Finished CPU instructions and created ui window.

include/cpu.h

@@ -30,7 +30,9 @@ typedef struct {
     bool stepping;
 
     bool int_master_enabled;
+    bool enabling_ime;
     u8 ie_register;
+    u8 int_flags;
 } cpu_context;
 
 void cpu_init();
@@ -41,6 +43,8 @@ typedef void (*IN_PROC)(cpu_context *);
 IN_PROC inst_get_processor(in_type type);
 
 #define CPU_FLAG_Z BIT(ctx->regs.f, 7)
+#define CPU_FLAG_N BIT(ctx->regs.f, 6)
+#define CPU_FLAG_H BIT(ctx->regs.f, 5)
 #define CPU_FLAG_C BIT(ctx->regs.f, 4)
 
 u16 cpu_read_reg(reg_type rt);
@@ -56,4 +60,7 @@ void fetch_data();
 u8 cpu_get_ie_register();
 void cpu_set_ie_register(u8 ie);
 
-cpu_registers *cpu_get_regs();
+cpu_registers *cpu_get_regs();
+
+u8 cpu_get_int_flags();
+void cpu_set_int_flags(u8 value);

include/emu.h

@@ -5,6 +5,7 @@
 typedef struct {
     bool paused;
     bool running;
+    bool die;
     u64 ticks;
 } emu_context;
 

include/interrupts.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <common.h>
+#include <cpu.h>
+
+typedef enum {
+    IT_VBLANK = 1,
+    IT_LCD_STAT = 2,
+    IT_TIMER = 4,
+    IT_SERIAL = 8,
+    IT_JOYPAD = 16
+} interrupt_type;
+
+void cpu_request_interrupt(interrupt_type t);
+
+void cpu_handle_interrupts(cpu_context *ctx);

include/ui.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <common.h>
+
+static const int SCREEN_WIDTH = 1024;
+static const int SCREEN_HEIGHT = 768;
+
+void ui_init();
+void ui_handle_events();