1. Atom CRC checking program Calculates the CRC of a 4K section (for e.g. FP ROM, the Basic and OS parts, and utility ROMs). Takes 2 seconds to run instead of 6 minutes or so that the Basic version in the user guide takes.
Utility ROMs, located at #A000:
AXR1, alternate version 2EB5
PCHARME, alternate version A960
Atom calc 4B9A
GAGS 2.0E 4198
EDIT 1.2 (wordpack) B326
EDIT 1.2, alternate version B3A5
Watford utility ROM F545
Standard Acorn ROMs:
FP ROM (#D000) AAA1
Basic (#C000) D67D
Atom OS (#F000) E386
Atom DOS (#E000) 4C45
Atom BBC BASIC board OS 576D
2. Atom RAM test program This tests the RAM in the screen area, and says which 2114 RAM chip is defective (if any). An absent RAM chip will be identified as a defective chip. This is a good way to verify the program works (remove a chip and see what happens). The test method is a bit too simple, but I wasn't in the mood to improve it further.
3. PC program: atomlist 0.2 (C source code with unix Makefile). This program lists Atom Basic programs stored in binary files as the Atom stores them in memory and as saved to tape/disk (similar program to bbclist, but much simpler, output to stdout only).
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Last modified: Sun Apr 22 06:21:34 CEST 2007