Re: [hatari-devel] MegaSTE cache emulation issues |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] MegaSTE cache emulation issues
- From: Christian Zietz <czietz@xxxxxxx>
- Date: Sun, 29 Jun 2025 14:05:15 +0200
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Nicolas Pomarède schrieb:
That's strange, because M68000_BusError() will flush caches in the case
of the MegaSTE, I need to check this.
This might just a matter of the order in which things happen.
For example in this code path, I think (but please double check my
analysis!) that the cache flush in M68000_BusError() is called via
wait_cpu_cycle_write_megaste_16():
https://framagit.org/hatari/hatari/-/blob/v2.6.0/src/m68000.c?ref_type=tags#L1637
... whereas the cache update via MegaSTE_Cache_Write() only happens
*after* the flush.
Regards
Christian
--
Christian Zietz - CHZ-Soft - czietz@xxxxxxx
WWW: https://www.chzsoft.de/
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