; 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 ; -----------