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disasm.svh
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disasm.svh
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// -*- mode: Verilog; fill-column: 90 -*-
//
// PDP-10 disassembler, for debugging
//
// 2013-02-02 dab initial version
// This is not a standalone file but expected to be included at just the right place in APR
reg [6*8:0] opcodes[0:9'o677];
reg [6*8:0] io_opcodes[0:7];
initial begin
opcodes[9'o0] = "UUO00 ";
opcodes[9'o1] = "LUUO01";
opcodes[9'o2] = "LUUO02";
opcodes[9'o3] = "LUUO03";
opcodes[9'o4] = "LUUO04";
opcodes[9'o5] = "LUUO05";
opcodes[9'o6] = "LUUO06";
opcodes[9'o7] = "LUUO07";
opcodes[9'o10] = "LUUO10";
opcodes[9'o11] = "LUUO11";
opcodes[9'o12] = "LUUO12";
opcodes[9'o13] = "LUUO13";
opcodes[9'o14] = "LUUO14";
opcodes[9'o15] = "LUUO15";
opcodes[9'o16] = "LUUO16";
opcodes[9'o17] = "LUUO17";
opcodes[9'o20] = "LUUO20";
opcodes[9'o21] = "LUUO21";
opcodes[9'o22] = "LUUO22";
opcodes[9'o23] = "LUUO23";
opcodes[9'o24] = "LUUO24";
opcodes[9'o25] = "LUUO25";
opcodes[9'o26] = "LUUO26";
opcodes[9'o27] = "LUUO27";
opcodes[9'o30] = "LUUO30";
opcodes[9'o31] = "LUUO31";
opcodes[9'o32] = "LUUO32";
opcodes[9'o33] = "LUUO33";
opcodes[9'o34] = "LUUO34";
opcodes[9'o35] = "LUUO35";
opcodes[9'o36] = "LUUO36";
opcodes[9'o37] = "LUUO37";
opcodes[9'o40] = "CALL ";
opcodes[9'o41] = "INITI ";
opcodes[9'o42] = "MUUO42";
opcodes[9'o43] = "MUUO43";
opcodes[9'o44] = "MUUO44";
opcodes[9'o45] = "MUUO45";
opcodes[9'o46] = "MUUO46";
opcodes[9'o47] = "CALLI ";
opcodes[9'o50] = "OPEN ";
opcodes[9'o51] = "TTCALL";
opcodes[9'o52] = "MUUO52";
opcodes[9'o53] = "MUUO53";
opcodes[9'o54] = "MUUO54";
opcodes[9'o55] = "RENAME";
opcodes[9'o56] = "IN ";
opcodes[9'o57] = "OUT ";
opcodes[9'o60] = "SETSTS";
opcodes[9'o61] = "STATO ";
opcodes[9'o62] = "STATUS";
opcodes[9'o63] = "GETSTS";
opcodes[9'o64] = "INBUF ";
opcodes[9'o65] = "OUTBUF";
opcodes[9'o66] = "INPUT ";
opcodes[9'o67] = "OUTPUT";
opcodes[9'o70] = "CLOSE ";
opcodes[9'o71] = "RELEAS";
opcodes[9'o72] = "MTAPE ";
opcodes[9'o73] = "UGETF ";
opcodes[9'o74] = "USETI ";
opcodes[9'o75] = "USETO ";
opcodes[9'o76] = "LOOKUP";
opcodes[9'o77] = "ENTER ";
// Floating Point, Byte Manipulation, Other
opcodes[9'o100] = "UJEN ";
opcodes[9'o101] = "UNK101";
opcodes[9'o102] = "GFAD ";
opcodes[9'o103] = "GFSB ";
opcodes[9'o104] = "JSYS ";
opcodes[9'o105] = "ADJSP ";
opcodes[9'o106] = "GFMP ";
opcodes[9'o107] = "GFDV ";
opcodes[9'o110] = "DFAD ";
opcodes[9'o111] = "DFSB ";
opcodes[9'o112] = "DFMP ";
opcodes[9'o113] = "DFDV ";
opcodes[9'o114] = "DADD ";
opcodes[9'o115] = "DSUB ";
opcodes[9'o116] = "DMUL ";
opcodes[9'o117] = "DDIV ";
opcodes[9'o120] = "DMOVE ";
opcodes[9'o121] = "DMOVN ";
opcodes[9'o122] = "FIX ";
opcodes[9'o123] = "EXTEND";
opcodes[9'o124] = "DMOVEM";
opcodes[9'o125] = "DMOVNM";
opcodes[9'o126] = "FIXR ";
opcodes[9'o127] = "FLTR ";
opcodes[9'o130] = "UFA ";
opcodes[9'o131] = "DFN ";
opcodes[9'o132] = "FSC ";
opcodes[9'o133] = "IBP ";
opcodes[9'o134] = "ILDB ";
opcodes[9'o135] = "LDB ";
opcodes[9'o136] = "IDPB ";
opcodes[9'o137] = "DPB ";
opcodes[9'o140] = "FAD ";
opcodes[9'o141] = "FADL ";
opcodes[9'o142] = "FADM ";
opcodes[9'o143] = "FADB ";
opcodes[9'o144] = "FADR ";
opcodes[9'o145] = "FADRL ";
opcodes[9'o146] = "FADRM ";
opcodes[9'o147] = "FADRB ";
opcodes[9'o150] = "FSB ";
opcodes[9'o151] = "FSBL ";
opcodes[9'o152] = "FSBM ";
opcodes[9'o153] = "FSBB ";
opcodes[9'o154] = "FSBR ";
opcodes[9'o155] = "FSBRL ";
opcodes[9'o156] = "FSBRM ";
opcodes[9'o157] = "FSBRB ";
opcodes[9'o160] = "FMP ";
opcodes[9'o161] = "FMPL ";
opcodes[9'o162] = "FMPM ";
opcodes[9'o163] = "FMPB ";
opcodes[9'o164] = "FMPR ";
opcodes[9'o165] = "FMPRL ";
opcodes[9'o166] = "FMPRM ";
opcodes[9'o167] = "FMPRB ";
opcodes[9'o170] = "FDV ";
opcodes[9'o171] = "FDVL ";
opcodes[9'o172] = "FDVM ";
opcodes[9'o173] = "FDVB ";
opcodes[9'o174] = "FDVR ";
opcodes[9'o175] = "FDVRL ";
opcodes[9'o176] = "FDVRM ";
opcodes[9'o177] = "FDVRB ";
// Integer Arithmetic, Jump To Subroutine
opcodes[9'o200] = "MOVE ";
opcodes[9'o201] = "MOVEI ";
opcodes[9'o202] = "MOVEM ";
opcodes[9'o203] = "MOVES ";
opcodes[9'o204] = "MOVS ";
opcodes[9'o205] = "MOVSI ";
opcodes[9'o206] = "MOVSM ";
opcodes[9'o207] = "MOVSS ";
opcodes[9'o210] = "MOVN ";
opcodes[9'o211] = "MOVNI ";
opcodes[9'o212] = "MOVNM ";
opcodes[9'o213] = "MOVNS ";
opcodes[9'o214] = "MOVM ";
opcodes[9'o215] = "MOVMI ";
opcodes[9'o216] = "MOVMM ";
opcodes[9'o217] = "MOVMS ";
opcodes[9'o220] = "IMUL ";
opcodes[9'o221] = "IMULI ";
opcodes[9'o222] = "IMULM ";
opcodes[9'o223] = "IMULB ";
opcodes[9'o224] = "MUL ";
opcodes[9'o225] = "MULI ";
opcodes[9'o226] = "MULM ";
opcodes[9'o227] = "MULB ";
opcodes[9'o230] = "IDIV ";
opcodes[9'o231] = "IDIVI ";
opcodes[9'o232] = "IDIVM ";
opcodes[9'o233] = "IDIVB ";
opcodes[9'o234] = "DIV ";
opcodes[9'o235] = "DIVI ";
opcodes[9'o236] = "DIVM ";
opcodes[9'o237] = "DIVB ";
opcodes[9'o240] = "ASH ";
opcodes[9'o241] = "ROT ";
opcodes[9'o242] = "LSH ";
opcodes[9'o243] = "JFFO ";
opcodes[9'o244] = "ASHC ";
opcodes[9'o245] = "ROTC ";
opcodes[9'o246] = "LSHC ";
opcodes[9'o247] = "CIRC ";
opcodes[9'o250] = "EXCH ";
opcodes[9'o251] = "BLT ";
opcodes[9'o252] = "AOBJP ";
opcodes[9'o253] = "AOBJN ";
opcodes[9'o254] = "JRST ";
opcodes[9'o255] = "JFCL ";
opcodes[9'o256] = "XCT ";
opcodes[9'o257] = "MAP ";
opcodes[9'o260] = "PUSHJ ";
opcodes[9'o261] = "PUSH ";
opcodes[9'o262] = "POP ";
opcodes[9'o263] = "POPJ ";
opcodes[9'o264] = "JSR ";
opcodes[9'o265] = "JSP ";
opcodes[9'o266] = "JSA ";
opcodes[9'o267] = "JRA ";
opcodes[9'o270] = "ADD ";
opcodes[9'o271] = "ADDI ";
opcodes[9'o272] = "ADDM ";
opcodes[9'o273] = "ADDB ";
opcodes[9'o274] = "SUB ";
opcodes[9'o275] = "SUBI ";
opcodes[9'o276] = "SUBM ";
opcodes[9'o277] = "SUBB ";
// Hop, Skip, and Jump (codes 3x0 do not skip or jump)
opcodes[9'o300] = "CAI ";
opcodes[9'o301] = "CAIL ";
opcodes[9'o302] = "CAIE ";
opcodes[9'o303] = "CAILE ";
opcodes[9'o304] = "CAIA ";
opcodes[9'o305] = "CAIGE ";
opcodes[9'o306] = "CAIN ";
opcodes[9'o307] = "CAIG ";
opcodes[9'o310] = "CAM ";
opcodes[9'o311] = "CAML ";
opcodes[9'o312] = "CAME ";
opcodes[9'o313] = "CAMLE ";
opcodes[9'o314] = "CAMA ";
opcodes[9'o315] = "CAMGE ";
opcodes[9'o316] = "CAMN ";
opcodes[9'o317] = "CAMG ";
opcodes[9'o320] = "JUMP ";
opcodes[9'o321] = "JUMPL ";
opcodes[9'o322] = "JUMPE ";
opcodes[9'o323] = "JUMPLE";
opcodes[9'o324] = "JUMPA ";
opcodes[9'o325] = "JUMPGE";
opcodes[9'o326] = "JUMPN ";
opcodes[9'o327] = "JUMPG ";
opcodes[9'o330] = "SKIP ";
opcodes[9'o331] = "SKIPL ";
opcodes[9'o332] = "SKIPE ";
opcodes[9'o333] = "SKIPLE";
opcodes[9'o334] = "SKIPA ";
opcodes[9'o335] = "SKIPGE";
opcodes[9'o336] = "SKIPN ";
opcodes[9'o337] = "SKIPG ";
opcodes[9'o340] = "AOJ ";
opcodes[9'o341] = "AOJL ";
opcodes[9'o342] = "AOJE ";
opcodes[9'o343] = "AOJLE ";
opcodes[9'o344] = "AOJA ";
opcodes[9'o345] = "AOJGE ";
opcodes[9'o346] = "AOJN ";
opcodes[9'o347] = "AOJG ";
opcodes[9'o350] = "AOS ";
opcodes[9'o351] = "AOSL ";
opcodes[9'o352] = "AOSE ";
opcodes[9'o353] = "AOSLE ";
opcodes[9'o354] = "AOSA ";
opcodes[9'o355] = "AOSGE ";
opcodes[9'o356] = "AOSN ";
opcodes[9'o357] = "AOSG ";
opcodes[9'o360] = "SOJ ";
opcodes[9'o361] = "SOJL ";
opcodes[9'o362] = "SOJE ";
opcodes[9'o363] = "SOJLE ";
opcodes[9'o364] = "SOJA ";
opcodes[9'o365] = "SOJGE ";
opcodes[9'o366] = "SOJN ";
opcodes[9'o367] = "SOJG ";
opcodes[9'o370] = "SOS ";
opcodes[9'o371] = "SOSL ";
opcodes[9'o372] = "SOSE ";
opcodes[9'o373] = "SOSLE ";
opcodes[9'o374] = "SOSA ";
opcodes[9'o375] = "SOSGE ";
opcodes[9'o376] = "SOSN ";
opcodes[9'o377] = "SOSG ";
// Two-argument Logical Operations
opcodes[9'o400] = "SETZ ";
opcodes[9'o401] = "SETZI ";
opcodes[9'o402] = "SETZM ";
opcodes[9'o403] = "SETZB ";
opcodes[9'o404] = "AND ";
opcodes[9'o405] = "ANDI ";
opcodes[9'o406] = "ANDM ";
opcodes[9'o407] = "ANDB ";
opcodes[9'o410] = "ANDCA ";
opcodes[9'o411] = "ANDCAI";
opcodes[9'o412] = "ANDCAM";
opcodes[9'o413] = "ANDCAB";
opcodes[9'o414] = "SETM ";
opcodes[9'o415] = "SETMI ";
opcodes[9'o416] = "SETMM ";
opcodes[9'o417] = "SETMB ";
opcodes[9'o420] = "ANDCM ";
opcodes[9'o421] = "ANDCMI";
opcodes[9'o422] = "ANDCMM";
opcodes[9'o423] = "ANDCMB";
opcodes[9'o424] = "SETA ";
opcodes[9'o425] = "SETAI ";
opcodes[9'o426] = "SETAM ";
opcodes[9'o427] = "SETAB ";
opcodes[9'o430] = "XOR ";
opcodes[9'o431] = "XORI ";
opcodes[9'o432] = "XORM ";
opcodes[9'o433] = "XORB ";
opcodes[9'o434] = "OR ";
opcodes[9'o435] = "ORI ";
opcodes[9'o436] = "ORM ";
opcodes[9'o437] = "ORB ";
opcodes[9'o440] = "ANDCB ";
opcodes[9'o441] = "ANDCBI";
opcodes[9'o442] = "ANDCBM";
opcodes[9'o443] = "ANDCBB";
opcodes[9'o444] = "EQV ";
opcodes[9'o445] = "EQVI ";
opcodes[9'o446] = "EQVM ";
opcodes[9'o447] = "EQVB ";
opcodes[9'o450] = "SETCA ";
opcodes[9'o451] = "SETCAI";
opcodes[9'o452] = "SETCAM";
opcodes[9'o453] = "SETCAB";
opcodes[9'o454] = "ORCA ";
opcodes[9'o455] = "ORCAI ";
opcodes[9'o456] = "ORCAM ";
opcodes[9'o457] = "ORCAB ";
opcodes[9'o460] = "SETCM ";
opcodes[9'o461] = "SETCMI";
opcodes[9'o462] = "SETCMM";
opcodes[9'o463] = "SETCMB";
opcodes[9'o464] = "ORCM ";
opcodes[9'o465] = "ORCMI ";
opcodes[9'o466] = "ORCMM ";
opcodes[9'o467] = "ORCMB ";
opcodes[9'o470] = "ORCB ";
opcodes[9'o471] = "ORCBI ";
opcodes[9'o472] = "ORCBM ";
opcodes[9'o473] = "ORCBB ";
opcodes[9'o474] = "SETO ";
opcodes[9'o475] = "SETOI ";
opcodes[9'o476] = "SETOM ";
opcodes[9'o477] = "SETOB ";
// Half Word {Left,Right} to {Left,Right} with {nochange,Zero,Ones,Extend}, {ac,Immediate,Memory,Self}
opcodes[9'o500] = "HLL ";
opcodes[9'o501] = "HLLI ";
opcodes[9'o502] = "HLLM ";
opcodes[9'o503] = "HLLS ";
opcodes[9'o504] = "HRL ";
opcodes[9'o505] = "HRLI ";
opcodes[9'o506] = "HRLM ";
opcodes[9'o507] = "HRLS ";
opcodes[9'o510] = "HLLZ ";
opcodes[9'o511] = "HLLZI ";
opcodes[9'o512] = "HLLZM ";
opcodes[9'o513] = "HLLZS ";
opcodes[9'o514] = "HRLZ ";
opcodes[9'o515] = "HRLZI ";
opcodes[9'o516] = "HRLZM ";
opcodes[9'o517] = "HRLZS ";
opcodes[9'o520] = "HLLO ";
opcodes[9'o521] = "HLLOI ";
opcodes[9'o522] = "HLLOM ";
opcodes[9'o523] = "HLLOS ";
opcodes[9'o524] = "HRLO ";
opcodes[9'o525] = "HRLOI ";
opcodes[9'o526] = "HRLOM ";
opcodes[9'o527] = "HRLOS ";
opcodes[9'o530] = "HLLE ";
opcodes[9'o531] = "HLLEI ";
opcodes[9'o532] = "HLLEM ";
opcodes[9'o533] = "HLLES ";
opcodes[9'o534] = "HRLE ";
opcodes[9'o535] = "HRLEI ";
opcodes[9'o536] = "HRLEM ";
opcodes[9'o537] = "HRLES ";
opcodes[9'o540] = "HRR ";
opcodes[9'o541] = "HRRI ";
opcodes[9'o542] = "HRRM ";
opcodes[9'o543] = "HRRS ";
opcodes[9'o544] = "HLR ";
opcodes[9'o545] = "HLRI ";
opcodes[9'o546] = "HLRM ";
opcodes[9'o547] = "HLRS ";
opcodes[9'o550] = "HRRZ ";
opcodes[9'o551] = "HRRZI ";
opcodes[9'o552] = "HRRZM ";
opcodes[9'o553] = "HRRZS ";
opcodes[9'o554] = "HLRZ ";
opcodes[9'o555] = "HLRZI ";
opcodes[9'o556] = "HLRZM ";
opcodes[9'o557] = "HLRZS ";
opcodes[9'o560] = "HRRO ";
opcodes[9'o561] = "HRROI ";
opcodes[9'o562] = "HRROM ";
opcodes[9'o563] = "HRROS ";
opcodes[9'o564] = "HLRO ";
opcodes[9'o565] = "HLROI ";
opcodes[9'o566] = "HLROM ";
opcodes[9'o567] = "HLROS ";
opcodes[9'o570] = "HRRE ";
opcodes[9'o571] = "HRREI ";
opcodes[9'o572] = "HRREM ";
opcodes[9'o573] = "HRRES ";
opcodes[9'o574] = "HLRE ";
opcodes[9'o575] = "HLREI ";
opcodes[9'o576] = "HLREM ";
opcodes[9'o577] = "HLRES ";
// Test bits, {Right,Left,Direct,Swapped} with
// {Nochange,Zero,Complement,One} and skip if the masked bits were
// {noskip,Equal,Nonzero,Always}
opcodes[9'o600] = "TRN ";
opcodes[9'o601] = "TLN ";
opcodes[9'o602] = "TRNE ";
opcodes[9'o603] = "TLNE ";
opcodes[9'o604] = "TRNA ";
opcodes[9'o605] = "TLNA ";
opcodes[9'o606] = "TRNN ";
opcodes[9'o607] = "TLNN ";
opcodes[9'o610] = "TDN ";
opcodes[9'o611] = "TSN ";
opcodes[9'o612] = "TDNE ";
opcodes[9'o613] = "TSNE ";
opcodes[9'o614] = "TDNA ";
opcodes[9'o615] = "TSNA ";
opcodes[9'o616] = "TDNN ";
opcodes[9'o617] = "TSNN ";
opcodes[9'o620] = "TRZ ";
opcodes[9'o621] = "TLZ ";
opcodes[9'o622] = "TRZE ";
opcodes[9'o623] = "TLZE ";
opcodes[9'o624] = "TRZA ";
opcodes[9'o625] = "TLZA ";
opcodes[9'o626] = "TRZN ";
opcodes[9'o627] = "TLZN ";
opcodes[9'o630] = "TDZ ";
opcodes[9'o631] = "TSZ ";
opcodes[9'o632] = "TDZE ";
opcodes[9'o633] = "TSZE ";
opcodes[9'o634] = "TDZA ";
opcodes[9'o635] = "TSZA ";
opcodes[9'o636] = "TDZN ";
opcodes[9'o637] = "TSZN ";
opcodes[9'o640] = "TRC ";
opcodes[9'o641] = "TLC ";
opcodes[9'o642] = "TRCE ";
opcodes[9'o643] = "TLCE ";
opcodes[9'o644] = "TRCA ";
opcodes[9'o645] = "TLCA ";
opcodes[9'o646] = "TRCN ";
opcodes[9'o647] = "TLCN ";
opcodes[9'o650] = "TDC ";
opcodes[9'o651] = "TSC ";
opcodes[9'o652] = "TDCE ";
opcodes[9'o653] = "TSCE ";
opcodes[9'o654] = "TDCA ";
opcodes[9'o655] = "TSCA ";
opcodes[9'o656] = "TDCN ";
opcodes[9'o657] = "TSCN ";
opcodes[9'o660] = "TRO ";
opcodes[9'o661] = "TLO ";
opcodes[9'o662] = "TROE ";
opcodes[9'o663] = "TLOE ";
opcodes[9'o664] = "TROA ";
opcodes[9'o665] = "TLOA ";
opcodes[9'o666] = "TRON ";
opcodes[9'o667] = "TLON ";
opcodes[9'o670] = "TDO ";
opcodes[9'o671] = "TSO ";
opcodes[9'o672] = "TDOE ";
opcodes[9'o673] = "TSOE ";
opcodes[9'o674] = "TDOA ";
opcodes[9'o675] = "TSOA ";
opcodes[9'o676] = "TDON ";
opcodes[9'o677] = "TSON ";
io_opcodes[0] = "BLKI ";
io_opcodes[1] = "DATAI ";
io_opcodes[2] = "BLKO ";
io_opcodes[3] = "DATAO ";
io_opcodes[4] = "CONO ";
io_opcodes[5] = "CONI ";
io_opcodes[6] = "CONSZ ";
io_opcodes[7] = "CONSO ";
end // initial begin
function [23*8:1] disasm;
input [`WORD] inst;
reg [23*8:1] result;
reg [8:1] indirect;
reg [4*8:1] index;
reg [3*8:1] ac;
reg [0:6] dev;
reg [`HWORD] Y;
reg [0:3] A;
reg [0:3] X;
begin
Y = instY(inst);
A = instA(inst);
X = instX(inst);
indirect = instI(inst) ? "@" : " ";
if (instA(inst) == 0)
ac = " ";
else
$sformat(ac, "%o,", A);
if (instX(inst) == 0)
index = " ";
else
$sformat(index, "(%o)", X);
dev = instIODEV(inst)*4;
if (instOP(inst) < 9'o700) begin
$sformat(result, "%s %s%s%o%s", opcodes[instOP(inst)], ac, indirect, Y, index);
disasm = result;
end else begin
// I/O Instruction
$sformat(result, "%s %o,%s%o%s", io_opcodes[instIOOP(inst)], dev, indirect, Y, index);
disasm = result;
end
end
endfunction