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Re: [Qemu-devel] [PATCH] temp-floating-point: Use float32_to_t and t_to_
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From: |
Peter Maydell |
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Subject: |
Re: [Qemu-devel] [PATCH] temp-floating-point: Use float32_to_t and t_to_float32 for the input register value |
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Date: |
Mon, 5 Oct 2015 12:59:19 +0100 |
On 5 October 2015 at 12:54, Chen Gang <address@hidden> wrote:
>> On 5 October 2015 at 12:21, Chen Gang <address@hidden> wrote:
>> Why is the helper for a single-precision operation taking a 64-bit
>> argument anyway?
>>
>
> Oh, the register are uint64_t, so I guess the input register value are
> 64-bit, too.
Usually for single precision the generated code is also working
with 32-bit values. What you have is not necessarily
wrong, but it is odd. I'd have to check the architecture
manual and the translate.c code to be sure.
thanks
-- PMM