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-
- SET UP ROUTINE FOR THE CP/M MODEM PROGRAM
- Version 7.97 12/26/82
-
-
- 12/26/82 Updated to v7.97 - Bruce Ratoff
- 12/20/82 Updated to v7.96 - Paul Kelley
- 12/12/82 Updated to v7.95 - Irv Hoff
- 11/30/82 Updated to v7.94 - Paul Kelley
-
-
- This information is given for those who do not wish to re-assemble
- the modem program for their system because they do not have the source
- code, or find this method simpler. Use 'DDT' or 'SID' or 'DUUP' to
- make the following changes for your computer. If using 'DDT' or 'SID'
- do this when finished:
-
- A>SAVE 64 MODEM797.COM
-
- Experienced assembly language programmers should note that there is more
- flexiblity if MCNFG797.HEX is used to overlay MODEM797.COM. MCNFG797.ASM
- allows you to set the parameters discussed below. It also provides a
- permanent source file for your modem initialization routines as well as
- allowing you to change the values of the local characters, improve the
- display output, add a routine for changing modem parameters, and define a
- logon sequence for use with remote systems. Users should also be aware of
- a similar overlay file, MCOSB797.ASM, set up for the Osborne-1 as an
- example of memory mapped I/O.
-
-
- 0103 FF <--- FF if PMMI modem, else 00.
-
- 0104 00 <--- Don't change.
-
- 0105 00 <--- Don't change.
-
- 0106 04 <--- Clock speed in MHz, 08 maximum
-
- 0107 00 <--- 00 if you want files that exist to be deleted if
- a file of the same name is sent in multi-file
- transfer. FF if you want the existing file
- to be changed to "BAK".
-
- Note: In CP/M 2.x, existing R/O or SYS files
- are changed to "BAK" whether this byte
- is set or not.
-
- 0108 00 <--- 00 for default to CRC, FF for default to checksum
-
- 0109 FF <--- FF allows toggling of Checksum to CRC
-
- 010A 00 <--- 00 leave backspace normal, FF convert to rubout
-
- 010B FF <--- FF allows toggling of backspace to rubout
-
- 010C 00 <--- 00 send CR-only, FF send CR-LF both (00 normal)
-
- 010D FF <--- FF allows toggling of line feed after carriage return
-
- 010E 00 <--- 00 don't change
-
- 010F FF <--- FF to prevent overwriting CCP, 00 if ok to overwrite
-
- 0110 00 <--- 00 not local command if control-^ precedes
-
- 0111 FF <--- FF allows toggling of local command on next char
-
- 0112 FF <--- FF allows toggling of printer on/off
-
- 0113 00 <--- FF for XOFF testing in terminal mode text file output
-
- 0114 00 <--- FF for wait for XON after CR in terminal mode output,
- useful for certain timesharing systems
-
- 0115 FF <--- FF allows toggling of XOFF/XON testing
-
- 0116 01 <--- Sets the default speed for showing time to send a
- file in "S" command. Select the one you normally
- use "most of the time" as you can easily change it
- temporarily using a menu command. Use one of these:
- 00=110, 01=300, 02=450, 03=600, 04=710, 05=1200
- 06=2400, 07=4800, 08=9600
-
- 0117 00 <--- 00 for no delay between characters. In terminal mode
- there are times when a delay is nice, like sending
- a pretyped file to a bulletin board system. Choices
- from 0-9.
- 00=no delay, 01=.02 seconds -- 09=0.18 seconds, etc.
-
- 0118 00 <--- 00 for no extra delay after CR. Some bulletin board
- systems, etc. require an extra delay after each CR.
- Choices from 0-9.
- 00=no delay, 01=.08 seconds -- 09=0.72 seconds, etc.
-
- 0119 1E <--- Bell repeat timing, 1E = about 1 second
-
-
- (area from 011A through 0120 does not need to be changed)
-
-
- 0121 7D <--- 7D for 20 PPS, FA for 10 PPS (PMMI board)
-
- 0122 00 00 <--- Put cold reboot address here if you (PMMI only)
- have one, set now to warm reboot
- Put "LSP" part first, then "MSP".
-
-
- (the following addresses skip bytes not necessary to change)
-
-
- 0128 C0 <--- Your modem control port (port C0H shown here).
-
- 012B C1 <--- Your modem data port "OUT" (port C1H shown here).
-
- 012E C1 <--- Your modem data port "IN" (port C1H shown here).
-
- 0131 01 <--- Your modem status bit for "transmit ready".
-
- 0134 01 <--- Your modem status bit level when ready to send.
-
- 0137 02 <--- Your modem status bit for "receive ready".
-
- 013A 02 <--- Your modem status bit for "receive ready".
-
- 013D C2 <--- Your modem Baud rate port "IN" (PMMI only)
-
- 0140 C2 <--- Your modem Baud rate port "OUT" (PMMI only)
-
- 0143 C3 <--- Your modem control port #2 (PMMI only)
-
- 0146 C0 <--- Your modem control port "OUT" (PMMI only)
-
-
- = = = = = = = = = = = = = = = = = = = = = = = =
-
-
- 014D C3 D9 01 "JMP 01D9" Many CP/M systems initialize the modem
- port via CONFIG.COM, etc. If you wish to
- NON-PMMI initialize the ports yourself, use the address
- shown here (01D9H) for your routine. End it
- with a C9 (RET). You have space up to 0617H.
-
- = = = = = = = = = = = = = = = = = = = = = = = =
-
-
- When finished with the changes, exit 'DDT' via CTL-C then save as shown
- at the start of this file.
-
-
- By Irv Hoff
-