1 Topic by Spezzi63

  • Spezzi63
  • esxDOS Fan
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  • Registered: 2016-03-18
  • Posts: 69

Topic: txt-files for .more = what format

Hi,
Which format must have a txt-file to be displayed correctly with .more.
?I see many ?? ? (question marks) and notice, there are no line breaks.
Continues to do good work,
Guenter

2 Reply by ub880d

  • ub880d
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  • Registered: 2014-08-15
  • Posts: 14

Re: txt-files for .more = what format

".more" command just simply reads content of the file and prints it through rst #10 routine, so it is as if you use PRINT CHR$ byte1; CHR$ byte2;... where byte1,byte2... are ascii codes of characters from file

so, enter is CHR$ 13 (or "\r" in linux). other characters with codes below 32 are special control characters and some of them are not printable and are shown as '?'. that is how rst #10  (or BASIC PRINT) works. some of those control characters can change color of text or background, or to move cursor to different position on screen.

for example, try to run this command in basic:
PRINT CHR$ 22; CHR$ 10; CHR$ 10; CHR$ 16; CHR$ 6; CHR$ 17; CHR$ 1;"HELLO WORLD"

or create file containing characters with codes 22,10,10,16,6,17,1 and text "HELLO WORLD" and print it using .more