134 lines
4.8 KiB
C++
134 lines
4.8 KiB
C++
/*
|
|
* File: locIdent.h
|
|
* Purpose: High-level local identifier definitions
|
|
* Date: October 1993
|
|
* (C) Cristina Cifuentes
|
|
*/
|
|
|
|
#pragma once
|
|
#include <vector>
|
|
#include <algorithm>
|
|
#include "icode.h"
|
|
/* Type definition */
|
|
struct IDX_ARRAY : public std::vector<int>
|
|
{
|
|
bool inList(int idx)
|
|
{
|
|
return std::find(begin(),end(),idx)!=end();
|
|
}
|
|
};
|
|
/* Type definitions used in the decompiled program */
|
|
typedef enum {
|
|
TYPE_UNKNOWN = 0, /* unknown so far */
|
|
TYPE_BYTE_SIGN, /* signed byte (8 bits) */
|
|
TYPE_BYTE_UNSIGN, /* unsigned byte */
|
|
TYPE_WORD_SIGN, /* signed word (16 bits) */
|
|
TYPE_WORD_UNSIGN, /* unsigned word (16 bits) */
|
|
TYPE_LONG_SIGN, /* signed long (32 bits) */
|
|
TYPE_LONG_UNSIGN, /* unsigned long (32 bits) */
|
|
TYPE_RECORD, /* record structure */
|
|
TYPE_PTR, /* pointer (32 bit ptr) */
|
|
TYPE_STR, /* string */
|
|
TYPE_CONST, /* constant (any type) */
|
|
TYPE_FLOAT, /* floating point */
|
|
TYPE_DOUBLE /* double precision float */
|
|
} hlType;
|
|
|
|
static constexpr const char *hlTypes[13] = {"", "char", "unsigned char", "int", "unsigned int",
|
|
"long", "unsigned long", "record", "int *", "char *",
|
|
"", "float", "double"};
|
|
|
|
typedef enum
|
|
{
|
|
STK_FRAME, /* For stack vars */
|
|
REG_FRAME, /* For register variables */
|
|
GLB_FRAME /* For globals */
|
|
} frameType;
|
|
|
|
typedef struct
|
|
{
|
|
int16 seg; /* segment value */
|
|
int16 off; /* offset */
|
|
byte regi; /* optional indexed register */
|
|
} BWGLB_TYPE;
|
|
|
|
|
|
typedef struct
|
|
{ /* For TYPE_LONG_(UN)SIGN on the stack */
|
|
Int offH; /* high offset from BP */
|
|
Int offL; /* low offset from BP */
|
|
} LONG_STKID_TYPE;
|
|
typedef struct
|
|
{ /* For TYPE_LONG_(UN)SIGN registers */
|
|
byte h; /* high register */
|
|
byte l; /* low register */
|
|
} LONGID_TYPE;
|
|
|
|
|
|
/* ID, LOCAL_ID */
|
|
struct ID
|
|
{
|
|
hlType type; /* Probable type */
|
|
boolT illegal; /* Boolean: not a valid field any more */
|
|
IDX_ARRAY idx; /* Index into icode array (REG_FRAME only) */
|
|
frameType loc; /* Frame location */
|
|
boolT hasMacro; /* Identifier requires a macro */
|
|
char macro[10]; /* Macro for this identifier */
|
|
char name[20]; /* Identifier's name */
|
|
union { /* Different types of identifiers */
|
|
byte regi; /* For TYPE_BYTE(WORD)_(UN)SIGN registers */
|
|
struct { /* For TYPE_BYTE(WORD)_(UN)SIGN on the stack */
|
|
byte regOff; /* register offset (if any) */
|
|
Int off; /* offset from BP */
|
|
} bwId;
|
|
BWGLB_TYPE bwGlb; /* For TYPE_BYTE(WORD)_(UN)SIGN globals */
|
|
LONGID_TYPE longId; /* For TYPE_LONG_(UN)SIGN registers */
|
|
LONG_STKID_TYPE longStkId; /* For TYPE_LONG_(UN)SIGN on the stack */
|
|
struct { /* For TYPE_LONG_(UN)SIGN globals */
|
|
int16 seg; /* segment value */
|
|
int16 offH; /* offset high */
|
|
int16 offL; /* offset low */
|
|
byte regi; /* optional indexed register */
|
|
} longGlb;
|
|
struct { /* For TYPE_LONG_(UN)SIGN constants */
|
|
dword h; /* high word */
|
|
dword l; /* low word */
|
|
} longKte;
|
|
} id;
|
|
ID()
|
|
{
|
|
memset(this,0,sizeof(ID));
|
|
}
|
|
ID(hlType t, frameType f)
|
|
{
|
|
memset(this,0,sizeof(ID));
|
|
type=t;
|
|
loc=f;
|
|
}
|
|
};
|
|
|
|
struct LOCAL_ID
|
|
{
|
|
std::vector<ID> id_arr;
|
|
public:
|
|
LOCAL_ID()
|
|
{
|
|
id_arr.reserve(256);
|
|
}
|
|
Int newByteWordReg(hlType t, byte regi);
|
|
Int newByteWordStk(hlType t, Int off, byte regOff);
|
|
Int newIntIdx(int16 seg, int16 off, byte regi, Int ix, hlType t);
|
|
Int newLongReg(hlType t, byte regH, byte regL, Int ix);
|
|
Int newLong(opLoc sd, ICODE *pIcode, hlFirst f, Int ix, operDu du, Int off);
|
|
void newIdent(hlType t, frameType f);
|
|
void flagByteWordId(Int off);
|
|
void propLongId(byte regL, byte regH, const char *name);
|
|
size_t csym() const {return id_arr.size();}
|
|
protected:
|
|
Int newLongIdx(int16 seg, int16 offH, int16 offL, byte regi, Int ix, hlType t);
|
|
Int newLongGlb(int16 seg, int16 offH, int16 offL, Int ix, hlType t);
|
|
Int newLongStk(hlType t, Int offH, Int offL);
|
|
};
|
|
|
|
|