.AOJ,
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0o35000: DebuggerPDP10.OPS.AOS,
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0o36000: DebuggerPDP10.OPS.SOJ,
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0o37000: DebuggerPDP10.OPS.SOS,
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},
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[PDP10.OPCODE.OPTEST]: {
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0o600: DebuggerPDP10.OPS.TR,
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0o601: DebuggerPDP10.OPS.TL,
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0o610: DebuggerPDP10.OPS.TD,
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0o611: DebuggerPDP10.OPS.TS,
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0o60000: DebuggerPDP10.OPS.TR,
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0o60100: DebuggerPDP10.OPS.TL,
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0o61000: DebuggerPDP10.OPS.TD,
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0o61100: DebuggerPDP10.OPS.TS,
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},
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[PDP10.OPCODE.OPIO]: {
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0o70000: DebuggerPDP10.OPS.BLKI,
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0o70004: DebuggerPDP10.OPS.DATAI,
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0o70010: DebuggerPDP10.OPS.BLKO,
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0o70014: DebuggerPDP10.OPS.DATAO,
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0o70020: DebuggerPDP10.OPS.CONO,
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0o70024: DebuggerPDP10.OPS.CONI,
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0o70030: DebuggerPDP10.OPS.CONSZ,
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0o70034: DebuggerPDP10.OPS.CONSO
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},
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[PDP10.OPCODE.OPUUO]: {
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0o000: DebuggerPDP10.OPS.UUO
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0o00000: DebuggerPDP10.OPS.UUO
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}
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};
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@ -104,15 +104,22 @@ var PDP10 = {
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* Opcode definitions
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*/
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OPCODE: {
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OPMASK: 0o777, // operation mask
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OPMODE: 0o774, // operation with mode
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OPCOMP: 0o770, // operation with compare
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OPTEST: 0o611, // operation with test
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OPUUO: 0o700, // unimplemented user operation (UUO) mask
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OPSHIFT: Math.pow(2, 27), // operation shift
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FNSHIFT: Math.pow(2, 23), // function shift
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FNHALT: 0o5304, // function code for HALT
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INVALID: 0o777777777777 // TODO: Resolve
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OPMASK: 0o77700, // operation mask
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OPMODE: 0o77400, // operation with mode
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OPCOMP: 0o77000, // operation with compare
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OPTEST: 0o71100, // operation with test
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OPIO: 0o70034, // input-output instructions
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OPUUO: 0o70000, // unimplemented user operation (UUO) mask
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OPSHIFT: Math.pow(2, 21), // operation shift
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FNSHIFT: 23, // accumulator/function shift
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FNMASK: 0o17, // accumulator/function mask (after shift)
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IOSHIFT: Math.pow(2, 26), // input-output device code shift
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IOMASK: 0o177, // input-output device code mask (after shift)
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Y_MASK: 0o777777,
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X_SHIFT: 18,
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X_MASK: 0o17,
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I_BIT: 0o20000000,
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HALT: 0o5304 // operation code for HALT
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},
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/*
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