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Retrocomputing

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    Some basics saved the line number as an ASCII string, so that could explain 4 digit maximum. Using max 32767 could be using signed integer of some reason, or the top bit was used by the interpreter/editor for marking purposes Commented Jan 14, 2020 at 12:43
  • I was not aware of storing it as a string , useful to know ! Thank you. Commented Jan 14, 2020 at 12:59
  • Will look into which versions employ strings for this , logic tells me early variants. Commented Jan 14, 2020 at 13:21
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    According the ZX Spectrum Manual, the line number is not stored as a string, see: worldofspectrum.org/ZXBasicManual/chap24diag3.gif Commented Jan 14, 2020 at 13:37
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    oric basic accepts 63999 but not 64000 as a line number... Commented Jan 14, 2020 at 22:53