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Fun with VGA fonts

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@joncampbell123 joncampbell123 released this 19 Jun 20:25
· 5302 commits to master since this release
doslib-20180619
1c55370

VGA library:

  • Fix MDA/CGA detection to ask the BIOS instead of probing I/O ports. Undefined I/O ports do not necessarily return 0xFF especially on older hardware making the old test routine unreliable.
  • Add FONTLOAD, FONTSAVE, and FONTEDIT as demonstration code for how to manipulate font RAM on EGA/VGA hardware
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