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Re: [Qemu-devel] [PATCH v2 03/10] target-arm: allow modifying vfp fpexc
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From: |
Laurent Desnogues |
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Subject: |
Re: [Qemu-devel] [PATCH v2 03/10] target-arm: allow modifying vfp fpexc en bit only |
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Date: |
Mon, 26 Oct 2009 10:08:57 +0100 |
On Mon, Oct 26, 2009 at 8:32 AM, <address@hidden> wrote:
[...]
>>
>> Shouldn't writes to FPEXC from gdb be protected in the same
>> way? Except for that I agree with your patch.
>
> Please correct me if I'm wrong but it seems to me that the code in
> gdbstub.c never writes anything to the VFP registers, at least it
> seems to me the code in cpu_gdb_write_register and
> cpu_gdb_read_register ignore floating point registers.
There's code in helper.c that implements writes to coprocessor
registers. Look for vfp_gdb_set_reg which is registered by
cpu_arm_init.
Laurent
[Qemu-devel] [PATCH v2 07/10] target-arm: optimize thumb2 load/store multiple ops, juha . riihimaki, 2009/10/24
[Qemu-devel] [PATCH v2 09/10] target-arm: optimize neon vld/vst ops, juha . riihimaki, 2009/10/24