(*
BSD 2-Clause License
Copyright (c) 2018, 2019, Anton Krotov
All rights reserved.
*)
MODULE X86;
IMPORT CODE, REG, UTILS, LISTS, BIN, PE32, KOS, MSCOFF, ELF, mConst := CONSTANTS, MACHINE, CHL := CHUNKLISTS, PATHS;
CONST
eax = REG.R0; ecx = REG.R1; edx = REG.R2;
al = eax; cl = ecx; dl = edx; ah = 4;
ax = eax; cx = ecx; dx = edx;
esp = 4;
ebp = 5;
sete = 94H; setne = 95H; setl = 9CH; setge = 9DH; setle = 9EH; setg = 9FH; setc = 92H; setnc = 93H;
je = 84H; jne = 85H; jl = 8CH; jge = 8DH; jle = 8EH; jg = 8FH; jb = 82H; jnb = 83H;
CODECHUNK = 8;
TYPE
COMMAND = CODE.COMMAND;
ANYCODE = POINTER TO RECORD (LISTS.ITEM)
offset: INTEGER
END;
TCODE = POINTER TO RECORD (ANYCODE)
code: ARRAY CODECHUNK OF BYTE;
length: INTEGER
END;
LABEL = POINTER TO RECORD (ANYCODE)
label: INTEGER
END;
JUMP = POINTER TO RECORD (ANYCODE)
label, diff: INTEGER;
short: BOOLEAN
END;
JMP = POINTER TO RECORD (JUMP)
END;
JCC = POINTER TO RECORD (JUMP)
jmp: INTEGER
END;
CALL = POINTER TO RECORD (JUMP)
END;
RELOC = POINTER TO RECORD (ANYCODE)
op, value: INTEGER
END;
VAR
R: REG.REGS;
program: BIN.PROGRAM;
CodeList: LISTS.LIST;
PROCEDURE Byte (n: INTEGER): BYTE;
RETURN MACHINE.Byte(n, 0)
END Byte;
PROCEDURE Word (n: INTEGER): INTEGER;
RETURN MACHINE.Byte(n, 0) + MACHINE.Byte(n, 1) * 256
END Word;
PROCEDURE OutByte* (n: BYTE);
VAR
c: TCODE;
last: ANYCODE;
BEGIN
last := CodeList.last(ANYCODE);
IF (last IS TCODE) & (last(TCODE).length < CODECHUNK) THEN
c := last(TCODE);
c.code[c.length] := n;
INC(c.length)
ELSE
NEW(c);
c.code[0] := n;
c.length := 1;
LISTS.push(CodeList, c)
END
END OutByte;
PROCEDURE OutInt (n: INTEGER);
BEGIN
OutByte(MACHINE.Byte(n, 0));
OutByte(MACHINE.Byte(n, 1));
OutByte(MACHINE.Byte(n, 2));
OutByte(MACHINE.Byte(n, 3))
END OutInt;
PROCEDURE OutByte2 (a, b: BYTE);
BEGIN
OutByte(a);
OutByte(b)
END OutByte2;
PROCEDURE OutByte3 (a, b, c: BYTE);
BEGIN
OutByte(a);
OutByte(b);
OutByte(c)
END OutByte3;
PROCEDURE OutWord (n: INTEGER);
BEGIN
ASSERT((0 <= n) & (n <= 65535));
OutByte2(n MOD 256, n DIV 256)
END OutWord;
PROCEDURE isByte (n: INTEGER): BOOLEAN;
RETURN (-128 <= n) & (n <= 127)
END isByte;
PROCEDURE short (n: INTEGER): INTEGER;
RETURN 2 * ORD(isByte(n))
END short;
PROCEDURE long (n: INTEGER): INTEGER;
RETURN 40H * ORD(~isByte(n))
END long;
PROCEDURE OutIntByte (n: INTEGER);
BEGIN
IF isByte(n) THEN
OutByte(Byte(n))
ELSE
OutInt(n)
END
END OutIntByte;
PROCEDURE shift* (op, reg: INTEGER);
BEGIN
CASE op OF
|CODE.opASR, CODE.opASR1, CODE.opASR2: OutByte(0F8H + reg)
|CODE.opROR, CODE.opROR1, CODE.opROR2: OutByte(0C8H + reg)
|CODE.opLSL, CODE.opLSL1, CODE.opLSL2: OutByte(0E0H + reg)
|CODE.opLSR, CODE.opLSR1, CODE.opLSR2: OutByte(0E8H + reg)
END
END shift;
PROCEDURE mov (reg1, reg2: INTEGER);
BEGIN
OutByte2(89H, 0C0H + reg2 * 8 + reg1) // mov reg1, reg2
END mov;
PROCEDURE xchg (reg1, reg2: INTEGER);
VAR
regs: SET;
BEGIN
regs := {reg1, reg2};
IF regs = {eax, ecx} THEN
OutByte(91H) // xchg eax, ecx
ELSIF regs = {eax, edx} THEN
OutByte(92H) // xchg eax, edx
ELSIF regs = {ecx, edx} THEN
OutByte2(87H, 0D1H) // xchg ecx, edx
END
END xchg;
PROCEDURE pop (reg: INTEGER);
BEGIN
OutByte(58H + reg) // pop reg
END pop;
PROCEDURE push (reg: INTEGER);
BEGIN
OutByte(50H + reg) // push reg
END push;
PROCEDURE movrc (reg, n: INTEGER);
BEGIN
OutByte(0B8H + reg); // mov reg, n
OutInt(n)
END movrc;
PROCEDURE pushc (n: INTEGER);
BEGIN
OutByte(68H + short(n)); // push n
OutIntByte(n)
END pushc;
PROCEDURE test (reg: INTEGER);
BEGIN
OutByte2(85H, 0C0H + reg * 9) // test reg, reg
END test;
PROCEDURE neg (reg: INTEGER);
BEGIN
OutByte2(0F7H, 0D8H + reg) // neg reg
END neg;
PROCEDURE not (reg: INTEGER);
BEGIN
OutByte2(0F7H, 0D0H + reg) // not reg
END not;
PROCEDURE add (reg1, reg2: INTEGER);
BEGIN
OutByte2(01H, 0C0H + reg2 * 8 + reg1) // add reg1, reg2
END add;
PROCEDURE andrc (reg, n: INTEGER);
BEGIN
OutByte2(81H + short(n), 0E0H + reg); // and reg, n
OutIntByte(n)
END andrc;
PROCEDURE orrc (reg, n: INTEGER);
BEGIN
OutByte2(81H + short(n), 0C8H + reg); // or reg, n
OutIntByte(n)
END orrc;
PROCEDURE addrc (reg, n: INTEGER);
BEGIN
OutByte2(81H + short(n), 0C0H + reg); // add reg, n
OutIntByte(n)
END addrc;
PROCEDURE subrc (reg, n: INTEGER);
BEGIN
OutByte2(81H + short(n), 0E8H + reg); // sub reg, n
OutIntByte(n)
END subrc;
PROCEDURE cmprr (reg1, reg2: INTEGER);
BEGIN
OutByte2(39H, 0C0H + reg2 * 8 + reg1) // cmp reg1, reg2
END cmprr;
PROCEDURE cmprc (reg, n: INTEGER);
BEGIN
OutByte2(81H + short(n), 0F8H + reg); // cmp reg, n
OutIntByte(n)
END cmprc;
PROCEDURE setcc (cond, reg: INTEGER);
BEGIN
OutByte3(0FH, cond, 0C0H + reg) // setcc reg
END setcc;
PROCEDURE xor (reg1, reg2: INTEGER);
BEGIN
OutByte2(31H, 0C0H + reg2 * 8 + reg1) // xor reg1, reg2
END xor;
PROCEDURE drop;
BEGIN
REG.Drop(R)
END drop;
PROCEDURE log2* (x: INTEGER): INTEGER;
VAR
n: INTEGER;
BEGIN
ASSERT(x > 0);
n := 0;
WHILE ~ODD(x) DO
x := x DIV 2;
INC(n)
END;
IF x # 1 THEN
n := -1
END
RETURN n
END log2;
PROCEDURE cond* (op: INTEGER): INTEGER;
VAR
res: INTEGER;
BEGIN
CASE op OF
|CODE.opGT, CODE.opGTR, CODE.opLTL: res := jg
|CODE.opGE, CODE.opGER, CODE.opLEL: res := jge
|CODE.opLT, CODE.opLTR, CODE.opGTL: res := jl
|CODE.opLE, CODE.opLER, CODE.opGEL: res := jle
|CODE.opEQ, CODE.opEQR, CODE.opEQL: res := je
|CODE.opNE, CODE.opNER, CODE.opNEL: res := jne
END
RETURN res
END cond;
PROCEDURE inv1* (op: INTEGER): INTEGER;
BEGIN
IF ODD(op) THEN
DEC(op)
ELSE
INC(op)
END
RETURN op
END inv1;
PROCEDURE Reloc* (op, value: INTEGER);
VAR
reloc: RELOC;
BEGIN
NEW(reloc);
reloc.op := op;
reloc.value := value;
LISTS.push(CodeList, reloc)
END Reloc;
PROCEDURE jcc* (cc, label: INTEGER);
VAR
j: JCC;
BEGIN
NEW(j);
j.label := label;
j.jmp := cc;
j.short := FALSE;
LISTS.push(CodeList, j)
END jcc;
PROCEDURE jmp* (label: INTEGER);
VAR
j: JMP;
BEGIN
NEW(j);
j.label := label;
j.short := FALSE;
LISTS.push(CodeList, j)
END jmp;
PROCEDURE call* (label: INTEGER);
VAR
c: CALL;
BEGIN
NEW(c);
c.label := label;
c.short := TRUE;
LISTS.push(CodeList, c)
END call;
PROCEDURE Pic (reg, opcode, value: INTEGER);
BEGIN
OutByte(0E8H); OutInt(0); // call L
// L:
pop(reg);
OutByte2(081H, 0C0H + reg); // add reg, ...
Reloc(opcode, value)
END Pic;
PROCEDURE CallRTL (pic: BOOLEAN; proc: INTEGER);
VAR
label: INTEGER;
reg1: INTEGER;
BEGIN
label := CODE.codes.rtl[proc];
IF label < 0 THEN
label := -label;
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICIMP, label);
OutByte2(0FFH, 010H + reg1); // call dword[reg1]
drop
ELSE
OutByte2(0FFH, 015H); // call dword[label]
Reloc(BIN.RIMP, label)
END
ELSE
call(label)
END
END CallRTL;
PROCEDURE SetLabel* (label: INTEGER);
VAR
L: LABEL;
BEGIN
NEW(L);
L.label := label;
LISTS.push(CodeList, L)
END SetLabel;
PROCEDURE fixup*;
VAR
code: ANYCODE;
count, i: INTEGER;
shorted: BOOLEAN;
jump: JUMP;
BEGIN
REPEAT
shorted := FALSE;
count := 0;
code := CodeList.first(ANYCODE);
WHILE code # NIL DO
code.offset := count;
CASE code OF
|TCODE: INC(count, code.length)
|LABEL: BIN.SetLabel(program, code.label, count)
|JMP: IF code.short THEN INC(count, 2) ELSE INC(count, 5) END; code.offset := count
|JCC: IF code.short THEN INC(count, 2) ELSE INC(count, 6) END; code.offset := count
|CALL: INC(count, 5); code.offset := count
|RELOC: INC(count, 4)
END;
code := code.next(ANYCODE)
END;
code := CodeList.first(ANYCODE);
WHILE code # NIL DO
IF code IS JUMP THEN
jump := code(JUMP);
jump.diff := BIN.GetLabel(program, jump.label) - code.offset;
IF ~jump.short & isByte(jump.diff) THEN
jump.short := TRUE;
shorted := TRUE
END
END;
code := code.next(ANYCODE)
END
UNTIL ~shorted;
code := CodeList.first(ANYCODE);
WHILE code # NIL DO
CASE code OF
|TCODE:
FOR i := 0 TO code.length - 1 DO
BIN.PutCode(program, code.code[i])
END
|LABEL:
BIN.SetLabel(program, code.label, code.offset)
|JMP:
IF code.short THEN
BIN.PutCode(program, 0EBH);
BIN.PutCode(program, Byte(code.diff))
ELSE
BIN.PutCode(program, 0E9H);
BIN.PutCode32LE(program, code.diff)
END
|JCC:
IF code.short THEN
BIN.PutCode(program, code.jmp - 16);
BIN.PutCode(program, Byte(code.diff))
ELSE
BIN.PutCode(program, 0FH);
BIN.PutCode(program, code.jmp);
BIN.PutCode32LE(program, code.diff)
END
|CALL:
BIN.PutCode(program, 0E8H);
BIN.PutCode32LE(program, code.diff)
|RELOC:
BIN.PutReloc(program, code.op);
BIN.PutCode32LE(program, code.value)
END;
code := code.next(ANYCODE)
END
END fixup;
PROCEDURE UnOp (VAR reg: INTEGER);
BEGIN
REG.UnOp(R, reg)
END UnOp;
PROCEDURE BinOp (VAR reg1, reg2: INTEGER);
BEGIN
REG.BinOp(R, reg1, reg2)
END BinOp;
PROCEDURE PushAll (NumberOfParameters: INTEGER);
BEGIN
REG.PushAll(R);
R.pushed := R.pushed - NumberOfParameters
END PushAll;
PROCEDURE NewLabel (): INTEGER;
BEGIN
BIN.NewLabel(program)
RETURN CODE.NewLabel()
END NewLabel;
PROCEDURE GetRegA;
BEGIN
ASSERT(REG.GetReg(R, eax))
END GetRegA;
PROCEDURE translate (code: CODE.CODES; pic: BOOLEAN; stroffs: INTEGER);
VAR
cmd: COMMAND;
reg1, reg2: INTEGER;
n, a, b, label, cc: INTEGER;
param1, param2: INTEGER;
float: REAL;
BEGIN
cmd := code.commands.first(COMMAND);
WHILE cmd # NIL DO
param1 := cmd.param1;
param2 := cmd.param2;
CASE cmd.opcode OF
|CODE.opJMP:
jmp(param1)
|CODE.opCALL:
call(param1)
|CODE.opCALLI:
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICIMP, param1);
OutByte2(0FFH, 010H + reg1); // call dword[reg1]
drop
ELSE
OutByte2(0FFH, 015H); // call dword[L]
Reloc(BIN.RIMP, param1)
END
|CODE.opCALLP:
UnOp(reg1);
OutByte2(0FFH, 0D0H + reg1); // call reg1
drop;
ASSERT(R.top = -1)
|CODE.opPRECALL:
n := param2;
IF (param1 # 0) & (n # 0) THEN
subrc(esp, 8)
END;
WHILE n > 0 DO
subrc(esp, 8);
OutByte3(0DDH, 01CH, 024H); // fstp qword[esp]
DEC(n)
END;
PushAll(0)
|CODE.opALIGN16:
ASSERT(eax IN R.regs);
mov(eax, esp);
andrc(esp, -16);
n := (3 - param2 MOD 4) * 4;
IF n > 0 THEN
subrc(esp, n)
END;
push(eax)
|CODE.opRES:
ASSERT(R.top = -1);
GetRegA;
n := param2;
WHILE n > 0 DO
OutByte3(0DDH, 004H, 024H); // fld qword[esp]
addrc(esp, 8);
DEC(n)
END
|CODE.opRESF:
n := param2;
IF n > 0 THEN
OutByte3(0DDH, 5CH + long(n * 8), 24H);
OutIntByte(n * 8); // fstp qword[esp + n*8]
INC(n)
END;
WHILE n > 0 DO
OutByte3(0DDH, 004H, 024H); // fld qword[esp]
addrc(esp, 8);
DEC(n)
END
|CODE.opENTER:
ASSERT(R.top = -1);
SetLabel(param1);
push(ebp);
mov(ebp, esp);
n := param2;
IF n > 4 THEN
movrc(ecx, n);
pushc(0); // @@: push 0
OutByte2(0E2H, 0FCH) // loop @b
ELSE
WHILE n > 0 DO
pushc(0);
DEC(n)
END
END
|CODE.opLEAVE, CODE.opLEAVER, CODE.opLEAVEF:
IF cmd.opcode = CODE.opLEAVER THEN
UnOp(reg1);
IF reg1 # eax THEN
GetRegA;
ASSERT(REG.Exchange(R, reg1, eax));
drop
END;
drop
END;
ASSERT(R.top = -1);
mov(esp, ebp);
pop(ebp);
n := param2;
IF n > 0 THEN
n := n * 4;
OutByte(0C2H); OutWord(Word(n)) // ret n
ELSE
OutByte(0C3H) // ret
END
|CODE.opERRC:
pushc(param2)
|CODE.opPARAM:
n := param2;
IF n = 1 THEN
UnOp(reg1);
push(reg1);
drop
ELSE
ASSERT(R.top + 1 <= n);
PushAll(n)
END
|CODE.opCLEANUP:
n := param2 * 4;
IF n # 0 THEN
addrc(esp, n)
END
|CODE.opPOPSP:
pop(esp)
|CODE.opCONST:
reg1 := REG.GetAnyReg(R);
movrc(reg1, param2)
|CODE.opLABEL:
SetLabel(param2) // L:
|CODE.opNOP:
|CODE.opGADR:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICBSS, param2)
ELSE
OutByte(0B8H + reg1); // mov reg1, _bss + param2
Reloc(BIN.RBSS, param2)
END
|CODE.opLADR:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8DH, 45H + reg1 * 8 + long(n)); // lea reg1, dword[ebp + n]
OutIntByte(n)
|CODE.opVADR:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8BH, 45H + reg1 * 8 + long(n)); // mov reg1, dword[ebp + n]
OutIntByte(n)
|CODE.opSADR:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICDATA, stroffs + param2);
ELSE
OutByte(0B8H + reg1); // mov reg1, _data + stroffs + param2
Reloc(BIN.RDATA, stroffs + param2)
END
|CODE.opSAVEC:
UnOp(reg1);
OutByte2(0C7H, reg1); OutInt(param2); // mov dword[reg1], param2
drop
|CODE.opSAVE8C:
UnOp(reg1);
OutByte3(0C6H, reg1, Byte(param2)); // mov byte[reg1], param2
drop
|CODE.opSAVE16C:
UnOp(reg1);
OutByte3(66H, 0C7H, reg1); OutWord(Word(param2)); // mov word[reg1], param2
drop
|CODE.opVLOAD32:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8BH, 45H + reg1 * 8 + long(n)); // mov reg1, dword[ebp + n]
OutIntByte(n);
OutByte2(8BH, reg1 * 9) // mov reg1, dword[reg1]
|CODE.opGLOAD32:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICBSS, param2);
OutByte2(8BH, reg1 * 9) // mov reg1, dword[reg1]
ELSE
OutByte2(08BH, 05H + reg1 * 8); // mov reg1, dword[_bss + param2]
Reloc(BIN.RBSS, param2)
END
|CODE.opLLOAD32:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8BH, 45H + reg1 * 8 + long(n)); // mov reg1, dword[ebp + n]
OutIntByte(n)
|CODE.opLOAD32:
UnOp(reg1);
OutByte2(8BH, reg1 * 9) // mov reg1, dword[reg1]
|CODE.opVLOAD8:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8BH, 45H + reg1 * 8 + long(n)); // mov reg1, dword[ebp + n]
OutIntByte(n);
OutByte3(0FH, 0B6H, reg1 * 9) // movzx reg1, byte[reg1]
|CODE.opGLOAD8:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICBSS, param2);
OutByte3(0FH, 0B6H, reg1 * 9) // movzx reg1, byte[reg1]
ELSE
OutByte3(00FH, 0B6H, 05H + reg1 * 8); // movzx reg1, byte[_bss + param2]
Reloc(BIN.RBSS, param2)
END
|CODE.opLLOAD8:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte3(0FH, 0B6H, 45H + reg1 * 8 + long(n)); // movzx reg1, byte[ebp + n]
OutIntByte(n)
|CODE.opLOAD8:
UnOp(reg1);
OutByte3(0FH, 0B6H, reg1 * 9) // movzx reg1, byte[reg1]
|CODE.opVLOAD16:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8BH, 45H + reg1 * 8 + long(n)); // mov reg1, dword[ebp + n]
OutIntByte(n);
OutByte3(0FH, 0B7H, reg1 * 9) // movzx reg1, word[reg1]
|CODE.opGLOAD16:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICBSS, param2);
OutByte3(0FH, 0B7H, reg1 * 9) // movzx reg1, word[reg1]
ELSE
OutByte3(00FH, 0B7H, 05H + reg1 * 8); // movzx reg1, word[_bss + param2]
Reloc(BIN.RBSS, param2)
END
|CODE.opLLOAD16:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte3(0FH, 0B7H, 45H + reg1 * 8 + long(n)); // movzx reg1, word[ebp + n]
OutIntByte(n)
|CODE.opLOAD16:
UnOp(reg1);
OutByte3(0FH, 0B7H, reg1 * 9) // movzx reg1, word[reg1]
|CODE.opUMINUS:
UnOp(reg1);
neg(reg1)
|CODE.opADD:
BinOp(reg1, reg2);
add(reg1, reg2);
drop
|CODE.opADDL, CODE.opADDR:
IF param2 # 0 THEN
UnOp(reg1);
IF param2 = 1 THEN
OutByte(40H + reg1) // inc reg1
ELSIF param2 = -1 THEN
OutByte(48H + reg1) // dec reg1
ELSE
addrc(reg1, param2)
END
END
|CODE.opSUB:
BinOp(reg1, reg2);
OutByte2(29H, 0C0H + reg2 * 8 + reg1); // sub reg1, reg2
drop
|CODE.opSUBR, CODE.opSUBL:
UnOp(reg1);
n := param2;
IF n = 1 THEN
OutByte(48H + reg1) // dec reg1
ELSIF n = -1 THEN
OutByte(40H + reg1) // inc reg1
ELSIF n # 0 THEN
subrc(reg1, n)
END;
IF cmd.opcode = CODE.opSUBL THEN
neg(reg1)
END
|CODE.opMULC:
UnOp(reg1);
a := param2;
IF a > 1 THEN
n := log2(a)
ELSIF a < -1 THEN
n := log2(-a)
ELSE
n := -1
END;
IF a = 1 THEN
ELSIF a = -1 THEN
neg(reg1)
ELSIF a = 0 THEN
xor(reg1, reg1)
ELSE
IF n > 0 THEN
IF a < 0 THEN
neg(reg1)
END;
IF n # 1 THEN
OutByte3(0C1H, 0E0H + reg1, n) // shl reg1, n
ELSE
OutByte2(0D1H, 0E0H + reg1) // shl reg1, 1
END
ELSE
OutByte2(69H + short(a), 0C0H + reg1 * 9); // imul reg1, a
OutIntByte(a)
END
END
|CODE.opMUL:
BinOp(reg1, reg2);
OutByte3(0FH, 0AFH, 0C0H + reg1 * 8 + reg2); // imul reg1, reg2
drop
|CODE.opSAVE, CODE.opSAVE32:
BinOp(reg2, reg1);
OutByte2(89H, reg2 * 8 + reg1); // mov dword[reg1], reg2
drop;
drop
|CODE.opSAVE8:
BinOp(reg2, reg1);
OutByte2(88H, reg2 * 8 + reg1); // mov byte[reg1], reg2
drop;
drop
|CODE.opSAVE16:
BinOp(reg2, reg1);
OutByte3(66H, 89H, reg2 * 8 + reg1); // mov word[reg1], reg2
drop;
drop
|CODE.opSAVEP:
UnOp(reg1);
IF pic THEN
reg2 := REG.GetAnyReg(R);
Pic(reg2, BIN.PICCODE, param2);
OutByte2(089H, reg2 * 8 + reg1); // mov dword[reg1], reg2
drop
ELSE
OutByte2(0C7H, reg1); // mov dword[reg1], L
Reloc(BIN.RCODE, param2)
END;
drop
|CODE.opSAVEIP:
UnOp(reg1);
IF pic THEN
reg2 := REG.GetAnyReg(R);
Pic(reg2, BIN.PICIMP, param2);
OutByte2(0FFH, 30H + reg2); // push dword[reg2]
OutByte2(08FH, reg1); // pop dword[reg1]
drop
ELSE
OutByte2(0FFH, 035H); // push dword[L]
Reloc(BIN.RIMP, param2);
OutByte2(08FH, reg1) // pop dword[reg1]
END;
drop
|CODE.opPUSHP:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICCODE, param2)
ELSE
OutByte(0B8H + reg1); // mov reg1, L
Reloc(BIN.RCODE, param2)
END
|CODE.opPUSHIP:
reg1 := REG.GetAnyReg(R);
IF pic THEN
Pic(reg1, BIN.PICIMP, param2);
OutByte2(08BH, reg1 * 9) // mov reg1, dword[reg1]
ELSE
OutByte2(08BH, 05H + reg1 * 8); // mov reg1, dword[L]
Reloc(BIN.RIMP, param2)
END
|CODE.opNOT:
UnOp(reg1);
test(reg1);
setcc(sete, reg1);
andrc(reg1, 1)
|CODE.opORD:
UnOp(reg1);
test(reg1);
setcc(setne, reg1);
andrc(reg1, 1)
|CODE.opSBOOL:
BinOp(reg2, reg1);
test(reg2);
setcc(setne, reg2);
OutByte2(88H, reg2 * 8 + reg1); // mov byte[reg1], reg2
drop;
drop
|CODE.opSBOOLC:
UnOp(reg1);
OutByte3(0C6H, reg1, ORD(param2 # 0)); // mov byte[reg1], 0/1
drop
|CODE.opODD:
UnOp(reg1);
andrc(reg1, 1)
|CODE.opGTR, CODE.opLTL, CODE.opGER, CODE.opLEL,
CODE.opLER, CODE.opGEL, CODE.opLTR, CODE.opGTL,
CODE.opEQR, CODE.opEQL, CODE.opNER, CODE.opNEL:
UnOp(reg1);
IF param2 = 0 THEN
test(reg1)
ELSE
cmprc(reg1, param2)
END;
drop;
cc := cond(cmd.opcode);
IF cmd.next(COMMAND).opcode = CODE.opJE THEN
label := cmd.next(COMMAND).param1;
jcc(cc, label);
cmd := cmd.next(COMMAND)
ELSIF cmd.next(COMMAND).opcode = CODE.opJNE THEN
label := cmd.next(COMMAND).param1;
jcc(inv1(cc), label);
cmd := cmd.next(COMMAND)
ELSE
reg1 := REG.GetAnyReg(R);
setcc(cc + 16, reg1);
andrc(reg1, 1)
END
|CODE.opGT, CODE.opGE, CODE.opLT,
CODE.opLE, CODE.opEQ, CODE.opNE:
BinOp(reg1, reg2);
cmprr(reg1, reg2);
drop;
drop;
cc := cond(cmd.opcode);
IF cmd.next(COMMAND).opcode = CODE.opJE THEN
label := cmd.next(COMMAND).param1;
jcc(cc, label);
cmd := cmd.next(COMMAND)
ELSIF cmd.next(COMMAND).opcode = CODE.opJNE THEN
label := cmd.next(COMMAND).param1;
jcc(inv1(cc), label);
cmd := cmd.next(COMMAND)
ELSE
reg1 := REG.GetAnyReg(R);
setcc(cc + 16, reg1);
andrc(reg1, 1)
END
|CODE.opEQB, CODE.opNEB:
BinOp(reg1, reg2);
drop;
drop;
test(reg1);
OutByte2(74H, 5); // je @f
movrc(reg1, 1); // mov reg1, 1
// @@:
test(reg2);
OutByte2(74H, 5); // je @f
movrc(reg2, 1); // mov reg2, 1
// @@:
cmprr(reg1, reg2);
reg1 := REG.GetAnyReg(R);
IF cmd.opcode = CODE.opEQB THEN
setcc(sete, reg1)
ELSE
setcc(setne, reg1)
END;
andrc(reg1, 1)
|CODE.opACC:
IF (R.top # 0) OR (R.stk[0] # eax) THEN
PushAll(0);
GetRegA;
pop(eax);
DEC(R.pushed)
END
|CODE.opDROP:
UnOp(reg1);
drop
|CODE.opJNZ:
UnOp(reg1);
test(reg1);
jcc(jne, param1)
|CODE.opJZ:
UnOp(reg1);
test(reg1);
jcc(je, param1)
|CODE.opJE:
UnOp(reg1);
test(reg1);
jcc(jne, param1);
drop;
|CODE.opJNE:
UnOp(reg1);
test(reg1);
jcc(je, param1);
drop;
|CODE.opSWITCH:
UnOp(reg1);
IF param2 = 0 THEN
reg2 := eax
ELSE
reg2 := ecx
END;
IF reg1 # reg2 THEN
ASSERT(REG.GetReg(R, reg2));
ASSERT(REG.Exchange(R, reg1, reg2));
drop
END;
drop
|CODE.opENDSW:
|CODE.opCASEL:
cmprc(eax, param1);
jcc(jl, param2)
|CODE.opCASER:
cmprc(eax, param1);
jcc(jg, param2)
|CODE.opCASELR:
cmprc(eax, param1);
jcc(jl, param2);
jcc(jg, cmd.param3)
|CODE.opCODE:
OutByte(param2)
|CODE.opGET:
BinOp(reg1, reg2);
drop;
drop;
CASE param2 OF
|1:
OutByte2(8AH, reg1 * 9); // mov reg1, byte[reg1]
OutByte2(88H, reg1 * 8 + reg2) // mov byte[reg2], reg1
|2:
OutByte3(66H, 8BH, reg1 * 9); // mov reg1, word[reg1]
OutByte3(66H, 89H, reg1 * 8 + reg2) // mov word[reg2], reg1
|4:
OutByte2(8BH, reg1 * 9); // mov reg1, dword[reg1]
OutByte2(89H, reg1 * 8 + reg2) // mov dword[reg2], reg1
|8:
PushAll(0);
push(reg2);
push(reg1);
pushc(8);
CallRTL(pic, CODE._move)
END
|CODE.opSAVES:
UnOp(reg1);
drop;
PushAll(0);
push(reg1);
IF pic THEN
Pic(reg1, BIN.PICDATA, stroffs + param2);
push(reg1)
ELSE
OutByte(068H); // push _data + stroffs + param2
Reloc(BIN.RDATA, stroffs + param2);
END;
pushc(param1);
CallRTL(pic, CODE._move)
|CODE.opCHKBYTE:
BinOp(reg1, reg2);
cmprc(reg1, 256);
jcc(jb, param1)
|CODE.opCHKIDX:
UnOp(reg1);
cmprc(reg1, param2);
jcc(jb, param1)
|CODE.opCHKIDX2:
BinOp(reg1, reg2);
IF param2 # -1 THEN
cmprr(reg2, reg1);
mov(reg1, reg2);
drop;
jcc(jb, param1)
ELSE
INCL(R.regs, reg1);
DEC(R.top);
R.stk[R.top] := reg2
END
|CODE.opLEN:
n := param2;
UnOp(reg1);
drop;
EXCL(R.regs, reg1);
WHILE n > 0 DO
UnOp(reg2);
drop;
DEC(n)
END;
INCL(R.regs, reg1);
ASSERT(REG.GetReg(R, reg1))
|CODE.opINC1:
UnOp(reg1);
OutByte2(0FFH, reg1); // inc dword[reg1]
drop
|CODE.opDEC1:
UnOp(reg1);
OutByte2(0FFH, 8 + reg1); // dec dword[reg1]
drop
|CODE.opINCC:
UnOp(reg1);
n := param2;
OutByte2(81H + short(n), reg1); OutIntByte(n); // add dword[reg1], n
drop
|CODE.opDECC:
UnOp(reg1);
n := param2;
OutByte2(81H + short(n), 28H + reg1); OutIntByte(n); // sub dword[reg1], n
drop
|CODE.opINC:
BinOp(reg1, reg2);
OutByte2(01H, reg1 * 8 + reg2); // add dword[reg2], reg1
drop;
drop
|CODE.opDEC:
BinOp(reg1, reg2);
OutByte2(29H, reg1 * 8 + reg2); // sub dword[reg2], reg1
drop;
drop
|CODE.opINC1B:
UnOp(reg1);
OutByte2(0FEH, reg1); // inc byte[reg1]
drop
|CODE.opDEC1B:
UnOp(reg1);
OutByte2(0FEH, 08H + reg1); // dec byte[reg1]
drop
|CODE.opINCCB:
UnOp(reg1);
OutByte3(80H, reg1, Byte(param2)); // add byte[reg1], n
drop
|CODE.opDECCB:
UnOp(reg1);
OutByte3(80H, 28H + reg1, Byte(param2)); // sub byte[reg1], n
drop
|CODE.opINCB, CODE.opDECB:
BinOp(reg1, reg2);
IF cmd.opcode = CODE.opINCB THEN
OutByte2(00H, reg1 * 8 + reg2) // add byte[reg2], reg1
ELSE
OutByte2(28H, reg1 * 8 + reg2) // sub byte[reg2], reg1
END;
drop;
drop
|CODE.opMULS:
BinOp(reg1, reg2);
OutByte2(21H, 0C0H + reg2 * 8 + reg1); // and reg1, reg2
drop
|CODE.opMULSC:
UnOp(reg1);
andrc(reg1, param2)
|CODE.opDIVS:
BinOp(reg1, reg2);
xor(reg1, reg2);
drop
|CODE.opDIVSC:
UnOp(reg1);
OutByte2(81H + short(param2), 0F0H + reg1); // xor reg1, n
OutIntByte(param2)
|CODE.opADDS:
BinOp(reg1, reg2);
OutByte2(9H, 0C0H + reg2 * 8 + reg1); // or reg1, reg2
drop
|CODE.opSUBS:
BinOp(reg1, reg2);
not(reg2);
OutByte2(21H, 0C0H + reg2 * 8 + reg1); // and reg1, reg2
drop
|CODE.opADDSL, CODE.opADDSR:
UnOp(reg1);
orrc(reg1, param2)
|CODE.opSUBSL:
UnOp(reg1);
not(reg1);
andrc(reg1, param2)
|CODE.opSUBSR:
UnOp(reg1);
andrc(reg1, ORD(-BITS(param2)));
|CODE.opUMINS:
UnOp(reg1);
not(reg1)
|CODE.opLENGTH:
PushAll(2);
CallRTL(pic, CODE._length);
GetRegA
|CODE.opLENGTHW:
PushAll(2);
CallRTL(pic, CODE._lengthw);
GetRegA
|CODE.opCHR:
UnOp(reg1);
andrc(reg1, 255)
|CODE.opWCHR:
UnOp(reg1);
andrc(reg1, 65535)
|CODE.opASR, CODE.opROR, CODE.opLSL, CODE.opLSR:
UnOp(reg1);
IF reg1 # ecx THEN
ASSERT(REG.GetReg(R, ecx));
ASSERT(REG.Exchange(R, reg1, ecx));
drop
END;
BinOp(reg1, reg2);
ASSERT(reg2 = ecx);
OutByte(0D3H);
shift(cmd.opcode, reg1); // shift reg1, cl
drop
|CODE.opASR1, CODE.opROR1, CODE.opLSL1, CODE.opLSR1:
UnOp(reg1);
IF reg1 # ecx THEN
ASSERT(REG.GetReg(R, ecx));
ASSERT(REG.Exchange(R, reg1, ecx));
drop
END;
reg1 := REG.GetAnyReg(R);
movrc(reg1, param2);
BinOp(reg1, reg2);
ASSERT(reg1 = ecx);
OutByte(0D3H);
shift(cmd.opcode, reg2); // shift reg2, cl
drop;
drop;
ASSERT(REG.GetReg(R, reg2))
|CODE.opASR2, CODE.opROR2, CODE.opLSL2, CODE.opLSR2:
UnOp(reg1);
n := ORD(BITS(param2) * {0..4});
IF n # 1 THEN
OutByte(0C1H)
ELSE
OutByte(0D1H)
END;
shift(cmd.opcode, reg1); // shift reg1, n
IF n # 1 THEN
OutByte(n)
END
|CODE.opMIN:
BinOp(reg1, reg2);
cmprr(reg1, reg2);
OutByte2(07EH, 002H); // jle @f
mov(reg1, reg2); // mov reg1, reg2
// @@:
drop
|CODE.opMAX:
BinOp(reg1, reg2);
cmprr(reg1, reg2);
OutByte2(07DH, 002H); // jge @f
mov(reg1, reg2); // mov reg1, reg2
// @@:
drop
|CODE.opMINC:
UnOp(reg1);
cmprc(reg1, param2);
OutByte2(07EH, 005H); // jle @f
movrc(reg1, param2); // mov reg1, param2
// @@:
|CODE.opMAXC:
UnOp(reg1);
cmprc(reg1, param2);
OutByte2(07DH, 005H); // jge @f
movrc(reg1, param2); // mov reg1, param2
// @@:
|CODE.opIN:
label := NewLabel();
BinOp(reg1, reg2);
cmprc(reg1, 32);
OutByte2(72H, 4); // jb L
xor(reg1, reg1);
jmp(label);
//L:
OutByte3(0FH, 0A3H, 0C0H + reg2 + 8 * reg1); // bt reg2, reg1
setcc(setc, reg1);
andrc(reg1, 1);
SetLabel(label);
drop
|CODE.opINR:
label := NewLabel();
UnOp(reg1);
reg2 := REG.GetAnyReg(R);
cmprc(reg1, 32);
OutByte2(72H, 4); // jb L
xor(reg1, reg1);
jmp(label);
//L:
movrc(reg2, param2);
OutByte3(0FH, 0A3H, 0C0H + reg2 + 8 * reg1); // bt reg2, reg1
setcc(setc, reg1);
andrc(reg1, 1);
SetLabel(label);
drop
|CODE.opINL:
UnOp(reg1);
OutByte3(0FH, 0BAH, 0E0H + reg1); OutByte(param2); // bt reg1, param2
setcc(setc, reg1);
andrc(reg1, 1)
|CODE.opRSET:
PushAll(2);
CallRTL(pic, CODE._set);
GetRegA
|CODE.opRSETR:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._set);
GetRegA
|CODE.opRSETL:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._set2);
GetRegA
|CODE.opRSET1:
UnOp(reg1);
PushAll(1);
push(reg1);
CallRTL(pic, CODE._set);
GetRegA
|CODE.opINCL, CODE.opEXCL:
BinOp(reg1, reg2);
cmprc(reg1, 32);
OutByte2(73H, 03H); // jnb L
OutByte(0FH);
IF cmd.opcode = CODE.opINCL THEN
OutByte(0ABH) // bts dword[reg2], reg1
ELSE
OutByte(0B3H) // btr dword[reg2], reg1
END;
OutByte(reg2 + 8 * reg1);
//L:
drop;
drop
|CODE.opINCLC:
UnOp(reg1);
OutByte3(0FH, 0BAH, 28H + reg1); OutByte(param2); //bts dword[reg1],param2
drop
|CODE.opEXCLC:
UnOp(reg1);
OutByte3(0FH, 0BAH, 30H + reg1); OutByte(param2); //btr dword[reg1],param2
drop
|CODE.opDIV:
PushAll(2);
CallRTL(pic, CODE._div);
GetRegA
|CODE.opDIVR:
a := param2;
IF a > 1 THEN
n := log2(a)
ELSIF a < -1 THEN
n := log2(-a)
ELSE
n := -1
END;
IF a = 1 THEN
ELSIF a = -1 THEN
UnOp(reg1);
neg(reg1)
ELSE
IF n > 0 THEN
UnOp(reg1);
IF a < 0 THEN
reg2 := REG.GetAnyReg(R);
mov(reg2, reg1);
IF n # 1 THEN
OutByte3(0C1H, 0F8H + reg1, n) // sar reg1, n
ELSE
OutByte2(0D1H, 0F8H + reg1) // sar reg1, 1
END;
OutByte2(29H, 0C0H + reg2 * 8 + reg1); // sub reg1, reg2
drop
ELSE
IF n # 1 THEN
OutByte3(0C1H, 0F8H + reg1, n) // sar reg1, n
ELSE
OutByte2(0D1H, 0F8H + reg1) // sar reg1, 1
END
END
ELSE
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._div);
GetRegA
END
END
|CODE.opDIVL:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._div2);
GetRegA
|CODE.opMOD:
PushAll(2);
CallRTL(pic, CODE._mod);
GetRegA
|CODE.opMODR:
a := param2;
IF a > 1 THEN
n := log2(a)
ELSIF a < -1 THEN
n := log2(-a)
ELSE
n := -1
END;
IF ABS(a) = 1 THEN
UnOp(reg1);
xor(reg1, reg1)
ELSE
IF n > 0 THEN
UnOp(reg1);
andrc(reg1, ABS(a) - 1);
IF a < 0 THEN
test(reg1);
OutByte(74H); // je @f
IF isByte(a) THEN
OutByte(3)
ELSE
OutByte(6)
END;
addrc(reg1, a)
// @@:
END
ELSE
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._mod);
GetRegA
END
END
|CODE.opMODL:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._mod2);
GetRegA
|CODE.opERR:
CallRTL(pic, CODE._error)
|CODE.opABS:
UnOp(reg1);
test(reg1);
OutByte2(07DH, 002H); // jge @f
neg(reg1); // neg reg1
// @@:
|CODE.opCOPY:
PushAll(2);
pushc(param2);
CallRTL(pic, CODE._move2)
|CODE.opMOVE:
PushAll(3);
CallRTL(pic, CODE._move2)
|CODE.opCOPYA:
PushAll(4);
pushc(param2);
CallRTL(pic, CODE._arrcpy);
GetRegA
|CODE.opCOPYS:
PushAll(4);
pushc(param2);
CallRTL(pic, CODE._strcpy)
|CODE.opCOPYS2:
PushAll(4);
pushc(param2);
CallRTL(pic, CODE._strcpy2)
|CODE.opROT:
PushAll(0);
push(esp);
pushc(param2);
CallRTL(pic, CODE._rot)
|CODE.opNEW:
PushAll(1);
n := param2 + 8;
ASSERT(MACHINE.Align(n, 32));
pushc(n);
pushc(param1);
CallRTL(pic, CODE._new)
|CODE.opDISP:
PushAll(1);
CallRTL(pic, CODE._dispose)
|CODE.opEQS .. CODE.opGES:
PushAll(4);
pushc(cmd.opcode - CODE.opEQS);
CallRTL(pic, CODE._strcmp);
GetRegA
|CODE.opEQS2 .. CODE.opGES2:
PushAll(4);
pushc(cmd.opcode - CODE.opEQS2);
CallRTL(pic, CODE._strcmp2);
GetRegA
|CODE.opEQSW .. CODE.opGESW:
PushAll(4);
pushc(cmd.opcode - CODE.opEQSW);
CallRTL(pic, CODE._strcmpw);
GetRegA
|CODE.opEQSW2 .. CODE.opGESW2:
PushAll(4);
pushc(cmd.opcode - CODE.opEQSW2);
CallRTL(pic, CODE._strcmpw2);
GetRegA
|CODE.opEQP, CODE.opNEP, CODE.opEQIP, CODE.opNEIP:
UnOp(reg1);
CASE cmd.opcode OF
|CODE.opEQP, CODE.opNEP:
IF pic THEN
reg2 := REG.GetAnyReg(R);
Pic(reg2, BIN.PICCODE, param1);
cmprr(reg1, reg2);
drop
ELSE
OutByte2(081H, 0F8H + reg1); // cmp reg1, L
Reloc(BIN.RCODE, param1)
END
|CODE.opEQIP, CODE.opNEIP:
IF pic THEN
reg2 := REG.GetAnyReg(R);
Pic(reg2, BIN.PICIMP, param1);
OutByte2(03BH, reg1 * 8 + reg2); //cmp reg1, dword [reg2]
drop
ELSE
OutByte2(3BH, 05H + reg1 * 8); // cmp reg1, dword[L]
Reloc(BIN.RIMP, param1)
END
END;
drop;
reg1 := REG.GetAnyReg(R);
CASE cmd.opcode OF
|CODE.opEQP, CODE.opEQIP: setcc(sete, reg1)
|CODE.opNEP, CODE.opNEIP: setcc(setne, reg1)
END;
andrc(reg1, 1)
|CODE.opPUSHT:
UnOp(reg1);
reg2 := REG.GetAnyReg(R);
OutByte3(8BH, 40H + reg2 * 8 + reg1, 0FCH) // mov reg2, dword[reg1 - 4]
|CODE.opISREC:
PushAll(2);
pushc(param2);
CallRTL(pic, CODE._isrec);
GetRegA
|CODE.opIS:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._is);
GetRegA
|CODE.opTYPEGR:
PushAll(1);
pushc(param2);
CallRTL(pic, CODE._guardrec);
GetRegA
|CODE.opTYPEGP:
UnOp(reg1);
PushAll(0);
push(reg1);
pushc(param2);
CallRTL(pic, CODE._guard);
GetRegA
|CODE.opTYPEGD:
UnOp(reg1);
PushAll(0);
OutByte3(0FFH, 070H + reg1, 0FCH); // push dword[reg1 - 4]
pushc(param2);
CallRTL(pic, CODE._guardrec);
GetRegA
|CODE.opCASET:
push(ecx);
push(ecx);
pushc(param2);
CallRTL(pic, CODE._guardrec);
pop(ecx);
test(eax);
jcc(jne, param1)
|CODE.opPACK:
BinOp(reg1, reg2);
push(reg2);
OutByte3(0DBH, 004H, 024H); // fild dword[esp]
OutByte2(0DDH, reg1); // fld qword[reg1]
OutByte2(0D9H, 0FDH); // fscale
OutByte2(0DDH, 018H + reg1); // fstp qword[reg1]
OutByte3(0DBH, 01CH, 024H); // fistp dword[esp]
pop(reg2);
drop;
drop
|CODE.opPACKC:
UnOp(reg1);
pushc(param2);
OutByte3(0DBH, 004H, 024H); // fild dword[esp]
OutByte2(0DDH, reg1); // fld qword[reg1]
OutByte2(0D9H, 0FDH); // fscale
OutByte2(0DDH, 018H + reg1); // fstp qword[reg1]
OutByte3(0DBH, 01CH, 024H); // fistp dword[esp]
pop(reg1);
drop
|CODE.opUNPK:
BinOp(reg1, reg2);
OutByte2(0DDH, reg1); // fld qword[reg1]
OutByte2(0D9H, 0F4H); // fxtract
OutByte2(0DDH, 018H + reg1); // fstp qword[reg1]
OutByte2(0DBH, 018H + reg2); // fistp dword[reg2]
drop;
drop
|CODE.opPUSHF:
subrc(esp, 8);
OutByte3(0DDH, 01CH, 024H) // fstp qword[esp]
|CODE.opLOADF:
UnOp(reg1);
OutByte2(0DDH, reg1); // fld qword[reg1]
drop
|CODE.opCONSTF:
float := cmd.float;
IF float = 0.0 THEN
OutByte2(0D9H, 0EEH) // fldz
ELSIF float = 1.0 THEN
OutByte2(0D9H, 0E8H) // fld1
ELSIF float = -1.0 THEN
OutByte2(0D9H, 0E8H); // fld1
OutByte2(0D9H, 0E0H) // fchs
ELSE
n := UTILS.splitf(float, a, b);
pushc(b);
pushc(a);
OutByte3(0DDH, 004H, 024H); // fld qword[esp]
addrc(esp, 8)
END
|CODE.opSAVEF:
UnOp(reg1);
OutByte2(0DDH, 018H + reg1); // fstp qword[reg1]
drop
|CODE.opADDF, CODE.opADDFI:
OutByte2(0DEH, 0C1H) // faddp st1, st
|CODE.opSUBF:
OutByte2(0DEH, 0E9H) // fsubp st1, st
|CODE.opSUBFI:
OutByte2(0DEH, 0E1H) // fsubrp st1, st
|CODE.opMULF:
OutByte2(0DEH, 0C9H) // fmulp st1, st
|CODE.opDIVF:
OutByte2(0DEH, 0F9H) // fdivp st1, st
|CODE.opDIVFI:
OutByte2(0DEH, 0F1H) // fdivrp st1, st
|CODE.opUMINF:
OutByte2(0D9H, 0E0H) // fchs
|CODE.opFABS:
OutByte2(0D9H, 0E1H) // fabs
|CODE.opFLT:
UnOp(reg1);
push(reg1);
OutByte3(0DBH, 004H, 024H); // fild dword[esp]
pop(reg1);
drop
|CODE.opFLOOR:
reg1 := REG.GetAnyReg(R);
subrc(esp, 8);
OutByte2(09BH, 0D9H); OutByte3(07CH, 024H, 004H); // fstcw word[esp+4]
OutByte2(09BH, 0D9H); OutByte3(07CH, 024H, 006H); // fstcw word[esp+6]
OutByte2(066H, 081H); OutByte3(064H, 024H, 004H); OutWord(0F3FFH); // and word[esp+4], 1111001111111111b
OutByte2(066H, 081H); OutByte3(04CH, 024H, 004H); OutWord(00400H); // or word[esp+4], 0000010000000000b
OutByte2(0D9H, 06CH); OutByte2(024H, 004H); // fldcw word[esp+4]
OutByte2(0D9H, 0FCH); // frndint
OutByte3(0DBH, 01CH, 024H); // fistp dword[esp]
pop(reg1);
OutByte2(0D9H, 06CH); OutByte2(024H, 002H); // fldcw word[esp+2]
addrc(esp, 4)
|CODE.opEQF, CODE.opEQFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 003H); // jp L
setcc(sete, al)
// L:
|CODE.opNEF, CODE.opNEFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 003H); // jp L
setcc(setne, al)
// L:
|CODE.opLTF, CODE.opGTFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 00EH); // jp L
setcc(setc, al);
setcc(sete, ah);
test(eax);
setcc(sete, al);
andrc(eax, 1)
// L:
|CODE.opGTF, CODE.opLTFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 00FH); // jp L
setcc(setc, al);
setcc(sete, ah);
cmprc(eax, 1);
setcc(sete, al);
andrc(eax, 1)
// L:
|CODE.opLEF, CODE.opGEFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 003H); // jp L
setcc(setnc, al)
// L:
|CODE.opGEF, CODE.opLEFI:
GetRegA;
OutByte2(0DAH, 0E9H); // fucompp
OutByte3(09BH, 0DFH, 0E0H); // fstsw ax
OutByte(09EH); // sahf
movrc(eax, 0);
OutByte2(07AH, 010H); // jp L
setcc(setc, al);
setcc(sete, ah);
OutByte2(000H, 0E0H); // add al,ah
OutByte2(03CH, 001H); // cmp al,1
setcc(sete, al);
andrc(eax, 1)
// L:
|CODE.opINF:
pushc(7FF00000H);
pushc(0);
OutByte3(0DDH, 004H, 024H); // fld qword[esp]
addrc(esp, 8)
|CODE.opLADR_UNPK:
n := param2 * 4;
reg1 := REG.GetAnyReg(R);
OutByte2(8DH, 45H + reg1 * 8 + long(n)); // lea reg1, dword[ebp + n]
OutIntByte(n);
BinOp(reg1, reg2);
OutByte2(0DDH, reg1); // fld qword[reg1]
OutByte2(0D9H, 0F4H); // fxtract
OutByte2(0DDH, 018H + reg1); // fstp qword[reg1]
OutByte2(0DBH, 018H + reg2); // fistp dword[reg2]
drop;
drop
|CODE.opSADR_PARAM:
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICDATA, stroffs + param2);
push(reg1);
drop
ELSE
OutByte(068H); // push _data + stroffs + param2
Reloc(BIN.RDATA, stroffs + param2)
END
|CODE.opVADR_PARAM:
n := param2 * 4;
OutByte2(0FFH, 75H + long(n)); // push dword[ebp + n]
OutIntByte(n)
|CODE.opCONST_PARAM:
pushc(param2)
|CODE.opGLOAD32_PARAM:
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICBSS, param2);
OutByte2(0FFH, 30H + reg1); // push dword[reg1]
drop
ELSE
OutByte2(0FFH, 035H); // push dword[_bss + param2]
Reloc(BIN.RBSS, param2)
END
|CODE.opLLOAD32_PARAM:
n := param2 * 4;
OutByte2(0FFH, 75H + long(n)); // push dword[ebp + n]
OutIntByte(n)
|CODE.opLOAD32_PARAM:
UnOp(reg1);
OutByte2(0FFH, 30H + reg1); // push dword[reg1]
drop
|CODE.opGADR_SAVEC:
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICBSS, param1);
OutByte2(0C7H, reg1); // mov dword[reg1], param2
OutInt(param2);
drop
ELSE
OutByte2(0C7H, 05H); // mov dword[_bss + param2], param2
Reloc(BIN.RBSS, param1);
OutInt(param2)
END
|CODE.opLADR_SAVEC:
n := param1 * 4;
OutByte2(0C7H, 45H + long(n)); // mov dword[ebp + n], param2
OutIntByte(n);
OutInt(param2)
|CODE.opLADR_SAVE:
n := param2 * 4;
UnOp(reg1);
OutByte2(89H, 45H + reg1 * 8 + long(n)); // mov dword[ebp + n], reg1
OutIntByte(n);
drop
|CODE.opLADR_INC1:
n := param2 * 4;
OutByte2(0FFH, 45H + long(n)); // inc dword[ebp + n]
OutIntByte(n)
|CODE.opLADR_DEC1:
n := param2 * 4;
OutByte2(0FFH, 4DH + long(n)); // dec dword[ebp + n]
OutIntByte(n)
|CODE.opLADR_INCC:
n := param1 * 4;
OutByte2(81H + short(param2), 45H + long(n)); // add dword[ebp + n], param2
OutIntByte(n);
OutIntByte(param2)
|CODE.opLADR_DECC:
n := param1 * 4;
OutByte2(81H + short(param2), 6DH + long(n)); // sub dword[ebp + n], param2
OutIntByte(n);
OutIntByte(param2)
|CODE.opLADR_INC1B:
n := param2 * 4;
OutByte2(0FEH, 45H + long(n)); // inc byte[ebp + n]
OutIntByte(n)
|CODE.opLADR_DEC1B:
n := param2 * 4;
OutByte2(0FEH, 4DH + long(n)); // dec byte[ebp + n]
OutIntByte(n)
|CODE.opLADR_INCCB:
n := param1 * 4;
OutByte2(80H, 45H + long(n)); // add byte[ebp + n], param2
OutIntByte(n);
OutByte(param2 MOD 256)
|CODE.opLADR_DECCB:
n := param1 * 4;
OutByte2(80H, 6DH + long(n)); // sub byte[ebp + n], param2
OutIntByte(n);
OutByte(param2 MOD 256)
|CODE.opLADR_INC:
n := param2 * 4;
UnOp(reg1);
OutByte2(01H, 45H + long(n) + reg1 * 8); // add dword[ebp + n], reg1
OutIntByte(n);
drop
|CODE.opLADR_DEC:
n := param2 * 4;
UnOp(reg1);
OutByte2(29H, 45H + long(n) + reg1 * 8); // sub dword[ebp + n], reg1
OutIntByte(n);
drop
|CODE.opLADR_INCB:
n := param2 * 4;
UnOp(reg1);
OutByte2(00H, 45H + long(n) + reg1 * 8); // add byte[ebp + n], reg1
OutIntByte(n);
drop
|CODE.opLADR_DECB:
n := param2 * 4;
UnOp(reg1);
OutByte2(28H, 45H + long(n) + reg1 * 8); // sub byte[ebp + n], reg1
OutIntByte(n);
drop
|CODE.opLADR_INCL, CODE.opLADR_EXCL:
n := param2 * 4;
UnOp(reg1);
cmprc(reg1, 32);
label := NewLabel();
jcc(jnb, label);
OutByte3(0FH, 0ABH + 8 * ORD(cmd.opcode = CODE.opLADR_EXCL), 45H + long(n) + reg1 * 8); // bts(r) dword[ebp + n], reg1
OutIntByte(n);
SetLabel(label);
drop
|CODE.opLADR_INCLC, CODE.opLADR_EXCLC:
n := param1 * 4;
OutByte3(0FH, 0BAH, 6DH + long(n) + 8 * ORD(cmd.opcode = CODE.opLADR_EXCLC)); // bts(r) dword[ebp + n], param2
OutIntByte(n);
OutByte(param2)
|CODE.opLOOP, CODE.opENDLOOP:
END;
cmd := cmd.next(COMMAND)
END;
ASSERT(R.pushed = 0);
ASSERT(R.top = -1)
END translate;
PROCEDURE prolog (code: CODE.CODES; pic: BOOLEAN; target, stack, dllinit, dllret: INTEGER);
VAR
reg1, entry, tcount, dcount: INTEGER;
BEGIN
entry := NewLabel();
SetLabel(entry);
IF target = mConst.Target_iDLL THEN
push(ebp);
mov(ebp, esp);
OutByte3(0FFH, 75H, 16); // push dword[ebp+16]
OutByte3(0FFH, 75H, 12); // push dword[ebp+12]
OutByte3(0FFH, 75H, 8); // push dword[ebp+8]
CallRTL(pic, CODE._dllentry);
test(eax);
jcc(je, dllret)
ELSIF target = mConst.Target_iObject THEN
SetLabel(dllinit)
END;
IF target = mConst.Target_iKolibri THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.IMPTAB, 0);
push(reg1); // push IMPORT
drop
ELSIF target = mConst.Target_iObject THEN
OutByte(68H); // push IMPORT
Reloc(BIN.IMPTAB, 0)
ELSIF target = mConst.Target_iELF32 THEN
push(esp)
ELSE
pushc(0)
END;
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICCODE, entry);
push(reg1); // push CODE
drop
ELSE
OutByte(68H); // push CODE
Reloc(BIN.RCODE, entry)
END;
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICDATA, 0);
push(reg1); // push _data
drop
ELSE
OutByte(68H); // push _data
Reloc(BIN.RDATA, 0)
END;
tcount := CHL.Length(code.types);
dcount := CHL.Length(code.data);
pushc(tcount);
IF pic THEN
reg1 := REG.GetAnyReg(R);
Pic(reg1, BIN.PICDATA, tcount * 4 + dcount);
push(reg1); // push _data + tcount * 4 + dcount
drop
ELSE
OutByte(68H); // push _data
Reloc(BIN.RDATA, tcount * 4 + dcount)
END;
CallRTL(pic, CODE._init)
END prolog;
PROCEDURE epilog (code: CODE.CODES; pic: BOOLEAN; modname: ARRAY OF CHAR; target, stack, ver, dllinit, dllret: INTEGER);
VAR
i, n: INTEGER;
exp: CODE.EXPORT_PROC;
path, name, ext: PATHS.PATH;
tcount, dcount: INTEGER;
PROCEDURE import (imp: LISTS.LIST);
VAR
lib: CODE.IMPORT_LIB;
proc: CODE.IMPORT_PROC;
BEGIN
lib := imp.first(CODE.IMPORT_LIB);
WHILE lib # NIL DO
BIN.Import(program, lib.name, 0);
proc := lib.procs.first(CODE.IMPORT_PROC);
WHILE proc # NIL DO
BIN.Import(program, proc.name, proc.label);
proc := proc.next(CODE.IMPORT_PROC)
END;
lib := lib.next(CODE.IMPORT_LIB)
END
END import;
BEGIN
IF target IN {mConst.Target_iConsole, mConst.Target_iGUI, mConst.Target_iKolibri, mConst.Target_iELF32} THEN
pushc(0);
CallRTL(pic, CODE._exit);
ELSIF target = mConst.Target_iDLL THEN
SetLabel(dllret);
movrc(eax, 1);
OutByte(0C9H); // leave
OutByte3(0C2H, 0CH, 0) // ret 12
ELSIF target = mConst.Target_iObject THEN
movrc(eax, 1);
OutByte(0C3H) // ret
END;
fixup;
tcount := CHL.Length(code.types);
dcount := CHL.Length(code.data);
FOR i := 0 TO tcount - 1 DO
BIN.PutData32LE(program, CHL.GetInt(code.types, i))
END;
FOR i := 0 TO dcount - 1 DO
BIN.PutData(program, CHL.GetByte(code.data, i))
END;
program.modname := CHL.Length(program.data);
PATHS.split(modname, path, name, ext);
BIN.PutDataStr(program, name);
BIN.PutDataStr(program, ext);
BIN.PutData(program, 0);
IF target = mConst.Target_iObject THEN
BIN.Export(program, "lib_init", dllinit);
END;
exp := code.export.first(CODE.EXPORT_PROC);
WHILE exp # NIL DO
BIN.Export(program, exp.name, exp.label);
exp := exp.next(CODE.EXPORT_PROC)
END;
import(code.import);
n := code.dmin - CHL.Length(code.data);
IF n > 0 THEN
INC(code.bss, n)
END;
BIN.SetParams(program, MAX(code.bss, 4), stack * (1024 * 1024), WCHR(ver DIV 65536), WCHR(ver MOD 65536));
END epilog;
PROCEDURE CodeGen* (code: CODE.CODES; outname: ARRAY OF CHAR; target, stack, base, ver: INTEGER; pic: BOOLEAN);
VAR
dllret, dllinit: INTEGER;
BEGIN
CodeList := LISTS.create(NIL);
program := BIN.create(code.lcount);
dllinit := NewLabel();
dllret := NewLabel();
IF target = mConst.Target_iObject THEN
pic := FALSE
END;
IF target IN {mConst.Target_iConsole, mConst.Target_iGUI, mConst.Target_iDLL, mConst.Target_iELF32} THEN
pic := TRUE
END;
R := REG.Create(push, pop, mov, xchg, NIL, NIL, {eax, ecx, edx}, {});
prolog(code, pic, target, stack, dllinit, dllret);
translate(code, pic, CHL.Length(code.types) * 4);
epilog(code, pic, outname, target, stack, ver, dllinit, dllret);
BIN.fixup(program);
IF target IN {mConst.Target_iConsole, mConst.Target_iGUI, mConst.Target_iDLL} THEN
PE32.write(program, outname, base, target = mConst.Target_iConsole, target = mConst.Target_iDLL, FALSE)
ELSIF target = mConst.Target_iKolibri THEN
KOS.write(program, outname)
ELSIF target = mConst.Target_iObject THEN
MSCOFF.write(program, outname, ver)
ELSIF target = mConst.Target_iELF32 THEN
ELF.write(program, outname, FALSE)
END
END CodeGen;
PROCEDURE SetProgram* (prog: BIN.PROGRAM);
BEGIN
program := prog;
CodeList := LISTS.create(NIL)
END SetProgram;
END X86.