Re: [hatari-devel] Hatari WinUAE vs oldUAE information, and MiNT with MMU?

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On 14 Jan 2021 at 16:03, Thorsten Otto wrote:

> On Donnerstag, 14. Januar 2021 15:31:06 CET Christian Zietz wrote:
> > Do you know if an unimplemented FPU instruction on a 68060 causes a
> > dedicated trap?
> 
> The 060 can generate several of them, due to some instructions being removed:
> line-f trap, unimplemented effective address, and unimplemented integer 
> instruction at least (may be more, i have to check that).
> 
> Edit: the FPSP has entry points for:
> 
> 0x000:	_060_fpsp_snan
> 0x008:	_060_fpsp_operr
> 0x010:	_060_fpsp_ovfl
> 0x018:	_060_fpsp_unfl
> 0x020:	_060_fpsp_dz
> 0x028:	_060_fpsp_inex
> 0x030:	_060_fpsp_fline
> 0x038:	_060_fpsp_unsupp
> 0x040:	_060_fpsp_effadd
> 
> So i think the OS should catch at least those vectors. The first 6 could also
> be generated by other FPUs, IIRC, and the linef could just mean there is no 
> FPU at all.
> 
If we want to talk about EmuTOS, let's take this to the EMuTOS mailing list 
:-).

Roger




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