; MXO-DAV.ASM -- Davidge DSB-4/6 Single Board Computer overlay file
; for MEX10. 05/21/84
;
; 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.
; This file adapts the printer port on the Davidge to the modem
; program.
;
; Edit this file for your preferences then follow the Installation
; instructions provided with MEX.
;
; Use the "SET" command to change the baudrate when desired. It starts
; out at 1200 baud when the program is first called up.
;
; = = = = = = = = = = = = = = = = = =
;
; 05/21/84 - Revised to work with MEX10 - Bob Robesky
; 03/11/84 - Revised to work wth Davidge - Bob Robesky
; 07/01/83 - Revised to work with MDM711 - Irv Hoff
; 06/22/83 - Revised to work with MDM711 - Irv Hoff
; 05/27/83 - Updated to work with MDM709 - Irv Hoff
; 05/15/83 - Revised to work with MDM708 - Irv Hoff
; 04/27/83 - Revised to work with TV802 - Irv Hoff
; 02/17/83 - Modified MDM703CF for Datapoint
; 1560 computers using an external
; modem - Irv Hoff
;
; = = = = = = = = = = = = = = = = = =
;
BELL: EQU 07H ;bell
CR: EQU 0DH ;carriage return
ESC: EQU 1BH ;escape
LF: EQU 0AH ;linefeed
;
YES: EQU 0FFH
NO: EQU 0
;
;
PORT: EQU 02H ;Davidge "b1" data port
;
BAUDRP: EQU 0AH ;CTC port for baud rate
MODCTL1: EQU PORT+1 ;Modem control port
MODCTL2: EQU PORT+1 ;Modem control port
MODDATP: EQU PORT ;Modem data port
MODDCDB: EQU 4 ;carrier detect bit
MODDCDA: EQU 0 ;value when active
MODRCVB: EQU 1 ;bit to test for receive ready
MODRCVR: EQU 1 ;value when ready
MODSNDB: EQU 4 ;bit to test for send ready
MODSNDR: EQU 4 ;value when ready
;
; MEX service processor stuff
;
INMDM EQU 255 ;get char from port to A, CY=no more in 100 ms
TIMER EQU 254 ;delay 100ms * reg B
TMDINP EQU 253 ;B=# secs to wait for char, cy=no char
CHEKCC EQU 252 ;check for ^C from KBD, Z=present
SNDRDY EQU 251 ;test for modem-send ready
RCVRDY EQU 250 ;test for modem-receive ready
SNDCHR EQU 249 ;send a character to the modem (after sndrdy)
RCVCHR EQU 248 ;recv a char from modem (after rcvrdy)
LOOKUP EQU 247 ;table search: see CMDTBL comments for info
PARSFN EQU 246 ;parse filename from input stream
BDPARS EQU 245 ;parse baud-rate from input stream
SBLANK EQU 244 ;scan input stream to next non-blank
EVALA EQU 243 ;evaluate numeric from input stream
LKAHED EQU 242 ;get nxt char w/o removing from input
GNC EQU 241 ;get char from input, cy=1 if none
ILP EQU 240 ;inline print
DECOUT EQU 239 ;decimal output
PRBAUD EQU 238 ;print baud rate
;
ORG 100H
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
SMARTMODEM: DB YES ;yes=HAYES Smartmodem, no=non-PMMI 104H
TOUCHPULSE: DB 'P' ;T=touch, P=pulse (Smartmodem-only) 105H
CLOCK: DB 60 ;clock speed in MHz x10, 25.5 MHz max. 106H
;20=2 MHh, 37=3.68 MHz, 40=4 MHz, etc.
MSPEED: DB 5 ;0=110 1=300 2=450 3=600 4=710 5=1200 107H
;6=2400 7=4800 8=9600 9=19200 default
BYTDLY: DB 5 ;0=0 delay 1=10ms 5=50 ms - 9=90 ms 108H
;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 109H
;default time for extra wait after CRLF
;in terminal mode file transfer
NOOFCOL: DB 5 ;number of DIR columns shown 10AH
SETUPTST: DB YES ;yes=user-added Setup routine 10BH
SCRNTEST: DB YES ;Cursor control routine 10CH
ACKNAK: DB YES ;yes=resend a record after any non-ACK 10DH
;no=resend a record after a valid NAK
BAKUPBYTE: DB NO ;yes=change any file same name to .BAK 10EH
CRCDFLT: DB YES ;yes=default to CRC checking 10FH
TOGGLECRC: DB YES ;yes=allow toggling of CRC to Checksum 110H
CONVBKSP: DB NO ;yes=convert backspace to rub 111H
TOGGLEBK: DB NO ;yes=allow toggling of bksp to rub 112H
ADDLF: DB NO ;no=no LF after CR to send file in 113H
;terminal mode (added by remote echo)
TOGGLELF: DB YES ;yes=allow toggling of LF after CR 114H
TRANLOGON: DB YES ;yes=allow transmission of logon 115H
;write logon sequence at location LOGON
SAVCCP: DB YES ;yes=do not overwrite CCP 116H
LOCONEXTCHR: DB NO ;yes=local command if EXTCHR precedes 117H
;no=external command if EXTCHR precedes
TOGGLELOC: DB YES ;yes=allow toggling of LOCONEXTCHR 118H
LSTTST: DB YES ;yes=printer available on printer port 119H
XOFFTST: DB NO ;yes=check for XOFF from remote while 11AH
;sending a file in terminal mode
XONWAIT: DB NO ;yes=wait for XON after CR while 11BH
;sending a file in terminal mode
TOGXOFF: DB YES ;yes=allow toggling of XOFF checking 11CH
IGNORCTL: DB YES ;yes=CTL-chars above ^M not displayed 11DH
EXTRA1: DB 0 ;for future expansion 11EH
EXTRA2: DB 0 ;for future expansion 11FH
BRKCHR: DB '@'-40H ;^@ = Send a 300 ms. break tone 120H
NOCONNCT: DB 'N'-40H ;^N = Disconnect from the phone line 121H
LOGCHR: DB 'O'-40H ;^O = Send logon 122H
LSTCHR: DB 'P'-40H ;^P = Toggle printer 123H
UNSAVE: DB 'R'-40H ;^R = Close input text buffer 124H
TRANCHR: DB 'T'-40H ;^T = Transmit file to remote 125H
SAVECHR: DB 'Y'-40H ;^Y = Open input text buffer 126H
EXTCHR: DB '^'-40H ;^^ = Send next character 127H
;
;
DS 2 ; 128H
;
IN$MODCTL1: IN MODCTL1 ! RET ;in modem control port 12AH
DS 7
OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 134H
DS 7
IN$MODDATP: IN MODDATP ! RET ;in modem data port 13EH
DS 7
;
ANI$MODRCVB: ANI MODRCVB ! RET ;bit to test for receive ready 148H
CPI$MODRCVR: CPI MODRCVR ! RET ;value of rec. bit when ready 14BH
ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 14EH
CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 6 ; 154H
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #2 15AH
OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem control port #1 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6
JMP$GOODBYE: JMP GOODBYE ; 168H
JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH
RET ! NOP ! NOP ;(by-passes PMMI routine) 16EH
RET ! NOP ! NOP ;(by-passes PMMI routine) 171H
RET ! NOP ! NOP ;(by-passes PMMI routine) 174H
JMP$SETUPR: JMP SETUPR ; 177H
JMP$SPCLMENU: JMP SPCLMENU ; 17AH
JMP$SYSVER: JMP SYSVER ; 17DH
JMP$BREAK: JMP SENDBRK ; 180H
;
;
; Do not change the following six lines
;
JMP$ILPRT: DS 3 ; 183H
JMP$INBUF: DS 3 ; 186H
JMP$INLNCOMP: DS 3 ; 189H
JMP$INMODEM: DS 3 ; 18CH
JMP$NXTSCRN: DS 3 ; 18FH
JMP$TIMER: DS 3 ; 192H
;
;
; Clear sequences -- CLREOS is clear to end of screen, CLRSCRN is clear
; entire screen. Last entry must be 0. Any other 0's act as NOP's.
;
CLREOS: MVI C,ILP
CALL MEX
DB ESC,79H,0,0,0 ;ESC y - clear to end of screen 198H
RET ; 19DH
;
CLRSCRN: MVI C,ILP
CALL MEX
DB ESC,2AH,0,0,0 ;ESC * clear CRT, home cursor 11AH
RET ; 1A6H
;
;
SYSVER: MVI C,ILP
CALL MEX
DB 'Version for Davidge DSB-4/6'
DB CR,LF,0
RET
;.....
;
;
;-----------------------------------------------------------------------
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by 0400H (601 bytes
; available after start of SYSVER) if using the Hayes Smartmodem
; or by address 0C00H (2659 bytes) otherwise.
;
;-----------------------------------------------------------------------
;
; You can put in a message at this location which can be called up with
; CTL-O if TRANLOGON has been set YES. You can put in several lines if
; desired. End with a 0.
;
;
LOGON: DB 'Greetings from the Machine',CR,LF,0
;
;=======================================================================
;
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-share computers.
;
SENDBRK: MVI A,5
OUT MODCTL1
MVI A,0F8H ;SEND A BREAK TONE
JMP GOODBYE1
;.....
;
;
; This routine sends a 300 ms. break tone and sets DTR low for the same
; length of time to disconnect some modems such as the Bell 212A, etc.
;
GOODBYE: MVI A,5
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,068H ;TURN OFF DTR, SEND BREAK
;
GOODBYE1: OUT MODCTL1
MVI B,3 ;WAIT 300 MS.
CALL JMP$TIMER
MVI A,5
OUT MODCTL1
MVI A,0E8H ;RESTORE TO NORMAL, 8 BITS, DTR ON, ETC.
OUT MODCTL1
RET
;.....
;
;
; Davidge baud rate change. Sets CTC at port 0AH for baudrate
; in/out.
;
;
INITMOD: MVI A,0 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,18H ;RESET THE Z8SIO CHIP
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,4 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,44H ;16X, 1-STOP, NO PARITY
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,3 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,0C1H ;ENABLE RECEIVE SECTION
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,5 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,0EAH ;DTR, RTS, 8-BITS, ENABLE SEND SECTION
OUT MODCTL1 ;SEND TO THE STATUS PORT
;
INITMOD1: MVI A,5 ;DEFAULT TRANSFER TIME TO 1200 BAUD
STA MSPEED
MVI A,47H
OUT BAUDRP
;
INITMOD2: MVI A,60H ;DEFAULT TO 1200 BAUD
OUT BAUDRP
RET
;.....
SETUPR: MVI C,SBLANK ;ANY ARGUMENTS?
CALL MEX
JC TELL ;IF NOT, GO DISPLAY BAUD
LXI D,CMDTBL
MVI C,LOOKUP
CALL MEX ;PARSE ARGUMENT
PUSH H ;SAVE ANY PARSED ARGUMENT ADRS ON STACK
RNC ;IF WE HAVE ONE, RETURN TO IT
POP H ;OOPS, INPUT NOT FOUND IN TABLE
MVI C,ILP
CALL MEX ;TELL USER INPUT NOT VALID
DB CR,LF,'Only 300 or 1200 allowed on SET command',CR,LF,0
RET
;
CMDTBL: DB '30','0'+80H
DW OK300
DB '120','0'+80H
DW OK1200
DB 0
;
TELL: MVI C,ILP
CALL MEX ;PRINT CURRENT BAUD RATE
DB CR,LF,'Baud rate is now: ',0
LDA MSPEED
MVI C,PRBAUD
CALL MEX
RET
;
OK300: MVI A,1 ;MSPEED 300 BAUD VALUE
LHLD BD300 ;GET 300 BAUD PARAMETERS IN 'HL'
JMP LOADBD ;GO LOAD THEM
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
LOADBD: STA INITMOD1+1 ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE
MOV A,L ;GET BAUDRATE BYTE
STA INITMOD2+1 ;STORE IN INITMOD
JMP INITMOD1 ;REINITIALIZE TO NEW BAUDRATE, THEN DONE
;
;
; TABLE OF BAUDRATE PARAMETERS
;
BD300: DW 0000H ;38400/300 CONVERTED TO HEX VALUE
BD1200: DW 0060H ;38400/1200 CONVERTED TO HEX VALUE
;
BAUDBUF: DB 10,0
DS 10
;
; (END OF INITMOD AND SETUP ROUTINES)
;-----------------------------------------------------------------------
;
; These routines can be used for your equipment, be sure to end with RET
; If using the Hayes Smartmodem this is unavailable without a special
; address change.
;
SPCLMENU: RET
;
;-----------------------------------------------------------------------
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;
; +++ end of MEX Davidge overlay
;----------------------------------------------------------------------
;
; +++ THIS IS THE MXPAT10.ASM FILE
;
; This is the patch file for MEX 1.0 -- you may edit this file to change
; various initial variables. Assemble with ASM or MAC, then use MLOAD
; to patch the changes into MEX:
;
; ASM MEXPAT10.AAZ ;assemble the edited file
; MLOAD NEWMEX.COM=MEX.OBJ,MEXPAT10 ;patch MEX
;
; You may also pull this file into your modem overlay (be sure you in-
; clude the ORG statement below).
;
; The order of the patch variables supported here will not change from
; version to version (i.e., new items will be added on to the end).
;
;
ORG 0D00H ;location of patch variables
;
LF EQU 10 ;define ASCII linefeed code
;
;
; The following line defines the MEX service call entry point, and
; is not meant to be changed by the user
;
MEX: DS 3 ;MEX service call processor
DS 3 ;reserved
DS 1 ;reserved
;
; The following line contains the initial free-memory pointer for
; MEX. Sophisticated modem overlays requiring additional space may change
; this pointer (ie, move it higher), and thus "protect" an area of RAM.
;
MEMRY: DS 2 ;first free memory pointer
;
; Following are the lowest-level vectors for console and list I/O used
; by MEX. These normally point to routines that save the registers and
; vector to the appropriate BIOS routines. Complex applications may
; need to intercept (or even replace) these routines. If you do this,
; be sure to preserve DE, HL and BC.
;
STSVEC: DS 2 ;console status vector
INVEC: DS 2 ;console input vector
OUTVEC: DS 2 ;console output vector
LVEC: DS 2 ;list output vector
LSTVEC: DS 2 ;list status vector
;
; The following line defines the location of the default MEX prompt.
; If you'd like to provide your own initial prompt, add a DW statement
; pointing to a prompt buffer structured as follows:
;
; DB <max size of buffer>
; DB <length of actual prompt>
; DB <prompt string>
;
; <maxsize> and <length> may be equal (especially if you disable the
; ID command by setting CHGPMT, below to 0); the ID command will, if
; left enabled, be limited to the <max size> value.
;
PROMPT: DS 2 ;prompt location
DS 1 ;reserved
TYPLIN: DB 22 ;for TYPE command: # lines/screen
PAUSFL: DB 1 ;for TYPE cmd: 1=pause 0=no pause
SEPCHR: DB ';' ;multiple command-line separator
;
; following five for SENDOUT command
;
SOWAIT: DB 4 ;# seconds waiting for a sendout echo
SOREPL: DB 8 ;# seconds waiting for initial reply
SOTRIG: DB '>' ;sendout trigger char from remote
CANCHR: DB 'U'-64 ;sendout char to cancel line to remote
SORTRY: DB 6 ;sendout # retries
;
;
HEXFLG: DB 0 ;hex/decimal mode
ESCCHR: DB 0AH ;terminal mode escape char (0AH = linefeed)
NOBELL: DB 0 ;set to 1 to disable bell
;
; Buffer variables. See BUFFERS.DOC for setup information
;
PSIZE: DB 2 ;default=2k
ASIZE: DB 255 ;"big" capture buffer
XSIZE: DB 16 ;16K transfer buffer
NSIZE: DB 1 ;1k for 85 batch files
PRELEN: DB 40 ;maximum length of PREFIX string
SUFLEN: DB 40 ;maximum length of SUFFIX string
;
; Misc. stuff
;
CDOSFL: DB 0 ;non-zero for CDOS
WTECHO: DB 0 ;non-zero sets "wait-for-echo"
KYSIZE: DW 400 ;size of keystring area, in bytes
CISFLG: DB 1 ;non-zero allows CIS file transfers
CISOK: DB 1 ;non zero allows STAT CIS ON or OFF
CHGPMT: DB 1 ;non-zero allows ID (prompt chg) command
ERRID: DB 1 ;non-zero prints ID msg in err msgs
;
; by setting the following DB to 0, you can disable the HELP
; command, freeing up space used by the help file index.
;
HELPOK: DB 1 ;non-zero allows HELP command
MEXDU: DB 0 ;user \/ alternate area for READ,LOAD,INI.MEX
DB 0 ;drive/\ & HELP.MEX (if SEARCH <>0)
DEBUG: DB 0 ;debugging in term-mode if non-zero
EXCLSY: DB 1 ;non-0 excludes $SYS from batchsend, dir
INIMEX: DB 1 ;non-zero runs INI.MEX (if present) at startup
RTIMER: DB 1 ;receiver wait: # seconds [Plouff patch]
PQSIZE: DW 150 ;size of the modem-port queue
PHSIZE: DB 30 ;phone library size (# entries)
SILENT: DB 0FFH ;0=silence multi-line & READ cmd echo
ALERT: DB 255 ;alert-bell count on CALL complete
EXTEND: DB 0 ;non-zero: unknown commands goto READ processor
SPLIT: DB 0 ;non-zero: splits phonelib printout, shows baud
SEARCH: DB 0 ;search mode 0,1,2,3
;
; Following is the GLOBAL secondary options table. To
; set an option to global, change its ASCII character to a 0.
;
RESTT: DB 'BDLQRSTVX'
;
;
END
;
;----- End of MEXPAT10 area
;lib printout, shows baud
