formatting

Author: eshyong

chip8.c

@@ -60,7 +60,7 @@ void initialize(chip8 *chip) {
 char c;
 int loop = 1;
 
-printf("Please select a game from the list.\n1.TETRIS\n2.PONG\n");
+printf("Please select a game from the list (enter a number).\n1.TETRIS\n2.PONG\n3.EXIT\n");
 scanf("%c", &c);
 
 while (loop) {
@@ -73,6 +73,9 @@ void initialize(chip8 *chip) {
 file_name = "PONG.bin";
 loop = 0;
 break;
+case '3':
+printf("Exiting emulator...\n");
+exit(0);
 default:
 break;
 }
@@ -94,7 +97,6 @@ int load_file(char *file_name, unsigned char *buffer) {
 int file_size;
 
 // open file stream in binary read-only mode
-// return error if file is too large or cannot be found
 file = fopen(file_name, "rb");
 if (file == NULL) { printf("File not found.\n"); return -1; }
 else {
@@ -104,7 +106,9 @@ int load_file(char *file_name, unsigned char *buffer) {
 printf("ROM size: %d\n", file_size);
 rewind(file);
 
+// return error if file is too large or cannot be found
 if (file_size > MAX_FILE_SIZE) { printf("File is too large to load.\n"); return -1; }
+
 // read program into memory
 fread(buffer, 1, file_size, file);
 return 0;

emulator

@@ -53,17 +53,17 @@ int main(int argc, char *argv[]) {
 
 // initialize orthographic 2D view, among other things
 initGL();
+ 
+// handle key presses and releases
+glutKeyboardFunc(handle_key_press);
+glutKeyboardUpFunc(handle_key_release);
 
 // GLUT draw function
 glutDisplayFunc(render);
 
 // GLUT idle function, causes screen to redraw
 glutIdleFunc(idle);
 
-// handles key presses and releases
-glutKeyboardFunc(handle_key_press);
-glutKeyboardUpFunc(handle_key_release);
-
 // main loop, all events processed here
 glutMainLoop();