26.Aug.2023
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Motorola68k-Emulation: Betaversion 2.1 von Emu68 (V0.16)
Der Entwickler Michal Schulz hat die Betaversion 2.1 seiner Motorola68K-Emulation Emu68 für die ARM-Architektur mit Fokus auf die PiStorm und PiStorm32lite veröffentlicht, die Fehler der Vorgängerversion korrigiert, aber auch viele wichtige Verbesserungen einführt. Änderungen:
- CCR fixes. Beta 2 has changed internal handling of CCR, but unfortunately added several bugs due to the change. Beta 2.1 fixes all these problems, improving compatibility with m68k software.
- Fixed fusing of MOVE instructions. Until now there were few corner cases where fusing of subsequent MOVE.L instructions resulted in wrong behavior of generated code. Thanks to Paraj this issues are solved now and fusing of MOVE.L instructions works without (hopefully) any bugs.
- Added temporal instruction cache working on CHIP memory during JIT translation process. This greatly improves the translation itself, since not only the translator itself accesses instruction stream, but also CCR optimizer and CRC32 calculator.
- Added optional slowdown of code executed from CHIP memory. This might be important for old games and/or demos which rely on CPU busyloops
- Removed code inlining feature on 24-bit memory to reduce the need of crawling through the CHIP memory. Greatly improves the performance of demos/games where instruction cache is set to checksumming mode.
Die Betaversion 2.1 wird allen PiStorm-Benutzern empfohlen. Standardmäßig wird die Firmware im Zwei-Slot-Modus verwendet. Durch Hinzufügen der Option "one_slot" in cmdline.txt kann man den Single-Slot-Betrieb erzwingen. Dies wird für Pi3-Benutzer nicht empfohlen.
Ausführlichere Informationen zu den Änderungen gibt der Entwickler in seinem neuen Patreon-Artikel. (dr)
[Meldung: 26. Aug. 2023, 21:53] [Kommentare: 31 - 01. Sep. 2023, 22:45]
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