575 lines
20 KiB
Plaintext
575 lines
20 KiB
Plaintext
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(*
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BSD 2-Clause License
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Copyright (c) 2020, Anton Krotov
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All rights reserved.
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*)
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(*
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RVM32I executor and disassembler
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for win32 only
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Usage:
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RVM32I.exe <program file> -run [program parameters]
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RVM32I.exe <program file> -dis <output file>
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*)
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MODULE RVM32I;
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IMPORT SYSTEM, File, Args, Out, API, HOST, RTL;
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CONST
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opSTOP = 0; opRET = 1; opENTER = 2; opNEG = 3; opNOT = 4; opABS = 5;
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opXCHG = 6; opLDR8 = 7; opLDR16 = 8; opLDR32 = 9; opPUSH = 10; opPUSHC = 11;
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opPOP = 12; opJGZ = 13; opJZ = 14; opJNZ = 15; opLLA = 16; opJGA = 17;
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opJLA = 18; opJMP = 19; opCALL = 20; opCALLI = 21;
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opMOV = 22; opMUL = 24; opADD = 26; opSUB = 28; opDIV = 30; opMOD = 32;
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opSTR8 = 34; opSTR16 = 36; opSTR32 = 38; opINCL = 40; opEXCL = 42;
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opIN = 44; opAND = 46; opOR = 48; opXOR = 50; opASR = 52; opLSR = 54;
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opLSL = 56; opROR = 58; opMIN = 60; opMAX = 62; opEQ = 64; opNE = 66;
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opLT = 68; opLE = 70; opGT = 72; opGE = 74; opBT = 76;
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opMOVC = 23; opMULC = 25; opADDC = 27; opSUBC = 29; opDIVC = 31; opMODC = 33;
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opSTR8C = 35; opSTR16C = 37; opSTR32C = 39; opINCLC = 41; opEXCLC = 43;
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opINC = 45; opANDC = 47; opORC = 49; opXORC = 51; opASRC = 53; opLSRC = 55;
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opLSLC = 57; opRORC = 59; opMINC = 61; opMAXC = 63; opEQC = 65; opNEC = 67;
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opLTC = 69; opLEC = 71; opGTC = 73; opGEC = 75; opBTC = 77;
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opLEA = 78; opLABEL = 79; opSYSCALL = 80;
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ACC = 0; BP = 3; SP = 4;
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Types = 0;
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Strings = 1;
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Global = 2;
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Heap = 3;
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Stack = 4;
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TYPE
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COMMAND = POINTER TO RECORD
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op, param1, param2: INTEGER;
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next: COMMAND
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END;
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VAR
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R: ARRAY 32 OF INTEGER;
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Sections: ARRAY 5 OF RECORD address: INTEGER; name: ARRAY 16 OF CHAR END;
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first, last: COMMAND;
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Labels: ARRAY 30000 OF COMMAND;
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F: INTEGER; buf: ARRAY 65536 OF BYTE; cnt: INTEGER;
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PROCEDURE syscall (ptr: INTEGER);
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VAR
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fn, p1, p2, p3, p4, r: INTEGER;
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proc2: PROCEDURE (a, b: INTEGER): INTEGER;
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proc3: PROCEDURE (a, b, c: INTEGER): INTEGER;
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proc4: PROCEDURE (a, b, c, d: INTEGER): INTEGER;
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BEGIN
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SYSTEM.GET(ptr, fn);
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SYSTEM.GET(ptr + 4, p1);
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SYSTEM.GET(ptr + 8, p2);
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SYSTEM.GET(ptr + 12, p3);
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SYSTEM.GET(ptr + 16, p4);
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CASE fn OF
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| 0: HOST.ExitProcess(p1)
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| 1: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.GetCurrentDirectory));
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r := proc2(p1, p2)
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| 2: SYSTEM.PUT(SYSTEM.ADR(proc3), SYSTEM.ADR(HOST.GetArg));
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r := proc3(p1 + 2, p2, p3)
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| 3: SYSTEM.PUT(SYSTEM.ADR(proc4), SYSTEM.ADR(HOST.FileRead));
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SYSTEM.PUT(ptr, proc4(p1, p2, p3, p4))
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| 4: SYSTEM.PUT(SYSTEM.ADR(proc4), SYSTEM.ADR(HOST.FileWrite));
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SYSTEM.PUT(ptr, proc4(p1, p2, p3, p4))
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| 5: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.FileCreate));
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SYSTEM.PUT(ptr, proc2(p1, p2))
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| 6: HOST.FileClose(p1)
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| 7: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.FileOpen));
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SYSTEM.PUT(ptr, proc2(p1, p2))
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| 8: HOST.OutChar(CHR(p1))
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| 9: SYSTEM.PUT(ptr, HOST.GetTickCount())
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|10: SYSTEM.PUT(ptr, HOST.UnixTime())
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|11: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.isRelative));
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SYSTEM.PUT(ptr, proc2(p1, p2))
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|12: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.chmod));
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r := proc2(p1, p2)
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END
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END syscall;
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PROCEDURE exec;
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VAR
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cmd: COMMAND;
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param1, param2: INTEGER;
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temp: INTEGER;
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BEGIN
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cmd := first;
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WHILE cmd # NIL DO
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param1 := cmd.param1;
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param2 := cmd.param2;
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CASE cmd.op OF
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|opSTOP: cmd := last
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|opRET: SYSTEM.MOVE(R[SP], SYSTEM.ADR(cmd), 4); INC(R[SP], 4)
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|opENTER: DEC(R[SP], 4); SYSTEM.PUT32(R[SP], R[BP]); R[BP] := R[SP]; WHILE param1 > 0 DO DEC(R[SP], 4); SYSTEM.PUT32(R[SP], 0); DEC(param1) END
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|opPOP: SYSTEM.GET32(R[SP], R[param1]); INC(R[SP], 4)
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|opNEG: R[param1] := -R[param1]
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|opNOT: R[param1] := ORD(-BITS(R[param1]))
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|opABS: R[param1] := ABS(R[param1])
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|opXCHG: temp := R[param1]; R[param1] := R[param2]; R[param2] := temp
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|opLDR8: SYSTEM.GET8(R[param2], R[param1]); R[param1] := R[param1] MOD 256;
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|opLDR16: SYSTEM.GET16(R[param2], R[param1]); R[param1] := R[param1] MOD 65536;
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|opLDR32: SYSTEM.GET32(R[param2], R[param1])
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|opPUSH: DEC(R[SP], 4); SYSTEM.PUT32(R[SP], R[param1])
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|opPUSHC: DEC(R[SP], 4); SYSTEM.PUT32(R[SP], param1)
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|opJGZ: IF R[param1] > 0 THEN cmd := Labels[cmd.param2] END
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|opJZ: IF R[param1] = 0 THEN cmd := Labels[cmd.param2] END
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|opJNZ: IF R[param1] # 0 THEN cmd := Labels[cmd.param2] END
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|opLLA: SYSTEM.MOVE(SYSTEM.ADR(Labels[cmd.param2]), SYSTEM.ADR(R[param1]), 4)
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|opJGA: IF R[ACC] > param1 THEN cmd := Labels[cmd.param2] END
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|opJLA: IF R[ACC] < param1 THEN cmd := Labels[cmd.param2] END
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|opJMP: cmd := Labels[cmd.param1]
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|opCALL: DEC(R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(cmd), R[SP], 4); cmd := Labels[cmd.param1]
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|opCALLI: DEC(R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(cmd), R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(R[param1]), SYSTEM.ADR(cmd), 4)
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|opMOV: R[param1] := R[param2]
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|opMOVC: R[param1] := param2
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|opMUL: R[param1] := R[param1] * R[param2]
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|opMULC: R[param1] := R[param1] * param2
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|opADD: INC(R[param1], R[param2])
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|opADDC: INC(R[param1], param2)
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|opSUB: DEC(R[param1], R[param2])
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|opSUBC: DEC(R[param1], param2)
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|opDIV: R[param1] := R[param1] DIV R[param2]
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|opDIVC: R[param1] := R[param1] DIV param2
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|opMOD: R[param1] := R[param1] MOD R[param2]
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|opMODC: R[param1] := R[param1] MOD param2
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|opSTR8: SYSTEM.PUT8(R[param1], R[param2])
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|opSTR8C: SYSTEM.PUT8(R[param1], param2)
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|opSTR16: SYSTEM.PUT16(R[param1], R[param2])
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|opSTR16C: SYSTEM.PUT16(R[param1], param2)
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|opSTR32: SYSTEM.PUT32(R[param1], R[param2])
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|opSTR32C: SYSTEM.PUT32(R[param1], param2)
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|opINCL: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) + {R[param2]}))
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|opINCLC: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) + {param2}))
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|opEXCL: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) - {R[param2]}))
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|opEXCLC: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) - {param2}))
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|opIN: R[param1] := ORD(R[param1] IN BITS(R[param2]))
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|opINC: R[param1] := ORD(R[param1] IN BITS(param2))
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|opAND: R[param1] := ORD(BITS(R[param1]) * BITS(R[param2]))
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|opANDC: R[param1] := ORD(BITS(R[param1]) * BITS(param2))
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|opOR: R[param1] := ORD(BITS(R[param1]) + BITS(R[param2]))
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|opORC: R[param1] := ORD(BITS(R[param1]) + BITS(param2))
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|opXOR: R[param1] := ORD(BITS(R[param1]) / BITS(R[param2]))
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|opXORC: R[param1] := ORD(BITS(R[param1]) / BITS(param2))
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|opASR: R[param1] := ASR(R[param1], R[param2])
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|opASRC: R[param1] := ASR(R[param1], param2)
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|opLSR: R[param1] := LSR(R[param1], R[param2])
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|opLSRC: R[param1] := LSR(R[param1], param2)
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|opLSL: R[param1] := LSL(R[param1], R[param2])
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|opLSLC: R[param1] := LSL(R[param1], param2)
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|opROR: R[param1] := ROR(R[param1], R[param2])
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|opRORC: R[param1] := ROR(R[param1], param2)
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|opMIN: R[param1] := MIN(R[param1], R[param2])
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|opMINC: R[param1] := MIN(R[param1], param2)
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|opMAX: R[param1] := MAX(R[param1], R[param2])
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|opMAXC: R[param1] := MAX(R[param1], param2)
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|opEQ: R[param1] := ORD(R[param1] = R[param2])
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|opEQC: R[param1] := ORD(R[param1] = param2)
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|opNE: R[param1] := ORD(R[param1] # R[param2])
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|opNEC: R[param1] := ORD(R[param1] # param2)
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|opLT: R[param1] := ORD(R[param1] < R[param2])
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|opLTC: R[param1] := ORD(R[param1] < param2)
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|opLE: R[param1] := ORD(R[param1] <= R[param2])
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|opLEC: R[param1] := ORD(R[param1] <= param2)
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|opGT: R[param1] := ORD(R[param1] > R[param2])
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|opGTC: R[param1] := ORD(R[param1] > param2)
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|opGE: R[param1] := ORD(R[param1] >= R[param2])
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|opGEC: R[param1] := ORD(R[param1] >= param2)
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|opBT: R[param1] := ORD((R[param1] < R[param2]) & (R[param1] >= 0))
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|opBTC: R[param1] := ORD((R[param1] < param2) & (R[param1] >= 0))
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|opLEA: R[param1 MOD 256] := Sections[param1 DIV 256].address + param2
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|opLABEL:
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|opSYSCALL: syscall(R[param1])
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END;
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cmd := cmd.next
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END
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END exec;
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PROCEDURE disasm (name: ARRAY OF CHAR; t_count, c_count, glob, heap: INTEGER);
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VAR
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cmd: COMMAND;
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param1, param2, i, t, ptr: INTEGER;
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b: BYTE;
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PROCEDURE String (s: ARRAY OF CHAR);
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VAR
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n: INTEGER;
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BEGIN
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n := LENGTH(s);
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IF n > LEN(buf) - cnt THEN
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ASSERT(File.Write(F, SYSTEM.ADR(buf[0]), cnt) = cnt);
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cnt := 0
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END;
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SYSTEM.MOVE(SYSTEM.ADR(s[0]), SYSTEM.ADR(buf[0]) + cnt, n);
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INC(cnt, n)
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END String;
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PROCEDURE Ln;
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BEGIN
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String(0DX + 0AX)
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END Ln;
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PROCEDURE hexdgt (n: INTEGER): CHAR;
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BEGIN
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IF n < 10 THEN
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INC(n, ORD("0"))
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ELSE
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INC(n, ORD("A") - 10)
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END
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RETURN CHR(n)
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END hexdgt;
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PROCEDURE Hex (x: INTEGER);
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VAR
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str: ARRAY 11 OF CHAR;
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n: INTEGER;
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BEGIN
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n := 10;
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str[10] := 0X;
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WHILE n > 2 DO
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str[n - 1] := hexdgt(x MOD 16);
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x := x DIV 16;
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DEC(n)
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END;
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str[1] := "x";
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str[0] := "0";
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String(str)
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END Hex;
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PROCEDURE Byte (x: BYTE);
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VAR
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str: ARRAY 5 OF CHAR;
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BEGIN
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str[4] := 0X;
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str[3] := hexdgt(x MOD 16);
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str[2] := hexdgt(x DIV 16);
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str[1] := "x";
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str[0] := "0";
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String(str)
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END Byte;
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PROCEDURE Reg (n: INTEGER);
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VAR
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s: ARRAY 2 OF CHAR;
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BEGIN
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IF n = BP THEN
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String("BP")
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ELSIF n = SP THEN
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String("SP")
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ELSE
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String("R");
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s[1] := 0X;
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IF n >= 10 THEN
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s[0] := CHR(n DIV 10 + ORD("0"));
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String(s)
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END;
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s[0] := CHR(n MOD 10 + ORD("0"));
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String(s)
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END
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END Reg;
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PROCEDURE Reg2 (r1, r2: INTEGER);
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BEGIN
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Reg(r1); String(", "); Reg(r2)
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END Reg2;
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PROCEDURE RegC (r, c: INTEGER);
|
||
|
|
BEGIN
|
||
|
|
Reg(r); String(", "); Hex(c)
|
||
|
|
END RegC;
|
||
|
|
|
||
|
|
|
||
|
|
PROCEDURE RegL (r, label: INTEGER);
|
||
|
|
BEGIN
|
||
|
|
Reg(r); String(", L"); Hex(label)
|
||
|
|
END RegL;
|
||
|
|
|
||
|
|
|
||
|
|
BEGIN
|
||
|
|
Sections[Types].name := "TYPES";
|
||
|
|
Sections[Strings].name := "STRINGS";
|
||
|
|
Sections[Global].name := "GLOBAL";
|
||
|
|
Sections[Heap].name := "HEAP";
|
||
|
|
Sections[Stack].name := "STACK";
|
||
|
|
|
||
|
|
F := File.Create(name);
|
||
|
|
ASSERT(F > 0);
|
||
|
|
cnt := 0;
|
||
|
|
String("CODE:"); Ln;
|
||
|
|
cmd := first;
|
||
|
|
WHILE cmd # NIL DO
|
||
|
|
param1 := cmd.param1;
|
||
|
|
param2 := cmd.param2;
|
||
|
|
CASE cmd.op OF
|
||
|
|
|opSTOP: String("STOP")
|
||
|
|
|opRET: String("RET")
|
||
|
|
|opENTER: String("ENTER "); Hex(param1)
|
||
|
|
|opPOP: String("POP "); Reg(param1)
|
||
|
|
|opNEG: String("NEG "); Reg(param1)
|
||
|
|
|opNOT: String("NOT "); Reg(param1)
|
||
|
|
|opABS: String("ABS "); Reg(param1)
|
||
|
|
|opXCHG: String("XCHG "); Reg2(param1, param2)
|
||
|
|
|opLDR8: String("LDR8 "); Reg2(param1, param2)
|
||
|
|
|opLDR16: String("LDR16 "); Reg2(param1, param2)
|
||
|
|
|opLDR32: String("LDR32 "); Reg2(param1, param2)
|
||
|
|
|opPUSH: String("PUSH "); Reg(param1)
|
||
|
|
|opPUSHC: String("PUSH "); Hex(param1)
|
||
|
|
|opJGZ: String("JGZ "); RegL(param1, param2)
|
||
|
|
|opJZ: String("JZ "); RegL(param1, param2)
|
||
|
|
|opJNZ: String("JNZ "); RegL(param1, param2)
|
||
|
|
|opLLA: String("LLA "); RegL(param1, param2)
|
||
|
|
|opJGA: String("JGA "); Hex(param1); String(", L"); Hex(param2)
|
||
|
|
|opJLA: String("JLA "); Hex(param1); String(", L"); Hex(param2)
|
||
|
|
|opJMP: String("JMP L"); Hex(param1)
|
||
|
|
|opCALL: String("CALL L"); Hex(param1)
|
||
|
|
|opCALLI: String("CALL "); Reg(param1)
|
||
|
|
|opMOV: String("MOV "); Reg2(param1, param2)
|
||
|
|
|opMOVC: String("MOV "); RegC(param1, param2)
|
||
|
|
|opMUL: String("MUL "); Reg2(param1, param2)
|
||
|
|
|opMULC: String("MUL "); RegC(param1, param2)
|
||
|
|
|opADD: String("ADD "); Reg2(param1, param2)
|
||
|
|
|opADDC: String("ADD "); RegC(param1, param2)
|
||
|
|
|opSUB: String("SUB "); Reg2(param1, param2)
|
||
|
|
|opSUBC: String("SUB "); RegC(param1, param2)
|
||
|
|
|opDIV: String("DIV "); Reg2(param1, param2)
|
||
|
|
|opDIVC: String("DIV "); RegC(param1, param2)
|
||
|
|
|opMOD: String("MOD "); Reg2(param1, param2)
|
||
|
|
|opMODC: String("MOD "); RegC(param1, param2)
|
||
|
|
|opSTR8: String("STR8 "); Reg2(param1, param2)
|
||
|
|
|opSTR8C: String("STR8 "); RegC(param1, param2)
|
||
|
|
|opSTR16: String("STR16 "); Reg2(param1, param2)
|
||
|
|
|opSTR16C: String("STR16 "); RegC(param1, param2)
|
||
|
|
|opSTR32: String("STR32 "); Reg2(param1, param2)
|
||
|
|
|opSTR32C: String("STR32 "); RegC(param1, param2)
|
||
|
|
|opINCL: String("INCL "); Reg2(param1, param2)
|
||
|
|
|opINCLC: String("INCL "); RegC(param1, param2)
|
||
|
|
|opEXCL: String("EXCL "); Reg2(param1, param2)
|
||
|
|
|opEXCLC: String("EXCL "); RegC(param1, param2)
|
||
|
|
|opIN: String("IN "); Reg2(param1, param2)
|
||
|
|
|opINC: String("IN "); RegC(param1, param2)
|
||
|
|
|opAND: String("AND "); Reg2(param1, param2)
|
||
|
|
|opANDC: String("AND "); RegC(param1, param2)
|
||
|
|
|opOR: String("OR "); Reg2(param1, param2)
|
||
|
|
|opORC: String("OR "); RegC(param1, param2)
|
||
|
|
|opXOR: String("XOR "); Reg2(param1, param2)
|
||
|
|
|opXORC: String("XOR "); RegC(param1, param2)
|
||
|
|
|opASR: String("ASR "); Reg2(param1, param2)
|
||
|
|
|opASRC: String("ASR "); RegC(param1, param2)
|
||
|
|
|opLSR: String("LSR "); Reg2(param1, param2)
|
||
|
|
|opLSRC: String("LSR "); RegC(param1, param2)
|
||
|
|
|opLSL: String("LSL "); Reg2(param1, param2)
|
||
|
|
|opLSLC: String("LSL "); RegC(param1, param2)
|
||
|
|
|opROR: String("ROR "); Reg2(param1, param2)
|
||
|
|
|opRORC: String("ROR "); RegC(param1, param2)
|
||
|
|
|opMIN: String("MIN "); Reg2(param1, param2)
|
||
|
|
|opMINC: String("MIN "); RegC(param1, param2)
|
||
|
|
|opMAX: String("MAX "); Reg2(param1, param2)
|
||
|
|
|opMAXC: String("MAX "); RegC(param1, param2)
|
||
|
|
|opEQ: String("EQ "); Reg2(param1, param2)
|
||
|
|
|opEQC: String("EQ "); RegC(param1, param2)
|
||
|
|
|opNE: String("NE "); Reg2(param1, param2)
|
||
|
|
|opNEC: String("NE "); RegC(param1, param2)
|
||
|
|
|opLT: String("LT "); Reg2(param1, param2)
|
||
|
|
|opLTC: String("LT "); RegC(param1, param2)
|
||
|
|
|opLE: String("LE "); Reg2(param1, param2)
|
||
|
|
|opLEC: String("LE "); RegC(param1, param2)
|
||
|
|
|opGT: String("GT "); Reg2(param1, param2)
|
||
|
|
|opGTC: String("GT "); RegC(param1, param2)
|
||
|
|
|opGE: String("GE "); Reg2(param1, param2)
|
||
|
|
|opGEC: String("GE "); RegC(param1, param2)
|
||
|
|
|opBT: String("BT "); Reg2(param1, param2)
|
||
|
|
|opBTC: String("BT "); RegC(param1, param2)
|
||
|
|
|opLEA: String("LEA "); Reg(param1 MOD 256); String(", "); String(Sections[param1 DIV 256].name); String(" + "); Hex(param2)
|
||
|
|
|opLABEL: String("L"); Hex(param1); String(":")
|
||
|
|
|opSYSCALL: String("SYSCALL "); Reg(param1)
|
||
|
|
END;
|
||
|
|
Ln;
|
||
|
|
cmd := cmd.next
|
||
|
|
END;
|
||
|
|
|
||
|
|
String("TYPES:");
|
||
|
|
ptr := Sections[Types].address;
|
||
|
|
FOR i := 0 TO t_count - 1 DO
|
||
|
|
IF i MOD 4 = 0 THEN
|
||
|
|
Ln; String("WORD ")
|
||
|
|
ELSE
|
||
|
|
String(", ")
|
||
|
|
END;
|
||
|
|
SYSTEM.GET32(ptr, t); INC(ptr, 4);
|
||
|
|
Hex(t)
|
||
|
|
END;
|
||
|
|
Ln;
|
||
|
|
|
||
|
|
String("STRINGS:");
|
||
|
|
ptr := Sections[Strings].address;
|
||
|
|
FOR i := 0 TO c_count - 1 DO
|
||
|
|
IF i MOD 8 = 0 THEN
|
||
|
|
Ln; String("BYTE ")
|
||
|
|
ELSE
|
||
|
|
String(", ")
|
||
|
|
END;
|
||
|
|
SYSTEM.GET8(ptr, b); INC(ptr);
|
||
|
|
Byte(b)
|
||
|
|
END;
|
||
|
|
Ln;
|
||
|
|
|
||
|
|
String("GLOBAL:"); Ln;
|
||
|
|
String("WORDS "); Hex(glob); Ln;
|
||
|
|
String("HEAP:"); Ln;
|
||
|
|
String("WORDS "); Hex(heap); Ln;
|
||
|
|
String("STACK:"); Ln;
|
||
|
|
String("WORDS 8"); Ln;
|
||
|
|
|
||
|
|
ASSERT(File.Write(F, SYSTEM.ADR(buf[0]), cnt) = cnt);
|
||
|
|
File.Close(F)
|
||
|
|
END disasm;
|
||
|
|
|
||
|
|
|
||
|
|
PROCEDURE GetCommand (adr: INTEGER): COMMAND;
|
||
|
|
VAR
|
||
|
|
op, param1, param2: INTEGER;
|
||
|
|
res: COMMAND;
|
||
|
|
|
||
|
|
BEGIN
|
||
|
|
op := 0; param1 := 0; param2 := 0;
|
||
|
|
SYSTEM.GET32(adr, op);
|
||
|
|
SYSTEM.GET32(adr + 4, param1);
|
||
|
|
SYSTEM.GET32(adr + 8, param2);
|
||
|
|
NEW(res);
|
||
|
|
res.op := op;
|
||
|
|
res.param1 := param1;
|
||
|
|
res.param2 := param2;
|
||
|
|
res.next := NIL
|
||
|
|
|
||
|
|
RETURN res
|
||
|
|
END GetCommand;
|
||
|
|
|
||
|
|
|
||
|
|
PROCEDURE main;
|
||
|
|
VAR
|
||
|
|
name, param: ARRAY 1024 OF CHAR;
|
||
|
|
cmd: COMMAND;
|
||
|
|
file, fsize, n: INTEGER;
|
||
|
|
|
||
|
|
descr: ARRAY 12 OF INTEGER;
|
||
|
|
|
||
|
|
offTypes, offStrings, GlobalSize, HeapStackSize, DescrSize: INTEGER;
|
||
|
|
|
||
|
|
BEGIN
|
||
|
|
Out.Open;
|
||
|
|
Args.GetArg(1, name);
|
||
|
|
F := File.Open(name, File.OPEN_R);
|
||
|
|
IF F > 0 THEN
|
||
|
|
DescrSize := LEN(descr) * SYSTEM.SIZE(INTEGER);
|
||
|
|
fsize := File.Seek(F, 0, File.SEEK_END);
|
||
|
|
ASSERT(fsize > DescrSize);
|
||
|
|
file := API._NEW(fsize);
|
||
|
|
ASSERT(file # 0);
|
||
|
|
n := File.Seek(F, 0, File.SEEK_BEG);
|
||
|
|
ASSERT(fsize = File.Read(F, file, fsize));
|
||
|
|
File.Close(F);
|
||
|
|
|
||
|
|
SYSTEM.MOVE(file + fsize - DescrSize, SYSTEM.ADR(descr[0]), DescrSize);
|
||
|
|
offTypes := descr[0];
|
||
|
|
ASSERT(offTypes < fsize - DescrSize);
|
||
|
|
ASSERT(offTypes > 0);
|
||
|
|
ASSERT(offTypes MOD 12 = 0);
|
||
|
|
offStrings := descr[1];
|
||
|
|
ASSERT(offStrings < fsize - DescrSize);
|
||
|
|
ASSERT(offStrings > 0);
|
||
|
|
ASSERT(offStrings MOD 4 = 0);
|
||
|
|
ASSERT(offStrings > offTypes);
|
||
|
|
GlobalSize := descr[2];
|
||
|
|
ASSERT(GlobalSize > 0);
|
||
|
|
HeapStackSize := descr[3];
|
||
|
|
ASSERT(HeapStackSize > 0);
|
||
|
|
|
||
|
|
Sections[Types].address := API._NEW(offStrings - offTypes);
|
||
|
|
ASSERT(Sections[Types].address # 0);
|
||
|
|
SYSTEM.MOVE(file + offTypes, Sections[Types].address, offStrings - offTypes);
|
||
|
|
|
||
|
|
Sections[Strings].address := API._NEW(fsize - offStrings - DescrSize);
|
||
|
|
ASSERT(Sections[Strings].address # 0);
|
||
|
|
SYSTEM.MOVE(file + offStrings, Sections[Strings].address, fsize - offStrings - DescrSize);
|
||
|
|
|
||
|
|
Sections[Global].address := API._NEW(GlobalSize * 4);
|
||
|
|
ASSERT(Sections[Global].address # 0);
|
||
|
|
|
||
|
|
Sections[Heap].address := API._NEW(HeapStackSize * 4);
|
||
|
|
ASSERT(Sections[Heap].address # 0);
|
||
|
|
|
||
|
|
Sections[Stack].address := Sections[Heap].address + HeapStackSize * 4 - 32;
|
||
|
|
|
||
|
|
n := offTypes DIV 12;
|
||
|
|
first := GetCommand(file + offTypes - n * 12);
|
||
|
|
last := first;
|
||
|
|
DEC(n);
|
||
|
|
WHILE n > 0 DO
|
||
|
|
cmd := GetCommand(file + offTypes - n * 12);
|
||
|
|
IF cmd.op = opLABEL THEN
|
||
|
|
Labels[cmd.param1] := cmd
|
||
|
|
END;
|
||
|
|
last.next := cmd;
|
||
|
|
last := cmd;
|
||
|
|
DEC(n)
|
||
|
|
END;
|
||
|
|
file := API._DISPOSE(file);
|
||
|
|
Args.GetArg(2, param);
|
||
|
|
IF param = "-dis" THEN
|
||
|
|
Args.GetArg(3, name);
|
||
|
|
IF name # "" THEN
|
||
|
|
disasm(name, (offStrings - offTypes) DIV 4, fsize - offStrings - DescrSize, GlobalSize, HeapStackSize)
|
||
|
|
END
|
||
|
|
ELSIF param = "-run" THEN
|
||
|
|
exec
|
||
|
|
END
|
||
|
|
ELSE
|
||
|
|
Out.String("file not found"); Out.Ln
|
||
|
|
END
|
||
|
|
END main;
|
||
|
|
|
||
|
|
|
||
|
|
BEGIN
|
||
|
|
ASSERT(RTL.bit_depth = 32);
|
||
|
|
main
|
||
|
|
END RVM32I.
|