+// vram usage map:
+// 000000-044000 fb0
+// 044000-088000 fb1
+// 088000-0cc000 depth (?)
+// 0cc000-126000 emu draw buffers: 512*240 + 512*240*2
+
+#define VRAMOFFS_FB0 0x00000000
+#define VRAMOFFS_FB1 0x00044000
+#define VRAMOFFS_DEPTH 0x00088000
+#define VRAMOFFS_STUFF 0x000cc000
+
+#define VRAM_FB0 ((void *) (0x44000000+VRAMOFFS_FB0))
+#define VRAM_FB1 ((void *) (0x44000000+VRAMOFFS_FB1))
+#define VRAM_STUFF ((void *) (0x44000000+VRAMOFFS_STUFF))
+
+#define VRAM_CACHED_STUFF ((void *) (0x04000000+VRAMOFFS_STUFF))