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- ; MDM705us.ASM -- 8251 Usart overlay file MDM705. 830329:0755
- ;
- ; You will want to look this file over carefully. There are a number of
- ; options that you can use to configure the program to suit your taste.
- ;
- ; Edit this file for your preferences then follow the "TO USE:" example
- ; shown below.
- ;
- ; TO USE: First edit this file filling in answers for your own
- ; equipment. Then assemble with ASM.COM or equivalent
- ; assembler. Then use DDT to overlay the the results
- ; of this program to the original .COM file:
- ;
- ; A>DDT MDM705.COM
- ; DDT VERS 2.2
- ; NEXT PC
- ; 4180 0100
- ; -IMDM705CF.HEX (note the "I" command)
- ; -R ("R" loads in the .HEX file)
- ; NEXT PC
- ; 4180 0000
- ; -G0 (return to CP/M)
- ; A>SAVE 65 MDM705.COM (now have a modified .COM file)
- ;
- ; = = = = = = = = = = = = = = = = = =
- ;
- ; 83/03/29 - Modified to work with MDM705P - Greg Louis
- ; 10/03/82 - First version of this file - Paul Kelley (author)
- ;
- ; = = = = = = = = = = = = = = = = =
- ;
- TRUE: EQU 0FFH
- FALSE: EQU 0
- ;
- INITMODADR: EQU 01F8H ;**THESE TWO ADDRESSES SHOULD BE CHECKED
- SETUPRADR: EQU 242FH ;**BY ANY PROGRAMMER UPDATING SUBSEQUENT
- TOGLPAR EQU 1A1AH ;**RELEASES. ADDRESSES CORRESPOND TO
- PARITY EQU 3813H ;**'INITMOD' AND 'SETUPR'.
- S6 EQU 383CH
- ;
- INIT: EQU TRUE ;change to TRUE if you have written a
- ;routine at location INITMOD in this
- ;file to initialize your modem port.
- ;(normally such a routine is not needed
- ;as this is done using CP/M CONFIG.COM).
- ;PMMI users should use FALSE here.
- ;
- SETUP: EQU FALSE ;change to TRUE if you have written a
- ;routine at location SETUPR to change
- ;MSPEED, baud rate, etc. PMMI users
- ;should use FALSE here.
- ;
- EOSCLR: EQU FALSE ;change to TRUE if you have defined the
- ;clear to end of screen sequence for
- ;your terminal. "Clear to end of screen"
- ;is used on returning from terminal mode
- ;to keep the screen from getting jumbled
- ;if the remote can positon your cursor.
- ;
- SCRNCLR: EQU TRUE ;change to TRUE if you have defined the
- ;home cursor and clear-screen sequence
- ;for your terminal.
-
- PMMI: EQU FALSE ;change to TRUE for PMMI.
- ;
- ;
- ; THE FOLLOWING MUST BE CHANGED FOR YOUR MICRO IF YOU DON'T HAVE AN H89
- ; OR A PMMI MODEM BOARD
- ;
- IF NOT PMMI
- MODDATP: EQU 0 ;modem data port
- MODCTLP: EQU MODDATP+1 ;modem status port
- MODRCVB: EQU 2 ;bit to test for received data
- MODRCVR: EQU 2 ;modem receive ready
- MODSNDB: EQU 1 ;bit to test for ready to send
- MODSNDR: EQU 1 ;modem send ready bit
- ENDIF ;NOT PMMI
- ;
- ;
- ; THE FOLLOWING VALUES ARE FOR 'CLEAR TO END OF SCREEN'. CHANGE TO SUIT
- ; YOUR TERMINAL. THOSE SHOWN ARE FOR THE HEATH UNITS. PLACE 'EOSCLR'
- ; FALSE IF YOU DON'T KNOW YOUR VALUES.
- ;
- IF EOSCLR
- CLR1: EQU 1BH ;ESC-J is the H89 clear to end
- CLR2: EQU 'J' ;of screen sequence
- CLR3: EQU 0 ;the unused bytes MUST be 0
- CLR4: EQU 0
- ENDIF ;EOSCLR
- ;
- ; THE FOLLOWING VALUES ARE FOR 'CLEAR SCREEN, LEAVE CURSOR AT TOP LEFT'.
- ; CHANGE TO SUIT YOUR TERMINAL. THOSE SHOWN ARE FOR THE HEATH UNITS.
- ; PLACE 'SCRNCLR' FALSE IF YOU DON'T KNOW YOUR VALUES.
- ;
-
- IF SCRNCLR
- SCLR1: EQU 0CH
- SCLR2: EQU 0
- SCLR3: EQU 0 ;the unused bytes MUST be 0
- SCLR4: EQU 0
- ENDIF ;SCRNCLR
- ;
- ;
- ; CLOCK SHOULD BE CHANGED TO SUIT YOUR SYSTEM.
- ;
- ;
- ORG 100H
- ;
- DS 3 ;(for "JMP START" instruction)
- ;
- PMMIBYTE: DB PMMI ;don't change this line 103H
- CLOCK: DB 18 ;clock speed in MHz x10, 25.5 MHz maxm 104H
- ;20=2 MHh, 37=3.68 MHz, 40=4 MHz, etc.
- MSPEED: DB 1 ;0=110 1=300 2=450 3=600 4=710 5=1200 105H
- ;6=2400, 7=4800, 8=9600 default modem speed
- ;PMMI and H89 routines reset this value
- BYTDLY: DB 5 ;0=0 delay 1=10ms 5=50 ms - 9=90 ms 106H
- ;default time to send character in ter-
- ;minal mode file transfer for slow BBS.
- CRDLY: DB 5 ;0=0 delay 1=100 ms 5=500 ms - 9=900 ms 107H
- ;default time for extra wait after CRLF
- ;in terminal mode file transfer
- NOOFCOL: DB 5 ;number of DIR columns shown 108H
- SETUPTST: DB SETUP ;this line set from EQU above 109H
- SCRNTEST: DB SCRNCLR ;test for home cursor and clear screen 10AH
- ;routine at CLRSCRN, don't change this
- BAKUPBYTE: DB FALSE ;true=make .BAK file 10BH
- CKSUMDFLT: DB FALSE ;true=default to Checksum checking 10CH
- ;false=default to CRC checking
- TOGGLECRC: DB TRUE ;true=allow toggling of Checksum to CRC 10DH
- CONVBKSP: DB FALSE ;true=convert backspace to rub 10EH
- TOGGLEBK: DB TRUE ;true=allow toggling of bksp to rub 10FH
- ADDLF: DB FALSE ;true=add LF after CR 110H
- TOGGLELF: DB TRUE ;true=allow toggling of LF after CR 111H
- TRANLOGON: DB FALSE ;true=allow transmission of logon 112H
- ;write logon sequence at location LOGON
- SAVCCP: DB TRUE ;true=do not overwrite CCP 113H
- LOCONEXTCHR: DB FALSE ;true=local command if EXTCHR precedes 114H
- ;false=not local command if EXTCHR precedes
- TOGGLELOC: DB TRUE ;true=allow toggling of LOCONEXTCHR 115H
- LSTTST: DB TRUE ;true=allow toggling of printer on/off 116H
- ;in terminal mode, set to false if your
- ;printer can't keep up with the modem
- XOFFTST: DB FALSE ;true=allow testing of XOFF from remote 117H
- ;while transmitting a file in term. mode
- XONWAIT: DB FALSE ;true=wait for XON after sending CR 118H
- ;while transmitting a file in term. mode
- TOGXOFF: DB TRUE ;true=allow toggling of XOFF testing 119H
- EXITCHR: DB 'E'-40H ;^E = Exit without disconnect 11AH
- LOGCHR: DB 'O'-40H ;^O = Send logon 11BH
- LSTCHR: DB 'P'-40H ;^P = Toggle printer 11CH
- UNSAVE: DB 'R'-40H ;^R = Close input text buffer 11DH
- TRANCHR: DB 'T'-40H ;^T = Transmit file to remote 11EH
- SAVECHR: DB 'Y'-40H ;^Y = Open input text buffer 11FH
- EXTCHR: DB '^'-40H ;^^ = Send next character 120H
- ;
- ;
- ; Equates used only by PMMI routines grouped together here
- ;
- PULSERATE: DB 125 ;125 for 20pps, 250 for 10pps on PMMI 121H
- ;not used if PMMI FALSE
- CLDBOOT: DW 0000H ;currently set to warm boot with 122-123H
- ;BYE routine for PMMI, put your cold
- ;boot entry here if you have one and
- ;desire to do on BYE
- BRKCHR: DB '@'-40H ;^@ = Transmit "BREAK" with PMMI 124H
- CHGBAUD: DB 'B'-40H ;^B = Used with PMMI in terminal 125H
- ;mode to change baud rate on fly
- DISCCHR: DB 'D'-40H ;^D = PMMI Disconnect 126H
- ;
- ; (End of special PMMI routines)
- ;
- ;
- IN$MODCTLP: IN MODCTLP ! RET ;in modem control port 127H
- DB 0,0,0,0,0,0,0 ;spares if needed for non-PMMI 12AH
- OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 131H
- DB 0,0,0,0,0,0,0 ;spares if needed for non-PMMI 134H
- IN$MODDATP: IN MODDATP ! RET ;in modem data port 13BH
- DB 0,0,0,0,0,0,0 ;spares if needed for non-PMMI 13EH
- ;
- IF PMMI
- DS 12 ;not changed 145H
- IN$BAUDRP: IN BAUDRP ! RET ;in baudrate port 151H
- OUT$BAUDRP: OUT BAUDRP ! RET ;out baudrate port 154H
- OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem control port #2 157H
- OUT$MODCTLP: OUT MODCTLP ;out modem control port 15AH
- DS 9 ;line not changed 15CH
- ENDIF ;PMMI
- ;
- IF NOT PMMI
- ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 145H
- CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 148H
- ANI$MODRCVB: ANI MODRCVB ! RET ;bit to test for receive ready 14BH
- CPI$MODRCVR: CPI MODRCVR ! RET ;value of rcv. bit when ready 14EH
- DS 15 ;PMMI only calls 151H
- ;
- LOGONPTR: DW LOGON ;for user message. 160H
- JMP$INITMOD: JMP INITMOD ;go to user written routine 162H
- ENDIF ;non-PMMI
- ;
- ;
- JMP$SETUPR: ; 165H
- ;
- IF SETUP
- JMP SETUPR
- ENDIF ;SETUP
- ;
- IF NOT SETUP
- DS 3
- ENDIF ;NOT SETUP
- ;
- PARTY: DB 4EH
- PARTOG: DB 4EH+7AH
- CLREOS: CALL JMP$ILPRT ; 16AH
- ;
- IF EOSCLR
- DB CLR1,CLR2,CLR3,CLR4,0
- RET
- ENDIF ;EOSCLR
- ;
- IF NOT EOSCLR
- DB 0,0,0,0,0
- RET
- ENDIF ;NOT EOSCLR
- ;
- CLRSCRN: CALL JMP$ILPRT ; 173H
- ;
- IF SCRNCLR
- DB SCLR1,SCLR2,SCLR3,SCLR4,0
- RET
- ENDIF ;SCRNCLR
- ;
- IF NOT SCRNCLR
- DB 0,0,0,0,0
- RET
- ENDIF ;NOT SCRNCLR
- ;
- JMP$ILPRT: DS 3 ; 17CH
- JMP$INLNCOMP: DS 3 ; 17FH
- JMP$INBUF DS 3 ; 182H
- ;
- ;
- ORG INITMODADR
- ;
- IF (NOT INIT) AND (NOT PMMI)
- INITMOD: RET
- ENDIF ;NOT INIT AND NOT PMMI
- ;
- ;
- ; *** WARNING - YOUR ROUTINE AT INITMOD CANNOT EXCEED 80 BYTES. ***
- ; *** YOUR ROUTINE AT SETUPR CANNNOT EXCEED 900 BYTES. THESE ***
- ; *** OVERWRITE AREAS NORMALLY USED BY THE PMMI INITIALIZATION. ***
- ;
- ; Control and status ports
- ;
- IF INIT
- ;
- BAUDRP EQU 4
- INITMOD: MVI A,1 ;MSPEED 300 baud value
- STA MSPEED
- ;
- MVI A,36H
- OUT BAUDRP
- MVI A,0AAH
- OUT MODCTLP
- MVI A,40H
- OUT MODCTLP
- LDA PARTY
- OUT MODCTLP
- MVI A,27H
- OUT MODCTLP
- RET
- ;
- ORG TOGLPAR
- CALL INITMOD
- ;
- ENDIF ;INIT
- ;
- ORG SETUPRADR
- RET
- ;
- ; You can put in a message at this location which can be called up with
- ; CTL-O if TRANLOGON has been set TRUE. You can put in several lines if
- ; desired. End with a 0. This area overwrite a PMMI dialing routine.
- ;
- IF NOT PMMI
- LOGON: DB 0,0
- ENDIF ;not PMMI
- ;
- ORG PARITY
- NOP
- NOP
- NOP
- DS 10
- JMP S6
- END
-