From: Richard Henderson <rth@twiddle.net>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: Blue Swirl <blauwirbel@gmail.com>,
Peter Maydell <peter.maydell@linaro.org>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v3 08/10] target-xtensa: implement FP0 conversions
Date: Wed, 19 Sep 2012 14:59:39 -0700 [thread overview]
Message-ID: <505A404B.8050303@twiddle.net> (raw)
In-Reply-To: <1348014239-6233-9-git-send-email-jcmvbkbc@gmail.com>
On 09/18/2012 05:23 PM, Max Filippov wrote:
> +uint32_t HELPER(ftoi)(float32 v, uint32_t rounding_mode, uint32_t scale)
> +{
> + float_status fp_status = {0};
> +
> + set_float_rounding_mode(rounding_mode, &fp_status);
> + return float32_to_int32(
> + float32_scalbn(v, scale, &fp_status), &fp_status);
> +}
> +
> +uint32_t HELPER(ftoui)(float32 v, uint32_t rounding_mode, uint32_t scale)
> +{
> + float_status fp_status = {0};
> + float32 res;
> +
> + set_float_rounding_mode(rounding_mode, &fp_status);
> +
> + res = float32_scalbn(v, scale, &fp_status);
> +
> + if (float32_is_neg(v) && !float32_is_any_nan(v)) {
> + return float32_to_int32(res, &fp_status);
> + } else {
> + return float32_to_uint32(res, &fp_status);
> + }
> +}
Are you really intending to discard any exceptions raised here?
r~
next prev parent reply other threads:[~2012-09-19 21:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 0:23 [Qemu-devel] [PATCH v3 00/10] target-xtensa: implement FP coprocessor option Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 01/10] softfloat: make float_muladd_negate_* flags independent Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 02/10] softfloat: add NO_SIGNALING_NANS Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 03/10] target-xtensa: handle boolean option in overlays Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 04/10] target-xtensa: specialize softfloat NaN rules Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 05/10] target-xtensa: add FP registers Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 06/10] target-xtensa: implement LSCX and LSCI groups Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 07/10] target-xtensa: implement FP0 arithmetic Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 08/10] target-xtensa: implement FP0 conversions Max Filippov
2012-09-19 21:59 ` Richard Henderson [this message]
2012-09-19 22:47 ` Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 09/10] target-xtensa: implement FP1 group Max Filippov
2012-09-19 0:23 ` [Qemu-devel] [PATCH v3 10/10] target-xtensa: implement coprocessor context option Max Filippov
2012-09-22 18:00 ` [Qemu-devel] [PATCH v3 00/10] target-xtensa: implement FP coprocessor option Blue Swirl
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