/*
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/*
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* Copyright (c) 2016 by Alex I. Kuznetsov.
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* Copyright (c) 2016 by Alex I. Kuznetsov.
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*
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*
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* Part of the LXP32 CPU IP core.
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* Part of the LXP32 CPU IP core.
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*
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*
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* This module defines the Assembler class which performs
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* This module defines the Assembler class which performs
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* compilation of LXP32 assembly source files.
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* compilation of LXP32 assembly source files.
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*/
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*/
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#ifndef ASSEMBLER_H_INCLUDED
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#ifndef ASSEMBLER_H_INCLUDED
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#define ASSEMBLER_H_INCLUDED
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#define ASSEMBLER_H_INCLUDED
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#include "linkableobject.h"
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#include "linkableobject.h"
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#include <vector>
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#include <vector>
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#include <map>
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#include <map>
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#include <string>
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#include <string>
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#include <cstdint>
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#include <cstdint>
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class Assembler {
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class Assembler {
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typedef std::vector<std::string> TokenList;
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typedef std::vector<std::string> TokenList;
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typedef std::int_least64_t Integer;
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typedef std::int_least64_t Integer;
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enum LexerState {
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enum LexerState {
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Initial,
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Initial,
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Word,
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Word,
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StringLiteral,
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StringLiteral,
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BlockComment
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BlockComment
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};
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};
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struct Operand {
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struct Operand {
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enum Type {Null,Register,Identifier,NumericLiteral};
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enum Type {Null,Register,Identifier,NumericLiteral};
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Type type=Null;
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Type type=Null;
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std::string str;
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std::string str;
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Integer i=0;
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Integer i=0;
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std::uint8_t reg=0;
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std::uint8_t reg=0;
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};
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};
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LinkableObject _obj;
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LinkableObject _obj;
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std::map<std::string,TokenList> _macros;
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std::map<std::string,TokenList> _macros;
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LexerState _state;
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LexerState _state;
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int _line;
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int _line;
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std::vector<std::string> _currentLabels;
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std::vector<std::string> _currentLabels;
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std::string _currentFileName;
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std::string _currentFileName;
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std::vector<std::string> _includeSearchDirs;
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std::vector<std::string> _includeSearchDirs;
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std::vector<std::string> _exportedSymbols;
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public:
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public:
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void processFile(const std::string &filename);
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void processFile(const std::string &filename);
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void addIncludeSearchDir(const std::string &dir);
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void addIncludeSearchDir(const std::string &dir);
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int line() const;
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int line() const;
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std::string currentFileName() const;
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std::string currentFileName() const;
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LinkableObject &object();
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LinkableObject &object();
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const LinkableObject &object() const;
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const LinkableObject &object() const;
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private:
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private:
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void processFileRecursive(const std::string &filename);
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void processFileRecursive(const std::string &filename);
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TokenList tokenize(const std::string &str);
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TokenList tokenize(const std::string &str);
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void expand(TokenList &list);
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void expand(TokenList &list);
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void elaborate(TokenList &list);
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void elaborate(TokenList &list);
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void elaborateDirective(TokenList &list);
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void elaborateDirective(TokenList &list);
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LinkableObject::Word elaborateDataDefinition(TokenList &list);
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LinkableObject::Word elaborateDataDefinition(TokenList &list);
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LinkableObject::Word elaborateInstruction(TokenList &list);
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LinkableObject::Word elaborateInstruction(TokenList &list);
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static bool validateIdentifier(const std::string &str);
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static bool validateIdentifier(const std::string &str);
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static Integer numericLiteral(const std::string &str);
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static Integer numericLiteral(const std::string &str);
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static std::vector<Operand> getOperands(const TokenList &list);
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static std::vector<Operand> getOperands(const TokenList &list);
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// LXP32 instructions
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// LXP32 instructions
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void encodeDstOperand(LinkableObject::Word &word,const Operand &arg);
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void encodeDstOperand(LinkableObject::Word &word,const Operand &arg);
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void encodeRd1Operand(LinkableObject::Word &word,const Operand &arg);
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void encodeRd1Operand(LinkableObject::Word &word,const Operand &arg);
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void encodeRd2Operand(LinkableObject::Word &word,const Operand &arg);
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void encodeRd2Operand(LinkableObject::Word &word,const Operand &arg);
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void encodeAdd(const TokenList &list);
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void encodeAdd(const TokenList &list);
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void encodeAnd(const TokenList &list);
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void encodeAnd(const TokenList &list);
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void encodeCall(const TokenList &list);
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void encodeCall(const TokenList &list);
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void encodeCjmpxx(const TokenList &list);
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void encodeCjmpxx(const TokenList &list);
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void encodeDivs(const TokenList &list);
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void encodeDivs(const TokenList &list);
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void encodeDivu(const TokenList &list);
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void encodeDivu(const TokenList &list);
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void encodeHlt(const TokenList &list);
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void encodeHlt(const TokenList &list);
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void encodeJmp(const TokenList &list);
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void encodeJmp(const TokenList &list);
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void encodeIret(const TokenList &list);
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void encodeIret(const TokenList &list);
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void encodeLc(const TokenList &list);
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void encodeLc(const TokenList &list);
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void encodeLcs(const TokenList &list);
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void encodeLsb(const TokenList &list);
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void encodeLsb(const TokenList &list);
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void encodeLub(const TokenList &list);
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void encodeLub(const TokenList &list);
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void encodeLw(const TokenList &list);
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void encodeLw(const TokenList &list);
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void encodeMods(const TokenList &list);
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void encodeMods(const TokenList &list);
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void encodeModu(const TokenList &list);
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void encodeModu(const TokenList &list);
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void encodeMov(const TokenList &list);
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void encodeMov(const TokenList &list);
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void encodeMul(const TokenList &list);
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void encodeMul(const TokenList &list);
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void encodeNeg(const TokenList &list);
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void encodeNop(const TokenList &list);
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void encodeNop(const TokenList &list);
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void encodeNot(const TokenList &list);
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void encodeNot(const TokenList &list);
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void encodeOr(const TokenList &list);
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void encodeOr(const TokenList &list);
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void encodeRet(const TokenList &list);
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void encodeRet(const TokenList &list);
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void encodeSb(const TokenList &list);
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void encodeSb(const TokenList &list);
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void encodeSl(const TokenList &list);
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void encodeSl(const TokenList &list);
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void encodeSrs(const TokenList &list);
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void encodeSrs(const TokenList &list);
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void encodeSru(const TokenList &list);
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void encodeSru(const TokenList &list);
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void encodeSub(const TokenList &list);
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void encodeSub(const TokenList &list);
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void encodeSw(const TokenList &list);
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void encodeSw(const TokenList &list);
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void encodeXor(const TokenList &list);
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void encodeXor(const TokenList &list);
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};
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};
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#endif
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#endif
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