glen herrmannsfeldt wrote: >No, you write a second line with a '+' as carriage control character. >This is even so popular as to be a special case for the 3800, which otherwise does not allow writing two characters on one print column.
True. [1] Combine with this from my ancient JCL (archeological find extracted from a HSM ML2 layer dated around 1990! ;-D ) : //SYSOUT DD SYSOUT=(7,,3800),CHARS=(GS15,FM15),FCB=FCB8, // DCB=(BLKSIZE=133,OPTCD=J),COPIES=1 You could overwrite a line using other fonts/characterset and '+'. For example, creating first the outlines and then the actual data on the same lines on blanks. Say you print something like this (space on column 1) : 1K K K (1 - Characterset FM15, K - replacement character for '|') and overwrite this with actual data (+ on column 1) : +0 ABC 123 (0 - Characterset, GS15) giving this actual finished data to be read after printing: | ABC | 123 | You could for example use 'K' and '-' to create this '+'. So you use one characterset over another one and the 3800 will treat the 'K' as '|'. Or 'K' and 'S' giving a US dollar sign, '$'. Of course above is a simplified example, but this give you the idea of overwriting one character over another one. >Presumably it builds a record in a buffer, allowing overprint with different fonts, and a special bit to indicate underlining. Yup. This is what I also did. I used underline, '_', under data to be highligthed by way of speaking. >With ink and ribbon printers, you can get darker print (bold-like) by overprinting the same characters using '+', though I believe that the 3800 also doesn't do that. True. I remember that all characters were of one shade of black on 3800 despite repeated overwriting. Groete / Greetings Elardus Engelbrecht [1] - This trick enabled bored ( ;-D ) programmers to create pretty pretty pics resembling artwork. You hang up the paper against a wall and then stand back so 5 meters to admire the artwork while hoping your boss doesn't see it. ;-D
