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HP 4195A 8x13 font #26

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fenugrec opened this issue Apr 1, 2023 · 1 comment
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HP 4195A 8x13 font #26

fenugrec opened this issue Apr 1, 2023 · 1 comment

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@fenugrec
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fenugrec commented Apr 1, 2023

This font is extracted from a ROM dump, Rev 2.00 (datecode 03/1989), of an HP 4195A network/spectrum analyzer.

Characters 0x20-0x7F are essentially ASCII. 00-0x1F are special characters; many are simply empty space.
The ROM uses a lookup table which maps all these unused characters to the same "space" bitmap.
In addition, they are drawn LSB-to-MSB which made it necessary to mirror the whole font.

hp4195_8x13_remapped

hp4195_8x13_remapped.yaff.txt

@robhagemans
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Thanks! Note that you can achieve the automatic replacement in yaff by setting default-char: 0x20. But this works, too.

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