1 files changed, 42 insertions, 0 deletions
diff --git a/softfloat/f32_to_ui64.c b/softfloat/f32_to_ui64.c
new file mode 100755
index 0000000..6cdcf74
--- /dev/null
+++ b/softfloat/f32_to_ui64.c
@@ -0,0 +1,42 @@
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "primitives.h"
+#include "internals.h"
+#include "softfloat.h"
+
+uint_fast64_t f32_to_ui64( float32_t a, int_fast8_t roundingMode, bool exact )
+{
+    union ui32_f32 uA;
+    uint_fast32_t uiA;
+    bool sign;
+    int_fast16_t exp;
+    uint_fast32_t sig;
+    int_fast16_t shiftCount;
+    uint_fast64_t sig64, extra;
+    struct uint64_extra sig64Extra;
+
+    uA.f = a;
+    uiA = uA.ui;
+    sign = signF32UI( uiA );
+    exp = expF32UI( uiA );
+    sig = fracF32UI( uiA );
+    shiftCount = 0xBE - exp;
+    if ( shiftCount < 0 ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+        return UINT64_C( 0xFFFFFFFFFFFFFFFF );
+    }
+    if ( exp ) sig |= 0x00800000;
+    sig64 = (uint_fast64_t) sig<<40;
+    extra = 0;
+    if ( shiftCount ) {
+        sig64Extra = softfloat_shift64ExtraRightJam( sig64, 0, shiftCount );
+        sig64 = sig64Extra.v;
+        extra = sig64Extra.extra;
+    }
+    return
+        softfloat_roundPackToUI64( sign, sig64, extra, roundingMode, exact );
+
+}
+