[Coco] RGB-DOS ROM identification
robert.gault at worldnet.att.net
Thu May 14 07:42:38 EDT 2009
Gene Heskett wrote:
> On Wednesday 13 May 2009, Bob Devries wrote:
>> you're right. The numbers $01 and $88 are in those locations. What fooled me
>> was the the $DC is right there in the next byte. Must have some relation to
>> the type of controller, I'd guess, but right now, I'm not sure what.
> Either that, or it actually is a 3 byte offset, it is in my setup. Its also
> the same offset in my sh.dd, which allows me to access the rsdos images on my
> drive. I had not considered that $D?9A might be used as the other byte of a
> 16 bit integer. 98 is a byte, the MSByte of a 24 bit value, and 99/9A are the
> rest of it. Makes perfect sense now.
Exactly, I mis-spoke. The offset is at $D938 (msb) $D939 (lsw) with the offset
being 3 bytes.
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