W8SDZ@SIMTEL20.ARPA (08/29/84)
From: Keith Petersen <W8SDZ@SIMTEL20.ARPA> Commodore-64 owners who need a program to do file transfers to/from CP/M systems (and others using the Christensen MODEM/XMODEM/MODEM7 protocol) will be interested in XMODEM64.BAS which is now available from SIMTEL20. I don't have a C64 but as near as I can determine, the program is written to run on Commodore Basic and does not require the CP/M cartridge. Filename Type Bytes Sectors CRC Directory MICRO:<CPM.COMMODORE> XMODEM64.BAS.1 ASCII 5234 41 = 29H 50D0H --Keith
prindle@NADC.ARPA (08/30/84)
Unfortunately, Commodore BASIC programs, of which this one is no exception, utilize control characters, both normal ascii ones and ones with the high order bit set (ie. chr$(x) where x>127), and are thus not amenable to storage and transfer as normal ascii files. All of the cursor positioning characters and reverse field characters are missing from MICRO:<CPM.COMMODORE>XMODEM64.BAS. Commodore BASIC programs must be treated (especially by XMODEM programs themselves) as "binary", not text, and are best transmitted as hex files. Of course, it is possible to write a C64 program which uses only the normal ascii subset, but I haven't seen one (nontrivial) yet!