mirror of
https://github.com/arabine/open-story-teller.git
synced 2025-12-06 17:09:06 +01:00
124 lines
3.5 KiB
C++
124 lines
3.5 KiB
C++
/*
|
|
The MIT License
|
|
|
|
Copyright (c) 2022 Anthony Rabine
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef CHIP32_ASSEMBLER_H
|
|
#define CHIP32_ASSEMBLER_H
|
|
|
|
#include "chip32_vm.h"
|
|
#include <vector>
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <map>
|
|
#include <iostream>
|
|
|
|
namespace Chip32
|
|
{
|
|
|
|
struct Mnemonics {
|
|
std::string mnemonic;
|
|
OpCode op;
|
|
};
|
|
|
|
// Complete tokenized instruction
|
|
struct Instr {
|
|
uint16_t line{0};
|
|
std::vector<std::string> args;
|
|
std::vector<uint8_t> compiledArgs;
|
|
OpCode code { 0, 0, 0 };
|
|
std::string mnemonic;
|
|
uint16_t dataTypeSize{0};
|
|
uint16_t dataLen{0};
|
|
|
|
bool isLabel{false}; //!< If true, this is a label, otherwise it is an instruction
|
|
bool useLabel{false}; //!< If true, the instruction uses a label
|
|
bool isRomData{false}; //!< True is constant data in program
|
|
bool isRamData{false}; //!< True is constant data in program
|
|
|
|
uint16_t addr{0}; //!< instruction address when assembled in program memory
|
|
|
|
bool isRomCode() const { return !(isLabel || isRomData || isRamData); }
|
|
};
|
|
|
|
struct RegNames
|
|
{
|
|
chip32_register_t reg;
|
|
std::string name;
|
|
};
|
|
|
|
struct Result
|
|
{
|
|
int ramUsageSize{0};
|
|
int romUsageSize{0};
|
|
int constantsSize{0};
|
|
|
|
void Print()
|
|
{
|
|
std::cout << "RAM usage: " << ramUsageSize << " bytes\n"
|
|
<< "IMAGE size: " << romUsageSize << " bytes\n"
|
|
<< " -> ROM DATA: " << constantsSize << " bytes\n"
|
|
<< " -> ROM CODE: " << romUsageSize - constantsSize << "\n"
|
|
<< std::endl;
|
|
|
|
}
|
|
};
|
|
|
|
|
|
class Assembler
|
|
{
|
|
public:
|
|
// Separated parser to allow only code check
|
|
bool Parse(const std::string &data);
|
|
// Generate the executable binary after the parse pass
|
|
bool BuildBinary(std::vector<uint8_t> &program, Result &result);
|
|
|
|
void Clear() {
|
|
m_labels.clear();
|
|
m_instructions.clear();
|
|
}
|
|
|
|
std::vector<Instr>::const_iterator Begin() { return m_instructions.begin(); }
|
|
std::vector<Instr>::const_iterator End() { return m_instructions.end(); }
|
|
|
|
// Returns the register number from the name
|
|
bool GetRegister(const std::string ®Name, uint8_t ®);
|
|
bool GetRegisterName(uint8_t reg, std::string ®Name);
|
|
|
|
std::string GetLastError() { return m_lastError; }
|
|
|
|
private:
|
|
bool CompileMnemonicArguments(Instr &instr);
|
|
|
|
// label, address
|
|
std::map<std::string, Instr> m_labels;
|
|
|
|
std::string m_lastError;
|
|
|
|
std::vector<Instr> m_instructions;
|
|
bool CompileConstantArguments(Instr &instr);
|
|
};
|
|
|
|
}
|
|
|
|
#endif // CHIP32_ASSEMBLER_H
|