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From: | Richard Henderson |
Subject: | Re: [Qemu-ppc] [Qemu-devel] [PATCH] target-ppc: Add quad precision muladd instructions |
Date: | Thu, 16 Feb 2017 09:13:31 +1100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 02/15/2017 05:37 PM, Bharata B Rao wrote:
+ * + * TODO: When float128_muladd() becomes available, switch this + * implementation to use that instead of separate float128_mul() + * followed by float128_add().
Let's just do that, rather than add something that can't pass tests.You should be able to copy float64_muladd and, for the most part, s/128/256/ and s/64/128/. Other of the magic numbers, like the implicit bit and the exponent bias, you get from float128_mul.
r~
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