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Re: [Qemu-devel] [PATCH] tcg_temp_local_new should take no parameter
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] [PATCH] tcg_temp_local_new should take no parameter |
Date: |
Fri, 2 Jan 2009 04:36:01 +0000 |
User-agent: |
KMail/1.9.9 |
> The SH4 emulation seems to use 'plain' TCGv mostly, expects it to be
> 32-bits, and doesn't use the _tl macros, which I suppose is reasonable
> for a 32-bit only target.
>
> Alpha, ARM and M68K do something similar (so I'll try to follow the
> style that they use) but CRIS uses _tl a lot, which seems peculiar...
The distinction only really makes sense on CPUs that have both 32-bit and
64-bit variants. Chances are that if a 64-bit arm/m68k/cris cpu were to
exist then most of the code would need auditing anyway, so it's mostly a
matter of personal preference which is used.
Paul