Int 1Fh - System DATA - Graphics Display Character Bit Map (8x8) Table

  • not a true interrupt, but a far pointer to a table of character bit maps for the graphics mode representation of ASCII characters 128 through 255

This vector points at 1024 bytes of graphics data, 8 bytes for each character 80h-FFh (128 to 255).

  • can be used to change character fonts in CGA graphics mode

graphics data for characters 00h-7Fh stored at F000h:FA6Eh in 100% compatible BIOSes

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