| Re: [hatari-devel] Hatari FPU support (was: macOS : FPU using EmuTOS) |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Hatari FPU support (was: macOS : FPU using EmuTOS)
- From: Christian Zietz <czietz@xxxxxxx>
- Date: Sun, 6 Dec 2020 21:47:21 +0100
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Eero Tamminen schrieb:
Looking back to old discussions on 68000 FPU
support, they apparently work very differently
and would be hard to emulate & undocumented.
As the 68000 has no built-in coprocessor interface, the low-level
registers of the FPU (not to be confused with the actual floating point
registers!) are memory mapped. I've written a small tutorial:
https://docs.dev-docs.org/htm/search.php?find=Atari+SFP-004+by+example
.... but I agree that it would require big changes to Hatari to emulate this.
Regards
Christian
--
Christian Zietz - CHZ-Soft - czietz@xxxxxxx
WWW: https://www.chzsoft.de/
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