Modernize Shoebill for macOS ARM64: SwiftUI GUI + core optimizations#22
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kkeker wants to merge 3 commits intopruten:masterfrom
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Modernize Shoebill for macOS ARM64: SwiftUI GUI + core optimizations#22kkeker wants to merge 3 commits intopruten:masterfrom
kkeker wants to merge 3 commits intopruten:masterfrom
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March 21, 2026 18:47
- Add arm64 architecture to core/Makefile, replacing i386 (dead on modern macOS) - Update Xcode project: MACOSX_DEPLOYMENT_TARGET=14.0, SDKROOT=macosx, VALID_ARCHS="x86_64 arm64", enable CLANG_ENABLE_OBJC_WEAK - Fix memset() argument swap in fpu_initialize() (issue pruten#20, reported by @mitchblank) - Fix K&R-style _native_tentox(a) -> _native_tentox(double a) (issue pruten#15) - Rename HACKY_MATH_X86 to HACKY_MATH_NATIVE since double+math.h works on all archs - Bump version to 0.1.0 Based on ARM64 build work from PR pruten#19 by @calmsacibis995. Tested: libshoebill_core.a builds clean (zero warnings) as universal arm64+x86_64. Made-with: Cursor
New SwiftUI application (ShoebillApp/) replacing the legacy Objective-C/OpenGL GUI: - Metal-based framebuffer rendering with proper HiDPI/Retina scaling - SwiftUI Settings with tabbed preferences (General, Disks, Display) - Full ADB keyboard mapping ported from shoeApplication.m - Mouse capture/release (click to capture, right-click to release) - PRAM persistence via ~/Library/Application Support/Shoebill/ - Xcode project with "Build Core Library" script phase - C bridge helpers for Swift interop with anonymous C struct fields Build system: - New top-level Makefile targets: app, core, sdl, legacy-gui, debugger - Updated .gitignore for new build outputs Documentation: - Rewritten README.md with build instructions, requirements, credits - Added CHANGELOG.md documenting all changes for v0.1.0 Made-with: Cursor
Major update bringing Shoebill to modern macOS with Apple Silicon support, a native SwiftUI interface, and extensive emulation core optimizations. Verified to boot A/UX 3.1 to desktop on macOS 15 / Apple M-series. ARM64 & Build: - Universal binary (arm64 + x86_64) for core library - Fixed FPU memset() argument swap (pruten#20) and K&R declaration (pruten#15) - Renamed HACKY_MATH_X86 to HACKY_MATH_NATIVE - Updated deployment target to macOS 14.0 SwiftUI Application (ShoebillApp/): - Modern Metal-based framebuffer rendering - HiDPI/Retina display support - Full ADB keyboard mapping and mouse capture - PRAM persistence via Application Support - Settings UI for ROM, disks, display resolution - App icon Core Optimizations: - CPU dispatch: single direct 64K table replaces two-level indirection - PMMU cache: 4-way set-associative with pseudo-LRU (was direct-mapped) - SoftFloat 2b upgraded to 3e via backward-compatible API shim - Audio: Apple Sound Chip output via Core Audio AudioQueue API - Timer APIs: gettimeofday() replaced with clock_gettime(CLOCK_MONOTONIC) - Ethernet: usleep busy-polling replaced with pthread_cond_timedwait - VBL interrupt delivery with proper thread-safety SDL GUI & Debugger: - Replaced deprecated OpenGL with SDL_Renderer + SDL_Texture - Debugger migrated from GLUT to SDL2 - Fixed ch_reset linker error with libedit Incorporates build changes from PR pruten#19 by @calmsacibis995. Fixes pruten#15, pruten#20. Made-with: Cursor
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Summary
Comprehensive modernization of Shoebill for modern macOS on Apple Silicon. Verified to boot A/UX 3.1 to desktop on macOS 15 / Apple M-series.
This supersedes PR #21 (minimal ARM64 build fixes) with a complete overhaul:
ShoebillApp/) — modern macOS 14+ interface replacing deprecated Cocoa/OpenGL app, with Metal framebuffer rendering, HiDPI support, mouse capture, full ADB keyboard mapping, PRAM persistence, and app iconcpu_step()marked__attribute__((hot))softfloat_compat.c), improved accuracy and ARM64 codegengettimeofday()replaced withclock_gettime(CLOCK_MONOTONIC)for accurate monotonic timingusleep(50)busy-polling replaced withpthread_cond_timedwaiton a dedicated condition variablech_resetlinker errorBuild
Credits
Test plan
make coreproduces universallibshoebill_core.a(arm64 + x86_64)make appbuilds Shoebill.app with embedded core libraryFixes #15, #20.
Made with Cursor