Atari ST ROM fully commented ROM listing for BIOS/XBIOS

[sarnau]

I've done that a while ago, but always forgot to share it:

a fully commended TOS BIOS/XBIOS listing for TOS 2.06, TOS 3.06 and ST-Book! The 3 switches allow to see the differences between all these TOS versions.

https://gist.github.com/sarnau/e5f3438c ... ok-206-asm

Here the (trivial) assembly code for the 2nd part of an Atari ST-Book ROM containing a ROM disk:
https://gist.github.com/sarnau/6a4f1bde ... omdisk-asm

And the disassembly for the POWER.PRG in an Atari ST-Book:
https://gist.github.com/sarnau/c2766522 ... okpowerprg

And the registers in an Atari ST-Book based on the sparse documentation, my disassembly (see above) and looking at the schematics of the board:
https://gist.github.com/sarnau/72c4602a ... isters-txt

Hope you like it.

[dhedberg]

Thanks for sharing! Great work and interesting read! I'll print it out and bring it with me to read in bed!

[exxos]

Interesting stuff!

[MasterOfGizmo]

Wow ... extremely impressive. Have you ever reassembled this into a working tos ROM?

This would e.g. allow one to include features from tos3.06 into tos2.06. E.g. a tos2.06 that directly supports TT video modes on a FPGA board implementing a TT shifter

[Maartau]

Hope you like it.

Hell yeah , for sharing the infos .

[AtariZoll]

Nice work. Myself disassembled TOS 1.04 BIOS/XBIOS/GEMDOS/BLITTER part - so all except AES and Desktop. Not much comments there, but it works reassembled.
Only one complain - title is a bit misleading - someone may think full ROM listing