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https://github.com/holub/mame
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- WIP can09 a non working driver for the Candela main computer, a 6809 based design with FDC and a 6850 CRTC
- WIP can09t a somewhat working driver for the Candela terminal, a slimmer version without FDC and with a terminal interface
This commit is contained in:
Joakim Larsson Edstrom
parent
7486202939
commit
bf9250946d
@ -9,39 +9,54 @@
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* Esselte 100 and the Candela computer for the swedish schools to educate the students in assembly programming
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* and BASIC for electro mechanical applications such as stepper motors, simple process control, buttons
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* and LED:s. Didact designs were marketed by Esselte Studium to the swedish schools. The Candela computer
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* was designed to be the big breakthough and was based on OS9 but lost the battle of the swedish schools to
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* the Compis computer by TeleNova which was based on CP/M initially but later both lost to IBM PC. There was
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* also an Esselte 1000 which was an educational package based on Apple II plus software and litterature.
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* was designed to be the big breakthough and developed by Candela Data AB, "a Didact Company". The Candela
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* system was based around a main unit that could run OS-9 or Flex and a terminal unit that had a propietary
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* software including CDBASIC. The Candela system lost the battle of the swedish schools to
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* the Compis computer by TeleNova which was based on CP/M initially. Later both lost to IBM PC as we know.
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* Candela Data continued to sell their system to the swedish industry without major successes despite great
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* innovation and spririt.
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*
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* The Esselte 1000 was an educational package based on Apple II plus software and litterature
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* but the relation to Didact is at this point unknown so it is probably a pure Esselte software production.
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*
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* Misc links about the boards supported by this driver.
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*-----------------------------------------------------
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* http://frakaday.blogspot.com/p/candela.html
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* http://elektronikforumet.com/forum/viewtopic.php?f=11&t=51424
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* http://kilroy71.fastmail.fm/gallery/Miscellaneous/20120729_019.jpg
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* http://elektronikforumet.com/forum/download/file.php?id=63988&mode=view
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* http://elektronikforumet.com/forum/viewtopic.php?f=2&t=79576&start=150#p1203915
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*
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* TODO:
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* Didact designs: mp68a, md6802, Modulab, Esselte 100, Candela
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* Didact designs: mp68a, md6802, Modulab, Esselte 100, can09t, can09
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* --------------------------------------------------------------------------
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* - Add PCB layouts OK OK OK
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* - Dump ROM:s, OK OK rev2
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* - Keyboard OK OK rev2
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* - Display/CRT OK OK OK
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* - Add PCB layouts OK OK OK OK
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* - Dump ROM:s, OK OK rev2 OK OK
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* - Keyboard OK OK rev2
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* - Display/CRT OK OK OK
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* - Clickable Artwork RQ RQ
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* - Sound NA NA
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* - Cassette i/f OK
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* - Expansion bus
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* - Expansion overlay
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* - Interrupts OK OK
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* - Serial XX XX
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* - Serial XX XX OK
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* XX = needs debug
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****************************************************************************/
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#include "emu.h"
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#include "cpu/m6800/m6800.h"
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#include "cpu/m6800/m6800.h" // For mp68a, md6802 and e100
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#include "cpu/m6809/m6809.h" // For candela
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#include "machine/6821pia.h" // For all boards
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#include "machine/6840ptm.h" // For candela
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#include "machine/6850acia.h"// For candela
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#include "video/mc6845.h" // For candela
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#include "machine/wd_fdc.h" // For candela
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#include "machine/clock.h" // For candela
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#include "machine/ram.h" // For candela
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#include "video/dm9368.h" // For the mp68a
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#include "machine/74145.h" // For the md6802 and e100
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// Features
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#include "imagedev/cassette.h"
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#include "bus/rs232/rs232.h"
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// Generated artwork includes
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@ -51,9 +66,9 @@
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#define VERBOSE 0
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#define LOGPRINT(x) do { if (VERBOSE) logerror x; } while (0)
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#define LOG(x) {}
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#define LOG(x) LOGPRINT(x)
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#define LOGSCAN(x) {}
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#define LOGSER(x) LOGPRINT(x)
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#define LOGSER(x) {}
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#define LOGSCREEN(x) {}
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#define RLOG(x) {}
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#define LOGCS(x) {}
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@ -70,6 +85,8 @@
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#define PIA1_TAG "pia1"
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#define PIA2_TAG "pia2"
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#define PIA3_TAG "pia3"
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#define PIA4_TAG "pia4"
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/* Didact base class */
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class didact_state : public driver_device
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@ -263,6 +280,14 @@ void md6802_state::machine_reset()
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m_maincpu->reset();
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}
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// This address map is traced from schema
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static ADDRESS_MAP_START( md6802_map, AS_PROGRAM, 8, md6802_state )
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AM_RANGE(0x0000, 0x07ff) AM_RAM AM_MIRROR(0x1800)
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AM_RANGE(0xa000, 0xa003) AM_DEVREADWRITE(PIA1_TAG, pia6821_device, read, write) AM_MIRROR(0x1ffc)
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AM_RANGE(0xc000, 0xc003) AM_DEVREADWRITE(PIA2_TAG, pia6821_device, read, write) AM_MIRROR(0x1ffc)
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AM_RANGE(0xe000, 0xe7ff) AM_ROM AM_MIRROR(0x1800) AM_REGION("maincpu", 0xe000)
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ADDRESS_MAP_END
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/*
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* ___________________________________________________________________________________________________________ _____________________________________________________
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* | The Didact Mp68A CPU board, by Anders Andersson 1979 | |The Didact Mp68A keypad/display PB6 +oooo+ |
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@ -445,6 +470,15 @@ void mp68a_state::machine_start()
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save_item(NAME(m_reset));
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}
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// This address map is traced from pcb
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static ADDRESS_MAP_START( mp68a_map, AS_PROGRAM, 8, mp68a_state )
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AM_RANGE(0x0000, 0x00ff) AM_RAM AM_MIRROR(0xf000)
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AM_RANGE(0x0500, 0x0503) AM_DEVREADWRITE(PIA1_TAG, pia6820_device, read, write) AM_MIRROR(0xf0fc)
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AM_RANGE(0x0600, 0x0603) AM_DEVREADWRITE(PIA2_TAG, pia6820_device, read, write) AM_MIRROR(0xf0fc)
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AM_RANGE(0x0700, 0x07ff) AM_RAM AM_MIRROR(0xf000)
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AM_RANGE(0x0800, 0x0bff) AM_ROM AM_MIRROR(0xf400) AM_REGION("maincpu", 0x0800)
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ADDRESS_MAP_END
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/* __________________________________________________________________________________________________________________________________________
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* | The Didact Esselte 100 CPU board rev1, 14/8 1980 in-PCB coil +----
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* | +--+ +--+ +--+ +--+ +--+ +--+ +--------+ |VHF
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@ -781,24 +815,312 @@ static ADDRESS_MAP_START( e100_map, AS_PROGRAM, 8, e100_state )
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AM_RANGE(0xd000, 0xffff) AM_ROM AM_REGION("roms", 0x1000)
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ADDRESS_MAP_END
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// This address map is traced from schema
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static ADDRESS_MAP_START( md6802_map, AS_PROGRAM, 8, md6802_state )
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AM_RANGE(0x0000, 0x07ff) AM_RAM AM_MIRROR(0x1800)
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AM_RANGE(0xa000, 0xa003) AM_DEVREADWRITE(PIA1_TAG, pia6821_device, read, write) AM_MIRROR(0x1ffc)
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AM_RANGE(0xc000, 0xc003) AM_DEVREADWRITE(PIA2_TAG, pia6821_device, read, write) AM_MIRROR(0x1ffc)
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AM_RANGE(0xe000, 0xe7ff) AM_ROM AM_MIRROR(0x1800) AM_REGION("maincpu", 0xe000)
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/*
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* The CAN09 v1.4 CPU board The CAN09 ROM and AD/DA board
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* +-------------------------------------------------------------+ ___ +----------------------------------------------------------+
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* +-+ +---+ +------+ +-----++-----+ +-----++-----+ |_| | +-+ +-----++-----++-----++-----++-----++-----+ |
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* | | |RST| | | | ROM || |+---+| RAM || | +--+ | | | | |J2 |PROM7||PROM6||PROM5||PROM4||PROM3||PROM2| +---+ |
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* | | +---+ | | |27256||62256||74 ||58256||62256| |CN| | | | | | |empty||empty||empty||empty||empty||empty| |74 | |
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* | | O | 6809 | | MON ||empty||245|| ||empty| |J7| | | | | | o| || || || || || | |393| |
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* | | J2O | | | 58B || || || || | | | | | | | | o| || || || || || | | | |
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* | | O | | | || || || || | | | | | | | | o+-----++-----++-----++-----++-----++-----+ +---+ |
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* | | O | | +-----++-----++---++-----++-----+ +--+ | |EUR| | | o ______ +---+ |
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* | |J1 O | | +-------+ +-----+ +-----+ | | | | | oJ1 | 74138| |74 | |
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* +-+ O | | | 74138 | | | | | | |CN | +-+ o +------+ |393| |
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* +-+ O +-+------+ +-------+ +-----+| | | | | |J4 | J4|8 o +-----------------+ +-----------------+ | | |
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* | |J6 O |74165 | +--++-----+| || PIA | | PIA | | | | |8 o | PIA 6821 | | PIA 6821 | +---+ |
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* | | O +------+ +---+|CN|| || PTM || 6821| | 6821| | | | +-+ o | | | | |
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* | | O VR1 VR2 |82S||J8|| || 6840|| | | | | | | | | o +-----------------+ +-----------------+ |
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* | | O +------+ |123|| ||ACIA || || | | | | | | | | o +-------++-------+ +--------+ +--------+ |
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* +-+ O |7405 | | || || 6850|| || | | | | | | | | o |MPD1603|| 14051 | | TL501 | | 74LS02 | |
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* _=== +------+ ++--++--+| || || | | | | | | | | +-------++-------+ +--------+ +--------+ |
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* comp _|= |74132 | | 7400 |+----+++-----++-----+ +-----+ |_| | | |J3 +-------+ +---------+ +----------+ |
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* video === +------+ +------+ |MAX232 | | |___| +-+ |MC34004| |AD7528 | |ADC0820 | |
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* +----------------------------------+-------+------------------+ +----------+-------+-------+---------+--+----------+-------+
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*
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*/
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/*
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* Candela Terminal
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* TODO:
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* - Map additional PIA:s on the ROM board
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* - ROM/RAM paging by using the PIA:s, now static address map but CDBASIC RLOAD doesn't work for instance
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* - Vram and screen
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* - Keyboard
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* - LCD
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* - AD/DA support for related BASIC functions
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* - Promett rom cartridge support
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*/
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/* Candela terminal driver class */
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class can09t_state : public didact_state
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{
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public:
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can09t_state(const machine_config &mconfig, device_type type, const char * tag)
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: didact_state(mconfig, type, tag)
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,m_maincpu(*this, "maincpu")
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,m_pia1(*this, PIA1_TAG)
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,m_pia2(*this, PIA2_TAG)
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,m_pia3(*this, PIA3_TAG)
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,m_pia4(*this, PIA4_TAG)
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,m_ptm(*this, "ptm")
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,m_acia(*this, "acia")
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#if 0
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,m_io_line5(*this, "LINE5")
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,m_io_line6(*this, "LINE6")
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,m_io_line7(*this, "LINE7")
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,m_io_line8(*this, "LINE8")
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,m_io_line9(*this, "LINE9")
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#endif
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{ }
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required_device<cpu_device> m_maincpu;
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virtual void machine_reset() override { m_maincpu->reset(); LOG(("--->%s()\n", FUNCNAME)); };
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virtual void machine_start() override { LOG(("%s()\n", FUNCNAME)); };
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DECLARE_READ8_MEMBER( pia1_A_r );
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DECLARE_READ8_MEMBER( pia1_B_r );
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DECLARE_WRITE8_MEMBER( pia1_B_w );
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DECLARE_WRITE_LINE_MEMBER( pia1_cb2_w);
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DECLARE_WRITE_LINE_MEMBER( pia2_cb2_w);
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DECLARE_WRITE_LINE_MEMBER (write_acia_clock);
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protected:
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required_device<pia6821_device> m_pia1;
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required_device<pia6821_device> m_pia2;
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required_device<pia6821_device> m_pia3;
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required_device<pia6821_device> m_pia4;
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required_device<ptm6840_device> m_ptm;
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required_device<acia6850_device> m_acia;
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#if 0
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required_ioport m_io_line5;
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required_ioport m_io_line6;
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required_ioport m_io_line7;
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required_ioport m_io_line8;
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required_ioport m_io_line9;
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#endif
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};
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READ8_MEMBER( can09t_state::pia1_A_r )
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{
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LOG(("%s()\n", FUNCNAME));
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return 0;
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}
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READ8_MEMBER( can09t_state::pia1_B_r )
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{
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LOG(("%s()\n", FUNCNAME));
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return 0;
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}
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WRITE8_MEMBER( can09t_state::pia1_B_w )
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{
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LOG(("%s(%02x)\n", FUNCNAME, data));
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}
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WRITE_LINE_MEMBER(can09t_state::pia1_cb2_w)
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{
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LOG(("%s(%02x)\n", FUNCNAME, state));
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}
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WRITE_LINE_MEMBER(can09t_state::pia2_cb2_w)
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{
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LOG(("%s(%02x)\n", FUNCNAME, state));
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}
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WRITE_LINE_MEMBER (can09t_state::write_acia_clock){
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m_acia->write_txc (state);
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m_acia->write_rxc (state);
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}
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// traced and guessed from pcb images and debugger
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// It is very likelly that this is a PIA based dynamic address map, needs more analysis
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static ADDRESS_MAP_START( can09t_map, AS_PROGRAM, 8, can09t_state )
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AM_RANGE(0x0000, 0x7fff) AM_ROM AM_REGION("roms", 0)
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AM_RANGE(0x8000, 0xafff) AM_RAM
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AM_RANGE(0xb100, 0xb100) AM_DEVREADWRITE("acia", acia6850_device, status_r, control_w)
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AM_RANGE(0xb101, 0xb101) AM_DEVREADWRITE("acia", acia6850_device, data_r, data_w)
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AM_RANGE(0xb110, 0xb113) AM_DEVREADWRITE(PIA1_TAG, pia6821_device, read_alt, write_alt)
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AM_RANGE(0xb120, 0xb123) AM_DEVREADWRITE(PIA2_TAG, pia6821_device, read_alt, write_alt)
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AM_RANGE(0xb130, 0xb137) AM_DEVREADWRITE("ptm", ptm6840_device, read, write)
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AM_RANGE(0xb200, 0xc1ff) AM_ROM AM_REGION("roms", 0x3200)
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AM_RANGE(0xc200, 0xdfff) AM_RAM /* Needed for BASIC etc */
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AM_RANGE(0xe000, 0xffff) AM_ROM AM_REGION("roms", 0x6000)
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ADDRESS_MAP_END
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// This address map is traced from pcb
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static ADDRESS_MAP_START( mp68a_map, AS_PROGRAM, 8, mp68a_state )
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AM_RANGE(0x0000, 0x00ff) AM_RAM AM_MIRROR(0xf000)
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AM_RANGE(0x0500, 0x0503) AM_DEVREADWRITE(PIA1_TAG, pia6820_device, read, write) AM_MIRROR(0xf0fc)
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AM_RANGE(0x0600, 0x0603) AM_DEVREADWRITE(PIA2_TAG, pia6820_device, read, write) AM_MIRROR(0xf0fc)
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AM_RANGE(0x0700, 0x07ff) AM_RAM AM_MIRROR(0xf000)
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AM_RANGE(0x0800, 0x0bff) AM_ROM AM_MIRROR(0xf400) AM_REGION("maincpu", 0x0800)
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static INPUT_PORTS_START( can09t )
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PORT_START("LINE0")
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PORT_START("LINE1")
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PORT_START("LINE2")
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PORT_START("LINE3")
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PORT_START("LINE4")
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INPUT_PORTS_END
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/*
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* Candela Main Unit
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* TODO:
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* - Map PIA:S
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* - ROM/RAM paging by using the PIA:s and the myriad of 74138:s on the board
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* - Vram and screen for the 6845 CRTC
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* - Keyboard
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* - Serial port
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* - Floppy controller
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* - Split out commonalities in a candela_state base class for can09 and can09t
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*/
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/* Candela main unit driver class */
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class can09_state : public didact_state
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{
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public:
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can09_state(const machine_config &mconfig, device_type type, const char * tag)
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: didact_state(mconfig, type, tag)
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,m_maincpu(*this, "maincpu")
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,m_pia1(*this, PIA1_TAG)
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,m_ram(*this, RAM_TAG)
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,m_bank1(*this, "bank1")
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,m_crtc(*this, "crtc")
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{ }
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required_device<cpu_device> m_maincpu;
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virtual void machine_reset() override;
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virtual void machine_start() override;
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DECLARE_READ8_MEMBER( pia1_A_r );
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DECLARE_WRITE8_MEMBER( pia1_A_w );
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DECLARE_READ8_MEMBER( pia1_B_r );
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DECLARE_WRITE8_MEMBER( pia1_B_w );
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DECLARE_WRITE_LINE_MEMBER( pia1_cb2_w);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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protected:
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required_device<pia6821_device> m_pia1;
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required_device<ram_device> m_ram;
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required_memory_bank m_bank1;
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required_device<h46505_device> m_crtc;
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};
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void can09_state::machine_reset()
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{
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LOG(("%s()\n", FUNCNAME));
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m_bank1->set_entry(0);
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}
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void can09_state::machine_start()
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{
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LOG(("%s()\n", FUNCNAME));
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m_bank1->configure_entries(0, 8, m_ram->pointer(), 0x8000);
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}
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uint32_t can09_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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int x, y;
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#if 0
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int vramad;
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UINT8 *chardata;
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UINT8 charcode;
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#endif
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LOGSCREEN(("%s()\n", FUNCNAME));
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// vramad = 0;
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for (int row = 0; row < 72 * 8; row += 8)
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{
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for (int col = 0; col < 64 * 8; col += 8)
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{
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#if 0
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/* look up the character data */
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charcode = m_vram[vramad];
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if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n %c at X=%d Y=%d: ", charcode, col, row));
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chardata = &m_char_ptr[(charcode * 8)];
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#endif
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/* plot the character */
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for (y = 0; y < 8; y++)
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{
|
||||
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n %02x: ", *chardata));
|
||||
for (x = 0; x < 8; x++)
|
||||
{
|
||||
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN((" %02x: ", *chardata));
|
||||
bitmap.pix16(row + y, col + x) = x & 1; //(*chardata & (1 << x)) ? 1 : 0;
|
||||
}
|
||||
// chardata++;
|
||||
}
|
||||
// vramad++;
|
||||
}
|
||||
// if (VERBOSE && charcode != 0x20 && charcode != 0) LOGSCREEN(("\n"));
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
READ8_MEMBER( can09_state::pia1_A_r )
|
||||
{
|
||||
LOG(("%s()\n", FUNCNAME));
|
||||
return 0x40;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER( can09_state::pia1_A_w )
|
||||
{
|
||||
LOG(("%s(%02x)\n", FUNCNAME, data));
|
||||
}
|
||||
|
||||
READ8_MEMBER( can09_state::pia1_B_r )
|
||||
{
|
||||
LOG(("%s()\n", FUNCNAME));
|
||||
return 0;
|
||||
}
|
||||
|
||||
WRITE8_MEMBER( can09_state::pia1_B_w )
|
||||
{
|
||||
// UINT8 *RAM = memregion("maincpu")->base();
|
||||
LOG(("%s(%02x)\n", FUNCNAME, data));
|
||||
// membank("bank1")->set_entry((data & 0x70) >> 4);
|
||||
m_bank1->set_entry((data & 0x70) >> 4);
|
||||
#if 0
|
||||
switch (data & 0x70){
|
||||
case 0x00: membank("bank1")->set_base(&RAM[0x10000]); break;
|
||||
case 0x10: membank("bank1")->set_base(&RAM[0x18000]); break;
|
||||
case 0x20: membank("bank1")->set_base(&RAM[0x20000]); break;
|
||||
case 0x30: membank("bank1")->set_base(&RAM[0x28000]); break;
|
||||
case 0x40: membank("bank1")->set_base(&RAM[0x30000]); break;
|
||||
case 0x50: membank("bank1")->set_base(&RAM[0x38000]); break;
|
||||
case 0x60: membank("bank1")->set_base(&RAM[0x40000]); logerror("strange memory bank"); break;
|
||||
case 0x70: membank("bank1")->set_base(&RAM[0x48000]); logerror("strange memory bank"); break;
|
||||
default: logerror("%s Programming error, please report!\n", FUNCNAME);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
WRITE_LINE_MEMBER(can09_state::pia1_cb2_w)
|
||||
{
|
||||
LOG(("%s(%02x)\n", FUNCNAME, state));
|
||||
}
|
||||
|
||||
static INPUT_PORTS_START( can09 )
|
||||
PORT_START("LINE0")
|
||||
PORT_START("LINE1")
|
||||
PORT_START("LINE2")
|
||||
PORT_START("LINE3")
|
||||
PORT_START("LINE4")
|
||||
INPUT_PORTS_END
|
||||
|
||||
// traced and guessed from pcb images and debugger
|
||||
// It is very likelly that this is a PIA based dynamic address map, needs more analysis
|
||||
static ADDRESS_MAP_START( can09_map, AS_PROGRAM, 8, can09_state )
|
||||
/*
|
||||
* Port A=0x18 B=0x20 erase 0-7fff
|
||||
* Port A=0x18 B=0x30 erase 0-7fff
|
||||
* Port A=0x18 B=0x00
|
||||
* Port A=0x10 B=
|
||||
*/
|
||||
// AM_RANGE(0x0000, 0x7fff) AM_RAM
|
||||
AM_RANGE(0x0000, 0x7fff) AM_RAM AM_RAMBANK("bank1")
|
||||
AM_RANGE(0xe020, 0xe020) AM_DEVWRITE("crtc", h46505_device, address_w)
|
||||
AM_RANGE(0xe021, 0xe021) AM_DEVWRITE("crtc", h46505_device, register_w)
|
||||
AM_RANGE(0xe034, 0xe037) AM_DEVREADWRITE(PIA1_TAG, pia6821_device, read, write)
|
||||
|
||||
#if 0
|
||||
AM_RANGE(0xb100, 0xb100) AM_DEVREADWRITE("acia", acia6850_device, status_r, control_w)
|
||||
AM_RANGE(0xb101, 0xb101) AM_DEVREADWRITE("acia", acia6850_device, data_r, data_w)
|
||||
AM_RANGE(0xb110, 0xb113) AM_DEVREADWRITE(PIA1_TAG, pia6821_device, read_alt, write_alt)
|
||||
AM_RANGE(0xb120, 0xb123) AM_DEVREADWRITE(PIA2_TAG, pia6821_device, read_alt, write_alt)
|
||||
AM_RANGE(0xb130, 0xb137) AM_DEVREADWRITE("ptm", ptm6840_device, read, write)
|
||||
AM_RANGE(0xb200, 0xc1ff) AM_ROM AM_REGION("roms", 0x3200)
|
||||
AM_RANGE(0xc200, 0xdfff) AM_RAM /* Needed for BASIC etc */
|
||||
#endif
|
||||
AM_RANGE(0xe000, 0xffff) AM_ROM AM_REGION("roms", 0)
|
||||
ADDRESS_MAP_END
|
||||
|
||||
/* Input ports
|
||||
/* E100 Input ports
|
||||
* Four e100 keys are not mapped yet,
|
||||
* - The redundant '*' on the keyboard together with the '\'' single quote, both on same e100 key
|
||||
* - The 'E' key on the keypad, presumably used for calculator applications to remove the last entered number
|
||||
@ -1023,6 +1345,129 @@ TIMER_DEVICE_CALLBACK_MEMBER(didact_state::scan_artwork)
|
||||
}
|
||||
}
|
||||
|
||||
/* Fake clock values until we TODO: figure out how the PTM generates the clocks */
|
||||
#define CAN09T_BAUDGEN_CLOCK XTAL_1_8432MHz
|
||||
#define CAN09T_ACIA_CLOCK (CAN09T_BAUDGEN_CLOCK / 12)
|
||||
|
||||
static MACHINE_CONFIG_START( can09t, can09t_state )
|
||||
MCFG_CPU_ADD("maincpu", M6809, XTAL_4_9152MHz) // IPL crystal
|
||||
MCFG_CPU_PROGRAM_MAP(can09t_map)
|
||||
|
||||
/* --PIA inits----------------------- */
|
||||
MCFG_DEVICE_ADD(PIA1_TAG, PIA6821, 0) // CPU board
|
||||
MCFG_PIA_READPA_HANDLER(READ8(can09t_state, pia1_A_r))
|
||||
MCFG_PIA_READPB_HANDLER(READ8(can09t_state, pia1_B_r))
|
||||
MCFG_PIA_WRITEPB_HANDLER(WRITE8(can09t_state, pia1_B_w))
|
||||
MCFG_PIA_CB2_HANDLER(WRITELINE(can09t_state, pia1_cb2_w))
|
||||
/* 0xE1FB 0xB112 (PIA1 Control A) = 0x00 - Channel A IRQ disabled */
|
||||
/* 0xE1FB 0xB113 (PIA1 Control B) = 0x00 - Channel B IRQ disabled */
|
||||
/* 0xE203 0xB110 (PIA1 DDR A) = 0x00 - Port A all inputs */
|
||||
/* 0xE203 0xB111 (PIA1 DDR B) = 0x7F - Port B mixed mode */
|
||||
/* 0xE20A 0xB112 (PIA1 Control A) = 0x05 - IRQ A enabled on falling transition on CA2 */
|
||||
/* 0xE20A 0xB113 (PIA1 Control B) = 0x34 - CB2 is low and lock DDRB */
|
||||
/* 0xE20E 0xB111 (PIA1 port B) = 0x10 - Data to port B */
|
||||
MCFG_DEVICE_ADD(PIA2_TAG, PIA6821, 0) // CPU board
|
||||
MCFG_PIA_CB2_HANDLER(WRITELINE(can09t_state, pia2_cb2_w))
|
||||
/* 0xE212 0xB122 (PIA2 Control A) = 0x00 - Channel A IRQ disabled */
|
||||
/* 0xE212 0xB123 (PIA2 Control B) = 0x00 - Channel B IRQ disabled */
|
||||
/* 0xE215 0xB120 (PIA2 DDR A) = 0x00 - Port A all inputs */
|
||||
/* 0xE215 0xB121 (PIA2 DDR B) = 0xFF - Port B all outputs */
|
||||
/* 0xE21A 0xB122 (PIA2 Control A) = 0x34 - CA2 is low and lock DDRB */
|
||||
/* 0xE21A 0xB123 (PIA2 Control B) = 0x34 - CB2 is low and lock DDRB */
|
||||
MCFG_DEVICE_ADD(PIA3_TAG, PIA6821, 0) // ROM board
|
||||
MCFG_DEVICE_ADD(PIA4_TAG, PIA6821, 0) // ROM board
|
||||
|
||||
MCFG_DEVICE_ADD("ptm", PTM6840, 0)
|
||||
|
||||
/* RS232 usage: mame can09t -window -debug -rs232 terminal */
|
||||
MCFG_DEVICE_ADD("acia", ACIA6850, 0)
|
||||
MCFG_ACIA6850_TXD_HANDLER(DEVWRITELINE ("rs232", rs232_port_device, write_txd))
|
||||
MCFG_ACIA6850_RTS_HANDLER(DEVWRITELINE ("rs232", rs232_port_device, write_rts))
|
||||
MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, "terminal")
|
||||
MCFG_RS232_RXD_HANDLER(DEVWRITELINE ("acia", acia6850_device, write_rxd))
|
||||
MCFG_RS232_CTS_HANDLER(DEVWRITELINE ("acia", acia6850_device, write_cts))
|
||||
|
||||
MCFG_DEVICE_ADD ("acia_clock", CLOCK, CAN09T_ACIA_CLOCK)
|
||||
MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE (can09t_state, write_acia_clock))
|
||||
MACHINE_CONFIG_END
|
||||
|
||||
#define CAN09_X1_CLOCK XTAL_22_1184MHz /* UKI 22118.40 Khz */
|
||||
#define CAN09_CPU_CLOCK (CAN09_X1_CLOCK / 16) /* ~1.38MHz Divider needs to be check but is the most likelly */
|
||||
static MACHINE_CONFIG_START( can09, can09_state )
|
||||
MCFG_CPU_ADD("maincpu", M6809E, CAN09_CPU_CLOCK)
|
||||
MCFG_CPU_PROGRAM_MAP(can09_map)
|
||||
|
||||
/* RAM banks */
|
||||
MCFG_RAM_ADD(RAM_TAG)
|
||||
MCFG_RAM_DEFAULT_SIZE("768K")
|
||||
|
||||
// CRTC init
|
||||
MCFG_MC6845_ADD("crtc", H46505, "screen", CAN09_CPU_CLOCK) // TODO: Check actual clock source, An 8MHz UKI crystal is also nearby
|
||||
#if 0
|
||||
MCFG_MC6845_SHOW_BORDER_AREA(false)
|
||||
MCFG_MC6845_CHAR_WIDTH(8)
|
||||
MCFG_MC6845_UPDATE_ROW_CB(can09_state, crtc_update_row)
|
||||
#endif
|
||||
/* Setup loop from data table in ROM: 0xFFCB 0xE020 (CRTC register number), 0xFFD0 0xE021 (CRTC register value)
|
||||
Reg Value Comment
|
||||
0x00 0x55 Horizontal Total number of characters,
|
||||
0x01 0x40 Horizontal Displayed number of characters
|
||||
0x02 0x43 Horizontal Sync Position, character number
|
||||
0x03 0x03 Horizontal Sync width, number of charcters
|
||||
0x04 0x50 Vertical Total number of characters
|
||||
0x05 0x09 Vertical Total Adjust number of characters
|
||||
0x06 0x48 Vertical Displayed number of characters
|
||||
0x07 0x4B Vertical Sync Position, character number
|
||||
0x08 0x00 Interlace Mode/Scew, Non-Interlaced
|
||||
0x09 0x03 Max Scan Line Address Register
|
||||
0x0A 0x00 Cursor Start
|
||||
0x0B 0x0A Cursor End
|
||||
0x0C 0x00 Start Address hi
|
||||
0x0D 0x00 Start Address lo
|
||||
0x0E 0x00 Cursor hi
|
||||
0x0F 0x00 Cursor lo
|
||||
Note - no init of Light Pen registers
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/* screen - totally faked value for now */
|
||||
MCFG_SCREEN_ADD("screen", RASTER)
|
||||
MCFG_SCREEN_REFRESH_RATE(50)
|
||||
MCFG_SCREEN_RAW_PARAMS(XTAL_4MHz/2, 512, 0, 512, 576, 0, 576)
|
||||
MCFG_SCREEN_UPDATE_DRIVER(can09_state, screen_update)
|
||||
MCFG_SCREEN_PALETTE("palette")
|
||||
MCFG_PALETTE_ADD_MONOCHROME("palette")
|
||||
|
||||
/* Floppy */
|
||||
MCFG_WD1770_ADD("wd1770", XTAL_8MHz ) // TODO: Verify 8MHz UKI crystal assumed to be used
|
||||
#if 0
|
||||
MCFG_FLOPPY_DRIVE_ADD("wd1770:0", candela_floppies, "35dd", floppy_image_device::default_floppy_formats)
|
||||
MCFG_SOFTWARE_LIST_ADD("flop525_list", "candela")
|
||||
#endif
|
||||
|
||||
/* --PIA inits----------------------- */
|
||||
MCFG_DEVICE_ADD(PIA1_TAG, PIA6821, 0) // CPU board
|
||||
MCFG_PIA_READPA_HANDLER(READ8(can09_state, pia1_A_r))
|
||||
MCFG_PIA_WRITEPA_HANDLER(WRITE8(can09_state, pia1_A_w))
|
||||
MCFG_PIA_READPB_HANDLER(READ8(can09_state, pia1_B_r))
|
||||
MCFG_PIA_WRITEPB_HANDLER(WRITE8(can09_state, pia1_B_w))
|
||||
MCFG_PIA_CB2_HANDLER(WRITELINE(can09_state, pia1_cb2_w))
|
||||
/* 0xFF7D 0xE035 (PIA1 Control A) = 0x00 - Channel A IRQ disabled */
|
||||
/* 0xFF81 0xE037 (PIA1 Control B) = 0x00 - Channel A IRQ disabled */
|
||||
/* 0xFF85 0xE034 (PIA1 DDR A) = 0x1F - Port A mixed mode */
|
||||
/* 0xFF89 0xE036 (PIA1 DDR B) = 0x79 - Port B mixed mode */
|
||||
/* 0xFF8D 0xE035 (PIA1 Control A) = 0x04 - Channel A lock DDR */
|
||||
/* 0xFF8F 0xE037 (PIA1 Control B) = 0x04 - Channel B lock DDR */
|
||||
/* 0xFF93 0xE034 (PIA1 Port B) = 0x18 - Write Data on Port B */
|
||||
|
||||
#if 1
|
||||
MCFG_DEVICE_ADD(PIA2_TAG, PIA6821, 0) // CPU board
|
||||
MCFG_DEVICE_ADD("acia1", ACIA6850, 0) // CPU board
|
||||
MCFG_DEVICE_ADD("acia2", ACIA6850, 0) // CPU board
|
||||
#endif
|
||||
MACHINE_CONFIG_END
|
||||
|
||||
static MACHINE_CONFIG_START( e100, e100_state )
|
||||
MCFG_CPU_ADD("maincpu", M6802, XTAL_4MHz)
|
||||
MCFG_CPU_PROGRAM_MAP(e100_map)
|
||||
@ -1178,6 +1623,20 @@ static MACHINE_CONFIG_START( mp68a, mp68a_state )
|
||||
MCFG_TIMER_DRIVER_ADD_PERIODIC("artwork_timer", mp68a_state, scan_artwork, attotime::from_hz(10))
|
||||
MACHINE_CONFIG_END
|
||||
|
||||
ROM_START( can09t )
|
||||
ROM_REGION(0x10000, "roms", 0)
|
||||
/* CAN09 v7 and CDBASIC 3.8 */
|
||||
ROM_LOAD( "ic2-mon58b-c8d7.bin", 0x0000, 0x8000, CRC(7eabfec6) SHA1(e08e2349035389b441227df903aa54f4c1e4a337) )
|
||||
/* Programmable logic for the CAN09 1.4 PCB */
|
||||
ROM_REGION(0x1000, "plas", 0)
|
||||
ROM_LOAD( "ic10-21.1.bin", 0x0000, 0x20, CRC(b75ac72d) SHA1(689363200035b11a823d17a8d717f313eeefc3bf) )
|
||||
ROM_END
|
||||
|
||||
ROM_START( can09 )
|
||||
ROM_REGION(0x10000, "roms", 0)
|
||||
ROM_LOAD( "ic14-vdu42.bin", 0x0000, 0x2000, CRC(67fc3c8c) SHA1(1474d6259646798377ef4ce7e43d3c8d73858344) )
|
||||
ROM_END
|
||||
|
||||
/* ROM sets from Didact was not versioned in general, so the numbering are just assumptions */
|
||||
ROM_START( e100 )
|
||||
ROM_REGION(0x4000, "roms", 0)
|
||||
@ -1214,7 +1673,9 @@ ROM_START( mp68a ) // ROM image from http://elektronikforumet.com/forum/viewtopi
|
||||
ROM_LOAD( "didactB.bin", 0x0a00, 0x0200, CRC(592898dc) SHA1(2962f4817712cae97f3ab37b088fc73e66535ff8) )
|
||||
ROM_END
|
||||
|
||||
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
|
||||
COMP( 1979, mp68a, 0, 0, mp68a, mp68a, driver_device, 0, "Didact AB", "mp68a", MACHINE_NO_SOUND_HW )
|
||||
COMP( 1982, e100, 0, 0, e100, e100, driver_device, 0, "Didact AB", "Esselte 100", MACHINE_NO_SOUND_HW )
|
||||
COMP( 1983, md6802, 0, 0, md6802, md6802, driver_device, 0, "Didact AB", "Mikrodator 6802", MACHINE_NO_SOUND_HW )
|
||||
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
|
||||
COMP( 1979, mp68a, 0, 0, mp68a, mp68a, driver_device, 0, "Didact AB", "mp68a", MACHINE_NO_SOUND_HW )
|
||||
COMP( 1982, e100, 0, 0, e100, e100, driver_device, 0, "Didact AB", "Esselte 100", MACHINE_NO_SOUND_HW )
|
||||
COMP( 1983, md6802, 0, 0, md6802, md6802, driver_device, 0, "Didact AB", "Mikrodator 6802", MACHINE_NO_SOUND_HW )
|
||||
COMP( 1984, can09, 0, 0, can09, can09, driver_device, 0, "Candela Data AB", "Candela CAN09 main unit", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW )
|
||||
COMP( 1984, can09t, 0, 0, can09t, can09t, driver_device, 0, "Candela Data AB", "Candela CAN09 terminal", MACHINE_NO_SOUND_HW )
|
||||
|
||||
@ -10986,6 +10986,8 @@ xfilesk // (c) 1999 dgPIX Entertainment Inc (censored fo
|
||||
md6802 //
|
||||
mp68a //
|
||||
e100 //
|
||||
can09t //
|
||||
can09 //
|
||||
|
||||
@source:dietgo.cpp
|
||||
dietgo // MAY (c) 1993
|
||||
|
||||
Loading…
Reference in New Issue
Block a user