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- TITLE 'History file for CP/M MODEM program VERSION 7.97'
-
- *****************************
-
- ;12/27/82 Made the following changes:
- ; 1. Fixed MSPEED references and transmission time
- ; calculations to work up to 9600 baud.
- ; 2. Changed 'CPM' command to 'END'.
- ; 3. Added logic so that if MODEM is executed with
- ; a command line option, it exits to the operating
- ; system when that operation completes. If no options
- ; appear on the CCP command line, MODEM operates as
- ; before, prompting for commands and returning to
- ; MODEM's prompt upon completion. This is consistent
- ; with most other utilities and makes it possible to
- ; run MODEM from a SUBMIT file.
- ; 4. Eliminated extra call to JMP$INITMOD in INITADR.
- ; 5. Added LXI SP,STACK at RESTART: to make things
- ; more bullet-proof.
- ; 6. Re-enabled 'B' suboption on invocation.
- ; 7. INITMOD and SETUPR are now called with DE pointing
- ; to CMDBUF+1. This makes it possible for custom
- ; routines in overlay file to scan buffer for options.
- ; 8. File send can be aborted by ^X from remote while
- ; awaiting initial NAK.
- ; 9. Time estimate and file size are always printed for
- ; single file transfer, even if Q mode.
- ; 10. If the .BAK creation option is enabled, it applies
- ; to both single file and batch receives, and the
- ; "Duplicate file - delete?" question is not asked.
- ; 11. Help menus and LOG command can be aborted by ^C.
- ;
- ; Bruce R. Ratoff
-
- ;12/20/82 Added help screen for PMMI. R. L. Plouffe
-
- ;12/17/82 Made the following changes:
- ;
- ; 1. Fixed initial timeout delay on receiving a file,
- ; 2. Revised XOFF/XON testing routines,
- ; 3. Revised routines for terminal mode file output rates,
- ; 4. Revised routine to change user number to allow
- ; better checking of input errors,
- ; 5. Suppressed user 0 display after default drive message,
- ; 6. Changed timing routines to allow up to 8 MHz clock,
- ; 7. Added routines to memory buffer printer.
- ; P. L. Kelley
-
- ;12/12/82 Revised send file message in library and reformatted library.
- ; I. M. Hoff
-
- ;12/04/82 Added routines to change user number and display user number
- ; after default drive message. G. Kantor
-
- ;11/30/82 Made the following changes:
- ;
- ; 1. Put SECTNOE in proper location,
- ; 2. Added optional XOFF/XON testing to terminal mode
- ; file output routines,
- ; 3. Added MSPEED setting to PMMI baud rate routines,
- ; 4. Fixed quiet mode,
- ; 5. Expanded command line again to help novices,
- ; 6. Changed to XMODEM routine for receiver to
- ; request CRC mode from sender and added routine
- ; to switch to checksum mode after 6 timeouts.
- ; P. L. Kelley and R. L. Plouffe
-
- ;11/26/82 Replaced "CDD" command with "LOG", and fixed associated code.
- ; Replaced "CUR" with "?" for easier working of a much used
- ; function. Shortened command line, same info in less space.
- ; Normal changes to menus done to reflect new commands.
- ; Mark J. Pulver
-
- ;11/18/81 Combined 11/08/82 and 11/10/82.
- ;
- ; Made the following changes:
- ;
- ; 1. Added optional routine to overlay file to clear screen
- ; and home cursor on paging of menu etc.,
- ; 2. Changed printer toggle to terminal mode command and made
- ; optional with overlay file,
- ; 3. Changed routines to set MSPEED when changing buad rate with
- ; SET command,
- ; 4. Added more information to display of current settings
- ; and used calls to save space,
- ; 5. Fixed and shortened bytes free routine,
- ; 6. Shortened and separated LIB SENDTIME routine into two parts
- ; so that it can be used in display of current settings,
- ; 7. Made echo mode part of normal terminal mode to save space
- ; and make all terminal mode commands available in echo mode,
- ; 8. Fixed PMMI BYE routine so that it works with overlay file,
- ; 9. Eliminated F command as redundant, DIR FOO (where FOO is a
- ; nonexistent file) accomplishes the same thing.
- ; ;P.L.Kelley
-
- ;11/10/82 Combined MODEM771 and MODEM780 (F. Gaude) as follows:
- ;
- ; 1. Used erase file function in 780,
- ; 2. Used 780 code to make display of error count start at 1
- ; and changed display to decimal,
- ; 3. Used 780 idea for throttled output on terminal mode
- ; transfer of text file to remote but wrote new routines
- ; including one for user to set speed,
- ; 4. Moved disk reset to DIR routine as in 780,
- ; 5. Used 780 code to give kbytes free on DIR command but
- ; modified to give kbytes free on requested drive instead
- ; of default drive.
- ;
- ; Made the following changes:
- ;
- ; 1. Eliminated IMSAI front panel routines,
- ; 2. Changed so PMMI control-D (disconnect) checks for file
- ; open on returning to menu mode,
- ; 3. Fixed file display on bulk transfer so that spaces are
- ; eliminated and period is inserted if required,
- ; 4. Changed M(enu) to H(elp) command,
- ; 5. Added code to allow echo mode to use optional toggling of
- ; send linefeed after carriage return,
- ; 6. Added toggling of Checksum/CRC modes on file receive,
- ; 7. Added optional code to clear to end of screen on next line
- ; from current cursor position when returning from terminal
- ; mode, this eliminates jumbled screen when working remote
- ; which positions cursor.
- ; ;P.L.Kelley
-
- ;11/08/82 4 new commands added. "?" will show the status of various
- ; options. "LOG" will allow the current disk to be changed,
- ; "LOG drive" will change the default drive. This tends to
- ; be redundant with "RST", but I've left RST in for those
- ; who are used to it. "LST" will toggle echoing to the LST
- ; device on and off. "LOC" will toggle local echo on and off.
- ; The latter should be used to replace the "E" option, again
- ; left in for compatability.
- ;
- ; A long standing bug in the dial routines has been fixed. If
- ; one had answered "Y" or "C" to the "...Redial..." question,
- ; You would find that yourself dialing whatever was in menu
- ; position "C". This would only happen if the number to be
- ; called was entered on the command line, and not if chosen
- ; from the menu, this came from the "C" in "CAL". A second bug
- ; showed up when "N" was answered to the same prompt, the modem
- ; would be left off hook.
- ;
- ; The logic for a menu choice has been changed, the menu is
- ; now displayed before the modem grabs the line. This way, you
- ; have time to make a selection before a Ma Bell time out.
- ;
- ; Buffer activity logic has been added to the command line,
- ; which has also been made a bit more brief.
- ;
- ; Menus have been changed to reflect the new options, and
- ; some cosmetics have been changed.
- ;
- ; Mark J. Pulver AIMS (312) 789-0499
- ; 24hrs / 7 Days PMMI
- ;
-
- ;11/02/82 Shows the time to send a file. (Routine was placed in
- ; MODEM791.LIB). Set MSPEED to the speed you normally use.
- ; Currently set at 300 Baud. Can reset at any time using the
- ; menu. - Irv Hoff
-
- ;10/20/82 Made the following changes:
- ;
- ; 1. New 'F' command shows free disk space on default drive
- ; and resets drive to prevent R/O errors when attempting
- ; to upload to default disk.
- ; 2. Requesting DIR also shows free disk space and resets the
- ; current drive. (From F. Gaude's 780).
- ; 3. Heading automatically tells if set for PMMI Modem or not.
- ; (Previously always indicated it was PMMI-only.)
- ; 4. Grouped all TRUE/FALSE statements together.
- ; 5. Put 'PMMIBYTE' immediately after ORG 0100H.
- ; 6. Increased checksum timeout to original value (10 seconds)
- ; to agree with CRC timeout. This should allow adequate
- ; time for slow disk systems to write.
- ; - Irv Hoff
-
- ;10/16/82 Made the following changes:
- ;
- ; 1. Added optional toggling of send linefeed after carriage
- ; return,
- ; 2. Added optional local command to send logon,
- ; 3. Added routines to give message on execution concerning
- ; the system for which the program has been configured.
- ; ;P.L.Kelley
-
- ;10/10/82 Rename fix log to MODEM770.HIS. Modifiers of MODEM7
- ; should update this file with fix information and change
- ; version number. ;PLK
-
- ;10/10/82 Made the following changes:
- ;
- ; 1. Corrected bug in routine to check local command
- ; to set baud rate,
- ; 2. Corrected bug in NEWFILE routine,
- ; 3. Reordered the configuration section to make it
- ; easier to change,
- ; 4. Introduced two optional toggles:
- ; a. backspace to rub - on/off,
- ; b. send local command to remote unless special character/
- ; use local command locally unless special character,
- ; 5. Give new configuration message on toggles,
- ; 6. If text file open give message on exiting terminal mode
- ; about possible buffer loss,
- ; 7. Give error message on reset disk to R/W attempt when file
- ; open,
- ; 8. Give error message if no file open when DEL, NOL or
- ; WRT attempted,
- ; 9. Give error message if command invalid,
- ; 10. Move PMMI dialing routines so they also can be overlaid
- ; by non-PMMI user routines. ;P.L.Kelley
-
- ;10/01/82 Again moved fix log to MODEM7XX.HIS ;PLK
-
- ;10/01/82 Made changes to outer shell to make program more "user
- ; friendly", as follows:
- ;
- ; 1. Menu now has three screens of instructions,
- ; 2. if NOT PMMI then PMMI instructions eliminated from Menu,
- ; 3. eliminated XPR mode - replaced with M prompt from
- ; Menu command line,
- ; 4. Menu display routine gets user chosen values for local
- ; commands,
- ; 5. added Menu command to reset disks to R/W,
- ; 6. added Menu command to display phone numbers for non-PMMI
- ; users,
- ; 7. added Menu command for non-PMMI users to employ routine
- ; from user overlay to reset modem ports.
- ;
- ; Made following additions to user overlay options:
- ;
- ; 1. added table of local command values,
- ; 2. added option to convert backspace to rub,
- ; 3. added option for transmit local character unless
- ; preceded by special character,
- ; 4. added parameter to test for existence of user overlay
- ; routine to reset modem ports from Menu.
- ;
- ; Made changes to main line routine checks of user overlay as
- ; follows:
- ;
- ; 1. get local command values,
- ; 2. test for convert backspace to rub option,
- ; 3. not use disconnect local command if non-PMMI user,
- ; 4. always check overlay for IMSAI before front panel output,
- ; 5. test whether local command must be preceded by special
- ; character.
- ;
- ; Also, wrote overlay file entitled M769CNFG.ASM which user can
- ; edit to:
- ;
- ; 1. change the modem ports,
- ; 2. change options as appropriate to his system,
- ; 3. change other options to suit his taste,
- ; 4. include an optional routine to initalize his modem
- ; on execution of MODEM7,
- ; 5. include an optional routine to reset his modem from
- ; the Menu.
- ; (Examples of 4 and 5 are given in the
- ; file for the case of the H89.)
- ; ;P.L.Kelley
-
- ;08/14/82 Changed timeout in RCVSQ to 10 seconds instead of 3 secs.
- ; to allow time for loading of large buffers before deciding
- ; to switch to checksum mode. ;RLP
-
- ;07/04/82 Changes in 'S2' area. When in "T" mode, a CTL-Y allows copy
- ; into the file, CTL-K stops copy into the file. 'MENU2:' area
- ; shows these controls. EQU tables more logically arranged at
- ; beginning. Extensive changes for more uniform appearance.
- ; ;IMH
-
- ;05/29/82 Moved fix log to history file. MODEM7xx.HIS
- RLP
-
- ;05/29/82 Fixed SAVCCP option when set to false. RLP
-
- ;05/21/82 Fixed minor bug at DISCON1 by changing JMP MENU1 to
- ;JMP MENU so that recovery is correct from a control-X interrupt
- ;AFTER auto dialling a number. RLP
-
- ;05/16/82 Added RCVFIL1 label so that switch between CRC mode
- ;and CHECKSUM mode is done only on the first file transfer in
- ;batch mode. Else the program hangs up on the second file transfer
- ;if the sending end is not CRC capable. Also added 'BYE' command
- ;to MODEM command line which disconnects (hangs up) the modem line
- ;and re-boots your computer. (Good to arrange it to do a turnkey
- ;start of 'BYE' so ready for next call). You must have the coldboot
- ;prom address entered for your system at label CLDBOOT.
- ;Changes marked ;@FIX7.61 or ;@7.63
- ; R. L. Plouffe
-
- ;04/29/82 Changes at TERM, START1 and OPTCK marked by ; @7.61
- ;fix a bug that causes abort at the end of a file transfer if
- ;the ogiginate 'O' or the answer 'A' character was not entered
- ;after the 'T' term character when switching between term and
- ;menu. Now the ogiginate or answer character has to only be
- ;entered once when comunications is first established. Also
- ;changed the MACLIB mico to MODEM75. Added CR,LF to the NEWBAUD
- ;message.
- ; R.L.Berg
- ;
- ;4/12/82 Merged in changes/enhancements from versions 7.32
- ;and 7.4 and MODEM75.FIX. This should hopefully give us one
- ;"master" version again. B. R. Ratoff
- ;Summary:
- ; @7.32 - Delay loop at DILAGN1 to allow "smart" terminals time
- ; to process bell character.
- ;
- ; @MODEM75.FIX - Maintain originate mode on RET command after
- ; transferring files (at TERM:). Restore option tables correctly
- ; on control-D command (at DIR). Issue "file open" message on
- ; receive (at RCVC3).
- ; @7.41 - Make CRC/checksum switching on Receive automatic....
- ; assumes CRC and defaults to checksum on timeout.
- ;
- ;2/20/82 Changes at TERM and START1 marked by ; @7.5 fix a
- ;long standing bug in MODEM7x that causes abort at the end of a
- ;batch file transfer or an attempt to transfer a non-existent
- ;file. The call to NOPARIT in DONETCE caused a computer that was
- ;in answer mode (but not explicitly by command option) to switch
- ;to originate mode thus causing the two ends to no longer communicate
- ;with each other. Also added SAVCCP byte and code to prevent
- ;overwriting of the CCP at the users option. R. L. Plouffe
- ;
- ;1/23/82 The following changes have been made in this version.
- ; RLP
- ;Extensive cleanup of the file including colons after all labels
- ;for easier search with screen editor for the purposes of debug.
- ;Also set file capture mode so as not to overwite the CCP and
- ;changed EXIT to return to the CCP instead of doing warm boot.
- ;
- ;TERML routine fix:
- ;Added Rick Kawala's fix so that fewer framing errors will occur
- ;with hosts that send out characters with high bit set.
- ;
- ;CAL command fix:
- ; All versions of MODEM7 including MODEM73 are supposed to be
- ;able to accept "CAL n" (where n is either a library letter or
- ;a phone-number string) as a valid form of the CAL command. In
- ;fact, however, the "n" will simply be ignored. This is because
- ;routine DIALPL checks for a command length >= 4 as a signal to
- ;skip the library display, but the menu routine, after
- ;recognizing CAL, sets the length to 1 so the L in CAL doesn't
- ;look like an illegal secondary option.
- ; The following kludge repairs this defect. In routine
- ;DIALPL, two lines above label DIALPL0, change CMDBUF+5 to
- ;CMDBUF+6. Also, in routine GETCMD, three lines above label
- ;NXTOPT2, change MVI A,1 to MVI A,20H and change the next line
- ;from STA CMDBUF+1 to STA CMDBUF+4. This makes the command
- ;look to the option processor like "CA n", and since A is a
- ;legal secondary option (which in this case is never used) the
- ;line passes muster. If an actual telephone number is used,
- ;you have to type an extra blank: CAL 000-0000, whereas
- ;with library numbers one blank only must be typed: CAL A.
-
- ;12/16/81 Removed stack imbalance bug at COLONB by adding
- ; a JMP BRK1. Change is marked by ;@ R. L. Plouffe
-
- ;11/21/81 Fixed code so byte received is on same line when
- ; messages "XXH RCD, NOT SOH" or "XXH RCD, NOT ACK"
- ; are displayed. Also changed stack size to 50H.
- ; (P.L.Kelley)
-
- ;10/29/81 Changed receive sector routine so that on the first
- ;time through when CRC is being used, it only waits 3 seconds
- ;to receive the SOH after sending the initial 'C'. If a
- ;character is not received within 3 seconds, then a NAK is
- ;sent and this program switches to CHECKSUM mode. The sending
- ;of the NAK causes XMODEM or MODEM to start sending the file
- ;using checksum checking. This allows the CRC MODEM7 program
- ;to be used with versions of XMODEM, MODEM, and MODEM7 that
- ;do not use CRC, even when MODEM7 has specified a CRC
- ;transmission. (John Mahr)
- ;
- ;10/18/81 Added CRC option. This is another secondary option
- ;that is specified by giving a 'C'.
- ; MODEM RC.600 fn.ft
- ; MODEM ROC.300 fn.ft etc.
- ; note: cannot have more than 6 secondary options.
- ;When the file receive cmd. specifies CRC, the ltr. 'C' is
- ;sent in place of the initial NAK. This signals the sender
- ;(XMODEM54 or equiv.) that CRC is in effect. The sending
- ;program will repalce the checksum with the CRC 2 bytes.
- ;CRC will give better than a 99.99% probability that there
- ;are no data errors. Code copied from MODEM213, thanks to
- ;John Mahr and Paul Hansknecht for the implementation. (WDE)
-
- ;10/11/81 Add first NAK to RCVFIL to speed up start
- ;Removed monitor scroll from good block messages
- ;CTL-^ forces send of next char in T mode (for ctl-E,ctl-D) (WDE)
-
- ;07/05/81 Added BRR ctrl char chgs, my number list (Bill Earnest)
-
- ;06/05/81 Deleted some unneeded messages in the dial routines. (Bob Clyne)
-
- ;05/31/81 Added detection of framing, overrun, and parity errors for
- ; Receive file routine. (A modified version of the routines in
- ; MODEM V2.06)
-
- ; Added provisions to send and receive either even or odd parity
- ; bit with PMMI modem in the 'S'end or 'R'eceive file modes - resets
- ; to no parity in other modes. Use of the parity feature will slow
- ; transfers slightly due to the extra (parity) bit being sent with
- ; each character. Also this is the only program that I KNOW OF that
- ; actually sends, or sets up the PMMI to receive, the parity bit.
- ; Both ends must be set to the same parity for it to work. Parity
- ; is invoked by adding a '0' (ASCII) for even parity or a '1' (ASCII)
- ; for odd parity to the 'S'end or 'R'eceive command string eg. R0.600.
-
- ; Changed timing for sending 'B'reak in the terminal mode.
-
- ; Changed the code so that the 'M'enu command works from the keyboard
- ; even when in XPR (expert) mode.
-
- ; Added display of hex in addition to decimal numbers for file length
- ; and sector numbers.
-
- ; Removed provision for remote cancel of file transfers in the 'S'end
- ; and 'R'eceive modes to prevent line noise from aborting a transfer.
- ; (Bob Clyne)
-
-
- ;02/15/81 Patched in the ringback routines from DIAL6/23. It doesn't
- ; seem to be able to recognize when the other phone is ringing
- ; though so it is a little shakey.
-
- ; Put in routines to calculate file sizes and sector numbers in
- ; decimal.
-
- ; Put in code to transmit a "BREAK" with a PMMI for use with
- ; computers which use BREAK instead of Control S to suspend
- ; output. Control P is now the baudrate change request key
- ; and Control @ is the BREAK key.. (Bob Clyne)
-
-
- ;12/18/80 Changed disconnect timing.
-
- ;10/26/80 Minor revision to allow 25-second 'wait' after PMMI
- ; autodial -- longer time required for Chicago CBBS*. Jim Mills.
- ; * CBBS is a trademark of Ward Christensen and Randy Suess.
-