diff options
Diffstat (limited to 'src/mess/drivers/swtpc.c')
-rw-r--r-- | src/mess/drivers/swtpc.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/src/mess/drivers/swtpc.c b/src/mess/drivers/swtpc.c deleted file mode 100644 index cb2c032193c..00000000000 --- a/src/mess/drivers/swtpc.c +++ /dev/null @@ -1,135 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert -/*************************************************************************** - - SWTPC 6800 - - 10/12/2009 Skeleton driver. - - http://www.swtpc.com/mholley/swtpc_6800.htm - - bios 0 (SWTBUG) is made for a PIA (parallel) interface. - bios 1 (MIKBUG) is made for a ACIA (serial) interface at the same address. - MIKBUG will actually read the bits as they arrive and assemble a byte. - - Since the interface is optional, it is not on the schematics, so I've - looked at the code and come up with something horrible that works. - - Note: All commands must be in uppercase. See the SWTBUG manual. - - ToDo: - - Add PIA and work out the best way to hook up the keyboard. As can be - seen from the code below, it might be tricky. - - - Finish conversion to modern. - -Commands: -B Breakpoint -C Clear screen -D Disk boot -E End of tape -F Find a byte -G Goto -J Jump -L Ascii Load -M Memory change (enter to quit, - to display next byte) -O Optional Port -P Ascii Punch -R Register dump -Z Goto Prom (0xC000) - -****************************************************************************/ - -#include "emu.h" -#include "cpu/m6800/m6800.h" -#include "machine/terminal.h" - -#define TERMINAL_TAG "terminal" - -class swtpc_state : public driver_device -{ -public: - swtpc_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(swtpc_status_r); - DECLARE_READ8_MEMBER(swtpc_terminal_r); - DECLARE_READ8_MEMBER(swtpc_tricky_r); - DECLARE_WRITE8_MEMBER(swtpc_terminal_w); - DECLARE_WRITE8_MEMBER(kbd_put); - UINT8 m_term_data; - virtual void machine_reset(); -}; - -// bit 0 - ready to receive a character; bit 1 - ready to send a character to the terminal -READ8_MEMBER( swtpc_state::swtpc_status_r ) -{ - return (m_term_data) ? 3 : 0x82; -} - -READ8_MEMBER( swtpc_state::swtpc_terminal_r ) -{ - UINT8 ret = m_term_data; - m_term_data = 0; - return ret; -} - -READ8_MEMBER( swtpc_state::swtpc_tricky_r ) -{ - UINT8 ret = m_term_data; - return ret; -} - -static ADDRESS_MAP_START(swtpc_mem, AS_PROGRAM, 8, swtpc_state) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE( 0x8004, 0x8004 ) AM_READ(swtpc_status_r) - AM_RANGE( 0x8005, 0x8005 ) AM_READ(swtpc_terminal_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) - AM_RANGE( 0x8007, 0x8007 ) AM_READ(swtpc_tricky_r) - AM_RANGE( 0xa000, 0xa07f ) AM_RAM - AM_RANGE( 0xe000, 0xe3ff ) AM_MIRROR(0x1c00) AM_ROM -ADDRESS_MAP_END - -/* Input ports */ -static INPUT_PORTS_START( swtpc ) -INPUT_PORTS_END - - -void swtpc_state::machine_reset() -{ -} - -WRITE8_MEMBER( swtpc_state::kbd_put ) -{ - m_term_data = data; -} - -static MACHINE_CONFIG_START( swtpc, swtpc_state ) - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", M6800, XTAL_1MHz) - MCFG_CPU_PROGRAM_MAP(swtpc_mem) - - - /* video hardware */ - MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) - MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(swtpc_state, kbd_put)) -MACHINE_CONFIG_END - -/* ROM definition */ -ROM_START( swtpc ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_SYSTEM_BIOS( 0, "swt", "SWTBUG" ) - ROMX_LOAD( "swtbug.bin", 0xe000, 0x0400, CRC(f9130ef4) SHA1(089b2d2a56ce9526c3e78ce5d49ce368b9eabc0c), ROM_BIOS(1)) - ROM_SYSTEM_BIOS( 1, "mik", "MIKBUG" ) - ROMX_LOAD( "mikbug.bin", 0xe000, 0x0400, CRC(e7f4d9d0) SHA1(5ad585218f9c9c70f38b3c74e3ed5dfe0357621c), ROM_BIOS(2)) -ROM_END - -/* Driver */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP( 1975, swtpc, 0, 0, swtpc, swtpc, driver_device, 0, "Southwest Technical Products Corporation", "SWTPC 6800", MACHINE_NO_SOUND) |