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-rw-r--r--src/mess/drivers/sacstate.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/src/mess/drivers/sacstate.c b/src/mess/drivers/sacstate.c
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index 00000000000..846c2b38470
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+++ b/src/mess/drivers/sacstate.c
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+/***************************************************************************
+
+ SacState 8008
+
+ 23/02/2009 Skeleton driver.
+
+http://www.digibarn.com/stories/bill-pentz-story/index.html
+
+The year is listed as '1972/73'.
+
+All input to be in lowercase.
+The weird characters that show on screen are various escape sequences.
+These are different depending on the terminal type chosen. The codes
+need to be understood and emulated before this system makes sense.
+
+Known Monitor commands: (from the disassembly)
+! write buffer to AD000
+* set RAM036 flag
++ increment AD000 by 1
++n increment AD000 by n
+- decrement AD000 by 1
+-n decrement AD000 by n
+: clear RAM036 flag
+= display AD000
+=nnn set AD000 to nnn
+@ fill buffer with 026
+
+unknown commands: / & d e l r s t u z \ ^ | ~
+
+Other input will either result in '!' message, or halt.
+
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/i8008/i8008.h"
+#include "machine/terminal.h"
+
+
+class sacstate_state : public driver_device
+{
+public:
+ sacstate_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_terminal(*this, TERMINAL_TAG)
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_terminal_device> m_terminal;
+ DECLARE_READ8_MEMBER(port00_r);
+ DECLARE_READ8_MEMBER(port01_r);
+ DECLARE_READ8_MEMBER(port04_r);
+ DECLARE_WRITE8_MEMBER(port08_w);
+ DECLARE_WRITE8_MEMBER(kbd_put);
+ UINT8 m_term_data;
+ UINT8 m_val;
+ virtual void machine_reset();
+};
+
+READ8_MEMBER( sacstate_state::port01_r )
+{
+ UINT8 ret = m_val;
+ if (m_term_data)
+ ret |= 0x04; // data in
+ return ret;
+}
+
+READ8_MEMBER( sacstate_state::port00_r )
+{
+ UINT8 ret = m_term_data;
+ m_term_data = 0;
+ return ret;
+}
+
+READ8_MEMBER( sacstate_state::port04_r )
+{
+ logerror("unknown_r\n");
+ return 0;
+}
+
+WRITE8_MEMBER( sacstate_state::port08_w )
+{
+ if (data == 0x40)
+ m_val = 0x40;
+ else
+ if (data == 0x04)
+ m_val = 0;
+}
+
+static ADDRESS_MAP_START(sacstate_mem, AS_PROGRAM, 8, sacstate_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x000,0x7ff) AM_ROM
+ AM_RANGE(0x800,0xfff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(sacstate_io, AS_IO, 8, sacstate_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00,0x00) AM_READ(port00_r)
+ AM_RANGE(0x01,0x01) AM_READ(port01_r)
+ AM_RANGE(0x04,0x04) AM_READ(port04_r)
+ AM_RANGE(0x08,0x08) AM_WRITE(port08_w)
+ AM_RANGE(0x16,0x16) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
+ AM_RANGE(0x17,0x1f) AM_WRITENOP
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( sacstate )
+ PORT_START("CONFIG")
+ PORT_CONFNAME( 0x08, 0x08, "Terminal Type") // no idea of actual terminal types
+ PORT_CONFSETTING( 0x00, "A")
+ PORT_CONFSETTING( 0x08, "B")
+INPUT_PORTS_END
+
+WRITE8_MEMBER( sacstate_state::kbd_put )
+{
+ m_term_data = data;
+}
+
+static GENERIC_TERMINAL_INTERFACE( terminal_intf )
+{
+ DEVCB_DRIVER_MEMBER(sacstate_state, kbd_put)
+};
+
+void sacstate_state::machine_reset()
+{
+ m_term_data = 0;
+ m_val = ioport("CONFIG")->read();
+}
+
+static MACHINE_CONFIG_START( sacstate, sacstate_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",I8008, 800000)
+ MCFG_CPU_PROGRAM_MAP(sacstate_mem)
+ MCFG_CPU_IO_MAP(sacstate_io)
+
+ /* video hardware */
+ MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( sacstate )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "sacst1.bin", 0x0700, 0x0100, CRC(ba020160) SHA1(6337cdf65583808768664653c937e50040aec6d4))
+ ROM_LOAD( "sacst2.bin", 0x0600, 0x0100, CRC(26f3e505) SHA1(3526060dbd1bf885c2e686bc9a6082387630952a))
+ ROM_LOAD( "sacst3.bin", 0x0500, 0x0100, CRC(965b3474) SHA1(6d9142e68d375fb000fd6ea48369d0801274ded6))
+ ROM_LOAD( "sacst4.bin", 0x0400, 0x0100, CRC(3cd3e169) SHA1(75a99e8e4dbd6e054209a4979bb498f37e962697))
+ ROM_LOAD( "sacst5.bin", 0x0300, 0x0100, CRC(30619454) SHA1(cb498880bec27c9adc44dc1267858555000452c6))
+ ROM_LOAD( "sacst6.bin", 0x0200, 0x0100, CRC(a4cd2ff6) SHA1(3f4da5510c0778eb770c96c01f91f5cb7f5285fa))
+ ROM_LOAD( "sacst7.bin", 0x0100, 0x0100, CRC(33971d8b) SHA1(9e0bbeef6a6a15107f270e8b285300284ee7f63f))
+ ROM_LOAD( "sacst8.bin", 0x0000, 0x0100, CRC(931252ef) SHA1(e06ea6947f432f0a4ce944de74978d929920fb53))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP( 1973, sacstate, 0, 0, sacstate, sacstate, driver_device, 0, "SacState", "SacState 8008", GAME_NO_SOUND_HW)