/* x1phosura 2021 */

#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "vm.h"

#include "rom.h"  // automatically generated from rom.bin by `make`

char *embedded_msg = "Strings won't save you here...\n";


int main()
{
	char flag_input[21];
	uint8_t *memory = NULL;
	struct CPU cpu;

	// believe me, I _really_ tried to put the below calloc() in vm_init()
	memory = calloc(RAM_SIZE, sizeof(uint8_t));
	if (memory == NULL)
		perror("Failed to allocate memory. Aborting...");

	// src_rom_bin* comes from "rom.h", generated by make from rom.bin
	vm_init(&cpu, memory, src_rom_bin, src_rom_bin_len);
	printf("Fill in the rest of the flag: RS{");
	fgets(flag_input, 20, stdin);
	flag_input[strcspn(flag_input, "\n")] = 0;     // trim trailing newline

	printf("The inputted flag was RS{%s}\n\n", flag_input);
	for (uint8_t i = 0; i < strlen(flag_input); ++i)
		memory[128+i] = (uint8_t)flag_input[i];

	#ifdef TRACE
		printf("[DEBUG MODE]: Running VM in debugger...\n");
	#endif
	vm_run(&cpu, memory);

	uint8_t win = memory[0x30];                 // memory test to see if
	if (win == 7)                               // flag was correct
		printf("YAY, you got the flag!\n");
	else
		printf("Sorry, that's not the flag. Try again!\n");

	free(memory);
	return EXIT_SUCCESS;
}