132 lines
4.6 KiB
C++
132 lines
4.6 KiB
C++
/*
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* File: locIdent.h
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* Purpose: High-level local identifier definitions
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* Date: October 1993
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* (C) Cristina Cifuentes
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*/
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#pragma once
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#include <stdint.h>
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#include <vector>
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#include <list>
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#include <set>
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#include <algorithm>
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#include "types.h"
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#include "Enums.h"
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#include "machine_x86.h"
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/* Type definition */
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// this array has to stay in-order of addition i.e. not std::set<iICODE,std::less<iICODE> >
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// TODO: why ?
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struct ICODE;
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typedef std::list<ICODE>::iterator iICODE;
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struct IDX_ARRAY : public std::vector<iICODE>
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{
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bool inList(iICODE idx)
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{
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return std::find(begin(),end(),idx)!=end();
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}
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};
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typedef enum
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{
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STK_FRAME, /* For stack vars */
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REG_FRAME, /* For register variables */
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GLB_FRAME /* For globals */
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} frameType;
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typedef struct
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{
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int16_t seg; /* segment value */
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int16_t off; /* offset */
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eReg regi; /* optional indexed register */
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} BWGLB_TYPE;
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typedef struct
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{ /* For TYPE_LONG_(UN)SIGN on the stack */
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int offH; /* high offset from BP */
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int offL; /* low offset from BP */
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} LONG_STKID_TYPE;
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typedef struct
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{ /* For TYPE_LONG_(UN)SIGN registers */
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eReg h; /* high register */
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eReg l; /* low register */
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} LONGID_TYPE;
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/* ID, LOCAL_ID */
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struct ID
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{
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hlType type; /* Probable type */
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bool illegal; /* Boolean: not a valid field any more */
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//std::vector<iICODE> idx;
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IDX_ARRAY idx; /* Index into icode array (REG_FRAME only) */
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frameType loc; /* Frame location */
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bool hasMacro; /* Identifier requires a macro */
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char macro[10]; /* Macro for this identifier */
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std::string name; /* Identifier's name */
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union { /* Different types of identifiers */
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eReg regi; /* For TYPE_BYTE(uint16_t)_(UN)SIGN registers */
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struct { /* For TYPE_BYTE(uint16_t)_(UN)SIGN on the stack */
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uint8_t regOff; /* register offset (if any) */
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int off; /* offset from BP */
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} bwId;
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BWGLB_TYPE bwGlb; /* For TYPE_BYTE(uint16_t)_(UN)SIGN globals */
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LONGID_TYPE longId; /* For TYPE_LONG_(UN)SIGN registers */
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LONG_STKID_TYPE longStkId; /* For TYPE_LONG_(UN)SIGN on the stack */
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struct { /* For TYPE_LONG_(UN)SIGN globals */
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int16_t seg; /* segment value */
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int16_t offH; /* offset high */
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int16_t offL; /* offset low */
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uint8_t regi; /* optional indexed register */
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} longGlb;
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struct { /* For TYPE_LONG_(UN)SIGN constants */
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uint32_t h; /* high uint16_t */
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uint32_t l; /* low uint16_t */
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} longKte;
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} id;
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ID();
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ID(hlType t, frameType f);
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bool isSigned() const { return (type==TYPE_BYTE_SIGN)||(type==TYPE_WORD_SIGN)||(type==TYPE_LONG_SIGN);}
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uint16_t typeBitsize() const
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{
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return TypeContainer::typeSize(type)*8;
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}
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void setLocalName(int i)
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{
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char buf[32];
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sprintf (buf, "loc%ld", i);
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name=buf;
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}
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};
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struct LOCAL_ID
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{
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std::vector<ID> id_arr;
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public:
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LOCAL_ID()
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{
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id_arr.reserve(256);
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}
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// interface to allow range based iteration
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std::vector<ID>::iterator begin() {return id_arr.begin();}
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std::vector<ID>::iterator end() {return id_arr.end();}
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int newByteWordReg(hlType t, eReg regi);
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int newByteWordStk(hlType t, int off, uint8_t regOff);
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int newIntIdx(int16_t seg, int16_t off, eReg regi, int ix, hlType t);
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int newLongReg(hlType t, eReg regH, eReg regL, iICODE ix_);
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int newLong(opLoc sd, iICODE pIcode, hlFirst f, iICODE ix, operDu du, int off);
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int newLong(opLoc sd, iICODE pIcode, hlFirst f, iICODE ix, operDu du, iICODE atOffset);
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void newIdent(hlType t, frameType f);
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void flagByteWordId(int off);
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void propLongId(uint8_t regL, uint8_t regH, const char *name);
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size_t csym() const {return id_arr.size();}
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protected:
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int newLongIdx(int16_t seg, int16_t offH, int16_t offL, uint8_t regi, hlType t);
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int newLongGlb(int16_t seg, int16_t offH, int16_t offL, hlType t);
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int newLongStk(hlType t, int offH, int offL);
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};
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