BlitterStudio/amiberry

Assist with merging updates and synchronizing functionality from the upstream WinUAE repository (Windows) to Amiberry (Linux/macOS/Android/Windows). Includes a comprehensive guide for porting Win32 GUI dialogs to Dear ImGui, mapping Windows controls to ImGui equivalents, and analyzing platform-specific code. Use this for analyzing upstream commits, identifying Windows-specific code, adapting GUI panels, and verifying feature parity.

Reference workflow for Amiberry ARM64 JIT debugging and fixes. Use for ARM64 JIT crashes, stalls, wrong behavior, performance work, codegen issues, inter-block flag handling, natmem or page-0 guard bugs, FPU JIT problems, and regressions in files such as compemu_support_arm.cpp, compemu_fpp_arm.cpp, compemu_midfunc_arm64.cpp, or gencomp_arm. Covers the known root-cause fixes around liveflags, flush_flags, FBcc and Bcc and BSR sign extension, PC_P 64-bit pointer handling, ADDX and SUBX Z-flag semantics, bus error recovery, R_REGSTRUCT offsets, SysInfo MIPS, Lightwave, and Workbench boot issues.