Search found 5 matches

by Macaroni
Fri Jan 20, 2012 3:59 am
Forum: Commodore 8 Bit Programming
Topic: bit patterns for partitions on a 1581
Replies: 0
Views: 5815

bit patterns for partitions on a 1581

Hey, does anybody have a book explaining the 1581 Internals? Do you want to sell it? I have already gone through several of Immers and Neufeld's INSIDE COMMODORE DOS books (those things tend to fall apart a lot). In what way is a "partition" different from any other bit pattern? Is there a...
by Macaroni
Wed Sep 28, 2011 1:28 am
Forum: Commodore Discussion
Topic: Powering the C64 via the disk drive
Replies: 1
Views: 3572

Re: Powering the C64 via the disk drive

I looked into that possibility fifteen or twenty years ago. The advantage of feeding the juice into your C-64 the normal way, is the safety factor of having a fuse next to your ON/OFF switch. Having a fuse is a really good idea. Were you thinking of running the juice straight from the disk drive to ...
by Macaroni
Mon Sep 26, 2011 2:59 pm
Forum: Commodore Discussion
Topic: The History behind the BAM
Replies: 1
Views: 3700

Re: The History behind the BAM

To refresh people's memories, the BAM is a combination of a series of ranges, where each range represents block usage for the track in question, and to be a little more precise, each range consists of a bitmap (probably 3 or 4 bytes long, maybe 4 or 5 bytes long - somebody ought to correct me here),...
by Macaroni
Mon Sep 26, 2011 3:00 am
Forum: Commodore Discussion
Topic: The History behind the BAM
Replies: 1
Views: 3700

The History behind the BAM

Can anyone point me in the direction of how Commodore developed the concept of the BAM, or if that isn't possible, maybe a clue where the Commodore BAM came from? Of course, this kind of a feature existed with the 1541 disk drive (for the Commodore 64), and also somewhat earlier for the 1540 disk dr...
by Macaroni
Sun Sep 25, 2011 10:11 pm
Forum: Commodore Discussion
Topic: *PLEASE READ* Approval Required For First Post
Replies: 65
Views: 299925

Re: *PLEASE READ* Approval Required For First TWO Posts

Does a "reply" count as a post?