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-rw-r--r--hw/m68k/q800.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c
index e4c7c9b88a..55dfe5036f 100644
--- a/hw/m68k/q800.c
+++ b/hw/m68k/q800.c
@@ -672,12 +672,13 @@ static void q800_init(MachineState *machine)
/* Remove qtest_enabled() check once firmware files are in the tree */
if (!qtest_enabled()) {
- if (bios_size < 0 || bios_size > MACROM_SIZE) {
+ if (bios_size <= 0 || bios_size > MACROM_SIZE) {
error_report("could not load MacROM '%s'", bios_name);
exit(1);
}
- ptr = rom_ptr(MACROM_ADDR, MACROM_SIZE);
+ ptr = rom_ptr(MACROM_ADDR, bios_size);
+ assert(ptr != NULL);
stl_phys(cs->as, 0, ldl_p(ptr)); /* reset initial SP */
stl_phys(cs->as, 4,
MACROM_ADDR + ldl_p(ptr + 4)); /* reset initial PC */