Do it in Applesoft
10 D$=CHR$(4)
15 ?D$”PR#3”
20 HGR:POKE49246,0:POKE49237,0:CALL62454:POKE4936,0:TEXT
25INPUT”Enter Dbl Hi-res file to view: “;NF$
30 IF NF$=“” THEN TEXT:END
40POKE49237,0: ?D$ “BLOAD “NF$”,A$2000,L$2000”
50POKE49236,0: ?D$ “BLOAD “NF$”,A$2000,L$2000,B$2000”
60 CALL -3100: GET A$: TEXT : GOTO 25
The second BLOAD starts at offset $2000 (via B$) in the file.
The second BLOAD starts at offset $2000 (via B$) in the file.
I see that, but what does that result in? The AUX data starts at $2000
in the file? I don't know what the file format actually is, so I can't
make any conclusions about what it means. Thanks, though. I'm learning
a lot.
FWIW, https://ciderpress2.com/doc-index.html was created to make this
sort of question easier to answer.
In this case, https://github.com/fadden/CiderPress2/blob/main/FileConv/Gfx/DoubleHiRes-notes.md
has a list of authoritative references (//e tech note #3, file type
note $08/0000), and summarizes the standard file layout:
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