65 lines
1.2 KiB
C
65 lines
1.2 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 <stdint.h>
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#include <stdio.h>
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#include <string.h>
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typedef uint64_t u64;
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typedef uint32_t u32;
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typedef int32_t i32;
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typedef int64_t i64;
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typedef float f32;
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typedef double f64;
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typedef uint8_t byte;
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typedef u64 word;
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#define VM_STACK_MAX 1024
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typedef struct
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{
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struct Stack
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{
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byte data[VM_STACK_MAX];
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word pointer;
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} stack;
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} vm_t;
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typedef union
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{
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byte as_byte;
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word as_word;
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} data_t;
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void vm_push_byte(vm_t *vm, data_t b)
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{
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if (vm->stack.pointer >= VM_STACK_MAX)
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return;
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vm->stack.data[vm->stack.pointer++] = b.as_byte;
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}
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void vm_push_word(vm_t *vm, data_t w)
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{
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// NOTE: Relies on sizeof measuring in bytes
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if (vm->stack.pointer + sizeof(w) >= VM_STACK_MAX)
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return;
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memcpy(vm->stack.data + vm->stack.pointer, &w.as_word, sizeof(w.as_word));
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vm->stack.pointer += sizeof(w.as_word);
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}
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int main(void)
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{
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puts("Hello, world!");
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return 0;
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}
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