Cet émulateur Atari ST a été mis à jour. Les améliorations sont les suivantes:
Major highlights of this new version :
- Major rewrite of the internal delays/timers, speed up emulation by ~10% on average
- Various CPU improvements (FPU, IPL timing)
- Faster CPU emulation for 68000 in cycle exact mode (speed up emulation by ~7%)
- More accurate MFP emulation, combined with the new internal timers
- Improved VBLANK position in 50 and 60 Hz mode
- Improved cycle accurate YM2149 emulation, supporting new effects (syncsquare in maxYMiser v1.53)
- Better value for MFP GPIP bit 7 (STE DMA sound and Falcon sound)
- For SCSI, improve "Mode Sense" and "Report Luns"
- For IKDB, better emulation of commands $A and $B
- Better MIDI using PortMidi (Linux/Windows/macOS)
- Better RS232 support for BSD/macOS
- Some fixes for Gemdos HD mode
- Many debugger improvements
- Hatari now defaults to the SMALL_MEM build option, using less RAM during emulation
Following features are deprecated and will be removed in a future release:
- SDL 2.x "bUseSdlRenderer" config and "GPU scaling" GUI options (after HW support for SDL2 is available widely enough)
- The "external" disassembler (i.e. use "--disasm uae" instead)
- Hatari XBios(255) API enabled with the "--bios-intercept" option (i.e. use "--natfeats" & "--cmd-fifo" options and "hconsole" instead)
- The old ~/.hatari configuration file location (use ~/.config/hatari instead)
- The rendering functions for 16 bits-per-pixel host screens (almost all recent hardware should have 32 bpp nowadays)
Removed features (that were marked as deprecated in earlier releases):
- Support for the SDL 1.2 library (i.e. SDL 2.x should be used instead)
- Support for building Hatari for Windows CE has been removed, too, since this was relying on version 1.2 of the SDL library.
- The old UAE CPU core (i.e. the new WinUAE CPU core is now always used)
- Python v2 support in Python scripts (Python 2 was end of life in 2020)
Emulation improvements:
- Internal timers:
*Rewrite the internal timers used to emulate delays/events/mfp timers (gain ~10% on average, up to 60% in very specific cases)
- CPU:
*Improve FPU emulation (exceptions, unimplemeted instructions, fsincos)
*Improve FPU emulation in softfloat mode
*Improve IPL timing update in various opcodes
*Faster emulation of 68000 in cycle exact mode (gain ~7%)
- MFP:
*Use the new internal timers for MFP timers
*Improve accuracy when reading MFP's Timer Data Register
*More accurate emulation by processing all internal timers first before reading/writing any MFP register (was previously delayed after processing the current CPU instruction, which was too late in some cases)
- Video:
- Fix position for detecting when VBLANK should be disabled in 50 Hz and 60 Hz
- DSP:
*Improved interrupts handling and SSI (from Previous NeXT emulator)
- Sound:
*Improve accuracy of YM2149's sample generation by using the main CPU clock as a reference for all timings (syncsquare effect as used in recent maxYMiser v1.53)
*Use specific memory functions when doing DMA for STE and Falcon sound (don't generate bus error when pointed memory is not present)
*Improve value of MFP GPIP bit 7 for DMA sound in the case of STE/TT
(video mono XOR dma sound xsint)
*Use 2 different signals SOUNDINT and SNDINT for Falcon (connected to MFP GPIP7 and MFP Timer A input)
- FDC:
*Stall the CPU during 32 cycles when DMA FIFO is filled/transferred
- SCSI:
*Improve MODE SENSE, add REPORT LUNS support
- IKBD:
*support deltax/deltay in command $A (set mouse keycode mode) and threshold x/y in command $B (set mouse threshold)
Emulator improvements:
- TOS support:
*Support 1024k EmuTOS images also on TT & Falcon
*Add country code option to select EmuTOS language, keyboard layout and screen refresh rate on Mega/ST/STe machines (ones lacking NVRAM)
- MIDI support:
*Fix: PortMidi rejects Hatari MIDI events
*Fix: MIDI IRQ needs to be re-enabled on MIDI device change even when there's no reset
*Support for matching PortMidi device name by prefix when there's no exact full match
- RS232:
*The RS232 receiver code has been rewritten to use polling instead of using a thread. This should avoid deadlocks on BSD/macOS systems when shutting down or reconfiguring the RS232 settings.
- TT/Falcon:
*Increase max TT-RAM amount to 1024 MiB
*Separate config + CLI options to override NVRAM language and keyboard layout settings
*NVRAM language default is taken from the LANG env variable
- Falcon:
*Fix: restore zoom mode correctly when loading snapshots
*Correct also smaller specified memory amounts to valid ones
*Microphone emulation now uses SDL2 instead of PortAudio
- MegaSTE/TT:
*Add VME/SCU registers "--vme " access option (Linux needs "none" option and TOS v2 / v3 need "dummy" one until Hatari implements real VME/SCU register emulation)
- VDI mode:
*Relax VDI mode width alignment from 128/planes to 16/planes, and height alignment from 16 to 8 pixels
- SDL GUI:
*Fix: ignore unrecognized events in file selector (buttons could be incorrectly shown as selected)
*Fix: avoid key release event from SDL GUI closing leaking to emulation
*Do VDI mode size changes in (faster) 16 pix increments, and prevent user seeing invalid VDI mode sizes
*Fine-tune CPU dialog texts and keyboard shortcuts
- GEMDOS HD:
*Fix: clear GEMDOS Fread / Fwrite errors
*Fix: Allow GEMDOS tasks to use other tasks' file handles
- Command line:
*Support "off" as alias for "none" when disabling DSP, FPU, Joysticks and VME, for consistency with HW on/off options
- NatFeats:
*Fix: freeze with NF_STDERR when string is empty or unterminated
- Debugger:
*Fix: profile header so that profile data post-processor knows how to parse built-in WinAUE CPU core ("uae") disassembly output, not just "ext" disassembler output
*Repeat CPU & DSP "step" and "next" commands on Enter
*Output PC location in CPU & DSP disassembly
*More readable "variables" command output
*Add "PConSymbol" variable for breaking on symbol addresses
*Add "mmu" and "vme" options for "info" command
*Add "scc" and "vme" (VME/SCU reg access) tracing support
*Setting trace to "none" disables also xconout console output enabled by "os_base" trace option
*"next subreturn" will run until current function returns, even if function calls other functions before that
*Symbol loadind code is now shared between debugger "symbols" command & "gst2ascii" tool, and it can now read also long symbol names from Pure-C debug information
*Auto-detection for whether section offsets should be used when loading symbol information
*MIDI trace options are split to "midi" (device & MIDI events) and "midi_raw" (IRQ and register read/write access). Trace logging added also for MIDI byte writes, not just reads
*Trace options are listed in alphabetical order
- Windows:
*Next/prev drive change buttons added to SDL GUI file select dialog
Build/configure:
- SMALL_MEM option is enabled by default
Tools:
- Add (SDL2 specific) "listkeys" key mapping helper back
- TOS boot tester: support 1024k EmuTOS images, misc fixes
Documentation:
- Compatibility updates, especially for 060 programs that need FPSP060.PRG for missing instructions emulation
Fixed demos:
- Hackabonds Demo (wrong vblank detection)
- We Were @ HD version under GEMDOS HD (file handle access)
Fixed programs:
- maxYMiser FM v1.53 by gwEn (support for syncsquare effect)
Fixed games:
- Chambers of Shaolin : DMA sound was wrong in STE mode with 1 MB RAM (mfp gpip bit 7)
- Super Hang On : fix flickering raster colors (bclr #0,$fffffa0f sometimes happened at the same time timer C expired) |
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