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(MESS) New WORKING system. NEC TK85. [Robbbert, Nama]

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This commit is contained in:
Robbbert 2013-01-12 23:09:03 +00:00
parent d80a7add47
commit 484e42f9f9
2 changed files with 34 additions and 10 deletions
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43
src/mess/drivers/tk80bs.c
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@ -12,6 +12,10 @@ TK80 (Training Kit 80) considered to be Japan's first home computer.
It consisted of 25 keys and 8 LED digits, and was programmed in hex.
The Mikrolab is a Russian clone which appears to be almost completely identical.
TK85 seems to be the same as TK80, except is has a larger ROM. No
schematics etc are available. Thanks to 'Nama' who dumped the rom.
It has 25 keys, so a few aren't defined yet.
When booted, the system begins at 0000 which is ROM. You need to change the
address to 8000 before entering a program. Here is a test to paste in:
8000-11^22^33^44^55^66^77^88^99^8000-
@ -58,12 +62,9 @@ public:
tk80bs_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_ppi8255_2(*this, "ppi8255_2")
,
m_p_videoram(*this, "p_videoram"){ }
m_ppi8255_2(*this, "ppi8255_2"),
m_p_videoram(*this, "videoram"){ }
required_device<cpu_device> m_maincpu;
optional_device<i8255_device> m_ppi8255_2;
DECLARE_READ8_MEMBER(ppi_custom_r);
DECLARE_WRITE8_MEMBER(ppi_custom_w);
DECLARE_READ8_MEMBER(key_matrix_r);
@ -76,7 +77,6 @@ public:
DECLARE_READ8_MEMBER(port_a_r);
DECLARE_READ8_MEMBER(port_b_r);
UINT8 m_term_data;
optional_shared_ptr<UINT8> m_p_videoram;
UINT8 m_keyb_press;
UINT8 m_keyb_press_flag;
UINT8 m_shift_press_flag;
@ -86,6 +86,9 @@ public:
DECLARE_MACHINE_RESET(tk80bs);
DECLARE_VIDEO_START(tk80bs);
UINT32 screen_update_tk80bs(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
required_device<cpu_device> m_maincpu;
optional_device<i8255_device> m_ppi8255_2;
optional_shared_ptr<UINT8> m_p_videoram;
};
/************************************************* TK80 ******************************************/
@ -109,6 +112,14 @@ static ADDRESS_MAP_START(tk80_mem, AS_PROGRAM, 8, tk80bs_state)
AM_RANGE(0x83f8, 0x83ff) AM_RAM AM_READWRITE(display_r,display_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START(tk85_mem, AS_PROGRAM, 8, tk80bs_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0x87ff) // A10-14 not connected
AM_RANGE(0x0000, 0x07ff) AM_ROM
AM_RANGE(0x8000, 0x83f7) AM_RAM
AM_RANGE(0x83f8, 0x83ff) AM_RAM AM_READWRITE(display_r,display_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START(tk80_io, AS_IO, 8, tk80bs_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff) // possibly should be 3
@ -248,12 +259,18 @@ MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( mikrolab, tk80 )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(tk85_mem)
MCFG_CPU_IO_MAP(mikrolab_io)
/* Devices */
MCFG_DEVICE_REMOVE("ppi8255_0")
MCFG_I8255_ADD( "ppi8255_1", ppi8255_intf_1 )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( tk85, tk80 )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(tk85_mem)
MACHINE_CONFIG_END
/************************************************* TK80BS ****************************************/
VIDEO_START_MEMBER(tk80bs_state,tk80bs)
@ -315,7 +332,7 @@ static ADDRESS_MAP_START(tk80bs_mem, AS_PROGRAM, 8, tk80bs_state)
// AM_RANGE(0x0c00, 0x7bff) AM_ROM // ext
AM_RANGE(0x7df8, 0x7df9) AM_NOP // i8251 sio
AM_RANGE(0x7dfc, 0x7dff) AM_READWRITE(ppi_custom_r,ppi_custom_w)
AM_RANGE(0x7e00, 0x7fff) AM_RAM AM_SHARE("p_videoram") // video ram
AM_RANGE(0x7e00, 0x7fff) AM_RAM AM_SHARE("videoram") // video ram
AM_RANGE(0x8000, 0xcfff) AM_RAM // RAM
AM_RANGE(0xd000, 0xefff) AM_ROM // BASIC
AM_RANGE(0xf000, 0xffff) AM_ROM // BSMON
@ -433,6 +450,11 @@ ROM_START( mikrolab )
ROM_LOAD( "rom-2.bin", 0x0200, 0x0200, BAD_DUMP CRC(726a224f) SHA1(7ed8d2c6dd4fb7836475e207e1972e33a6a91d2f))
ROM_END
ROM_START( nectk85 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "tk85.bin", 0x0000, 0x0800, CRC(8a0b6d7e) SHA1(6acc8c04990692b08929043ccf638761b7301def))
ROM_END
ROM_START( tk80bs )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
/* all of these aren't taken from an original machine*/
@ -461,6 +483,7 @@ ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1976, tk80, 0, 0, tk80, tk80, driver_device, 0, "Nippon Electronic Company", "TK-80", GAME_NO_SOUND_HW)
COMP( 1980, tk80bs, tk80, 0, tk80bs, tk80bs, driver_device, 0, "Nippon Electronic Company", "TK-80BS", GAME_NOT_WORKING | GAME_NO_SOUND_HW)
COMP( 19??, mikrolab, tk80, 0, mikrolab, mikrolab, driver_device, 0, "<unknown>", "Mikrolab KR580IK80", GAME_NO_SOUND_HW)
COMP( 1976, tk80, 0, 0, tk80, tk80, driver_device, 0, "Nippon Electronic Company", "TK-80", GAME_NO_SOUND_HW)
COMP( 1980, tk80bs, tk80, 0, tk80bs, tk80bs, driver_device, 0, "Nippon Electronic Company", "TK-80BS", GAME_NOT_WORKING | GAME_NO_SOUND_HW)
COMP( 19??, nectk85, tk80, 0, tk85, tk80, driver_device, 0, "Nippon Electronic Company", "TK-85", GAME_NO_SOUND_HW)
COMP( 19??, mikrolab, tk80, 0, mikrolab, mikrolab, driver_device, 0, "<unknown>", "Mikrolab KR580IK80", GAME_NO_SOUND_HW)

1
src/mess/mess.lst
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@ -2193,3 +2193,4 @@ modellot
tim100
pencil2
br8641
nectk85