18.Oct.2023
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Motorola68k emulation: Emu68 v1.0 Release Candidate 2
A month ago, Developer Michal Schulz had released Release Candidate 1 of version 1.0 of his Motorola68K emulation Emu68 for the ARM architecture, focusing on the PiStorm and PiStorm32lite (amiga-news.de reported). Emu68 1.0 Release Candidate 2 contains all fixes from RC1. Additionally it contains two changes improving the support for old games and demos massively:
Updated instruction cache
The instruction cache used for translation of m68k to aarch64 code as well as to verify already translated code has been improved. The writes to chip memory automatically invalidate it, there are less flushes of the instruction cache during operation of Emu68.
Slow DBF
A special hack is added to make DBF busy loops operating with reasonable speed. Until now such kind of loops was way to fast on Emu68 and this rendered many old games or demos unusable or misbehaving. The special handling of DBF busy loops can be enabled in cmdline.txt file by adding a dbf_slowdown keyword, or during operation of Emu68 using the EmuControl tool.
The developer provides more detailed information on the changes in his new Patreon post. (dr)
[News message: 18. Oct. 2023, 06:35] [Comments: 0]
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