Hrmm so close. Can you take some screenshots of the Regular/Extended ASCII chart in QBasic? (Help->Contents->ASCII Character Codes)

Sure !

This part looks fine

This one doesn't

Super cool. And yeah,m that looks like there is a second font where the graphical characters are supposed to be. 😁

Try one of these...

No, that didn't work, it simply made the second half the same as the first one

Edit: ok you've edited, let me try the other one

Ok same with Font3.zip 🙁

Ok here is my last lazy attempt, if this doesn't work I will have to put some more effort into it later.

VICTORY \o/

Thanks everybody involved and especially Plasma for tweaking the ROM 😀

By the way, what was your technique to tweak the ROM ? Of course it must be some sort of bit shift, but I think reproducing it would be useful for others (or simply for fonts hacks).

😎

It's just some ugly QB code:

1DEFINT A-Z
2
3OPEN "ibm.bin" FOR BINARY AS #1
4
5temp$ = SPACE$(&H1800)
6GET #1, , temp$
7
8DIM char$(0 TO 1023)
9
10FOR i = 0 TO 255
11  char$(i) = SPACE$(8)
12  GET #1, , char$(i)
13NEXT
14
15FOR i = 0 TO 127
16  char$(i + 256) = char$(i + 128)
17  char$(i + 384) = char$(i + 128)
18  char$(i + 512) = char$(i + 128)
19  char$(i + 640) = char$(i + 128)
20  char$(i + 768) = char$(i + 128)
21  char$(i + 896) = char$(i + 128)
22NEXT
23
24CLOSE #1
25
26DIM invert(0 TO 1023)
27FOR i = 0 TO 1023
28  j = i * 2
29  IF j > 1023 THEN j = (j AND 1023) OR 1
30  invert(j) = i
31NEXT
32
33OPEN "font4.bin" FOR BINARY AS #1
34
35FOR j = 0 TO 1023
36  PUT #1, , char$(invert(j))
37NEXT
38
39CLOSE #1

I switched to the IBM font because I was unsure of the layout of the Eagle PC Spirit font. I fixed the extended characters by just repeating them 🤣.

Brilliant. Also the QBasic program is a nice touch!

Thanks for sharing 😁

BTW I noticed that your card can also do MDA/Hercules modes. If you plan on using those, the font will need some more work since I only included 8x8 and it needs 8x14.

Oh I see. Might be interesting to try that out !

I don't plan to use those, but if I ever get rid of that card or change my mind it would save a lot of headaches !