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change to uint8_t for bytecode to reduce wasted bytes

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This commit is contained in:
William Bell
2025-06-27 06:07:57 +01:00
parent 358127a145
commit aa65393e2c
11 changed files with 100 additions and 53 deletions
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34
src/translator/translator.c
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@@ -9,6 +9,12 @@
#include <stdlib.h>
#include <string.h>
void uint64_to_bytes(uint64_t value, uint8_t bytes[8]) {
for (int i = 0; i < 8; i++) {
bytes[i] = (value >> (i * 8)) & 0xFF;
}
}
void arena_init(ConstantArena *arena) {
arena->data = checked_malloc(CHUNK_SIZE);
arena->capacity = CHUNK_SIZE;
@@ -56,25 +62,29 @@ size_t arena_push(ConstantArena *arena, const void *data, size_t length) {
Translated init_translator() {
Translated translated;
translated.registerCount = 0;
darray_init(&translated.bytecode, sizeof(uint64_t));
darray_init(&translated.bytecode, sizeof(uint8_t));
arena_init(&translated.constants);
return translated;
}
void set_instruction_code(Translated *translator, size_t offset,
uint64_t code) {
size_t *ptr = (translator->bytecode.data + offset);
*ptr = code;
}
size_t push_instruction_code(Translated *translator, uint64_t code) {
code = htole64(code);
size_t push_instruction_byte(Translated *translator, uint8_t byte) {
size_t offset = translator->bytecode.size;
darray_push(&translator->bytecode, &code);
darray_push(&translator->bytecode, &byte);
return offset;
}
void set_registers(Translated *translator, size_t count) {
size_t push_instruction_code(Translated *translator, uint64_t code) {
size_t offset = translator->bytecode.size;
uint8_t bytes[8];
uint64_to_bytes(code, bytes);
for (size_t i = 0; i < sizeof(bytes); i++) {
darray_push(&translator->bytecode, &(bytes[i]));
}
return offset;
}
void set_registers(Translated *translator, uint8_t count) {
if (count > translator->registerCount)
translator->registerCount = count;
}
@@ -91,8 +101,8 @@ size_t translate_parsed(Translated *translated, ParsedValue *parsedValue) {
return translate_parsed_number(translated, (char *)parsedValue->data, 0);
case AST_NULL:
set_registers(translated, 1);
size_t output = push_instruction_code(translated, OP_LOAD_NULL);
push_instruction_code(translated, 0);
size_t output = push_instruction_byte(translated, OP_LOAD_NULL);
push_instruction_byte(translated, 0);
return output;
case AST_FUNCTION:
return translate_parsed_function(translated,