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Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions |
Date: |
Wed, 25 Jun 2014 18:41:35 +0100 |
On 25 June 2014 15:26, Al Viro <address@hidden> wrote:
> Hmm... On alpha it's generated only by the following: CVTTQ, CVTGQ,
> CVTQL. I.e. conversions to integer formats that can be held in FPU
> registers (double -> s64, VAX double -> s64 and s64 -> s32). Does
> softfloat even have anything similar?
Well, VAX doubles are a bit out of scope for an IEEE emulation
library :-)
> As it is, it's all in alpha-specific code;
It does sound like that's the best place for it. In that case, you
don't want to add a flag to the softfloat float_flags -- they are
specifically for indicating softfloat's status/exceptions. Flags
handled purely in CPU-specific code should be stored in the
CPU specific state struct somewhere.
thanks
-- PMM
- [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Richard Henderson, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Richard Henderson, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Richard Henderson, 2014/06/24
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/25
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Peter Maydell, 2014/06/25
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/25
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions,
Peter Maydell <=
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/26
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Richard Henderson, 2014/06/30
- Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Al Viro, 2014/06/30
Re: [Qemu-devel] [RFC] alpha qemu arithmetic exceptions, Richard Henderson, 2014/06/24