kolibrios/programs/develop/oberon07/tools/RVM32I.ob07
maxcodehack 2f54c7de00 Update oberon07 from akron1's github
git-svn-id: svn://kolibrios.org@8097 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-10-13 07:58:51 +00:00

575 lines
20 KiB
Plaintext

(*
BSD 2-Clause License
Copyright (c) 2020, Anton Krotov
All rights reserved.
*)
(*
RVM32I executor and disassembler
for win32 only
Usage:
RVM32I.exe <program file> -run [program parameters]
RVM32I.exe <program file> -dis <output file>
*)
MODULE RVM32I;
IMPORT SYSTEM, File, Args, Out, API, HOST, RTL;
CONST
opSTOP = 0; opRET = 1; opENTER = 2; opNEG = 3; opNOT = 4; opABS = 5;
opXCHG = 6; opLDR8 = 7; opLDR16 = 8; opLDR32 = 9; opPUSH = 10; opPUSHC = 11;
opPOP = 12; opJGZ = 13; opJZ = 14; opJNZ = 15; opLLA = 16; opJGA = 17;
opJLA = 18; opJMP = 19; opCALL = 20; opCALLI = 21;
opMOV = 22; opMUL = 24; opADD = 26; opSUB = 28; opDIV = 30; opMOD = 32;
opSTR8 = 34; opSTR16 = 36; opSTR32 = 38; opINCL = 40; opEXCL = 42;
opIN = 44; opAND = 46; opOR = 48; opXOR = 50; opASR = 52; opLSR = 54;
opLSL = 56; opROR = 58; opMIN = 60; opMAX = 62; opEQ = 64; opNE = 66;
opLT = 68; opLE = 70; opGT = 72; opGE = 74; opBT = 76;
opMOVC = 23; opMULC = 25; opADDC = 27; opSUBC = 29; opDIVC = 31; opMODC = 33;
opSTR8C = 35; opSTR16C = 37; opSTR32C = 39; opINCLC = 41; opEXCLC = 43;
opINC = 45; opANDC = 47; opORC = 49; opXORC = 51; opASRC = 53; opLSRC = 55;
opLSLC = 57; opRORC = 59; opMINC = 61; opMAXC = 63; opEQC = 65; opNEC = 67;
opLTC = 69; opLEC = 71; opGTC = 73; opGEC = 75; opBTC = 77;
opLEA = 78; opLABEL = 79; opSYSCALL = 80;
ACC = 0; BP = 3; SP = 4;
Types = 0;
Strings = 1;
Global = 2;
Heap = 3;
Stack = 4;
TYPE
COMMAND = POINTER TO RECORD
op, param1, param2: INTEGER;
next: COMMAND
END;
VAR
R: ARRAY 32 OF INTEGER;
Sections: ARRAY 5 OF RECORD address: INTEGER; name: ARRAY 16 OF CHAR END;
first, last: COMMAND;
Labels: ARRAY 30000 OF COMMAND;
F: INTEGER; buf: ARRAY 65536 OF BYTE; cnt: INTEGER;
PROCEDURE syscall (ptr: INTEGER);
VAR
fn, p1, p2, p3, p4, r: INTEGER;
proc2: PROCEDURE (a, b: INTEGER): INTEGER;
proc3: PROCEDURE (a, b, c: INTEGER): INTEGER;
proc4: PROCEDURE (a, b, c, d: INTEGER): INTEGER;
BEGIN
SYSTEM.GET(ptr, fn);
SYSTEM.GET(ptr + 4, p1);
SYSTEM.GET(ptr + 8, p2);
SYSTEM.GET(ptr + 12, p3);
SYSTEM.GET(ptr + 16, p4);
CASE fn OF
| 0: HOST.ExitProcess(p1)
| 1: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.GetCurrentDirectory));
r := proc2(p1, p2)
| 2: SYSTEM.PUT(SYSTEM.ADR(proc3), SYSTEM.ADR(HOST.GetArg));
r := proc3(p1 + 2, p2, p3)
| 3: SYSTEM.PUT(SYSTEM.ADR(proc4), SYSTEM.ADR(HOST.FileRead));
SYSTEM.PUT(ptr, proc4(p1, p2, p3, p4))
| 4: SYSTEM.PUT(SYSTEM.ADR(proc4), SYSTEM.ADR(HOST.FileWrite));
SYSTEM.PUT(ptr, proc4(p1, p2, p3, p4))
| 5: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.FileCreate));
SYSTEM.PUT(ptr, proc2(p1, p2))
| 6: HOST.FileClose(p1)
| 7: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.FileOpen));
SYSTEM.PUT(ptr, proc2(p1, p2))
| 8: HOST.OutChar(CHR(p1))
| 9: SYSTEM.PUT(ptr, HOST.GetTickCount())
|10: SYSTEM.PUT(ptr, HOST.UnixTime())
|11: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.isRelative));
SYSTEM.PUT(ptr, proc2(p1, p2))
|12: SYSTEM.PUT(SYSTEM.ADR(proc2), SYSTEM.ADR(HOST.chmod));
r := proc2(p1, p2)
END
END syscall;
PROCEDURE exec;
VAR
cmd: COMMAND;
param1, param2: INTEGER;
temp: INTEGER;
BEGIN
cmd := first;
WHILE cmd # NIL DO
param1 := cmd.param1;
param2 := cmd.param2;
CASE cmd.op OF
|opSTOP: cmd := last
|opRET: SYSTEM.MOVE(R[SP], SYSTEM.ADR(cmd), 4); INC(R[SP], 4)
|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
|opPOP: SYSTEM.GET32(R[SP], R[param1]); INC(R[SP], 4)
|opNEG: R[param1] := -R[param1]
|opNOT: R[param1] := ORD(-BITS(R[param1]))
|opABS: R[param1] := ABS(R[param1])
|opXCHG: temp := R[param1]; R[param1] := R[param2]; R[param2] := temp
|opLDR8: SYSTEM.GET8(R[param2], R[param1]); R[param1] := R[param1] MOD 256;
|opLDR16: SYSTEM.GET16(R[param2], R[param1]); R[param1] := R[param1] MOD 65536;
|opLDR32: SYSTEM.GET32(R[param2], R[param1])
|opPUSH: DEC(R[SP], 4); SYSTEM.PUT32(R[SP], R[param1])
|opPUSHC: DEC(R[SP], 4); SYSTEM.PUT32(R[SP], param1)
|opJGZ: IF R[param1] > 0 THEN cmd := Labels[cmd.param2] END
|opJZ: IF R[param1] = 0 THEN cmd := Labels[cmd.param2] END
|opJNZ: IF R[param1] # 0 THEN cmd := Labels[cmd.param2] END
|opLLA: SYSTEM.MOVE(SYSTEM.ADR(Labels[cmd.param2]), SYSTEM.ADR(R[param1]), 4)
|opJGA: IF R[ACC] > param1 THEN cmd := Labels[cmd.param2] END
|opJLA: IF R[ACC] < param1 THEN cmd := Labels[cmd.param2] END
|opJMP: cmd := Labels[cmd.param1]
|opCALL: DEC(R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(cmd), R[SP], 4); cmd := Labels[cmd.param1]
|opCALLI: DEC(R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(cmd), R[SP], 4); SYSTEM.MOVE(SYSTEM.ADR(R[param1]), SYSTEM.ADR(cmd), 4)
|opMOV: R[param1] := R[param2]
|opMOVC: R[param1] := param2
|opMUL: R[param1] := R[param1] * R[param2]
|opMULC: R[param1] := R[param1] * param2
|opADD: INC(R[param1], R[param2])
|opADDC: INC(R[param1], param2)
|opSUB: DEC(R[param1], R[param2])
|opSUBC: DEC(R[param1], param2)
|opDIV: R[param1] := R[param1] DIV R[param2]
|opDIVC: R[param1] := R[param1] DIV param2
|opMOD: R[param1] := R[param1] MOD R[param2]
|opMODC: R[param1] := R[param1] MOD param2
|opSTR8: SYSTEM.PUT8(R[param1], R[param2])
|opSTR8C: SYSTEM.PUT8(R[param1], param2)
|opSTR16: SYSTEM.PUT16(R[param1], R[param2])
|opSTR16C: SYSTEM.PUT16(R[param1], param2)
|opSTR32: SYSTEM.PUT32(R[param1], R[param2])
|opSTR32C: SYSTEM.PUT32(R[param1], param2)
|opINCL: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) + {R[param2]}))
|opINCLC: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) + {param2}))
|opEXCL: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) - {R[param2]}))
|opEXCLC: SYSTEM.GET32(R[param1], temp); SYSTEM.PUT32(R[param1], ORD(BITS(temp) - {param2}))
|opIN: R[param1] := ORD(R[param1] IN BITS(R[param2]))
|opINC: R[param1] := ORD(R[param1] IN BITS(param2))
|opAND: R[param1] := ORD(BITS(R[param1]) * BITS(R[param2]))
|opANDC: R[param1] := ORD(BITS(R[param1]) * BITS(param2))
|opOR: R[param1] := ORD(BITS(R[param1]) + BITS(R[param2]))
|opORC: R[param1] := ORD(BITS(R[param1]) + BITS(param2))
|opXOR: R[param1] := ORD(BITS(R[param1]) / BITS(R[param2]))
|opXORC: R[param1] := ORD(BITS(R[param1]) / BITS(param2))
|opASR: R[param1] := ASR(R[param1], R[param2])
|opASRC: R[param1] := ASR(R[param1], param2)
|opLSR: R[param1] := LSR(R[param1], R[param2])
|opLSRC: R[param1] := LSR(R[param1], param2)
|opLSL: R[param1] := LSL(R[param1], R[param2])
|opLSLC: R[param1] := LSL(R[param1], param2)
|opROR: R[param1] := ROR(R[param1], R[param2])
|opRORC: R[param1] := ROR(R[param1], param2)
|opMIN: R[param1] := MIN(R[param1], R[param2])
|opMINC: R[param1] := MIN(R[param1], param2)
|opMAX: R[param1] := MAX(R[param1], R[param2])
|opMAXC: R[param1] := MAX(R[param1], param2)
|opEQ: R[param1] := ORD(R[param1] = R[param2])
|opEQC: R[param1] := ORD(R[param1] = param2)
|opNE: R[param1] := ORD(R[param1] # R[param2])
|opNEC: R[param1] := ORD(R[param1] # param2)
|opLT: R[param1] := ORD(R[param1] < R[param2])
|opLTC: R[param1] := ORD(R[param1] < param2)
|opLE: R[param1] := ORD(R[param1] <= R[param2])
|opLEC: R[param1] := ORD(R[param1] <= param2)
|opGT: R[param1] := ORD(R[param1] > R[param2])
|opGTC: R[param1] := ORD(R[param1] > param2)
|opGE: R[param1] := ORD(R[param1] >= R[param2])
|opGEC: R[param1] := ORD(R[param1] >= param2)
|opBT: R[param1] := ORD((R[param1] < R[param2]) & (R[param1] >= 0))
|opBTC: R[param1] := ORD((R[param1] < param2) & (R[param1] >= 0))
|opLEA: R[param1 MOD 256] := Sections[param1 DIV 256].address + param2
|opLABEL:
|opSYSCALL: syscall(R[param1])
END;
cmd := cmd.next
END
END exec;
PROCEDURE disasm (name: ARRAY OF CHAR; t_count, c_count, glob, heap: INTEGER);
VAR
cmd: COMMAND;
param1, param2, i, t, ptr: INTEGER;
b: BYTE;
PROCEDURE String (s: ARRAY OF CHAR);
VAR
n: INTEGER;
BEGIN
n := LENGTH(s);
IF n > LEN(buf) - cnt THEN
ASSERT(File.Write(F, SYSTEM.ADR(buf[0]), cnt) = cnt);
cnt := 0
END;
SYSTEM.MOVE(SYSTEM.ADR(s[0]), SYSTEM.ADR(buf[0]) + cnt, n);
INC(cnt, n)
END String;
PROCEDURE Ln;
BEGIN
String(0DX + 0AX)
END Ln;
PROCEDURE hexdgt (n: INTEGER): CHAR;
BEGIN
IF n < 10 THEN
INC(n, ORD("0"))
ELSE
INC(n, ORD("A") - 10)
END
RETURN CHR(n)
END hexdgt;
PROCEDURE Hex (x: INTEGER);
VAR
str: ARRAY 11 OF CHAR;
n: INTEGER;
BEGIN
n := 10;
str[10] := 0X;
WHILE n > 2 DO
str[n - 1] := hexdgt(x MOD 16);
x := x DIV 16;
DEC(n)
END;
str[1] := "x";
str[0] := "0";
String(str)
END Hex;
PROCEDURE Byte (x: BYTE);
VAR
str: ARRAY 5 OF CHAR;
BEGIN
str[4] := 0X;
str[3] := hexdgt(x MOD 16);
str[2] := hexdgt(x DIV 16);
str[1] := "x";
str[0] := "0";
String(str)
END Byte;
PROCEDURE Reg (n: INTEGER);
VAR
s: ARRAY 2 OF CHAR;
BEGIN
IF n = BP THEN
String("BP")
ELSIF n = SP THEN
String("SP")
ELSE
String("R");
s[1] := 0X;
IF n >= 10 THEN
s[0] := CHR(n DIV 10 + ORD("0"));
String(s)
END;
s[0] := CHR(n MOD 10 + ORD("0"));
String(s)
END
END Reg;
PROCEDURE Reg2 (r1, r2: INTEGER);
BEGIN
Reg(r1); String(", "); Reg(r2)
END Reg2;
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.