Excellent, so would that bitmap be both the font and brushes or would they be as separate 'files' on the master disk? The reason i ask is we probably don't have a working brush master disk
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Fair dos, in that case, I could use some advice on some odd access patterns I'm seeing when the boot monitor is searching for fonts and brushes. More info in reply.
thank you, even the smallest detail could help.
It first seeks to Cylinder 1 (as opposed to Cylinder 0), then issues what i'm assuming is a Read command, then loops presetting the RAM address on the Disc Data Buffer Card up by 0x10 each loop, reading the first two bytes. So it reads RAM buffer addr 0x10, 0x11, 0x20, 0x21, etc.
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There was a very crude directory at the start. I could believe that it it was 16 bytes per entry, and the first two were a file type. So it is searching for a file of type “Text Brush”. Other entries would be start and length. Can’t recall why cylinder 0 not used.
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Seems to be exactly as you describe. It works-ish. Now I just need to figure out what command 6 and command 4 to the Disk Sequencer Card are supposed to do. I suspect they're some sort of read-to-Brush-Store command, do you recall anything more specific than that?
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