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author | 2012-08-21 10:41:19 +0000 | |
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committer | 2012-08-21 10:41:19 +0000 | |
commit | 7285b359d259b2ae0fdf85096571c386ec8c991a (patch) | |
tree | a027aff57f1a255f9ec6cfd3b68cabe4b6683998 /src/mess/drivers/sacstate.c | |
parent | 67c425e90757876a6716b7867df30c0149912e74 (diff) |
Merge of MESS sources (no whatsnew)
Diffstat (limited to 'src/mess/drivers/sacstate.c')
-rw-r--r-- | src/mess/drivers/sacstate.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/mess/drivers/sacstate.c b/src/mess/drivers/sacstate.c new file mode 100644 index 00000000000..846c2b38470 --- /dev/null +++ b/src/mess/drivers/sacstate.c @@ -0,0 +1,158 @@ +/*************************************************************************** + + 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) |