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/* Copyright (C) 2023 Aryadev Chavali
* You may distribute and modify this code under the terms of the
* GPLv2 license. You should have received a copy of the GPLv2
* license with this file. If not, please write to:
* aryadev@aryadevchavali.com.
* Created: 2023-10-15
* Author: Aryadev Chavali
* Description: Entrypoint to program
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "./inst.h"
#include "./runtime.h"
int interpret_bytecode(const char *filepath)
{
FILE *fp = fopen(filepath, "rb");
size_t number = 0;
inst_t *instructions = insts_read_bytecode_file(fp, &number);
fclose(fp);
byte stack[256];
vm_t vm = {0};
vm_load_stack(&vm, stack, ARR_SIZE(stack));
vm_load_program(&vm, instructions, number);
err_t err = vm_execute_all(&vm);
int ret = 0;
if (err)
{
const char *error_str = err_as_cstr(err);
fprintf(stderr, "[ERROR]: %s\n", error_str);
vm_print_all(&vm, stderr);
ret = 255 - err;
}
free(instructions);
return ret;
}
void usage(const char *program_name, FILE *out)
{
fprintf(out,
"Usage: %s [OPTIONS] FILE\n"
"\t FILE: Bytecode file to execute\n"
"\tOptions:\n"
"\t\t To be developed...\n",
program_name);
}
int main(int argc, char *argv[])
{
if (argc == 1)
{
usage(argv[0], stderr);
return 1;
}
const char *filename = argv[1];
return interpret_bytecode(filename);
}
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