diff options
-rw-r--r-- | src/mess/drivers/pc2000.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/mess/drivers/pc2000.c b/src/mess/drivers/pc2000.c index 728b9370adb..5b846a537b3 100644 --- a/src/mess/drivers/pc2000.c +++ b/src/mess/drivers/pc2000.c @@ -741,8 +741,10 @@ INPUT_PORTS_END void pc2000_state::machine_start() { astring region_tag; - UINT8 *cart = memregion(region_tag.cpy(m_cart->tag()).cat(GENERIC_ROM_REGION_TAG))->base(); UINT8 *bios = memregion("bios")->base(); + UINT8 *cart = memregion(region_tag.cpy(m_cart->tag()).cat(GENERIC_ROM_REGION_TAG))->base(); + if (!cart) + cart = memregion("bios")->base(); m_bank0->configure_entries(0, 0x10, bios, 0x4000); m_bank1->configure_entries(0, 0x10, bios, 0x4000); @@ -753,9 +755,11 @@ void pc2000_state::machine_start() void gl4004_state::machine_start() { astring region_tag; - UINT8 *cart = memregion(region_tag.cpy(m_cart->tag()).cat(GENERIC_ROM_REGION_TAG))->base(); UINT8 *bios = memregion("bios")->base(); - + UINT8 *cart = memregion(region_tag.cpy(m_cart->tag()).cat(GENERIC_ROM_REGION_TAG))->base(); + if (!cart) + cart = memregion("bios")->base(); + m_bank0->configure_entries(0, 0x20, bios, 0x4000); m_bank1->configure_entries(0, 0x20, bios, 0x4000); m_bank2->configure_entries(0, 0x20, bios, 0x4000); |