Aryadev Chavali
d01b39d1bb
Given a filepath, helper function to write a buffer of bytes to a file and to read a file completely as a buffer.
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Copyright (C) 2023 Aryadev Chavali
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* You may distribute and modify this code under the terms of the
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* GPLv2 license. You should have received a copy of the GPLv2
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* license with this file. If not, please write to:
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* aryadev@aryadevchavali.com.
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* Created: 2023-10-15
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* Author: Aryadev Chavali
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* Description: Entrypoint to program
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include "./inst.h"
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#include "./runtime.h"
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void write_bytes_to_file(darr_t *bytes, const char *filepath)
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{
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FILE *fp = fopen(filepath, "wb");
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size_t size = fwrite(bytes->data, bytes->used, 1, fp);
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fclose(fp);
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assert(size == 1);
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}
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void read_bytes_from_file(const char *filepath, darr_t *darr)
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{
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darr->data = NULL;
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darr->used = 0;
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darr->available = 0;
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FILE *fp = fopen(filepath, "rb");
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fseek(fp, 0, SEEK_END);
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long size = ftell(fp);
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darr_init(darr, size);
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fseek(fp, 0, SEEK_SET);
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size_t read = fread(darr->data, size, 1, fp);
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fclose(fp);
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assert(read == 1);
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}
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int main(void)
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{
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byte stack_data[256];
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vm_t vm = {0};
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vm_load_stack(&vm, stack_data, ARR_SIZE(stack_data));
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inst_t instructions[] = {
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INST_BPUSH(0xfa), INST_BMOV(0), INST_BPUSH(0xfb),
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INST_BMOV(1), INST_BPUSH(0xfc), INST_BMOV(2),
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INST_BPUSH(0xfd), INST_BMOV(3), INST_BPUSH_REG(3),
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INST_BPUSH_REG(2), INST_BPUSH_REG(1), INST_BPUSH_REG(0),
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};
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vm_load_program(&vm, instructions, ARR_SIZE(instructions));
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for (size_t i = 0; i < ARR_SIZE(instructions); ++i)
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vm_execute(&vm);
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return 0;
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}
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