/       MULTOS-8 TALK PROGRAM
/
/       Gene A. Ware
/       Electrical Engineering Department
/       Utah State University
/       Logan  Utah  84322
/
/
/       This program transmitts a message to another
/       user on the MULTOS-8 time share system.
/       If time share is not in operation, no operation
/       occurrs.
/
/       MODIFIED  1-JAN-82     BY   F. BRANDT
/                                       SCRL- GALLAUDET COLLEGE
/
/
/     
/     
TALK=   6124      
TSS=    6111      
SPR=    6125      

        *200      
/     
/CONTINUE ONLY IF TIME SHARING      
/     
        CLA 
        TSS 
        JMP I K7600     
/     
/GET THIS TERMINAL NUMBER     
/     
        CLA 
        SPR 
        TERMS1    
        TAD I (TERMS1   /GET SOURCE TERMINAL NUMBER   
        TAD K0060               /CONVERT TO ASCII     
        DCA I (TERMS    /PUT IN OUTPUT BUFFER   
/     
/GET THE DESTINATION TERMINAL NUMBER      
/     
        CLA 
        TAD KN          /PRINT A '#'      
        TLS 
        JMS TTYI        /GET AN INPUT CHARACTER 
        TLS             /ECHO IT    
        AND K0007       /MAX OF 6 TERMINALS IN MULTOS 
        CLL RTR   
        RTR 
        DCA TERMD 
      
/     
/TALK STRING INPUT      
/     
INPUT,  TAD KCR         /CR-LF ON SOURCE TERMINAL     
        TLS 
        CLA 
        TAD KLF   
        TLS 
        CLA 
        TAD KA          /PRINT A '*'      
        TLS 
        CLA 
        TAD K7600       /SET COUNTER AND POINTER      
        DCA CNTR  
        TAD K0410       /STORE CHARS AFTER HEADER     
        DCA PNTR  
INLOOP, JMS TTYI        /GET A CHARACTER  
        DCA I PNTR      /STORE IT   
        TAD I PNTR      /GET IT AGAIN     
        CIA 
        TAD K0177       /IS IT A RUBOUT?  
        SNA CLA   
        JMP RUBOUT      /YES  
        TAD I PNTR      /GET CHARACTER AGAIN    
        TLS             /ECHO IT    
        CIA 
        TAD KCR         /IS IT A CARRIAGE RETURN?     
        SNA CLA   
        JMP OUT         /YES  
        ISZ PNTR  
        ISZ CNTR  
        JMP INLOOP      
      
/     
/OUTPUT LOOP      
/     
OUT,    TAD PNTR        /RESET STRING COUNTER   
        AND K0177 
        SNA 
        JMP I K7600     
        CIA 
        DCA CNTR  
        TAD K0400       /RESET STRING POINTER   
        DCA PNTR  
OUTLP,  TAD I PNTR      
        JMS TALKS 
        ISZ PNTR  
        ISZ CNTR  
        JMP OUTLP 
        JMS CRLF  
        CLA 
        JMP INPUT 
      
/     
/SUBROUTINES      
/     
/RUBOUT INPUT CHARACTER 
/     
RUBOUT, CLA 
        TAD KBS   
        TLS 
        CLA 
        TAD KBLK  
        TLS 
        CLA 
        TAD KBS   
        TLS 
        STA 
        TAD PNTR  
        DCA PNTR  
        STA 
        TAD CNTR  
        DCA CNTR  
        JMP INLOOP      
/     
/CARRIAGE RETURN LINE FEED SUBROUTINE     
/     
CRLF,   0   
        CLA 
        TAD KCR   
        JMS TALKS 
        TAD KLF   
        JMS TALKS 
        JMP I CRLF      
/     
/TALK SUBROUTINE  
/     
TALKS,  0   
        TAD TERMD 
        TALK      
        JMP .-1   
        CLA 
        JMP I TALKS     
/     
/SOURCE TERMINAL INPUT SUBROUTINE   
/     
TTYI,   0   
        KRB             /GET THE CHARACTER      
        AND K0177       /MASK IT    
        TAD M3          /CONTROL C? 
        SNA 
        JMP I K7600     
        TAD O3          /RESET      
        JMP I TTYI      
      
/     
/PARAMETERS AND CONSTANTS     
/     
K7600,  7600      
K0060,  0060      
K0400,  0400      
K0410,  TERMS1    
K0007,  0007      
K0177,  0177      
KCR,    015 
KLF,    012 
KN,     043 
KA,     052 
KBS,    010 
KBLK,   040 
CNTR,   0   
PNTR,   0   
TERMD,  0   
M3,     -3  
O3,     3   
      
/BUFFER PAGE HEADER     
/     
      
      
        *400      
        07      /BELL   
        212     /LF     
        212     /LF     
        "*  
        "*  
TERMS,  40      /SOURCE TERMINAL NUMBER   
        "*  
        "*  
        40      /SPACE  
        40  
        EBUF=.&177      
        ENDBUF=177-EBUF 
      
TERMS1, ZBLOCK ENDBUF   
/       ZBLOCK 167      
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