@@ -16,6 +16,8 @@ typedef signed short Sint16;

 typedef unsigned int Uint32;

 #define PAGE_PROGRAM 0x0100

+#define PAGE_WST 0xfe00

+#define PAGE_RST 0xff00

 /* clang-format off */

@@ -143,7 +143,7 @@ main(int argc, char **argv)

 	shadow = (Uint8 *)calloc(0xffff, sizeof(Uint8));

 	memory = (Uint8 *)calloc(0xffff, sizeof(Uint8));

-	if(!uxn_boot(&u, (Stack *)(shadow + 0x200), (Stack *)(shadow + 0x400), memory))

+	if(!uxn_boot(&u, (Stack *)(shadow + PAGE_WST), (Stack *)(shadow + PAGE_RST), memory))

 		return error("Boot", "Failed");

 	/* system   */ devsystem = uxn_port(&u, 0x0, system_dei, system_deo);

@@ -280,7 +280,7 @@ start(Uxn *u, char *rom)

 	if(!uxn_boot(&hypervisor, (Stack *)(shadow + 0xfc00), (Stack *)(shadow + 0xfd00), shadow))

 		return error("Boot", "Failed to start uxn.");

-	if(!uxn_boot(u, (Stack *)(shadow + 0xfe00), (Stack *)(shadow + 0xff00), memory))

+	if(!uxn_boot(u, (Stack *)(shadow + PAGE_WST), (Stack *)(shadow + PAGE_RST), memory))

 		return error("Boot", "Failed to start uxn.");

 	if(!load(&hypervisor, "hypervisor.rom"))

 		error("Hypervisor", "No debugger found.");