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pcipc.cpp: unmapped memory areas should read as all 1s (nw)

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This commit is contained in:
yz70s 2018-09-17 08:25:31 +02:00
parent 6594ecd489
commit 383eb1b7aa
2 changed files with 15 additions and 1 deletions
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14
src/mame/drivers/pcipc.cpp
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@ -50,6 +50,8 @@ public:
pcipc_state(const machine_config &mconfig, device_type type, const char *tag);
private:
void pcipc_map(address_map &map);
void pcipc_map_io(address_map &map);
DECLARE_WRITE8_MEMBER(boot_state_phoenix_w);
DECLARE_WRITE8_MEMBER(boot_state_phoenix_ver40_rev6_w);
DECLARE_WRITE8_MEMBER(boot_state_award_w);
@ -501,8 +503,20 @@ void pcipc_state::superio_config(device_t *device)
fdc.nrts2().set(":serport1", FUNC(rs232_port_device::write_rts));
}
void pcipc_state::pcipc_map(address_map &map)
{
map.unmap_value_high();
}
void pcipc_state::pcipc_map_io(address_map &map)
{
map.unmap_value_high();
}
MACHINE_CONFIG_START(pcipc_state::pcipc)
MCFG_DEVICE_ADD("maincpu", PENTIUM, 90000000)
MCFG_DEVICE_PROGRAM_MAP(pcipc_map)
MCFG_DEVICE_IO_MAP(pcipc_map_io)
MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("pci:07.0:pic8259_master", pic8259_device, inta_cb)
MCFG_I386_SMIACT(WRITELINE("pci:00.0", i82439hx_host_device, smi_act_w))

2
src/mame/includes/nforcepc.h
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@ -1,5 +1,5 @@
// license:BSD-3-Clause
// copyright-holders:
// copyright-holders: Samuele Zannoli
#ifndef NFORCEPC_H
#define NFORCEPC_H