@@ -657,6 +657,11 @@ static void q800_machine_init(MachineState *machine)
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
memory_region_add_subregion(get_system_memory(), MACROM_ADDR, &m->rom);
+ memory_region_init_alias(&m->rom_alias, NULL, "m68k_mac.rom-alias",
+ &m->rom, 0, MACROM_SIZE);
+ memory_region_add_subregion(get_system_memory(), 0x40000000,
+ &m->rom_alias);
+
/* Load MacROM binary */
if (filename) {
bios_size = load_image_targphys(filename, MACROM_ADDR, MACROM_SIZE);
@@ -50,6 +50,7 @@ struct Q800MachineState {
bool easc;
M68kCPU cpu;
MemoryRegion rom;
+ MemoryRegion rom_alias;
GLUEState glue;
MOS6522Q800VIA1State via1;
MOS6522Q800VIA2State via2;
According to the Apple Quadra 800 Developer Note document, the Quadra 800 ROM consists of 2 ROM code sections based at offsets 0x0 and 0x800000. A/UX attempts to access the toolbox ROM at the lower offset during startup, so provide a memory alias to allow the access to succeed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> --- hw/m68k/q800.c | 5 +++++ include/hw/m68k/q800.h | 1 + 2 files changed, 6 insertions(+)