On Wed, 13 Jul 2022, TK Chia wrote:
Hello Bret Johnson,
[me:]
GRAFTABL basically just needs to install a 1024-byte glyph table
somewhere in conventional memory, and point the int 0x1f vector at it.
(The glyph table can then be used to display "extended ASCII" characters
in a CGA graphics mode.) There is no need to even install any resident
code.
I guess I misspoke --- it seems that Steve's implementation of GRAFTABL
hooks int 0x2f, rather than int 0x1f, and does involve a little bit of code.
Thank you!
It hooks both.
-uso.
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