KC85/2: Debug UI for Z80 chips (CPU, PIO, CTC)#10
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gunterhager wants to merge 28 commits intofloooh:mainfrom
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KC85/2: Debug UI for Z80 chips (CPU, PIO, CTC)#10gunterhager wants to merge 28 commits intofloooh:mainfrom
gunterhager wants to merge 28 commits intofloooh:mainfrom
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Owner
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You are crazy, but in a good way ;) I'm currently on different zig stuff (wrapping sokol-shdc in a zig package), but I have a week of vacation ahead, will hopefully find some time to have a look. |
Owner
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FYI with the Dear ImGui 1.92.0 update there will most likely be changes required in places where textures are rendered in the UI: https://github.com/floooh/sokol/blob/master/CHANGELOG.md#29-jun-2025 |
In Zig 0.14+, addIncludePath was moved from Build.Step.Compile to Build.Module. Update the sokol/cimgui dependency hashes to latest. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- src/chips/z80dasm.zig: stateless Z80 disassembler (port of z80dasm.h);
callback-based memory access, handles all prefixes (CB/DD/ED/FD)
- src/ui/ui_dasm.zig: standalone scrollable disassembler window with
navigation back-stack and jump-target buttons for CALL/JP/JR/RST/DJNZ
- src/ui/ui_dbg.zig: comptime-parameterized CPU debugger (bus+cpu types);
step-into/over, breakpoints, execution history, F5/F6/F7/F9 hotkeys
- Integrated into KC85: per-tick execWithDebug() loop, Debug menu wired up
All UI is reusable for other emulators (Namco, Bombjack) via runtime
read_cb and comptime Type(.{.bus=..., .cpu=...}) instantiation.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Z80 debugger UI
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I started to implement debug UI similar to the C version of
chips. As a first step I implemented the debug UI for the Z80 chips (CPU, PIO, CTC) that are used in the KC85/2.Not sure if you want to pull this already in your main branch but I would be very happy with a code review. 😸
Let me know what you think.