Add Z80 debugger UI: disassembler, CPU debugger, breakpoints#12
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gunterhager wants to merge 27 commits intofloooh:mainfrom
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Add Z80 debugger UI: disassembler, CPU debugger, breakpoints#12gunterhager wants to merge 27 commits intofloooh:mainfrom
gunterhager wants to merge 27 commits intofloooh:mainfrom
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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>
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Sorry, I created this in the wrong repository. I wanted to target my fork. |
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Summary
src/chips/z80dasm.zig— stateless Z80 disassembler ported fromz80dasm.h; callback-based memory access, handles all prefix bytes (CB/DD/ED/FD), all documented and undocumented instructionssrc/ui/ui_dasm.zig— standalone scrollable disassembler window (512 lines viaImGuiListClipper), navigation back-stack, jump-target arrow buttons for CALL/JP/JR/RST/DJNZsrc/ui/ui_dbg.zig— comptime-parameterized CPU debugger (Type(.{.bus=..., .cpu=...})); step-into/step-over, up to 32 address breakpoints, 256-entry execution history ring buffer, F5/F6/F7/F9 hotkeysexecWithDebug()for per-tick stepping/breakpoint detection, Debug menu wired up,memReadcallbackReusability
Both
ui_dasm(plain struct) andui_dbg(comptime-parameterized) use runtimeread_cbfunction pointers for memory access — no system-specific coupling. Other emulators (Namco, Bombjack) can integrate with:Test plan
zig build run-kc852— emulator starts without crash*indicator appears)🤖 Generated with Claude Code