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- ; MXO-LB3.ASM- AMPRO "Little Board" overlay for MEX10. 04/04/85
- ;
- TITLE 'MXO-LB3R.ASM Customized Ampro MEX overlay'
- PAGE 45
- ;
- ;
- ; 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 AMPRO "Little Board" computer to the modem program.
- ;
- ; Edit this file for your preferences then follow the "TO USE:" example
- ; shown below.
- ;
- ; Use the "SET" command to change the baudrate when desired. It starts
- ; out at 1200 baud when the program is first called up.
- ;
- ; TO USE: First edit this file filling in answers for your own
- ; equipment. Then assemble with ASM.COM or equivalent
- ; assembler. Then use MLOAD to overlay the the results
- ; of this program to the original .COM file.
- ;
- ; = = = = = = = = = = = = = = = = = =
- ; 08/23/85 - Changed incorrect Jump to
- ; GOODBYE routine so modem won't
- ; disconnect on CPM,EXIT,or SYSTEM - Rick Swenton
- ; 08/17/85 - Added code to support 450 baud - Rick Swenton
- ; 04/04/84 - Added DISCV to allow modem disconnect on ESC N
- ; (present GOODBY routine is only called when exiting
- ; MEX to CPM) -Norman Beeler
- ; 03/29/85 - Added 2400 and 4800 baud capability -Norman Beeler
- ; 09/14/84 - Adapt for AMPRO "Little Board" - Charlie Sanborn
- ; 05/28/84 - MEXify labels - Biff Bueffel
- ; 05/23/84 - Corrected clear-screen problem - Biff Bueffel
- ; 05/22/84 - Rewritten for MEX10 - Biff Bueffel
- ; 11/11/83 - Renamed to M7KP-1.ASM, no changes - Irv Hoff
- ; 07/27/83 - Renamed to work with MDM712 - Irv Hoff
- ; 07/01/83 - Revised to work with MDM711 - Irv Hoff
- ; 06/22/83 - Revised to work with MDM710 - Irv Hoff
- ; 05/25/83 - Revised to work with MDM709 - Irv Hoff
- ; 04/15/83 - Revised to work with MDM708 - Irv Hoff
- ; 04/11/83 - Updated to work with MDM707 - Irv Hoff
- ; 04/04/83 - Updated to work with MDM706 - Irv Hoff
- ; 02/27/83 - Updated to work with MDM705 - Irv Hoff
- ; 02/17/83 - Modified MDM703CF for Kaypro II
- ; computers with external modems - 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 88H ;Ampro "B" serial output port
- MODCT1: EQU PORT+4 ;Modem control port
- MODDAT: EQU PORT ;Modem data port
- MODCT2: EQU PORT+4 ;Modem control port
- MDRCVB: EQU 01H ;Your bit to test for receive
- MDRCVR: EQU 01H ;Your value when receive ready
- MDSNDB: EQU 04H ;Your bit to test for send
- MDSNDR: EQU 04H ;Your value when send ready
- ;
- ; MEX service processor stuff
- ;
- MEX EQU 0D00H ;address of the service processor
- 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
- ;
- PRINT EQU 9 ;MEX/BDOS print-string function call
- ;
- ORG 100H
- ;
- ;
- ; Change the clock speed as needed for your system.
- ;
- DS 3 ;(for "JMP START" instruction)
- ;
- PMODEM: DB NO ;yes=PMMI S-100 Modem 103H
- SMODEM: DB NO ;yes=HAYES Smartmodem, no=non-PMMI 104H
- TPULSE: DB 'T' ;T=touch, P=pulse (Smartmodem-only) 105H
- CLOCK: DB 40 ;clock speed in MHz x10, 25.5 MHz max. 106H
- ;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 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
- COLUMS: DB 5 ;number of DIR columns shown 10AH
- SETFLG: DB YES ;yes=user-added Setup routine 10BH
- SCRTST: DB YES ;Cursor control routine 10CH
- DB YES ;yes=resend a record after any non-ACK 10DH
- ;no=resend a record after a valid NAK
- BAKFLG: DB NO ;yes=change any file same name to .BAK 10EH
- CRCDFL: DB YES ;yes=default to CRC checking 10FH
- TOGCRC: DB YES ;yes=allow toggling of CRC to Checksum 110H
- CVTBS: DB NO ;yes=convert backspace to rub 111H
- TOGLBK: DB YES ;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)
- TOGLF: DB YES ;yes=allow toggling of LF after CR 114H
- DB NO ;yes=allow transmission of logon 115H
- ;write logon sequence at location LOGON
- SAVCCP: DB YES ;yes=do not overwrite CCP 116H
- DB NO ;yes=local command if EXTCHR precedes 117H
- ;no=external command if EXTCHR precedes
- DB YES ;yes=allow toggling of LOCONEXTCHR 118H
- LSTTST: DB YES ;yes=printer available on printer port 119H
- XOFTST: DB NO ;yes=chcks for XOFF from remote while 11AH
- ;sending a file in terminal mode
- XONWT: DB NO ;yes=wait for XON after CR while 11BH
- ;sending a file in terminal mode
- TOGXOF: DB YES ;yes=allow toggling of XOFF checking 11CH
- IGNCTL: DB YES ;yes=CTL-chars above ^M not displayed 11DH
- EXTRA1: DB 0 ;for future expansion 11EH
- EXITCHR: DB 'E'-40H ;^E = Exit to main menu 11FH
- BRKCHR: DB '@'-40H ;^@ = Send a 300 ms. break tone 120H
- NOCONN: DB 'N'-40H ;^N = Disconnect from the phone line 121H
- LOGCHR: DB 'L'-40H ;^L = Send logon 122H
- LSTCHR: DB 'P'-40H ;^P = Toggle printer 123H
- UNSAVE: DB 'R'-40H ;^R = Close input text buffer 124H
- TRNCHR: DB 'T'-40H ;^T = Transmit file to remote 125H
- SAVCHR: DB 'Y'-40H ;^Y = Open input text buffer 126H
- EXTCHR: DB '^'-40H ;^^ = Send next character 127H
- ;
- ;
- DS 2 ; 128H
- ;
- INCTL1: MVI A,10H ;channel 0, reset interrupts. 12AH
- OUT MODCT1
- IN MODCT1 ;get the status bits
- RET
- DS 3
- ;
- OTDATA: OUT MODDAT ! RET ;out modem data port 134H
- DS 7
- INPORT: IN MODDAT ! RET ;in modem data port 13EH
- DS 7
- MASKR: ANI MDRCVB ! RET ;bit to test for receive ready 148H
- TESTR: CPI MDRCVR ! RET ;value of receive bit when rdy 14BH
- MASKS: ANI MDSNDB ! RET ;bit to test for send ready 14EH
- TESTS: CPI MDSNDR ! RET ;value of send bit when ready 151H
- DS 6
- ;
- OUTCTL1: OUT MODCT1 ! RET ;out modem control port 15AH
- OUTCTL2: OUT MODCT2 ! RET ;out modem status port 15DH
- ;
- ;
- DS 2 ; 160H
- DS 3 ; 162H
- DISCV: JMP GOODBY ;disconnect on ^N
- GOODBV: RET ! NOP ! NOP ;return to CP/M 168H
- INMODV: JMP NITMOD ;go to user written routine 16BH
- NEWBDV: JMP NEWBAUD ;Set new baudrate 16EH
- RET ! NOP ! NOP ;(by-passes PMMI routine) 171H
- RET ! NOP ! NOP ;(by-passes PMMI routine) 174H
- SETUPV: JMP SETCMD ; 177H
- DS 3 ; 17AH
- VERSNV: JMP SYSVER ; 17DH
- BREAKV: JMP SBREAK ; 180H
- ;
- ;
- ; Do not change the following six lines.
- ;
- ILPRTV: DS 3 ; 183H
- INBUFV: DS 3 ; 186H
- ILCMPV: DS 3 ; 189H
- INMDMV: DS 3 ; 18CH
- DS 3 ; 18FH
- TIMERV: 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: LXI D,EOSMSG
- MVI C,PRINT
- CALL MEX
- RET
- ;
- CLS: LXI D,CLSMSG
- MVI C,PRINT
- CALL MEX
- RET
- ;
- ;
- SYSVER: MVI C,ILP ;
- CALL MEX
- DB CR,LF
- DB 'Version for AMPRO using Z80 DART on port 088H',CR,LF
- DB 'Overlay Version 2 08/23/85 by Rick Swenton',CR,LF
- DB CR,LF,LF,LF,0
- RET
- ;
- ;
- ;
- ; This routine allows a 300 ms. break tone to be sent to reset some
- ; time-share computers.
- ;
- SBREAK: MVI A,5
- OUT MODCT1
- MVI A,7AH ;SEND A BREAK TONE
- JMP GOODBY1
- ;.....
- ;
- ;
- ; 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.
- ;
- GOODBY: MVI A,5
- OUT MODCT1 ;SEND TO THE STATUS PORT
- MVI A,78H ;TURN OFF RTS
- ;
- GOODBY1: OUT MODCT1
- MVI B,3 ;DELAY 300 MS.
- MVI C,TIMER
- CALL MEX
- MVI A,5
- OUT MODCT1
- MVI A,6AH ;RESTORE TO NORMAL, 8 BITS, RTS ON, ETC.
- OUT MODCT1
- RET
- ;.....
- ;
- ;
- ; AMPRO initialization -- set up Z80-DART & CTC Channel 01 (clock source)
- ;
- ;
- NITMOD: MVI A,00H ;SELECT REG.
- OUT MODCT1
- MVI A,18H ;THROW OUT OF MODE
- OUT MODCT1
- MVI A,04H ;SELECT REG.
- OUT MODCT1
- MVI A,44H ;SET ASCII PARAMETERS
- OUT MODCT1
- MVI A,03H ;SELECT REG.
- OUT MODCT1
- MVI A,0C1H ;ENABLE RECEIVE
- OUT MODCT1
- MVI A,05H ;SELECT REG.
- OUT MODCT1
- MVI A,6AH ;ENABLE SEND, DTR, RTS
- OUT MODCT1
- ;
- NITMOD1: MVI A,5 ;SET FILE TRANSFER TIME
- STA MSPEED
- MVI A,47H
- OUT 50H ;SEND TO 'CTC' TIMER
-
- NITMOD2: MVI A,68H ;INITIALIZE TO 1200 BAUD
- OUT 50H ;SEND TO 'CTC' TIMER
- RET
- ;.....
- ;
- ;
- ; Sets the modem speed via the SET command.
- ;
- ;
- SETCMD: 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 addrs 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, 450, 600, 1200, 2400, 4800 or 9600 allowed with SET'
- DB CR,LF,0
- RET
- ;
- CMDTBL: DB '30','0'+80H
- DW OK300
- DB '45','0'+80H
- DW OK450
- DB '60','0'+80H
- DW OK600
- DB '120','0'+80H
- DW OK1200
- DB '240','0'+80H
- DW OK2400
- DB '480','0'+80H
- DW OK4800
- DB '960','0'+80H
- DW OK9600
- 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,84H ;Load DART Reg 4 with x32
- STA NITMOD+13
- MVI A,1
- LHLD BD300
- JMP LOADBD
- ;
- OK450 MVI A,84H ;Load DART Reg 4 with x32
- STA NITMOD+13
- MVI A,2
- LHLD BD450
- JMP LOADBD
- ;
- OK600 MVI A,44H ;Load DART Reg 4 with x16
- STA NITMOD+13
- MVI A,3
- LHLD BD600
- JMP LOADBD
- ;
- OK1200 MVI A,44H ;Same as for 600
- STA NITMOD+13
- MVI A,5
- LHLD BD1200
- JMP LOADBD
- ;
- OK2400 MVI A,44H
- STA NITMOD+13
- LHLD BD2400
- JMP LOADBD
- ;
- OK4800 MVI A,44H
- STA NITMOD+13
- LHLD BD4800
- JMP LOADBD
- ;
- OK9600 MVI A,44H ;As above
- STA NITMOD+13
- MVI A,8
- LHLD BD9600
- ;
- LOADBD: STA NITMOD1+1 ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE
- MOV A,L ;GET BAUDRATE BYTE
- STA NITMOD2+1 ;SEND TO 'CTC' FOR NEW BAUDRATE
- JMP NITMOD ;REINITIALIZE TO NEW BAUDRATE, THEN DONE
- ;
- ;
- NEWBAUD: CPI 1
- JZ OK300
- CPI 2
- JZ OK450
- CPI 3
- JZ OK600
- CPI 5
- JZ OK1200
- CPI 6
- JZ OK2400
- CPI 7
- JZ OK4800
- CPI 8
- JZ OK9600
- RET
- ;
- ;
- ; TABLE OF BAUDRATE PARAMETERS
- ;
- BD300: DW 00D0H ;62400/300 (x32)
- BD450: DW 008AH ;62400/450 (x32)
- BD600: DW 00D0H ;62400/600 (x32)
- BD1200: DW 0068H ;124800/1200 (x16)
- BD2400 DW 0034H ;124800/2400 (x16)
- BD4800 DW 001AH ;124800/4800 (x16)
- BD9600: DW 000DH ;124800/9600 (x16)
- ;
- BAUDBUF: DB 10,0
- DS 10
- ;
- ; NOTE: The following two lines are terminal dependent, and are
- ; currently set for a VT-52. Change for your terminal.
- ;
- EOSMSG: DB 01BH,4AH,'$'
- CLSMSG: DB 01BH,48H,1BH,4AH,'$'
- ;-----------------------------------------------------------------------
- ;
- ;
- ; NOTE: MUST TERMINATE PRIOR TO 0B00 (with Smartmodem)
- ;
- ;
- END
- ;
-
- -----------