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Diffstat (limited to 'src/mame/drivers/pm68k.c')
-rw-r--r--src/mame/drivers/pm68k.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/src/mame/drivers/pm68k.c b/src/mame/drivers/pm68k.c
new file mode 100644
index 00000000000..8aac2f9f853
--- /dev/null
+++ b/src/mame/drivers/pm68k.c
@@ -0,0 +1,104 @@
+// license:BSD-3-Clause
+// copyright-holders:Robbbert
+/***************************************************************************
+
+Callan PM68K Unix mainframe.
+
+2013-09-04 Skeleton driver
+
+Status: Boots into monitor, some commands work, some freeze.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/m68000/m68000.h"
+#include "machine/terminal.h"
+
+#define TERMINAL_TAG "terminal"
+
+class pm68k_state : public driver_device
+{
+public:
+ pm68k_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_p_base(*this, "rambase"),
+ m_maincpu(*this, "maincpu"),
+ m_terminal(*this, TERMINAL_TAG)
+ {
+ }
+
+ DECLARE_WRITE8_MEMBER(kbd_put);
+ DECLARE_READ16_MEMBER(keyin_r);
+ DECLARE_READ16_MEMBER(status_r);
+private:
+ UINT8 m_term_data;
+ virtual void machine_reset();
+ required_shared_ptr<UINT16> m_p_base;
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_terminal_device> m_terminal;
+};
+
+READ16_MEMBER( pm68k_state::keyin_r )
+{
+ UINT16 ret = m_term_data;
+ m_term_data = 0;
+ return ret << 8;
+}
+
+READ16_MEMBER( pm68k_state::status_r )
+{
+ return (m_term_data) ? 0x500 : 0x400;
+}
+
+
+static ADDRESS_MAP_START(pm68k_mem, AS_PROGRAM, 16, pm68k_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xffffff)
+ AM_RANGE(0x000000, 0x1fffff) AM_RAM AM_SHARE("rambase")
+ AM_RANGE(0x200000, 0x205fff) AM_ROM AM_REGION("maincpu", 0)
+ AM_RANGE(0x600000, 0x600001) AM_READ(keyin_r) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff00)
+ AM_RANGE(0x600002, 0x600003) AM_READ(status_r)
+ADDRESS_MAP_END
+
+
+/* Input ports */
+static INPUT_PORTS_START( pm68k )
+INPUT_PORTS_END
+
+
+void pm68k_state::machine_reset()
+{
+ UINT8* ROM = memregion("maincpu")->base();
+ memcpy(m_p_base, ROM, 8);
+ m_maincpu->reset();
+}
+
+WRITE8_MEMBER( pm68k_state::kbd_put )
+{
+ m_term_data = data;
+}
+
+static MACHINE_CONFIG_START( pm68k, pm68k_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68000, 8000000)
+ MCFG_CPU_PROGRAM_MAP(pm68k_mem)
+
+ /* video hardware */
+ MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
+ MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(pm68k_state, kbd_put))
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( pm68k )
+ ROM_REGION16_BE(0x6000, "maincpu", 0)
+ ROM_LOAD16_BYTE("u103", 0x00000, 0x1000, CRC(86d32d6c) SHA1(ce9c54b62c64c37ae9106fb06b8a2b2152d1ddf6) )
+ ROM_LOAD16_BYTE("u101", 0x00001, 0x1000, CRC(66607e54) SHA1(06f380fdeba13dc3aee826dd166f4bd3031febb9) )
+ ROM_LOAD16_BYTE("u104", 0x02000, 0x2000, CRC(ccd2ba4d) SHA1(5cdcf875e136aa9af5f150e0102cd209c496885e) )
+ ROM_LOAD16_BYTE("u102", 0x02001, 0x2000, CRC(48182abd) SHA1(a6e4fb62c5f04cb397c6c3294723ec1f7bc3b680) )
+ROM_END
+
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP( 198?, pm68k, 0, 0, pm68k, pm68k, driver_device, 0, "Callan Data Systems", "PM68K", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )