#define MAC_CLOCK 3686418
+/* Size of whole RAM area */
+#define RAM_SIZE 0x40000000
+
/*
* Slot 0x9 is reserved for use by the in-built framebuffer whilst only
* slots 0xc, 0xd and 0xe physically exist on the Quadra 800
},
};
+static uint64_t ramio_read(void *opaque, hwaddr addr, unsigned size)
+{
+ return 0x0;
+}
+
+static void ramio_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
+{
+ return;
+}
+
+static const MemoryRegionOps ramio_ops = {
+ .read = ramio_read,
+ .write = ramio_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ },
+};
+
static void q800_machine_init(MachineState *machine)
{
Q800MachineState *m = Q800_MACHINE(machine);
qemu_register_reset(main_cpu_reset, &m->cpu);
/* RAM */
- memory_region_add_subregion(get_system_memory(), 0, machine->ram);
+ memory_region_init_io(&m->ramio, OBJECT(machine), &ramio_ops, &m->ramio,
+ "ram", RAM_SIZE);
+ memory_region_add_subregion(get_system_memory(), 0x0, &m->ramio);
+
+ memory_region_add_subregion(&m->ramio, 0, machine->ram);
/*
* Create container for all IO devices