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Split cat.c into separate drivers for canon cat and iai swyft. (Part 3) [Lord Nightmare]
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Lord-Nightmare
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@ -3,7 +3,6 @@
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/***************************************************************************
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/***************************************************************************
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Canon Cat, Model V777
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Canon Cat, Model V777
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IAI Swyft Model P0001
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Copyright (C) 2009-2013 Miodrag Milanovic and Jonathan Gevaryahu AKA Lord Nightmare
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Copyright (C) 2009-2013 Miodrag Milanovic and Jonathan Gevaryahu AKA Lord Nightmare
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With information and help from John "Sandy" Bumgarner, Dwight Elvey,
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With information and help from John "Sandy" Bumgarner, Dwight Elvey,
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Charles Springer, Terry Holmes, Jonathan Sand, Aza Raskin and others.
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Charles Springer, Terry Holmes, Jonathan Sand, Aza Raskin and others.
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@ -112,29 +111,6 @@ phosphor_life 0.93,0.95,0.87
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which is fairly close but may actually be too SHORT compared to the real thing.
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which is fairly close but may actually be too SHORT compared to the real thing.
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Swyft versions:
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There are at least 4 variants of machines called 'swyft':
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* The earliest desktop units which use plexi or rubber-tooled case and an
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angled monitor; about a dozen were made and at least two of clear plexi.
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These are sometimes called "wrinkled" swyfts. 5.25" drive, they may be able
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to read Apple2 Swyftware/Swyftdisk and Swyftcard-created disks.
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It is possible no prototypes of this type got beyond the 'runs forth console only' stage.
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http://archive.computerhistory.org/resources/access/physical-object/2011/09/102746929.01.01.lg.JPG
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http://www.digibarn.com/collections/systems/swyft/Swyft-No2-05-1271.jpg
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http://www.digibarn.com/friends/jef-raskin/slides/iai/A%20-687%20SWYFTPRO.JPG
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* The early "flat cat" or "roadkill" portable LCD screen units with a white
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case and just a keyboard. Model SP0001
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http://www.digibarn.com/collections/systems/swyft/Image82.jpg
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* The later "ur-cat" desktop units which use a machine tooled case and look
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more or less like the canon cat. Around 100-200 were made. 3.5" drive.
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These have a fully functional EDDE editor as the cat does, and can even compile
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forth programs.
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(the 'swyft' driver is based on one of these)
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* The very late portable LCD units with a dark grey case and a row of hotkey
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buttons below the screen. Not dumped yet. At least one functional prototype exists.
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At least one plastic mockup exists with no innards.
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http://www.digibarn.com/collections/systems/swyft/swyft.jpg
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Canon Cat versions:
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Canon Cat versions:
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There is really only one version of the cat which saw wide release, the US version.
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There is really only one version of the cat which saw wide release, the US version.
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* It is possible a very small number of UK/European units were released as a test.
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* It is possible a very small number of UK/European units were released as a test.
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@ -161,93 +137,6 @@ X1: 19.968Mhz, used by GA2 (plus a PLL to multiply by 2?), and divide by 4 for
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X2: 3.579545Mhz, used by the DTMF generator chip AMI S2579 at IC40
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X2: 3.579545Mhz, used by the DTMF generator chip AMI S2579 at IC40
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X3: 2.4576Mhz, used by the modem chip AMI S35213 at IC37
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X3: 2.4576Mhz, used by the modem chip AMI S35213 at IC37
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IAI Swyft:
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Board name: 950-0001C
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"INFORMATION APPLIANCE INC. COPYRIGHT 1985"
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_________________|||||||||___________________________________________________________________________________
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| J8 [=======J3=======] ____ Trans- |
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== / \ (E2) former |
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==Jx 74LS107 J5 |PB1 | uA339 MC3403 -----|
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| 7407 \____/ J7 =
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| Y1 "TIMING B" 74LS132 74LS175 -----|
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| ____________ 4N37 Relay -----|
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| TMS4256 74LS161 "DECODE E" "DISK 3.5C" | | J6 =
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| | MC6850P | -----|
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| TMS4256 74LS166 74HCT259 74LS299 '------------' MC3403 MC3403 _____|
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| ___________________ ___________________ || | =
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| TMS4256 74LS373 | | | | J2 | J1 =
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| | MC68008P8 | | R6522P | || I P R | =
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| TMS4256 74F153 '-------------------' '-------------------' MN4053 || MN4053 N R E | B =
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| (E1) D O S | R =
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| TMS4256 74F153 74HCT08 __________ ___________________ MC14412 DS1489 U E T I | E =
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| | | | | || C S E S | A =
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| TMS4256 74F153 74HC4040E | AM27256 | | R6522P | || T D C T | K =
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| '----------' '-------------------' || INFORMATION O T O | O =
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| TMS4256 74F153 "VIDEO 2B" .----------. J4 APPLIANCE INC. R I R | U =
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| | AM27256 | 74HC02 74HC374 || Copyright 1985 S O S | T =
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| TMS4256 74F153 74LS393 B1|__________| || UM95089 Y2 N | =
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|_____________________________[________J9___]__________________________________________________D13______|_____=
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*Devices of interest:
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J1: breakout of joystick, serial/rs232, hex-keypad, parallel port, and forth switch (and maybe cassette?) pins
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DIL 60 pin 2-row right-angle rectangular connector with metal shield contact;
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not all 60 pins are populated in the connector, only pins 1-6, 8, 13-15, 17-18, 23-30, 35-60 are present
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(traced partly by dwight)
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J2: unpopulated 8-pin sip header, serial/rs232-related?
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(vcc ? ? ? ? ? ? gnd) (random guess: txd, rxd, rts, cts, dsr, dtr, and one pin could be cd/ri though the modem circuit may do that separately?)
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J3: Floppy Connector
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(standard DIL 34 pin 2-row rectangular connector for mini-shugart/pc floppy cable; pin 2 IS connected somewhere and ?probably? is used for /DISKCHANGE like on an Amiga, with pin 34 being /TRUEREADY?)
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(as opposed to normal ibm pc 3.5" drives where pin 2 is unconnected or is /DENSITY *input to drive*, and pin 34 is /DISKCHANGE)
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J4: 18-pin sip header for keyboard ribbon cable; bottom edge of board is pin 1
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Pins:
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1: GND through 220k resistor r78
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2: ? phone hook related? anode of diode d7; one of the pins of relay k2; topmost (boardwise) pin of transistor Q10
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3: 74HCT34 pin
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J5: locking-tab-type "CONN HEADER VERT 4POS .100 TIN" connector for supplying power
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through a small cable with a berg connector at the other end, to the floppy drive
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(5v gnd gnd 12v)
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J6: Phone connector, rj11 jack
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J7: Line connector, rj11 jack
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J8: 9-pin Video out/power in connector "CONN RECEPT 6POS .156 R/A PCB" plus "CONN RECEPT 3POS .156 R/A PCB" acting as one 9-pin connector
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(NC ? ? ? NC NC ? 12v 5v) (video, vsync, hsync and case/video-gnd are likely here)
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(the video pinout of the cat is: (Video Vsync Hsync SyncGnd PwrGnd PwrGnd +5v(VCC) +12v(VDD) -12v(VEE)) which is not the same as the swyft.
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J9: unpopulated DIL 40-pin straight connector for a ROM debug/expansion/RAM-shadow daughterboard
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the pins after pin 12 connect to that of the ROM-LO 27256 pinout counting pins 1,28,2,27,3,26,etc
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the ROM-HI rom has a different /HICE pin which is not connected to this connector
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/LOCE is a15
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/HICE is !a15
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/ROM_OE comes from pin 14 of DECODE_E pal, and is shorted to /ROM_OE' by the cuttable jumper B1 which is not cut
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/ROM_OE' goes to the two EPROMS
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DECODE_18 is DECODE_E pal pin 18
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pin 1 (GND) is in the lower left and the pins count low-high then to the right
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(gnd N/C E_CLK R/W /ROM_OE a17 vcc a14 a13 a8 a9 a11 /ROM_OE' a10 a15 d7 d6 d5 d4 d3 )
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(GND /IPL1 DECODE_18 /RESET gnd a16 vcc a12 a7 a6 a5 a4 a3 a2 a1 a0 d0 d1 d2 gnd)
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Jx: 4 pin on top side, 6 pin on bottom side edge ?debug? connector (doesn't have a Jx number)
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(trace me!)
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B1: a cuttable trace on the pcb. Not cut, affects one of the pins on the unpopulated J9 connector only.
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E1: jumper, unknown purpose, not set
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E2: jumper, unknown purpose, not set
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D13: LED
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R6522P (upper): parallel port via
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R6522P (lower): keyboard via
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UM95089: DTMF Tone generator chip (if you read the datasheet this is technically ROM based!)
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Y1: 15.8976Mhz, main clock?
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Y2: 3.579545Mhz, used by the DTMF generator chip UM95089 (connects to pins 7 and 8 of it)
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TMS4256-15NL - 262144 x 1 DRAM
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PB1 - piezo speaker
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*Pals:
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"TIMING B" - AMPAL16R4APC (marked on silkscreen "TIMING PAL")
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"DECODE E" - AMPAL16L8PC (marked on silkscreen "DECODE PAL")
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"VIDEO 2B" - AMPAL16R4PC (marked on silkscreen "VIDEO PAL")
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"DISK 3.5C" - AMPAL16R4PC (marked on silkscreen "DISK PAL")
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*Deviations from silkscreen:
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4N37 (marked on silkscreen "4N35")
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74F153 (marked on silkscreen "74ALS153")
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74HCT259 is socketed, possibly intended that the rom expansion daughterboard will have a ribbon cable fit in its socket?
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ToDo:
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ToDo:
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* Canon Cat
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* Canon Cat
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@ -299,114 +188,6 @@ ToDo:
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- Hook the floppy control register readback up properly, things seem to get
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- Hook the floppy control register readback up properly, things seem to get
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confused.
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confused.
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* Swyft
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- Figure out the keyboard (interrupts are involved? or maybe an NMI on a
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timer/vblank? It is possible this uses a similar 'keyboard read int'
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to what the cat does)
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- get the keyboard scanning actually working; the VIAs are going nuts right now.
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- Beeper (on one of the vias?)
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- vblank/hblank stuff
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- Get the 6850 ACIA working for communications
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- Floppy (probably similar to the Cat)
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- Centronics port (attached to one of the VIAs)
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- Joystick port (also likely on a via)
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- Keypad? (also likely on a via done as a grid scan?)
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- Forth button (on the port on the back; keep in mind shift-usefront-space ALWAYS enables forth on a swyft)
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- Multple undumped firmware revisions exist (330 and 331 are dumped)
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// 74ls107 @ u18 pin 1 is 68008 /BERR pin
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// mc6850 @ u33 pin 2 (RX_DATA) is
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// mc6850 @ u33 pin 3 (RX_CLK) is 6522 @ u35 pin 17 (PB7)
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// mc6850 @ u33 pin 4 (TX_CLK) is 6522 @ u35 pin 17 (PB7)
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// mc6850 @ u33 pin 5 (/RTS) is
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// mc6850 @ u33 pin 6 (TX_DATA) is
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// mc6850 @ u33 pin 7 (/IRQ) is 68008 /IPL1 pin 41
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// mc6850 @ u33 pin 8 (CS0) is 68008 A12 pin 10
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// mc6850 @ u33 pin 9 (CS2) is DECODE E pin 18
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// mc6850 @ u33 pin 10 (CS1) is 68008 /BERR pin 40
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// mc6850 @ u33 pin 11 (RS) is 68008 A0 pin 46
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// mc6850 @ u33 pin 13 (R/W) is 68008 R/W pin 30
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// mc6850 @ u33 pin 14 (E) is 68008 E pin 38
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// mc6850 @ u33 pin 15-22 (D7-D0) are 68008 D7 to D0 pins 20-27
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// mc6850 @ u33 pin 23 (/DCD) is 74hc02 @ u35 pin 1
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// mc6850 @ u33 pin 24 (/CTS) is N/C?
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// 6522 @ u34:
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// pin 2 (PA0) :
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// pin 3 (PA1) :
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// pin 4 (PA2) :
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// pin 5 (PA3) :
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// pin 6 (PA4) :
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// pin 7 (PA5) :
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// pin 8 (PA6) :
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// pin 9 (PA7) :
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// pin 10 (PB0) :
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// pin 11 (PB1) :
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// pin 12 (PB2) :
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// pin 13 (PB3) :
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// pin 14 (PB4) :
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// pin 15 (PB5) :
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// pin 16 (PB6) :
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// pin 17 (PB7) :
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// pin 18 (CB1) : ?from/to? Floppy connector j3 pin 8
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// pin 19 (CB2) : ?from/to? 6522 @ u35 pin 16 (PB6)
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// pin 21 (/IRQ) : out to 68008 /IPL1 pin 41
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// pin 22 (R/W) : in from 68008 R/W pin 30
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// pin 23 (/CS2) : in from DECODE E pin 18
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// pin 24 (CS1) : in from 68008 A13 pin 11
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// pin 25 (Phi2) : in from 68008 E pin 38
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// pins 26-33 : in/out from/to 68008 D7 to D0 pins 20-27
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// pin 34 (/RES) : in from 68008 /RESET pin 37 AND 68008 /HALT pin 36
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// pins 35-38 (RS3-RS0) are 68008 A9-A6 pins 7-4
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// pin 39 (CA2) is through inductor L11 and resistor r128 to peripheral connector pin 35 <end minus 26>
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// pin 40 (CA1) is through inductor L30 and resistor r138 to peripheral connector pin 53 <end minus 8>
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// 6522 @ u35
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// pin 2 (PA0) :
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// pin 3 (PA1) :
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// pin 4 (PA2) :
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// pin 5 (PA3) :
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// pin 6 (PA4) :
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// pin 7 (PA5) :
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// pin 8 (PA6) :
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// pin 9 (PA7) :
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// pin 10 (PB0) :
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// pin 11 (PB1) : in from 74hc02 @ u36 pin 4
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// pin 12 (PB2) :
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// pin 13 (PB3) :
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// pin 14 (PB4) :
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// pin 15 (PB5) :
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// pin 16 (PB6) : 6522 @ u34 pin 19 (CB2)
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// pin 17 (PB7) : mc6850 @ u33 pins 3 and 4 (RX_CLK, TX_CLK)
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// pin 18 (CB1) : ds1489an @ u45 pin 11
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// pin 19 (CB2) : mn4053b @ u40 pin 11 and mc14412 @ u41 pin 10
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// pin 21 (/IRQ) : out to 68008 /IPL1 pin 41
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// pin 22 (R/W) : in from 68008 R/W pin 30
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// pin 23 (/CS2) : in from DECODE E pin 18
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// pin 24 (CS1) : in from 68008 A14 pin 12
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// pin 25 (Phi2) : in from 68008 E pin 38
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// pins 26-33 : in/out from/to 68008 D7 to D0 pins 20-27
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// pin 34 (/RES) : in from 68008 /RESET pin 37 AND 68008 /HALT pin 36
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// pins 35-38 (RS3-RS0) : in from 68008 A9-A6 pins 7-4
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// pin 39 (CA2) : out to 74HCT34 pin 11 (CLK) (keyboard column latch)
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// pin 40 (CA1) : out? to? ds1489an @ u45 pin 8
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// 74hc02 @ u36:
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// pin 1 (Y1) : out to mc6850 @ u33 pin 23 /DCD
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// pin 2 (A1) : in from (2 places: resistor R58 to ua339 @ u38 pin 4 (In1-)) <where does this actually come from? modem offhook?>
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// pin 3 (B1) : in from mn4053b @ u40 pin 10 <probably from rs232>
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// pin 4 (Y2) : out to 6522 @u35 pin 11
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// pin 5 (A2) : in from 4N37 @ u48 pin 5 (output side emitter pin) (tied via R189 to gnd) <ring indicator?>
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// pin 6 (B2) : in from 4N37 @ u48 pin 5 (output side emitter pin) (tied via R189 to gnd) <ring indicator?>
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// pin 8 (B3) :
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// pin 9 (A3) :
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// pin 10 (Y3) :
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// pin 11 (B4) : in from 68008 A15
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// pin 12 (A4) : in from 68008 A15
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// pin 13 (Y4) : out to EPROM @ U31 /CE
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****************************************************************************/
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****************************************************************************/
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// Defines
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// Defines
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@ -445,8 +226,6 @@ ToDo:
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#include "cpu/m68000/m68000.h"
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#include "cpu/m68000/m68000.h"
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#include "machine/clock.h"
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#include "machine/clock.h"
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#include "machine/mc68681.h"
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#include "machine/mc68681.h"
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#include "machine/6850acia.h"
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#include "machine/6522via.h"
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#include "machine/nvram.h"
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#include "machine/nvram.h"
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#include "sound/speaker.h"
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#include "sound/speaker.h"
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#include "bus/centronics/ctronics.h"
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#include "bus/centronics/ctronics.h"
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@ -467,13 +246,9 @@ public:
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m_duart(*this, "duartn68681"),
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m_duart(*this, "duartn68681"),
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m_ctx(*this, "ctx"),
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m_ctx(*this, "ctx"),
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m_ctx_data_out(*this, "ctx_data_out"),
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m_ctx_data_out(*this, "ctx_data_out"),
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m_acia6850(*this, "acia6850"),
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m_via0(*this, "via6522_0"),
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m_via1(*this, "via6522_1"),
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m_speaker(*this, "speaker"),
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m_speaker(*this, "speaker"),
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m_svram(*this, "svram"), // nvram
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m_svram(*this, "svram"), // nvram
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m_p_cat_videoram(*this, "p_cat_vram"),
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m_p_cat_videoram(*this, "p_cat_vram"),
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m_p_swyft_videoram(*this, "p_swyft_vram"),
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m_y0(*this, "Y0"),
|
m_y0(*this, "Y0"),
|
||||||
m_y1(*this, "Y1"),
|
m_y1(*this, "Y1"),
|
||||||
m_y2(*this, "Y2"),
|
m_y2(*this, "Y2"),
|
||||||
@ -487,25 +262,21 @@ public:
|
|||||||
|
|
||||||
required_device<cpu_device> m_maincpu;
|
required_device<cpu_device> m_maincpu;
|
||||||
//optional_device<nvram_device> m_nvram;
|
//optional_device<nvram_device> m_nvram;
|
||||||
optional_device<mc68681_device> m_duart; // only cat uses this
|
required_device<mc68681_device> m_duart;
|
||||||
optional_device<centronics_device> m_ctx;
|
required_device<centronics_device> m_ctx;
|
||||||
optional_device<output_latch_device> m_ctx_data_out;
|
required_device<output_latch_device> m_ctx_data_out;
|
||||||
optional_device<acia6850_device> m_acia6850; // only swyft uses this
|
required_device<speaker_sound_device> m_speaker;
|
||||||
optional_device<via6522_device> m_via0; // only swyft uses this
|
required_shared_ptr<UINT16> m_svram;
|
||||||
optional_device<via6522_device> m_via1; // only swyft uses this
|
required_shared_ptr<UINT16> m_p_cat_videoram;
|
||||||
optional_device<speaker_sound_device> m_speaker;
|
required_ioport m_y0;
|
||||||
optional_shared_ptr<UINT16> m_svram;
|
required_ioport m_y1;
|
||||||
optional_shared_ptr<UINT16> m_p_cat_videoram;
|
required_ioport m_y2;
|
||||||
optional_shared_ptr<UINT8> m_p_swyft_videoram;
|
required_ioport m_y3;
|
||||||
optional_ioport m_y0;
|
required_ioport m_y4;
|
||||||
optional_ioport m_y1;
|
required_ioport m_y5;
|
||||||
optional_ioport m_y2;
|
required_ioport m_y6;
|
||||||
optional_ioport m_y3;
|
required_ioport m_y7;
|
||||||
optional_ioport m_y4;
|
required_ioport m_dipsw;
|
||||||
optional_ioport m_y5;
|
|
||||||
optional_ioport m_y6;
|
|
||||||
optional_ioport m_y7;
|
|
||||||
optional_ioport m_dipsw;
|
|
||||||
emu_timer *m_keyboard_timer;
|
emu_timer *m_keyboard_timer;
|
||||||
emu_timer *m_6ms_timer;
|
emu_timer *m_6ms_timer;
|
||||||
|
|
||||||
@ -513,12 +284,8 @@ public:
|
|||||||
DECLARE_MACHINE_RESET(cat);
|
DECLARE_MACHINE_RESET(cat);
|
||||||
DECLARE_VIDEO_START(cat);
|
DECLARE_VIDEO_START(cat);
|
||||||
DECLARE_DRIVER_INIT(cat);
|
DECLARE_DRIVER_INIT(cat);
|
||||||
//DECLARE_MACHINE_START(swyft);
|
|
||||||
//DECLARE_MACHINE_RESET(swyft);
|
|
||||||
//DECLARE_VIDEO_START(swyft);
|
|
||||||
|
|
||||||
UINT32 screen_update_cat(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
UINT32 screen_update_cat(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||||
//UINT32 screen_update_swyft(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
|
||||||
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(cat_duart_irq_handler);
|
DECLARE_WRITE_LINE_MEMBER(cat_duart_irq_handler);
|
||||||
DECLARE_WRITE_LINE_MEMBER(cat_duart_txa);
|
DECLARE_WRITE_LINE_MEMBER(cat_duart_txa);
|
||||||
@ -547,31 +314,6 @@ public:
|
|||||||
DECLARE_READ16_MEMBER(cat_0080_r);
|
DECLARE_READ16_MEMBER(cat_0080_r);
|
||||||
DECLARE_READ16_MEMBER(cat_0000_r);
|
DECLARE_READ16_MEMBER(cat_0000_r);
|
||||||
|
|
||||||
//DECLARE_READ8_MEMBER(swyft_d0000);
|
|
||||||
|
|
||||||
/*DECLARE_READ8_MEMBER(swyft_via0_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(swyft_via0_w);
|
|
||||||
DECLARE_READ8_MEMBER(via0_pa_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(via0_pa_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via0_ca2_w);
|
|
||||||
DECLARE_READ8_MEMBER(via0_pb_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(via0_pb_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via0_cb1_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via0_cb2_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via0_int_w);
|
|
||||||
|
|
||||||
DECLARE_READ8_MEMBER(swyft_via1_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(swyft_via1_w);
|
|
||||||
DECLARE_READ8_MEMBER(via1_pa_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(via1_pa_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via1_ca2_w);
|
|
||||||
DECLARE_READ8_MEMBER(via1_pb_r);
|
|
||||||
DECLARE_WRITE8_MEMBER(via1_pb_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via1_cb1_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via1_cb2_w);
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(via1_int_w);
|
|
||||||
|
|
||||||
DECLARE_WRITE_LINE_MEMBER(write_acia_clock);*/
|
|
||||||
|
|
||||||
/* gate array 2 has a 16-bit counter inside which counts at 10mhz and
|
/* gate array 2 has a 16-bit counter inside which counts at 10mhz and
|
||||||
rolls over at FFFF->0000; on roll-over (or likely at FFFF terminal count)
|
rolls over at FFFF->0000; on roll-over (or likely at FFFF terminal count)
|
||||||
@ -1136,10 +878,6 @@ static INPUT_PORTS_START( cat )
|
|||||||
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\xb1') PORT_CHAR('\xb0') // PORT_CHAR('\\') PORT_CHAR('~')
|
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('\xb1') PORT_CHAR('\xb0') // PORT_CHAR('\\') PORT_CHAR('~')
|
||||||
INPUT_PORTS_END
|
INPUT_PORTS_END
|
||||||
|
|
||||||
//static INPUT_PORTS_START( swyft )
|
|
||||||
// insert dwight and sandy's swyft keyboard map here once we figure out the byte line order
|
|
||||||
//INPUT_PORTS_END
|
|
||||||
|
|
||||||
|
|
||||||
void cat_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
|
void cat_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
|
||||||
{
|
{
|
||||||
@ -1334,429 +1072,6 @@ static MACHINE_CONFIG_START( cat, cat_state )
|
|||||||
MCFG_NVRAM_ADD_0FILL("nvram")
|
MCFG_NVRAM_ADD_0FILL("nvram")
|
||||||
MACHINE_CONFIG_END
|
MACHINE_CONFIG_END
|
||||||
|
|
||||||
|
|
||||||
/* Swyft Memory map, based on watching the infoapp roms do their thing:
|
|
||||||
68k address map:
|
|
||||||
(a23,a22,a21,a20 lines don't exist on the 68008 so are considered unconnected)
|
|
||||||
a23 a22 a21 a20 a19 a18 a17 a16 a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 a0
|
|
||||||
x x x x 0 0 ? ? 0 * * * * * * * * * * * * * * * R ROM-LO (/LOCE is 0, /HICE is 1)
|
|
||||||
x x x x 0 0 ? ? 1 * * * * * * * * * * * * * * * R ROM-HI (/LOCE is 1, /HICE is 0)
|
|
||||||
x x x x 0 1 * * * * * * * * * * * * * * * * * a RW RAM
|
|
||||||
x x x x 1 1 ?0? ?1? ? ? ? ? ? ? ? ? ? ? ? ? * * * * R ? status of something? floppy?
|
|
||||||
x x x x 1 1 ?1? ?0? ? 0 0 1 x x x x x x x x x x x * RW 6850 acia @U33, gets 0x55 steadystate and 0x57 written to it to reset it
|
|
||||||
x x x x 1 1 ?1? ?0? ? 0 1 0 x x * * * * x x x x x x RW Parallel VIA 0 @ U34
|
|
||||||
x x x x 1 1 ?1? ?0? ? 1 0 0 x x * * * * x x x x x x RW Keyboard VIA 1 @ U35
|
|
||||||
^ ^ ^ ^ ^
|
|
||||||
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* Swyft rom and ram notes:
|
|
||||||
rom:
|
|
||||||
**Vectors:
|
|
||||||
0x0000-0x0003: SP boot vector
|
|
||||||
0x0004-0x0007: PC boot vector
|
|
||||||
**unknown:
|
|
||||||
0x0009-0x00BF: ? table
|
|
||||||
0x00C0-0x01DF: ? table
|
|
||||||
0x01E0-0x02DF: ? table (may be part of next table)
|
|
||||||
0x02E0-0x03DF: ? table
|
|
||||||
0x03E0-0x0B3F: int16-packed jump table (expanded to int32s at ram at 0x46000-0x46EC0 on boot)
|
|
||||||
0x0B40-0x0E83: ? function index tables?
|
|
||||||
0x0E84-0x1544: binary code (purpose?)
|
|
||||||
0x1545-0x24CF: ?
|
|
||||||
**Fonts:
|
|
||||||
0x24D0-0x254F: ? (likely font 1 width lookup table)
|
|
||||||
0x2550-0x2BCF: Font 1 data
|
|
||||||
0x2BD0-0x2C4F: ? (likely font 2 width lookup table)
|
|
||||||
0x2C50-0x32CF: Font 2 data
|
|
||||||
**unknown?:
|
|
||||||
0x32D0-0x360F: String data (and control codes?)
|
|
||||||
0x3610-0x364F: ? fill (0x03 0xe8)
|
|
||||||
0x3650-0x369F: ? fill (0x03 0x20)
|
|
||||||
0x36A0-0x384d: ? forth code?
|
|
||||||
0x384e-0x385d: Lookup table for phone keypad
|
|
||||||
0x385e-...: ?
|
|
||||||
...-0xC951: ?
|
|
||||||
0xC952: boot vector
|
|
||||||
0xC952-0xCAAE: binary code (purpose?)
|
|
||||||
0xCD26-0xCD3B: ?init forth bytecode?
|
|
||||||
0xCD3C-0xCEBA: 0xFF fill (unused?)
|
|
||||||
0xCEEB-0xFFFE: Forth dictionaries for compiling, with <word> then <3 bytes> afterward? (or before it? most likely afterward)
|
|
||||||
|
|
||||||
ram: (system dram ranges from 0x40000-0x7FFFF)
|
|
||||||
0x40000-0x425CF - the screen display ram
|
|
||||||
(?0x425D0-0x44BA0 - ?unknown (maybe screen ram page 2?))
|
|
||||||
0x44DC6 - SP vector
|
|
||||||
0x46000-0x46EC0 - jump tables to instructions for ? (each forth word?)
|
|
||||||
|
|
||||||
|
|
||||||
on boot:
|
|
||||||
copy/expand packed rom short words 0x3E0-0xB3F to long words at 0x46000-0x46EC0
|
|
||||||
copy 0x24f longwords of zero beyond that up to 0x47800
|
|
||||||
CD26->A5 <?pointer to init stream function?>
|
|
||||||
44DC6->A7 <reset SP... why it does this twice, once by the vector and once here, i'm gonna guess has to do with running the code in a debugger or on a development daughterboard like the cat had, where the 68008 wouldn't get explicitly reset>
|
|
||||||
44F2A->A6 <?pointer to work ram space?>
|
|
||||||
EA2->A4 <?function>
|
|
||||||
E94->A3 <?function>
|
|
||||||
EAE->A2 <?function>
|
|
||||||
41800->D7 <?forth? opcode index base; the '1800' portion gets the opcode type added to it then is multiplied by 4 to produce the jump table offset within the 0x46000-0x46EC0 range>
|
|
||||||
46e3c->D4 <?pointer to more work ram space?>
|
|
||||||
CD22->D5 <?pointer to another function?>
|
|
||||||
write 0xFFFF to d0004.l
|
|
||||||
jump to A4(EA2)
|
|
||||||
|
|
||||||
read first stream byte (which is 0x03) from address pointed to by A5 (which is CD26), inc A5, OR the opcode (0x03) to D7
|
|
||||||
(Note: if the forth opcodes are in order in the dictionary, then 0x03 is "!char" which is used to read a char from an arbitrary address)
|
|
||||||
copy D7 to A0
|
|
||||||
Add A0 low word to itself
|
|
||||||
Add A0 low word to itself again
|
|
||||||
move the long word from address pointed to by A0 (i.e. the specific opcode's area at the 46xxx part of ram) to A1
|
|
||||||
Jump to A1(11A4)
|
|
||||||
|
|
||||||
11A4: move 41b00 to D0 (select an opcode "page" 1bxx)
|
|
||||||
jump to 118E
|
|
||||||
|
|
||||||
118E: read next stream byte (in this case, 0x8E) from address pointed to by A5 (which is CD27), inc A5, OR the opcode (0x8e) to D7
|
|
||||||
add to 41b00 in d0, for 41b8E
|
|
||||||
Add A0 low word to itself
|
|
||||||
Add A0 low word to itself again
|
|
||||||
move the long word from address pointed to by A0 (i.e. the specific opcode's area at the 46xxx part of ram) to A1
|
|
||||||
Jump to A1(CD06)
|
|
||||||
|
|
||||||
CD06: jump to A3 (E94)
|
|
||||||
|
|
||||||
E94: subtract D5 from A5 (cd28 - cd22 = 0x0006)
|
|
||||||
write 6 to address @A5(44f28) and decrement A5
|
|
||||||
write D4(46e3c) to address @a6(44f26) and decrement a5
|
|
||||||
lea ($2, A1), A5 - i.e. increment A1 by 2, and write that to A5, so write CD06+2=CD08 to A5
|
|
||||||
A1->D5
|
|
||||||
A0->D4
|
|
||||||
read next stream byte (in this case, 0x03) from address pointed to by A5 (which is CD08), inc A5, OR the opcode (0x03) to D7
|
|
||||||
|
|
||||||
*/
|
|
||||||
/*
|
|
||||||
static ADDRESS_MAP_START(swyft_mem, AS_PROGRAM, 8, cat_state)
|
|
||||||
ADDRESS_MAP_UNMAP_HIGH
|
|
||||||
AM_RANGE(0x000000, 0x00ffff) AM_ROM AM_MIRROR(0xF00000) // 64 KB ROM
|
|
||||||
AM_RANGE(0x040000, 0x07ffff) AM_RAM AM_MIRROR(0xF00000) AM_SHARE("p_swyft_vram") // 256 KB RAM
|
|
||||||
AM_RANGE(0x0d0000, 0x0d000f) AM_READ(swyft_d0000) AM_MIRROR(0xF00000) // status of something? reads from d0000, d0004, d0008, d000a, d000e
|
|
||||||
AM_RANGE(0x0e1000, 0x0e1000) AM_DEVWRITE("acia6850", acia6850_device, control_w) AM_MIRROR(0xF00000) // 6850 ACIA lives here
|
|
||||||
AM_RANGE(0x0e2000, 0x0e2fff) AM_READWRITE(swyft_via0_r, swyft_via0_w) AM_MIRROR(0xF00000)// io area with selector on a9 a8 a7 a6?
|
|
||||||
AM_RANGE(0x0e4000, 0x0e4fff) AM_READWRITE(swyft_via1_r, swyft_via1_w) AM_MIRROR(0xF00000)
|
|
||||||
ADDRESS_MAP_END
|
|
||||||
|
|
||||||
MACHINE_START_MEMBER(cat_state,swyft)
|
|
||||||
{
|
|
||||||
m_via0->write_ca1(1);
|
|
||||||
m_via0->write_ca2(1);
|
|
||||||
m_via0->write_cb1(1);
|
|
||||||
m_via0->write_cb2(1);
|
|
||||||
|
|
||||||
m_via1->write_ca1(1);
|
|
||||||
m_via1->write_ca2(1);
|
|
||||||
m_via1->write_cb1(1);
|
|
||||||
m_via1->write_cb2(1);
|
|
||||||
}
|
|
||||||
|
|
||||||
MACHINE_RESET_MEMBER(cat_state,swyft)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
VIDEO_START_MEMBER(cat_state,swyft)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
UINT32 cat_state::screen_update_swyft(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
|
|
||||||
{
|
|
||||||
UINT16 code;
|
|
||||||
int y, x, b;
|
|
||||||
|
|
||||||
int addr = 0;
|
|
||||||
for (y = 0; y < 242; y++)
|
|
||||||
{
|
|
||||||
int horpos = 0;
|
|
||||||
for (x = 0; x < 40; x++)
|
|
||||||
{
|
|
||||||
code = m_p_swyft_videoram[addr++];
|
|
||||||
for (b = 7; b >= 0; b--)
|
|
||||||
{
|
|
||||||
bitmap.pix16(y, horpos++) = (code >> b) & 0x01;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
READ8_MEMBER( cat_state::swyft_d0000 )
|
|
||||||
{
|
|
||||||
// wtf is this supposed to be?
|
|
||||||
UINT8 byte = 0xFF; // ?
|
|
||||||
logerror("mystery device: read from 0x%5X, returning %02X\n", offset+0xD0000, byte);
|
|
||||||
return byte;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
// if bit is 1 enable: (obviously don't set more than one bit or you get bus contention!)
|
|
||||||
// acia
|
|
||||||
// via0
|
|
||||||
// via1
|
|
||||||
// x x x x 1 1 ?1? ?0? ? ^ ^ ^ ? ? * * * * ?*? ? ? ? ? ?
|
|
||||||
// ^ ^ ^ ^ <- these four bits address the VIA registers? is this correct?
|
|
||||||
static const char *const swyft_via_regnames[] = { "0: ORB/IRB", "1: ORA/IRA", "2: DDRB", "3: DDRA", "4: T1C-L", "5: T1C-H", "6: T1L-L", "7: T1L-H", "8: T2C-L" "9: T2C-H", "A: SR", "B: ACR", "C: PCR", "D: IFR", "E: IER", "F: ORA/IRA*" };
|
|
||||||
|
|
||||||
READ8_MEMBER( cat_state::swyft_via0_r )
|
|
||||||
{
|
|
||||||
if (offset&0x000C3F) fprintf(stderr,"VIA0: read from invalid offset in 68k space: %06X!\n", offset);
|
|
||||||
UINT8 data = m_via0->read(space, (offset>>6)&0xF);
|
|
||||||
#ifdef DEBUG_SWYFT_VIA0
|
|
||||||
logerror("VIA0 register %s read by cpu: returning %02x\n", swyft_via_regnames[(offset>>5)&0xF], data);
|
|
||||||
#endif
|
|
||||||
return data;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::swyft_via0_w )
|
|
||||||
{
|
|
||||||
#ifdef DEBUG_SWYFT_VIA0
|
|
||||||
logerror("VIA0 register %s written by cpu with data %02x\n", swyft_via_regnames[(offset>>5)&0xF], data);
|
|
||||||
#endif
|
|
||||||
if (offset&0x000C3F) fprintf(stderr,"VIA0: write to invalid offset in 68k space: %06X, data: %02X!\n", offset, data);
|
|
||||||
m_via1->write(space, (offset>>6)&0xF, data);
|
|
||||||
}
|
|
||||||
|
|
||||||
READ8_MEMBER( cat_state::swyft_via1_r )
|
|
||||||
{
|
|
||||||
if (offset&0x000C3F) fprintf(stderr," VIA1: read from invalid offset in 68k space: %06X!\n", offset);
|
|
||||||
UINT8 data = m_via1->read(space, (offset>>6)&0xF);
|
|
||||||
#ifdef DEBUG_SWYFT_VIA1
|
|
||||||
logerror(" VIA1 register %s read by cpu: returning %02x\n", swyft_via_regnames[(offset>>5)&0xF], data);
|
|
||||||
#endif
|
|
||||||
return data;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::swyft_via1_w )
|
|
||||||
{
|
|
||||||
#ifdef DEBUG_SWYFT_VIA1
|
|
||||||
logerror(" VIA1 register %s written by cpu with data %02x\n", swyft_via_regnames[(offset>>5)&0xF], data);
|
|
||||||
#endif
|
|
||||||
if (offset&0x000C3F) fprintf(stderr," VIA1: write to invalid offset in 68k space: %06X, data: %02X!\n", offset, data);
|
|
||||||
m_via0->write(space, (offset>>6)&0xF, data);
|
|
||||||
}
|
|
||||||
|
|
||||||
// first via
|
|
||||||
READ8_MEMBER( cat_state::via0_pa_r )
|
|
||||||
{
|
|
||||||
logerror("VIA0: Port A read!\n");
|
|
||||||
return 0xFF;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::via0_pa_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: Port A written with data of 0x%02x!\n", data);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via0_ca2_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: CA2 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
READ8_MEMBER( cat_state::via0_pb_r )
|
|
||||||
{
|
|
||||||
logerror("VIA0: Port B read!\n");
|
|
||||||
return 0xFF;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::via0_pb_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: Port B written with data of 0x%02x!\n", data);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via0_cb1_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: CB1 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via0_cb2_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: CB2 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via0_int_w )
|
|
||||||
{
|
|
||||||
logerror("VIA0: INT output set to %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
// second via
|
|
||||||
READ8_MEMBER( cat_state::via1_pa_r )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: Port A read!\n");
|
|
||||||
return 0xFF;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::via1_pa_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: Port A written with data of 0x%02x!\n", data);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via1_ca2_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: CA2 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
READ8_MEMBER( cat_state::via1_pb_r )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: Port B read!\n");
|
|
||||||
return 0xFF;
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE8_MEMBER( cat_state::via1_pb_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: Port B written with data of 0x%02x!\n", data);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via1_cb1_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: CB1 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via1_cb2_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: CB2 written with %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER ( cat_state::via1_int_w )
|
|
||||||
{
|
|
||||||
logerror(" VIA1: INT output set to %d!\n", state);
|
|
||||||
}
|
|
||||||
|
|
||||||
WRITE_LINE_MEMBER( cat_state::write_acia_clock )
|
|
||||||
{
|
|
||||||
m_acia6850->write_txc(state);
|
|
||||||
m_acia6850->write_rxc(state);
|
|
||||||
}
|
|
||||||
*/
|
|
||||||
|
|
||||||
//static MACHINE_CONFIG_START( swyft, cat_state )
|
|
||||||
|
|
||||||
/* basic machine hardware */
|
|
||||||
/*MCFG_CPU_ADD("maincpu",M68008, XTAL_15_8976MHz/2) //MC68008P8, Y1=15.8976Mhz, clock GUESSED at Y1 / 2
|
|
||||||
MCFG_CPU_PROGRAM_MAP(swyft_mem)
|
|
||||||
|
|
||||||
MCFG_MACHINE_START_OVERRIDE(cat_state,swyft)
|
|
||||||
MCFG_MACHINE_RESET_OVERRIDE(cat_state,swyft)
|
|
||||||
*/
|
|
||||||
/* video hardware */
|
|
||||||
/*MCFG_SCREEN_ADD("screen", RASTER)
|
|
||||||
MCFG_SCREEN_REFRESH_RATE(50)
|
|
||||||
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) *//* not accurate */
|
|
||||||
/*MCFG_SCREEN_SIZE(320, 242)
|
|
||||||
MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 242-1)
|
|
||||||
MCFG_SCREEN_UPDATE_DRIVER(cat_state, screen_update_swyft)
|
|
||||||
MCFG_SCREEN_PALETTE("palette")
|
|
||||||
|
|
||||||
MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
|
|
||||||
|
|
||||||
MCFG_VIDEO_START_OVERRIDE(cat_state,swyft)
|
|
||||||
|
|
||||||
MCFG_DEVICE_ADD("acia6850", ACIA6850, 0)
|
|
||||||
// acia rx and tx clocks come from one of the VIA pins and are tied together, fix this below? acia e clock comes from 68008
|
|
||||||
MCFG_DEVICE_ADD("acia_clock", CLOCK, (XTAL_15_8976MHz/2)/5) // out e clock from 68008, ~ 10in clocks per out clock
|
|
||||||
MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(cat_state, write_acia_clock))
|
|
||||||
|
|
||||||
MCFG_DEVICE_ADD("via6522_0", VIA6522, (XTAL_15_8976MHz/2)/5) // out e clock from 68008
|
|
||||||
MCFG_VIA6522_READPA_HANDLER(READ8(cat_state, via0_pa_r))
|
|
||||||
MCFG_VIA6522_READPB_HANDLER(READ8(cat_state, via0_pb_r))
|
|
||||||
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(cat_state, via0_pa_w))
|
|
||||||
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(cat_state, via0_pb_w))
|
|
||||||
MCFG_VIA6522_CB1_HANDLER(WRITELINE(cat_state, via0_cb1_w))
|
|
||||||
MCFG_VIA6522_CA2_HANDLER(WRITELINE(cat_state, via0_ca2_w))
|
|
||||||
MCFG_VIA6522_CB2_HANDLER(WRITELINE(cat_state, via0_cb2_w))
|
|
||||||
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(cat_state, via0_int_w))
|
|
||||||
|
|
||||||
MCFG_DEVICE_ADD("via6522_1", VIA6522, (XTAL_15_8976MHz/2)/5) // out e clock from 68008
|
|
||||||
MCFG_VIA6522_READPA_HANDLER(READ8(cat_state, via1_pa_r))
|
|
||||||
MCFG_VIA6522_READPB_HANDLER(READ8(cat_state, via1_pb_r))
|
|
||||||
MCFG_VIA6522_WRITEPA_HANDLER(WRITE8(cat_state, via1_pa_w))
|
|
||||||
MCFG_VIA6522_WRITEPB_HANDLER(WRITE8(cat_state, via1_pb_w))
|
|
||||||
MCFG_VIA6522_CB1_HANDLER(WRITELINE(cat_state, via1_cb1_w))
|
|
||||||
MCFG_VIA6522_CA2_HANDLER(WRITELINE(cat_state, via1_ca2_w))
|
|
||||||
MCFG_VIA6522_CB2_HANDLER(WRITELINE(cat_state, via1_cb2_w))
|
|
||||||
MCFG_VIA6522_IRQ_HANDLER(WRITELINE(cat_state, via1_int_w))
|
|
||||||
MACHINE_CONFIG_END
|
|
||||||
*/
|
|
||||||
/* ROM definition */
|
|
||||||
/*ROM_START( swyft )
|
|
||||||
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
|
|
||||||
ROM_SYSTEM_BIOS( 0, "v331", "IAI Swyft Version 331 Firmware")
|
|
||||||
ROMX_LOAD( "331-lo.u30", 0x0000, 0x8000, CRC(d6cc2e2f) SHA1(39ff26c18b1cf589fc48793263f280ef3780cc61), ROM_BIOS(1))
|
|
||||||
ROMX_LOAD( "331-hi.u31", 0x8000, 0x8000, CRC(4677630a) SHA1(8845d702fa8b8e1a08352f4c59d3076cc2e1307e), ROM_BIOS(1))*/
|
|
||||||
/* this version of the swyft code identifies itself at 0x3FCB as version 330 */
|
|
||||||
/*ROM_SYSTEM_BIOS( 1, "v330", "IAI Swyft Version 330 Firmware")
|
|
||||||
ROMX_LOAD( "infoapp.lo.u30", 0x0000, 0x8000, CRC(52c1bd66) SHA1(b3266d72970f9d64d94d405965b694f5dcb23bca), ROM_BIOS(2))
|
|
||||||
ROMX_LOAD( "infoapp.hi.u31", 0x8000, 0x8000, CRC(83505015) SHA1(693c914819dd171114a8c408f399b56b470f6be0), ROM_BIOS(2))
|
|
||||||
ROM_REGION( 0x4000, "pals", ROMREGION_ERASEFF )*/
|
|
||||||
/* Swyft PALs:
|
|
||||||
* The Swyft has four PALs, whose rough function can be derived from their names:
|
|
||||||
* TIMING - state machine for DRAM refresh/access; handles ras/cas and choosing whether the video out shifter or the 68k is accessing ram. also divides clock
|
|
||||||
* DECODE - address decoder for the 68008
|
|
||||||
* VIDEO - state machine for the video shifter (and vblank/hblank?)
|
|
||||||
* DISK 3.5 - state machine for the floppy drive interface
|
|
||||||
*/
|
|
||||||
/* U9: Timing AMPAL16R4
|
|
||||||
*
|
|
||||||
* pins:
|
|
||||||
* 111111111000000000
|
|
||||||
* 987654321987654321
|
|
||||||
* ??QQQQ??EIIIIIIIIC
|
|
||||||
* |||||||||||||||||\-< /CK input - 15.8976mhz crystal and transistor oscillator
|
|
||||||
* ||||||||||||||||\--< ?
|
|
||||||
* |||||||||||||||\---< ?
|
|
||||||
* ||||||||||||||\----< ?
|
|
||||||
* |||||||||||||\-----< ?<also input to decode pal pin 1, video pal pin 1, source is ?>
|
|
||||||
* ||||||||||||\------< ?
|
|
||||||
* |||||||||||\-------< ?
|
|
||||||
* ||||||||||\--------< ?
|
|
||||||
* |||||||||\---------< ?
|
|
||||||
* ||||||||\----------< /OE input - shorted to GND
|
|
||||||
* |||||||\-----------? ?
|
|
||||||
* ||||||\------------? ?
|
|
||||||
* |||||\------------Q> /ROM_OE (to both eproms through jumper b1 and optionally j9 connector)
|
|
||||||
* ||||\-------------Q? ?
|
|
||||||
* |||\--------------Q? ?
|
|
||||||
* ||\---------------Q> output to decode pal pin 2
|
|
||||||
* |\----------------->? output? to ram multiplexer 'A' pins
|
|
||||||
* \------------------< ?
|
|
||||||
*/
|
|
||||||
//ROM_LOAD( "timing_b.ampal16r4a.u9.jed", 0x0000, 0xb08, CRC(643e6e83) SHA1(7db167883f9d6cf385ce496d08976dc16fc3e2c3))
|
|
||||||
/* U20: Decode AMPAL16L8
|
|
||||||
*
|
|
||||||
* pins:
|
|
||||||
* 111111111000000000
|
|
||||||
* 987654321987654321
|
|
||||||
* O??????OIIIIIIIIII
|
|
||||||
* |||||||||||||||||\-< TIMING PAL pin 5
|
|
||||||
* ||||||||||||||||\--< TIMING PAL pin 17
|
|
||||||
* |||||||||||||||\---< 68008 R/W (pin 30)
|
|
||||||
* ||||||||||||||\----< 68008 /DS (pin 29)
|
|
||||||
* |||||||||||||\-----< 68008 E (pin 38)
|
|
||||||
* ||||||||||||\------< 68008 A19
|
|
||||||
* |||||||||||\-------< 68008 A18
|
|
||||||
* ||||||||||\--------< 68008 A17
|
|
||||||
* |||||||||\---------< 68008 A16
|
|
||||||
* ||||||||\----------< ?
|
|
||||||
* |||||||\-----------> ?
|
|
||||||
* ||||||\------------? 68008 /VPA (pin 39)
|
|
||||||
* |||||\-------------> /ROM_OE (to both eproms through jumper b1 and optionally j9 connector)
|
|
||||||
* ||||\--------------? ?
|
|
||||||
* |||\---------------? ?
|
|
||||||
* ||\----------------? ?
|
|
||||||
* |\-----------------? goes to j9 connector pin 5
|
|
||||||
* \------------------< ?
|
|
||||||
*/
|
|
||||||
//ROM_LOAD( "decode_e.ampal16l8.u20.jed", 0x1000, 0xb08, CRC(0b1dbd76) SHA1(08c144ad7a7bbdd53eefd271b2f6813f8b3b1594))
|
|
||||||
//ROM_LOAD( "video_2b.ampal16r4.u25.jed", 0x2000, 0xb08, CRC(caf91148) SHA1(3f8ddcb512a1c05395c74ad9a6ba7b87027ce4ec))
|
|
||||||
//ROM_LOAD( "disk_3.5c.ampal16r4.u28.jed", 0x3000, 0xb08, CRC(fd994d02) SHA1(f910ab16587dd248d63017da1e5b37855e4c1a0c))
|
|
||||||
//ROM_END
|
|
||||||
|
|
||||||
ROM_START( cat )
|
ROM_START( cat )
|
||||||
ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASEFF )
|
ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASEFF )
|
||||||
// SYS ROM
|
// SYS ROM
|
||||||
@ -1840,5 +1155,4 @@ ROM_END
|
|||||||
/* Driver */
|
/* Driver */
|
||||||
|
|
||||||
/* YEAR NAME PARENT COMPAT MACHINE INPUT DEVICE INIT COMPANY FULLNAME FLAGS */
|
/* YEAR NAME PARENT COMPAT MACHINE INPUT DEVICE INIT COMPANY FULLNAME FLAGS */
|
||||||
//COMP( 1985, swyft,0, 0, swyft, swyft, driver_device, 0, "Information Applicance Inc", "Swyft", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
|
|
||||||
COMP( 1987, cat, 0, 0, cat, cat, driver_device, 0, "Canon", "Cat", MACHINE_NOT_WORKING)
|
COMP( 1987, cat, 0, 0, cat, cat, driver_device, 0, "Canon", "Cat", MACHINE_NOT_WORKING)
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user