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[6/7] softfloat: Add float128_to_uint32()

Message ID 1486711391-12247-7-git-send-email-bharata@linux.vnet.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bharata B Rao Feb. 10, 2017, 7:23 a.m. UTC 
float128_to_uint32() is needed by target/s390.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Cornelia Huck <cornelia.huck@de.ibm.com>
---
 fpu/softfloat.c         | 17 +++++++++++++++++
 include/fpu/softfloat.h |  1 +
 2 files changed, 18 insertions(+)
diff mbox

Patch

diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 485a006..ef6f2d0 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -6186,6 +6186,23 @@  uint64_t float128_to_uint64_round_to_zero(float128 a, float_status *status)
     return v;
 }
 
+uint32_t float128_to_uint32(float128 a, float_status *status)
+{
+    uint64_t v;
+    uint32_t res;
+    int old_exc_flags = get_float_exception_flags(status);
+
+    v = float128_to_uint64(a, status);
+    if (v > 0xffffffff) {
+        res = 0xffffffff;
+    } else {
+        return v;
+    }
+    set_float_exception_flags(old_exc_flags, status);
+    float_raise(float_flag_invalid, status);
+    return res;
+}
+
 /*----------------------------------------------------------------------------
 | Returns the result of converting the quadruple-precision floating-point
 | value `a' to the 32-bit unsigned integer format.  The conversion
diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h
index f1288ef..a57a027 100644
--- a/include/fpu/softfloat.h
+++ b/include/fpu/softfloat.h
@@ -716,6 +716,7 @@  int64_t float128_to_int64(float128, float_status *status);
 int64_t float128_to_int64_round_to_zero(float128, float_status *status);
 uint64_t float128_to_uint64(float128, float_status *status);
 uint64_t float128_to_uint64_round_to_zero(float128, float_status *status);
+uint32_t float128_to_uint32(float128, float_status *status);
 uint32_t float128_to_uint32_round_to_zero(float128, float_status *status);
 float32 float128_to_float32(float128, float_status *status);
 float64 float128_to_float64(float128, float_status *status);