10 October 2022, 12:55 | #21 | |
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See my post above yours.
Quote:
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10 October 2022, 13:32 | #22 |
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Musashi does not include an MMU emulation, and while I'm not sure whether it can do FPU, I doubt it supports extended precision. It's likely only double precision. This said, I recently run into a couple of FPU emulation bugs in eUAE, so I wouldn't really trust FPU emulation a lot. What I have seen there is that it failed also to support packed decimal, and NANs.
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10 October 2022, 14:32 | #23 |
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@Thomas
So what is m68mmu.h for? The header says: Code:
m68kmmu.h - PMMU implementation for 68851/68030/68040 By R. Belmont Copyright Nicola Salmoria and the MAME Team. Visit http://mamedev.org for licensing and usage restrictions. |
10 October 2022, 16:18 | #24 | |
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Quote:
New version of Musashi supports extended precision all right. It's using softfloat module and all... MMU is supported, probably not perfect. Never used it. |
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11 October 2022, 01:38 | #25 | |
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This idea is just to get around the fact the full fat 060 CPU's are very hard to get these days. I personally like to use a 'real' retro CPU for my retro computers otherwise you might as just use a pi (or MiSTer). My ideal modern A1200 motherboard would use an FPGA for the custom chips and use the original expansion bus to connect an original accelerator (no CPU on the motherboard) |
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11 October 2022, 20:53 | #26 |
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11 October 2022, 23:24 | #27 |
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13 October 2022, 20:54 | #28 |
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24 October 2022, 18:59 | #29 | |
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Quote:
The real problem (again) is the exception trap overhead killing the performance. The old mathieee.resource could be adapted to support such an interface without the exception trap overhead. But (again) there are still not many applications using the mathieee.libraries. |
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12 November 2022, 23:17 | #30 | |
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Where can I find this softfloat version of Quake? I couldn't even find a Duke3d softfloat version so I made one. Its in the zone. |
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13 November 2022, 18:11 | #31 |
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