implemented registers

Readme.org

@@ -0,0 +1,5 @@
+* Chip8 Suite
+
+Emulator and assembler for the Chip8.
+
+See notes taken through the development in [[file:Notes.org][Notes.org]]

include/chip8.h

@@ -3,10 +3,12 @@
 
 #include "config.h"
 #include "mem.h"
+#include "registers.h"
 
 struct chip8
 {
 	struct chip8_memory memory;
+	struct chip8_registers registers;
 };
 
 #endif

include/config.h

@@ -8,4 +8,6 @@
 #define CHIP8_DISPLAY_WIDTH 63
 #define CHIP8_DISPLAY_HEIGHT 32
 
+#define CHIP8_TOTAL_DATA_REGISTERS 16
+
 #endif

include/registers.h

@@ -0,0 +1,16 @@
+#ifndef __REGISTERS_H
+#define __REGISTERS_H
+
+#include "config.h"
+
+struct chip8_registers
+{
+	unsigned char V[CHIP8_TOTAL_DATA_REGISTERS];
+	unsigned short I;
+	unsigned char DT;	 // Delay timer
+	unsigned char ST;	 // Delay timer
+	unsigned short PC; // Program counter
+	unsigned char SP;	 // Stack pointer
+};
+
+#endif