CCGMS Future

Commodore Color Graphics Manipulation System Terminal
by Craig Smith (1985-1988), alwyz (2017-2020), Michael Steil (2022)

• based on 5.5 source by Craig Smith 01/1988.
• 2017-2021 mods by alwyz (see ccgmsterm2021 for final alwyz version)
• fixes and additions by Michael Steil, 2022

Features

• 40 column color mode
• 80 column color mode 🔴
• PETSCII and ASCII/ANSI encoding
• Serial drivers (stable on NTSC and PAL 🔴)
  • User Port (300-2400 baud)
  • UP9600 (300-9600 baud)
  • SwiftLink $DE00/$DF00/$D700/NMI (300-38400 baud)
• File transfer protocols:
  • Punter, Multi-Punter
  • XMODEM, XMODEM-CRC, XMODEM-1K 🔴
• Phone book with 30 entries and auto-dialer
• Configuration & phone book load/save (disk or EasyFlash)
• DOS command and directory
• Macros
• Screenshots
• Themes
• REU buffer (64 KB)

Documentation

CCGMS Future Documentation

Missing Features

• RR-Net support
• WiC64 support
• YMODEM/ZMODEM/HMODEM protocols
• IDE64 compatibility
• Additional cartridges (e.g. Lt. Kernal)
• 100% support for hardware acceleration devices (SuperCPU etc). Certain conditions may affect file transfer handshake timing.

Known Bugs

• #5: XMODEM (and possibly PUNTER) transmission may be broken for UP9600 devices
• #10: XMODEM/1K may fail for SwiftLink cartridges with a real 6551 chip

Build

Build with make & ca65.

Regular build:

make

EasyFlash build:

EASYFLASH=1 make

The EasyFlash version gives you the option of loading/saving the phonebook to cart and removes Swiftlink.

In either case, the resulting file will be build/ccgmsterm.prg.

Running in VICE

To run CCGMS in x64sc with SwiftLink at $DE00:

make runsw

x64sc with User Port:

make runup

x64sc VICE with UP9600 (receiving OK but sending broken as of VICE 3.6.2):

make runup9600

The x64sc command line has changed recently, so these need at least VICE 3.6.

Testing

This repository includes automated and manual tests. See Testing.

Interals

Internals.

Changelog

2022-03-20: Future 0.2

• Added support for a software 80 column screen mode
  • F8 now cycles: 40c PETSCII -> 40c ASCII -> 80c PETSCII -> 80c ASCII
  • All menus, transfers etc. temporarily switch back to 40 col screen. The 80 column contents will be preserved when temporarily switching.
  • In 80 color ASCII mode, the characters ^_`{|}~ are available, matching ASCII (unlike 40 col ASCII).
• Fixed ASCII-PETSCII conversion of codes 0x60 and 0x7B
• Changed some wording to be clearer (imho):
  • "Graphics" and "C/G" to "PETSCII"
  • "Anscii" to "ASCII"
  • "Author's Message" to "Instructions"
• Internal changes
  • rewrote RS232 driver model
  • cleaned up code memory layout

2022-02-25: Future 0.1

• Fixed timing for PAL in User Port and UP9600 drivers
• Implemented XMODEM-1K
  • protocol XMODEM-1K forces 1K on upload
  • any XMODEM protocol will accept 1K blocks on download
• XMODEM-CRC autodetect on upload
  • protocols XMODEM-CRC/-1K will force CRC on download
  • any XMODEM protocol will accept CRC on upload

2020-12-08: v2021 final

• Punter stack and Unlisted dialer bugs have been eliminated
• Support in autodialer for Zimodem and related WiFi device firmware that prefer an ATD prefix to ATDT.

2020-09-22: v2021 pre-beta2

bo zimmermans firmware (and maybe others) take issue with atdt, and prefer using atd instead for bbsing (uploads/downloads issue). hopefully this is the only issue with firmware compatibility. willing to solve this issue on the software side, though i'd prefer firmware uses a better standard. but fuck it, it's 2020 and who gives a shit anymore about standards on an 8 bit computer from the 1980s? so i added an atd/atdt menu option

2020-06-30: v2021 beta 1

• doing some bugfixing. dial unlisted doesnt restore bottom of screen after dial. now it does. cosmetic fix.
• abort punter crashes stack pointer because i bypassed jump table and apparently that is neccessary so its back in the calls from dowmen and f3 routines.

2020-05-23: v2020 beta 8

• easyflash false positive with reu detect. since ef and reu cant work together, added provisions at startup to prevent easyflash mode from even looking for an reu

2020-05-21: v2020 beta 7

• did some tweaks to autodialer. try counter now works to 99, and dial unlisted had some weird issues with that so that has been sorted as well.
• found one bug in the bottom screen display routine which has probably been there since ccgms 2017, but its good now.

2020-05-19: v2020 beta 6

• merged easyflash version into this one. only added 2 blocks. easier for maintaining
• still have some room from $5000-$5100 for more code/routines if need be. And can always add more code at $5c00 before the end

2020-05-18: v2020 beta 5

• fixing some possible issues with multi-upload. crashes between files. enablexfer not getting turned back on at the right time?
• re-did cf1 multi-upload enable/disablexfer calls... seems good now

2020-05-17: v2020 beta 4

• found a bug on the original punter sourcecode that incorrectly references var "delay" as delay 1 on 0 off, but in truth it is 1 off 0 on, so ive set both to delay on now update... ahh fuck it, no matter what, add delays every chance we can.... i disabled every opportunity to bypass delay around pnt106.

2020-05-16: v2020 beta 3

• f3 disablexfer improvements
• multi-receive disablexfer imrovements / trying to prevent crashing on multidownloads (noted on up9600)
• added punter handshake delays from ultimate version back in. baudrates faster than 2400 are definitely having problems with handshakes so its back!
• added jsr call to rsopen to baudrate changer. see if that fixes some weirdness

2020-05-14: v2020 beta 2

• first public beta. rewrite of pretty much everything....
• file transfers finally incorporate flow control. they never did before.
• resetvectors removed.
• re-wrote and optimized all modem drivers.
• removed a bunch of spaghetti code of my own making...

ultimate version

• 2019 by alwyz

version 2019

• 2019 by alwyz

version 2017

• 2017 by alwyz

Historic Versions

by Craig Smith

• version 5.5 -- jan 1988
• version 5.0 -- jan 1988
• version 4.5 -- may 1987
• version 4.1 -- oct 1986
• version 4.0 -- date unknown (mods by greg pfoutz,w/permission)
• version 3.0 -- aug 1985