* PROGRAM: BANNER
* AUTHOR: RICHARD CONN
* VERSION: 1.0
* DATE: 22 FEB 82
* DERIVATION: From Public Domain Program, Author Unknown
* PREVIOUS VERSIONS: None
VERS EQU 10 ;VERSION NUMBER
*********************************
* *
* B A N N E R P R I N T *
* *
*********************************
*
* BANNER is a program which prints large (5x7) block letters
* on the LST: Device in response to user input from the
* keyboard. BANNER is invoked in several ways:
* BANNER <text>
* -- <TEXT> is printed on the LST: device; ex:
* BANNER HELLO
* BANNER /T
* -- Multi-Text Line Input Mode; the user may
* type several successive lines to be printed;
* the user exits by typing ^C
* BANNER /?
* -- Built-In HELP Information is printed
*
ORG 100H
START:
LXI H,0 ;SAVE STACK PTR
DAD SP ;HL=OLD SP
SHLD STACK
LXI SP,STACK ;NEW STACK
CALL PMSG
DB 'BANNER Version '
DB VERS/10+'0','.',(VERS MOD 10)+'0'
DB CR,LF
DB 0
LDA FCB+1 ;CHECK FOR OPTION
CPI '/' ;OPTION CAUGHT?
JNZ ONE$LINE ;IF NO OPTION, PROCESS ONLY 1 LINE
LDA FCB+2 ;CHECK FOR TEXT INPUT
CPI TEXT ;TEXT CHAR?
JZ BTEXT ;INPUT TEXT LINES
;
; Print BANNER Help Message
;
HELP:
CALL PMSG ;PRINT MESSAGE TO USER
DB CR,LF,'BANNER is invoked by a command line like:'
DB CR,LF,' BANNER <text>'
DB CR,LF,'In which case <TEXT> will be printed and control '
DB CR,LF,'returned to CP/M, like "BANNER HELLO" to print'
DB CR,LF,'"HELLO", or'
DB CR,LF,' BANNER /o'
DB CR,LF,'where ''/o'' is ''/T'' to invoke Text Entry'
DB CR,LF,'Mode in which the user may enter several sequential '
DB CR,LF,'Banner Lines to be printed. Any other option '
DB CR,LF,'prints this Help Message and Exits.'
DB 0
*
* Exit BANNER
*
EXIT:
LHLD STACK ;GET OLD STACK PTR
SPHL ;LOAD SP
RET
*
* PRINT BANNER WHEN CONTAINED IN COMMAND LINE
*
ONE$LINE:
LXI H,BUFF ;PT TO INPUT LINE
MOV A,M ;GET CHAR COUNT
ORA A ;PRINT HELP MESSAGE IF NO CHARS
JZ HELP
MOV B,A ;CHAR COUNT IN B
DCR B ;COUNT DOWN BY 1 TO ELIMINATE LEADING SPACE
JZ HELP
LXI D,BLINE ;PT TO BANNER LINE BUFFER
MOV A,B ;GET CHAR COUNT
STAX D ;STORE CHAR COUNT
INX H ;PT TO FIRST CHAR (SPACE)
INX H ;PT TO CHAR AFTER SPACE
INX D ;PT TO NEXT POSITION IN BUFFER
OL1:
MOV A,M ;GET NEXT CHAR
STAX D ;PUT IT
INX H ;PT TO NEXT
INX D
DCR B ;COUNT DOWN
JNZ OL1
CALL BANNER ;PRINT BANNER
JMP EXIT ;EXIT TO CP/M
*
* Process Multiple Line Input
*
BTEXT:
CALL PMSG
DB CR,LF,'BANNER Multiple Line Input'
DB CR,LF,' Input Line or ^C to Return to CP/M'
DB CR,LF
DB 0
BTEXTL:
CALL PMSG
DB 'BANNER? ',0
LXI D,INLINE ;INPUT LINE
MVI C,READLN ;BDOS READLN FUNCTION
CALL BDOS
CALL PMSG ;NEW LINE
DB CR,LF,0
CALL BANNER ;PRINT BANNER LINE
JMP BTEXTL ;CONTINUE
*
* PRINT BANNER CONTAINED IN BLINE BUFFER (BLINE=CHAR CNT)
*
BANNER:
LXI H,BLINE ;STORE ENDING <NULL>
MOV A,M ;GET CHAR COUNT
CPI MCHARS+1 ;BEYOND CHAR LIMIT?
JC BANNER1 ;CONTINUE IF NOT
CALL PMSG
DB CR,LF,'Truncation Error -- Line too long',CR,LF
DB 0
JMP EXIT ;RETURN TO CALLER
BANNER1:
INX H ;PT TO FIRST CHAR
ADD L ;ADD TO LOW-ORDER BYTE
MOV L,A ;PT TO BYTE
MVI M,0 ;STORE <NULL>
MVI D,80H ;PT TO MSB+1
CBAN:
LXI H,BLINE+1 ;SET PTR TO FIRST CHAR
MOV A,M ;CHECK FOR NO CHARS
ORA A ;ENDING ZERO?
JZ CB4 ;4 CRLF'S IF SO
SHLD NEXTCH
CALL CRLF ;NEW LINE
MOV A,D ;GET BIT PTR
RRC ;ROTATE
ANI 7FH ;MASK OUT MSB
MOV D,A ;SET BIT PTR
JZ CB2 ;NEW LINE AND THEN EXIT
CB1:
CALL CONIN ;GET NEXT CHAR
CALL CAPS ;CAPITALIZE
MOV C,A ;CHAR IN C
ORA A ;DONE?
JZ CBAN ;DO NEXT LINE IF SO
CALL CONV ;GET ADDRESS OF DATA IN HL
JC CB1 ;SKIP IF ERROR
CALL PRINT ;PRINT 5 CHARS FOLLOWED BY TWO SPACES
JMP CB1 ;CONTINUE
CB4:
CALL CRLF ;4 <CR> <LF>
CALL CRLF
CALL CRLF
CB2:
CALL CRLF ;1 CRLF
RET
*
* COMPUTE POINTER TO TABLE ENTRY OF CHAR IN REG A
* ON INPUT, A=CHAR; ON OUTPUT, HL=PTR TO TABLE ENTRY (1ST BYTE)
*
CONV:
PUSH B ;SAVE BC
PUSH D ;SAVE DE
SUI ' ' ;CONVERT <SP> TO 0
RC ;INVALID CHAR
CPI 7BH-' ' ;IN RANGE?
JNC CNVER ;INVALID CHAR
MOV E,A ;VALUE IN E
MVI D,0 ;VALUE IN DE
MOV H,D ;VALUE IN HL
MOV L,E
DAD H ;VALUE * 2
DAD H ;VALUE * 4
DAD D ;HL = VALUE * 5
LXI D,CHARS ;POINT TO BEGINNING OF TABLE
DAD D ;HL PTS TO ELEMENT IN TABLE
POP D ;RESTORE DE
POP B ;RESTORE BC
ORA A ;CLEAR CARRY
RET
CNVER:
STC ;SET CARRY FOR INVALID CHAR
POP D ;RESTORE DE
POP B ;RESTORE BC
RET
*
* CAPITALIZE CHAR IN A
*
CAPS:
CPI 61H ;LOWER CASE?
RC
ANI 5FH ;MASK OUT BIT 5
RET
*
* PRINT CHAR IN C ACCORDING TO THE ENTRY PTED TO BY HL
* BIT MASK IS IN D
*
PRINT:
PUSH B ;SAVE BC (C=CHAR)
MVI B,5 ;5 BYTES/CHAR
PRINT1:
MOV A,M ;GET BIT SET
ANA D ;MASK FOR BIT IN QUESTION
JZ PRINT3 ;IF ZERO, PRINT <SP>
CALL LSTOUT ;PRINT CHAR IN C
PRINT2:
INX H ;PT TO NEXT BYTE
DCR B ;COUNT DOWN
JNZ PRINT1
MVI C,' ' ;PRINT THREE SPACES
CALL LSTOUT
CALL LSTOUT
CALL LSTOUT
POP B ;RESTORE BC
RET
PRINT3:
MOV E,C ;SAVE CHAR
MVI C,' ' ;PRINT <SP>
CALL LSTOUT
MOV C,E ;GET CHAR
JMP PRINT2
*
* SUPPORT ROUTINES
*
PMSG:
XTHL ;GET PTR TO STRING
MVI B,0 ;SET TAB COUNTER
PMSG1:
MOV A,M ;GET NEXT BYTE
INX H ;PT TO NEXT
ORA A ;DONE?
JZ PMSG2
CPI TAB ;TABULATE?
JZ PMSG$TAB
MOV C,A ;CHAR IN C
CALL CONOUT ;PRINT CHAR
INR B ;INCR CHAR COUNT
JMP PMSG1
PMSG$TAB:
MVI C,' ' ;PRINT <SP>
CALL CONOUT ;PRINT
INR B ;INCR POSITION COUNT
MOV A,B ;GET IT
ANI 7 ;DONE?
JNZ PMSG$TAB
JMP PMSG1 ;PROCESS NEXT CHAR
PMSG2:
XTHL ;RESTORE HL, PTR
RET
CRLF:
MVI C,CR
CALL LSTOUT
MVI C,LF
JMP LSTOUT
LSTOUT:
PUSH H ! PUSH B ! PUSH D
MOV E,C
MVI C,OUTL ;OUTPUT TO LST:
CALL BDOS
POP D ! POP B ! POP H
RET
CONOUT:
PUSH H ! PUSH B ! PUSH D
MOV E,C
MVI C,OUTC ;OUTPUT TO CON:
CALL BDOS
POP D ! POP B ! POP H
RET
CONIN:
PUSH H ! PUSH D ! PUSH B
LHLD NEXTCH ;GET NEXT CHAR PTR
MOV A,M ;GET CHAR
INX H ;PT TO NEXT
SHLD NEXTCH
ANI 7FH ;MASK MSB IF ANY
POP B ! POP D ! POP H
RET
*
* CHARACTER TABLE
* THE CHARACTERS REPRESENTED IN THIS TABLE ARE IN A 5X7 FORMAT
* THE FIRST BYTE IN EACH ENTRY REPRESENTS THE FIRST CHAR TO PRINT, ETC
* THE BITS 6 TO 0 REPRESENT LINES (SUCCESSIVE) TO PRINT FOR THE CHAR
*
* FOR EXAMPLE, THE ENTRY FOR '*' IS 22H,14H,7FH,14H,22H; THIS GENERATES:
*
* * 00100 R 6
* * * * 10101 E 5
* *** 01110 A 4
* * 00100 D 3
* *** 01110 2
* * * * 10101 D 1
* * 00100 O 0
* ^^^^^ W
* 21712 N ^
* 24F42 B
* HHHHH I
* T
*
CHARS:
DB 00H,00H,00H,00H,00H ;<SP>
DB 00H,00H,7DH,00H,00H ;EXCLAMATION MARK
DB 00H,70H,00H,70H,00H ;"
DB 14H,7FH,14H,7FH,14H ;#
DB 12H,2AH,7FH,2AH,24H ;$
DB 62H,64H,08H,13H,23H ;%
DB 36H,49H,35H,02H,05H ;&
DB 00H,00H,70H,00H,00H ;'
DB 1CH,22H,41H,00H,00H ;(
DB 00H,00H,41H,22H,1CH ;)
DB 22H,14H,7FH,14H,22H ;*
DB 08H,08H,3EH,08H,08H ;+
DB 00H,01H,06H,00H,00H ;,
DB 08H,08H,08H,08H,08H ;-
DB 00H,03H,03H,00H,00H ;.
DB 02H,04H,08H,10H,20H ;/
DB 3EH,45H,49H,51H,3EH ;0
DB 11H,31H,7FH,01H,01H ;1
DB 21H,43H,45H,49H,31H ;2
DB 22H,41H,49H,49H,36H ;3
DB 0CH,14H,24H,7FH,04H ;4
DB 7AH,49H,49H,49H,46H ;5
DB 3EH,49H,49H,49H,26H ;6
DB 43H,44H,48H,50H,60H ;7
DB 36H,49H,49H,49H,36H ;8
DB 30H,49H,49H,49H,3EH ;9
DB 00H,00H,36H,00H,00H ;:
DB 00H,01H,16H,00H,00H ;;
DB 08H,14H,22H,41H,00H ;<
DB 14H,14H,14H,14H,14H ;=
DB 00H,41H,22H,14H,08H ;>
DB 20H,40H,4DH,50H,20H ;?
DB 7EH,41H,5DH,4DH,39H ;@
DB 3FH,48H,48H,48H,3FH ;A
DB 7FH,49H,49H,49H,36H ;B
DB 7FH,41H,41H,41H,41H ;C
DB 7FH,41H,41H,41H,3EH ;D
DB 7FH,49H,49H,49H,41H ;E
DB 7FH,48H,48H,48H,40H ;F
DB 7FH,41H,41H,49H,4FH ;G
DB 7FH,08H,08H,08H,7FH ;H
DB 41H,7FH,41H,80H,80H ;I
DB 03H,01H,01H,01H,7FH ;J
DB 7FH,08H,14H,22H,41H ;K
DB 7FH,01H,01H,01H,01H ;L
DB 7FH,20H,10H,20H,7FH ;M
DB 7FH,30H,08H,06H,7FH ;N
DB 7FH,41H,41H,41H,7FH ;O
DB 7FH,48H,48H,48H,78H ;P
DB 7FH,41H,45H,43H,7FH ;Q
DB 7FH,48H,4CH,4AH,79H ;R
DB 32H,49H,49H,49H,26H ;S
DB 40H,40H,7FH,40H,40H ;T
DB 7FH,01H,01H,01H,7FH ;U
DB 70H,0CH,03H,0CH,70H ;V
DB 7FH,02H,04H,02H,7FH ;W
DB 63H,14H,08H,14H,63H ;X
DB 60H,10H,0FH,10H,60H ;Y
DB 43H,45H,49H,51H,61H ;Z
DB 7FH,41H,41H,41H,00H ;[
DB 20H,10H,08H,04H,02H ;\
DB 00H,41H,41H,41H,7FH ;]
DB 04H,08H,10H,08H,04H ;^
DB 01H,01H,01H,01H,01H ;_
DB 00H,40H,20H,10H,00H ;'
DB 3FH,48H,48H,48H,3FH ;A
DB 7FH,49H,49H,49H,36H ;B
DB 7FH,41H,41H,41H,41H ;C
DB 7FH,41H,41H,41H,3EH ;D
DB 7FH,49H,49H,49H,41H ;E
DB 7FH,48H,48H,48H,40H ;F
DB 7FH,41H,41H,49H,4FH ;G
DB 7FH,08H,08H,08H,7FH ;H
DB 41H,7FH,41H,80H,80H ;I
DB 03H,01H,01H,01H,7FH ;J
DB 7FH,08H,14H,22H,41H ;K
DB 7FH,01H,01H,01H,01H ;L
DB 7FH,20H,10H,20H,7FH ;M
DB 7FH,30H,08H,06H,7FH ;N
DB 7FH,41H,41H,41H,7FH ;O
DB 7FH,48H,48H,48H,78H ;P
DB 7FH,41H,45H,43H,7FH ;Q
DB 7FH,48H,4CH,4AH,79H ;R
DB 32H,49H,49H,49H,26H ;S
DB 40H,40H,7FH,40H,40H ;T
DB 7FH,01H,01H,01H,7FH ;U
DB 70H,0CH,03H,0CH,70H ;V
DB 7FH,02H,04H,02H,7FH ;W
DB 63H,14H,08H,14H,63H ;X
DB 60H,10H,0FH,10H,60H ;Y
DB 43H,45H,49H,51H,61H ;Z
*
* BUFFERS
*
DS 40 ;20-ELT STACK
STACK:
DS 2 ;TOP OF BANNER STACK; CP/M STACK
NEXTCH:
DS 2
LLEN EQU 80 ;NUMBER OF CHARS IN LINE, MAX
INLINE:
DB LLEN ;CHAR COUNT FOR INLINE
BLINE:
DS LLEN+1 ;NUMBER OF BYTES IN LINE
