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96 lines
2.7 KiB
Plaintext
96 lines
2.7 KiB
Plaintext
Using control characters in a SUBMIT file
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-----
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Question: How do I enter control characters into a SUBMIT file?
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The instructions on page 28 of the CP/M manual do not seem to work.
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Answer: SUBMIT requires you to enter '^z' to place a CTRL Z in the
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file. The problem comes in that SUBMIT also converts all characters to
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uppercase. The following patch suggested by Digital Research will modify
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SUBMIT to require '^Z'.
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A>ddt submit.com
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DDT VERS 2.2
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NEXT PC
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0600 0100
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-s442
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0442 61 41
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0443 32 .
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-g0
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A>save 5 submit.com
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This alternate patch will allow lowercase characters to be entered
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which is also extremely helpful when using XSUB and ED with strings that
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require lowercase characters.
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A>ddt submit.com
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DDT VERS 2.2
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NEXT PC
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0600 0100
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-s370
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0370 5F FF
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0371 32 .
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-g0
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A>save 5 submit.com
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The following example submit file (using only the alternate patch)
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uses ED to search a file and replace all lowercase strings 'recieve' with
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'receive'.
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xsub
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ed file.doc
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#a
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b#srecieve^zreceive
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e
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It should be mentioned that in no case can the control characters
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'^P' or '^C' be used in a submit file to obtain the normal functions of
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console input for printer toggle or warm start.
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CTRL P and CTRL C in a SUBMIT file
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-----
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Question: Why can't I put "CTRL P" and "CTRL C" in a SUBMIT file
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using the instructions in the manual?
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Answer: The usual processing of characters done by the BDOS on
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input is bypassed when using SUBMIT. The following programs can simulate
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these functions.
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;
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; PRINT - turn printer echo on and off
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;
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; Usage:
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;
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; A>PRINT ?
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;(turn printer echo on with anything following PRINT)
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; A>PRINT
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;(turn printer echo off with nothing following PRINT)
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;
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0100 org 0100h
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0100 2A4E00 lhld 04eh ;address of bios
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0103 110DF5 lxi d,0f50dh ;offset of flag in bdos
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0106 19 dad d ;point to it
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0107 3A8000 lda 080h ;echo on or off?
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010A 77 mov m,a ;set the flag
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010B C9 ret ;return directly to ccp
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; WBOOT - perform a warm boot
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;
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0100 org 0100h
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0100 C7 rst 0
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;
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;PAUSE - suspend execution of a SUBMIT file until a character is typed
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;
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0100 org 0100h
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0100 0E09 mvi c,9
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0102 110D01 lxi d,prompt
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0105 CD0500 call 5
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0108 0E01 mvi c,1
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010A C30500 jmp 5
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010D 5479706520prompt db 'Type any key when ready to continue$'
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