Atari_timing_from_ASIC_ST4081S_page_7,8,48,49.pdf

Example 68000 cpu/video interleaved DRAM timing diagrams of an Atari ST machine.

Adobe Portable Document Format - 83.02 kB - 11/19/2023 at 01:46

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PAL16L8 ZPAL1 V8.pld.txt

First draft guess at what is going on,
from looking at the circuit and the manual.
Not tested yet!!!

text/plain - 2.11 kB - 11/01/2023 at 04:41

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PAL16L8 SPAL1 V24.pld.txt

First draft guess at what is going on,
from looking at the circuit and the manual.
Not tested yet!!!

plain - 2.24 kB - 10/29/2023 at 22:36

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Applix_programmables.zip

Applix programmable device contents, ROM and PAL.
NB the PAL contents are only reading the outputs of the PALs for all possible inputs, which are only an aid to analysis and not a JEDEC programming files.

Zip Archive - 443.23 kB - 10/29/2023 at 14:02

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AllPALs.txt

Notes about some PALs. The combinatorial PALs (e.g. 16L8) are read as if they were ROM chips, and the address and data order indicated. There is no equivalent data for the registered PALs.

plain - 1.40 kB - 10/22/2023 at 14:12

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PAL20L8_SCSI.h

Hex dump for human inspection, from
xxd -c 8 -i 'PAL20L8 SCSI.bin' 'PAL20L8_SCSI.h'

x-chdr - 100.08 kB - 10/22/2023 at 14:08

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PAL20L8_SMMLX.h

Hex dump for human inspection, from
xxd -c 8 -i 'PAL20L8 SMMLX.bin' 'PAL20L8_SMMLX.h'

x-chdr - 800.08 kB - 10/22/2023 at 14:08

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PAL20L8_SMMS.h

Hex dump for human inspection, from
xxd -c 8 -i 'PAL20L8 SMMS.bin' 'PAL20L8_SMMS.h'

x-chdr - 100.08 kB - 10/22/2023 at 14:08

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Applix_material.zip

Unzip and keep directory structure.
Start by clicking on com/Applix/1616/Applix-1616.htm
This has links to all the Applix documents.
NB conversion of pdf files to html is a work in progress. Don't expect more yet.

application/zip - 24.72 MB - 10/08/2021 at 13:34

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1616os.tar.gz

The OS ROM source files, from https://web.archive.org/web/20070903110521/http://www.zipworld.com.au/~akpm/1616os.html

gzip - 1.47 MB - 10/06/2021 at 00:23

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