| ZSID patched for Z180 [message #9767] |
Sun, 20 February 2022 21:02  |
zenxyzzy
Messages: 14
Registered: September 2017
Location: san francisco
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Junior Member |
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ZSID, for which I have no DRI sources, chokes horribly on TSTIO,
TST, IN0, OUT0, etc. this means that I can't single step Z180
specific code, and have to use Z80 equivalent subroutines for all
the instructions i really want to use for those tight inner loops.
has anybody ever built ZSID from source? I'm competent to add the
instructions, but I'm given to understand that ZSID, like DDT, has
special code to relocate itself to high memory using a PRL-like
mechanism. how in the world do you build that?
https://mark-ogden.uk/mirrors/www.cirsovius.de/CPM/Projekte/ Disassembler/ZSID-en.html
has a hunk of disassembled ZSID source, but I have no idea how to interpret
his instructions for generating a runnable binary.
I'm hoping somebody has already patched ZSID for Z180, so I don't
need to reinvent the wheel.
--curt
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