Re: 1551

From: Marko Mäkelä (
Date: 1998-09-16 15:03:57

On Wed, 16 Sep 1998, Richard Atkinson wrote:

> ROMs that need dumping are my 1551 ROM and the version of the C16 kernal
> not already up on funet. Has anyone ever run a diff (or similar) utility
> on those kernals (NTSC versions), to see exactly what was changed?

I once ran diff on hexdumps of the ROM images, but the differences were
not so obvious, and I didn't bother to disassemble the modified parts
(even in my head) and/or to check from the memory map which zero page
variables and/or I/O registers were affected.  Comparing the ROMs
shouldn't be that difficult.


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