From: Mike Frysinger <vapier@gentoo.org>
To: Dragan Mladjenovic <Dragan.Mladjenovic@syrmia.com>,
gdb-patches@sourceware.org,
"Maciej W . Rozycki" <macro@orcam.me.uk>,
Chao-ying Fu <cfu@wavecomp.com>,
Faraz Shahbazker <fshahbazker@wavecomp.com>
Subject: Re: [PATCH v3 1/4] sim: Allow toggling of quiet NaN-bit semantics
Date: Wed, 12 Jan 2022 05:44:58 -0500 [thread overview]
Message-ID: <Yd6xKiZokzlXS5z4@vapier> (raw)
In-Reply-To: <Yd6oC7lCe7lsdItb@vapier>
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On 12 Jan 2022 05:06, Mike Frysinger via Gdb-patches wrote:
> On 11 Jan 2022 22:24, Dragan Mladjenovic wrote:
> > --- a/sim/common/sim-fpu.h
> > +++ b/sim/common/sim-fpu.h
> >
> > +/* Toggle quiet NaN semantics. */
> >
> > +extern bool sim_fpu_quiet_nan_inverted;
>
> please avoid global variables. this should be part of sim_fpu state instead.
hrm, that doesn't work as sim_fpu is an operand ... i was thinking it was the
FPU state. all the sim-fpu APIs today have been assuming stateless FPU which
doesn't really work after this (and the other changes you're posting).
please add a new sim_fpu_state structure that this would be a member of. that
can be a global variable for now, but leave a TODO comment about moving it into
the SIM_CPU structure.
-mike
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next prev parent reply other threads:[~2022-01-12 10:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 21:24 [PATCH v3 0/4] sim: Add support for MIPS32/64 revision 6 Dragan Mladjenovic
2022-01-11 21:24 ` [PATCH v3 1/4] sim: Allow toggling of quiet NaN-bit semantics Dragan Mladjenovic
2022-01-12 10:06 ` Mike Frysinger
2022-01-12 10:44 ` Mike Frysinger [this message]
2022-01-11 21:24 ` [PATCH v3 2/4] sim: Factor out NaN handling in floating point operations Dragan Mladjenovic
2022-01-12 10:22 ` Mike Frysinger
2022-01-11 21:24 ` [PATCH v3 3/4] sim: Add partial support for IEEE 754-2008 Dragan Mladjenovic
2022-01-12 10:47 ` Mike Frysinger
2022-01-11 21:24 ` [PATCH v3 4/4] sim: mips: Add simulator support for mips32r6/mips64r6 Dragan Mladjenovic
2022-01-12 10:57 ` Mike Frysinger
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