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Diffstat (limited to 'src/mame/drivers/ampex.cpp')
-rw-r--r--src/mame/drivers/ampex.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/ampex.cpp b/src/mame/drivers/ampex.cpp
index d4d2b27544b..760436fb31b 100644
--- a/src/mame/drivers/ampex.cpp
+++ b/src/mame/drivers/ampex.cpp
@@ -10,6 +10,7 @@ Ampex Dialogue 80 terminal
#include "emu.h"
#include "cpu/i8085/i8085.h"
+#include "machine/6821pia.h"
class ampex_state : public driver_device
{
@@ -29,8 +30,7 @@ static ADDRESS_MAP_START( mem_map, AS_PROGRAM, 8, ampex_state )
AM_RANGE(0x0000, 0x2fff) AM_ROM AM_REGION("roms", 0)
AM_RANGE(0x4000, 0x43ff) AM_RAM // main RAM
AM_RANGE(0x4400, 0x57ff) AM_RAM // expansion RAM
- AM_RANGE(0x5841, 0x5841) AM_WRITENOP // ???
- AM_RANGE(0x5842, 0x5842) AM_READNOP // ???
+ AM_RANGE(0x5840, 0x5843) AM_DEVREADWRITE("pia", pia6821_device, read, write)
AM_RANGE(0x8000, 0x9fff) AM_RAM
AM_RANGE(0xc000, 0xcfff) AM_RAM // video RAM
ADDRESS_MAP_END
@@ -41,6 +41,8 @@ INPUT_PORTS_END
static MACHINE_CONFIG_START( ampex )
MCFG_CPU_ADD("maincpu", I8080A, 2'000'000) // no idea of clock.
MCFG_CPU_PROGRAM_MAP(mem_map)
+
+ MCFG_DEVICE_ADD("pia", PIA6821, 0)
MACHINE_CONFIG_END
ROM_START( dialog80 )