Initial Project Setup

lib/emu.c

@@ -0,0 +1,57 @@
+#include <emu.h>
+#include <stdio.h>
+#include <cart.h>
+#include <cpu.h>
+#include <SDL.h>
+#include <SDL_ttf.h>
+
+static emu_context ctx;
+
+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");
+
+    cpu_init();
+
+    ctx.running = true;
+    ctx.paused = false;
+    ctx.ticks = 0;
+
+    while (ctx.running) {
+        if (ctx.paused) {
+            delay(10);
+            continue;
+        }
+
+        if (!cpu_step()) {
+            printf("CPU stopped\n");
+            return -3;
+        }
+
+        ctx.ticks++;
+    }
+
+    return 0;
+}