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Re: [Qemu-devel] [PATCH] softfloat: float32_to_float16() should do inexa
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH] softfloat: float32_to_float16() should do inexact instead of underflow for rounding case |
Date: |
Wed, 25 Apr 2012 17:15:34 +0100 |
On 25 April 2012 17:11, Alexey Starikovskiy <address@hidden> wrote:
> See A2.7.7
> Floating-point exceptions
>
> Inexact. The flag is set to 1 if the result of an operation is not
> equivalent to the value that
> would be produced if the operation were performed with unbounded
> precision and exponent
> range.
You can't justify a patch to the generic IEEE floating point
code with a quotation from the ARM ARM. (And don't quote documents
without saying what document you're quoting!)
Can you provide a test case for an instruction or operation which
generates the wrong results?
-- PMm