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target-arm: Introduce float64_256 and float64_512 constants.

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These two constants will be used by helper functions such as recpe_f32
and rsqrte_f32.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Christophe Lyon 2011-02-21 17:38:46 +01:00 committed by Aurelien Jarno
parent c30fe7dfc4
commit 56bf4fe297
1 changed files with 5 additions and 0 deletions
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5
target-arm/helper.c
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@ -2687,6 +2687,11 @@ float32 HELPER(rsqrts_f32)(float32 a, float32 b, CPUState *env)
/* NEON helpers. */ /* NEON helpers. */
/* Constants 256 and 512 are used in some helpers; we avoid relying on
* int->float conversions at run-time. */
#define float64_256 make_float64(0x4070000000000000LL)
#define float64_512 make_float64(0x4080000000000000LL)
/* TODO: The architecture specifies the value that the estimate functions /* TODO: The architecture specifies the value that the estimate functions
should return. We return the exact reciprocal/root instead. */ should return. We return the exact reciprocal/root instead. */
float32 HELPER(recpe_f32)(float32 a, CPUState *env) float32 HELPER(recpe_f32)(float32 a, CPUState *env)