From: Richard Henderson <rth@twiddle.net>
To: Blue Swirl <blauwirbel@gmail.com>
Cc: qemu-devel@nongnu.org, aurelien@aurel32.net
Subject: Re: [Qemu-devel] [PATCH 1/2] tcg: Add TYPE parameter to tcg_out_mov.
Date: Fri, 04 Jun 2010 12:34:15 -0700 [thread overview]
Message-ID: <4C095537.50108@twiddle.net> (raw)
In-Reply-To: <AANLkTik8JClHDAYIihsGubyWK0uNVinfWEvwYet8sl6E@mail.gmail.com>
On 06/04/2010 12:19 PM, Blue Swirl wrote:
> Sparc32plus would match, though the ABI does not guarantee that higher
> 32 bits are preserved.
Actually, it does for %g and %o registers. See section 2.1.1.
I've thought before about how to adjust the __sparcv8plus__ TCG
to use full 64-bit registers and operations when required, but
have not yet gotten around to it.
All of sparc, mips, ppc, and s390 have a mode with 32-bit pointers
running on a machine with 64-bit registers and operations available.
Unfortunately the hppa linux kernel doesn't save the full 64-bit
register on interrupt, so we're strictly limited to pa1.1 there,
even when running on a pa2 machine.
Something for the future...
r~
next prev parent reply other threads:[~2010-06-04 19:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-03 0:26 [Qemu-devel] [PATCH 0/2] tcg cleanups, part 4 Richard Henderson
2010-06-03 0:26 ` [Qemu-devel] [PATCH 1/2] tcg: Add TYPE parameter to tcg_out_mov Richard Henderson
2010-06-04 19:19 ` Blue Swirl
2010-06-04 19:34 ` Richard Henderson [this message]
2010-06-03 0:26 ` [Qemu-devel] [PATCH 2/2] tcg: Make some tcg-target.c routines static Richard Henderson
2010-06-03 9:23 ` [Qemu-devel] [PATCH 0/2] tcg cleanups, part 4 malc
2010-06-04 0:35 ` [Qemu-devel] [PATCH 0/2] tcg-i386: merge 64-bit, guest_base improvement Richard Henderson
2010-06-04 0:35 ` [Qemu-devel] [PATCH 1/2] tcg-i386: Merge 64-bit generation Richard Henderson
2010-06-09 22:18 ` Aurelien Jarno
2010-06-04 0:35 ` [Qemu-devel] [PATCH 2/2] tcg-i386: Use segment registers to implement GUEST_BASE Richard Henderson
2010-06-04 6:35 ` Alexander Graf
2010-06-07 19:45 ` Richard Henderson
2010-06-09 9:42 ` [Qemu-devel] [PATCH 0/2] tcg cleanups, part 4 Aurelien Jarno
-- strict thread matches above, loose matches on Subject: below --
2010-05-03 23:30 [Qemu-devel] [PATCH 0/2] two tcg improvements Richard Henderson
2010-05-03 23:30 ` [Qemu-devel] [PATCH 1/2] tcg: Add TYPE parameter to tcg_out_mov Richard Henderson
2010-05-28 18:21 ` Aurelien Jarno
2010-05-28 21:35 ` Richard Henderson
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