replace magic numbers with constants

1 files changed, 6 insertions, 0 deletions

diff --git a/chip8.h b/chip8.h
index e16274d..6779567 100644
--- a/chip8.h
+++ b/chip8.h
@@ -12,8 +12,14 @@
 #define HEIGHT 32
 #define KEY_SIZE 15
 #define MEMORY_SIZE 4096
+#define REGISTER_COUNT 16
 #define STACK_SIZE 16
 #define MAX_ROM_SIZE 0x1000 - 0x200 // memory size - reserved memory
+#define PROGRAM_START 0x200
+#define FONT_WIDTH 5
+#define FONT_BYTE_SIZE 80
+#define BYTE_MASK 0x80
+#define PIXEL_COLOR 0xFFFFFF
 
 int load_rom();
 void chip8_init();