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acumos.txt
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1993-01-22
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813b
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38 lines
Acumos AVGA2 512k
AVGA3 2MB
3C4h index 6 (R/W):
Note: Write 12h to this register to unlock extensions.
3C4h index 0Ah (R/W):
bit 0-1 Video Memory. 0=256k, 1=512k, 2=1Mb
3CEh index 9 (R/W): Bank register
bit 0-7 Bank number in 4k units.
ID Acumos chip:
wrinx($3c4,6,0); {disable extensions}
if not testinx($3CE,9) and not testinx($3CE,$A) then
begin
wrinx($3c4,6,$12);
if testinx($3CE,9) and testinx($3CE,$A) then
__AcuMos__
end;
Video Modes:
54h T 132 43 16
55h T 132 25 16
56h T 132 43 2
57h T 132 25 2
58h G 800 600 16 planar
59h G 800 600 2
5Ch G 800 600 256 packed
5Dh G 1024 768 16 planar
5Eh G 640 400 256 packed
5Fh G 640 480 256 packed