67 lines
3.2 KiB
C
Executable File
67 lines
3.2 KiB
C
Executable File
#ifndef EMULATOR_H_
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#define EMULATOR_H_
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/**
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* @file
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* @author Ben Goldsworthy (rumps) <me+scc150@bengoldsworthy.net>
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* @version 1.0
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*
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* @section LICENSE
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*
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* This file is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License,
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* or (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @section DESCRIPTION
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*
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* Header file for `emulator.c`.
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*/
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#include <stdio.h> // used for printf()
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#include <stdlib.h> // used for atoi()
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#include <stdbool.h> // used for bool data type
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#define MAX_PROG_LEN 99 // The maximum length (in lines) a program can have
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#define MAX_LINE_LEN 80 // The maximum length of a program line (in characters)
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#define MAX_OPCODE 10 // The maximum number of opcodes that are supported
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#define MAX_REGISTER 4 // The maximum number of registers (minus INSP)
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#define OPCODE_LENGTH 3 // The maximum length of an opcode
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#define ARG_LENGTH 4 // The maximum length of an arg
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#define OPCODE 0 // Used for parsing instruction segments
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#define ARG1 1
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#define ARG2 2
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// Opcode handling functions
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int opcodeNOP(char* opcode, char* arg1, char* arg2);
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int opcodeSET(char* opcode, char* arg1, char* arg2);
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int opcodeAND(char* opcode, char* arg1, char* arg2);
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int opcodeOR(char* opcode, char* arg1, char* arg2);
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int opcodeADD(char* opcode, char* arg1, char* arg2);
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int opcodeSUB(char* opcode, char* arg1, char* arg2);
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int opcodeSHL(char* opcode, char* arg1, char* arg2);
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int opcodeSHR(char* opcode, char* arg1, char* arg2);
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int opcodeJMP(char* opcode, char* arg1, char* arg2);
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int opcodePRT(char* opcode, char* arg1, char* arg2);
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// Argument extraction function
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int getArg2(char* arg2);
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// Command validator function
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bool isValid(char* opcode, char* arg1, char* arg2);
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// Emulator run functions
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int execInstruction(char* instruction);
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int execProgram();
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int loadProgram();
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#endif /* EMULATOR_H_ */
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