Il s’agit d’un émulateur de BBC Micro multiplateforme.
 

 
Les changements sont:
A UI library update means your saved window positions will get reset, and you’ll have to dock and/or position them again. Apologies.
 
Emulation stuff
– Add a config for Master Compact with MOS 5.11i and Arabic ROMs
– Add automatic saving of CMOS/EEPROM contents
– Add emulation of BBC B without ROM board
– Add MMFS support
– Add optional audio low pass filter
– Add SCSI hard disk emulation (compatible with standard Acorn ADFS)
– Fix 1770 FDC issues: fix Watford DDB2/DDB3 double density; fix Watford DDB2 generally
– Fix 65c02 timing issues (fixes Chuckie Egg 2023)
– Fix emulation of write-only I/O registers and empty ROM sockets
– Fix handling of 1 MHz memory regions for Master 128/Compact
– Fix occasional disk fault errors when using Opus Challenger
– Fix video ULA address range
– Improve Video NuLA accuracy
 
UI stuff
– Add background opacity setting for LEDs popup
– Add optional background economy mode: make b2 use a bit less CPU time when not in focus
– The GUI Font Size setting has been replaced by a general GUI Scale, now a scale value rather than a pixel size. As a one-off, you’ll need to set it up again. Sorry!
– (Linux) Fix rendering issues when running with SDL3’s sdl2-compat library rather than SDL2
– (macOS/Windows) Improve retina/high-DPI display support: should look at least a bit nicer
– Improve native file dialogs generally: do a better job with suggested paths, remembering previous folder, and adding file extensions
– (Linux, high-DPI) Use the GUI scale to adjust everything manually; auto-detection is unreliable so b2 doesn’t attempt it
 
Video stuff
– Add lossless video recording: produces a sequence of uncompressed TGAs and WAV files suitable for later compressing with another tool (e.g., ffmpeg)
– Fix video output aspect ratio
– (macOS/Linux) Improve video audio quality by preferring FLAC (lossless) when available
– (Windows) Improve video audio quality by emitting FLAC (lossless)
 
Debugger stuff
– Add an error for unrecognised HTTP API query parameters
– Add configurable debugger syntax
– Add initial support for symbols in debugger, thanks to Mark Fisher
– Add support for breakpoints in I/O regions
– Add view of memory-mapped I/O in memory and disassembly dialogs
– Fix debugger’s view of ROMs when using BBC B without ROM board
– Fix handling of £ (ASCII 96 in the BBC character set) in the debugger
– Fix possible crash when resizing stack debug window to be as small as possible
– Improve debugger setting persistence (ongoing effort)
 
– Symbols support is an ongoing work in progress

 

Télécharger b2 r2026.04.05 (13.1 Mo)

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