| 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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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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| Re: ZSID patched for Z180 [message #9940 is a reply to message #9771] |
Mon, 30 May 2022 02:12  |
hperaza
Messages: 68
Registered: March 2017
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Member |
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IIRC, C.B. Falconer's DDTZ supported Z180 opcodes, but it used Intel-style mnemonics for the disassembly display and the embedded assembler. Z8E (my favorite) uses Zilog mnemonics and can be assembled for either Z80 or Z180, but being a full-screen debugger it requires proper terminal support/setup.
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