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Re: [Qemu-devel] [PATCH 20/26] target-xtensa: implement extended L32R
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 20/26] target-xtensa: implement extended L32R |
Date: |
Fri, 20 May 2011 08:30:24 -0700 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc14 Thunderbird/3.1.10 |
On 05/20/2011 12:14 AM, Max Filippov wrote:
> As far as I can see LITBASE usage pattern is that it is set up once
> in early initialization and is never changed after.
That's probably true on a per-program basis. I.e. for semi-hosting or userland
emulation, hard-coding litbase into the TB could make sense.
However, for full system emulation, with kernel and userland et al, I would
expect that litbase would tend to be set per-application. At which point it
would almost certainly be more efficient to read the value at runtime.
r~
- [Qemu-devel] [PATCH 17/26] target-xtensa: implement RST2 group (32 bit mul/div/rem), (continued)
[Qemu-devel] [PATCH 20/26] target-xtensa: implement extended L32R, Max Filippov, 2011/05/17
[Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Max Filippov, 2011/05/17
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Richard Henderson, 2011/05/19
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Max Filippov, 2011/05/22
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Richard Henderson, 2011/05/22
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Max Filippov, 2011/05/22
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Richard Henderson, 2011/05/23
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Max Filippov, 2011/05/23
- Re: [Qemu-devel] [PATCH 21/26] target-xtensa: implement unaligned exception option, Richard Henderson, 2011/05/24
[Qemu-devel] [PATCH 22/26] target-xtensa: implement SIMCALL, Max Filippov, 2011/05/17