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-rw-r--r--target/arm/helper-a64.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c
index 4fd28fdf48..722fff2349 100644
--- a/target/arm/helper-a64.c
+++ b/target/arm/helper-a64.c
@@ -767,3 +767,35 @@ float16 HELPER(advsimd_rinth)(float16 x, void *fp_status)
return ret;
}
+
+/*
+ * Half-precision floating point conversion functions
+ *
+ * There are a multitude of conversion functions with various
+ * different rounding modes. This is dealt with by the calling code
+ * setting the mode appropriately before calling the helper.
+ */
+
+uint32_t HELPER(advsimd_f16tosinth)(float16 a, void *fpstp)
+{
+ float_status *fpst = fpstp;
+
+ /* Invalid if we are passed a NaN */
+ if (float16_is_any_nan(a)) {
+ float_raise(float_flag_invalid, fpst);
+ return 0;
+ }
+ return float16_to_int16(a, fpst);
+}
+
+uint32_t HELPER(advsimd_f16touinth)(float16 a, void *fpstp)
+{
+ float_status *fpst = fpstp;
+
+ /* Invalid if we are passed a NaN */
+ if (float16_is_any_nan(a)) {
+ float_raise(float_flag_invalid, fpst);
+ return 0;
+ }
+ return float16_to_uint16(a, fpst);
+}