Finished CPU instructions and created ui window.

lib/emu.c

@@ -2,8 +2,15 @@
 #include <stdio.h>
 #include <cart.h>
 #include <cpu.h>
-#include <SDL.h>
-#include <SDL_ttf.h>
+#include <ui.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+#ifdef _UNIX
+#include <pthread.h>
+#include <unistd.h>
+#endif
 
 static emu_context ctx;
 
@@ -11,28 +18,7 @@ emu_context *emu_get_context() {
     return &ctx;
 }
 
-void delay(u32 ms) {
-    SDL_Delay(ms);
-}
-
-int emu_run(int argc, char **argv) {
-    if (argc < 2) {
-        printf("Usage: gbemu <rom_file>\n");
-        return -1;
-    }
-
-    if(!cart_load(argv[1])) {
-        printf("Failed to load ROM file: %s\n", argv[1]);
-        return -2;
-    }
-
-    printf("Cart loaded..\n");
-
-    SDL_Init(SDL_INIT_VIDEO);
-    printf("SDL INIT\n");
-    TTF_Init();
-    printf("TTF INIT\n");
-
+DWORD WINAPI cpu_run(void *p) {
     cpu_init();
 
     ctx.running = true;
@@ -56,6 +42,53 @@ int emu_run(int argc, char **argv) {
     return 0;
 }
 
+void sleep_ms(int milis) {
+#ifdef _WIN32
+    Sleep(milis);
+#endif
+#ifdef _UNIX
+    usleep(milis * 1000);
+#endif
+}
+
+int emu_run(int argc, char **argv) {
+    if (argc < 2) {
+        printf("Usage: gbemu <rom_file>\n");
+        return -1;
+    }
+
+    if(!cart_load(argv[1])) {
+        printf("Failed to load ROM file: %s\n", argv[1]);
+        return -2;
+    }
+
+    printf("Cart loaded..\n");
+
+    ui_init();
+#ifdef _WIN32
+    HANDLE thread = CreateThread(NULL, 0, cpu_run, NULL, 0, NULL);
+    if(!thread) {
+        fprintf(stderr, "Unable to create main CPU thread!\n");
+        return -1;
+    }
+#endif
+#ifdef _UNIX
+    pthread_t t1;
+    if(pthread_create(&t1, NULL, cpu_run, NULL)) {
+        fprintf(stderr, "Unable to create main CPU thread!\n");
+        return -1;
+    }
+#endif
+
+    while(!ctx.die) {
+        sleep_ms(1);
+        ui_handle_events();
+    }
+    
+
+    return 0;
+}
+
 void emu_cycles(int cpu_cycles) {
     //TODO
 }