jdgabbard Posted May 28, 2018 Share Posted May 28, 2018 Does any one have a copy of the Disk BASIC ROM listing, or even the Source, that includes comments? I've seen Disk BASIC Unraveled II as found here. But that is for the CoCo 3. I'd like to pick apart the commented code to see if some of it could be re-purposed for a pet project I think I'm going to start up. Commented code would help, as I'm not too familiar with 6809 assembly (most of my experience is with the z80 and it's mnemonics). I've searched for hourse, and I've had a hard time coming up with what I'm looking for. I downloaded F9DASM and disassembled the disk Basic v1.1 code with an offset of 0xC800, but the code isn't even close to that in the Unraveled book. Quote Link to comment Share on other sites More sharing options...
jhd Posted May 28, 2018 Share Posted May 28, 2018 You might try checking contemporary Coco magazines. I recall that Hot Coco published a commented Extended Color Basic listing monthly through much of 1984, and some other magazines published at least sections of annotated ROMs. I do not specifically recall annotated listings for Disk Basic, but as I did not have a disk drive (nor any knowledge of assembly language), it would have not been of any interest to me. Quote Link to comment Share on other sites More sharing options...
jdgabbard Posted May 29, 2018 Author Share Posted May 29, 2018 Yeah, I supposed I'll probably have to search through a lot of the older magazines. I seem to be just running in circles on Google... Quote Link to comment Share on other sites More sharing options...
MarkO Posted June 5, 2018 Share Posted June 5, 2018 Dave Phillipson ( programmer of an OS9 Level 2 program called Supercomm ) said: "Tell him the unravelled book has got it. He’s also got the start address wrong. It is $C000 not $C800. I just checked "DISK BASIC UNRAVELLED II" and it’s right there on page B2. The DIsk ROM is the same regardless of which model of CoCo." http://www.colorcomputerarchive.com/coco/Documents/Books/Unravelled%20Series/disk-basic-unravelled.pdf MarkO Quote Link to comment Share on other sites More sharing options...
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