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| author | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-06-19 21:45:58 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-06-19 21:45:58 -0700 |
| commit | 1e163c715550e20e239976a22e00869884713e54 (patch) | |
| tree | dbcf7b10e35421c72758df098057014fef7ffff7 /softfloat/i64_to_f32.c | |
| parent | 0edaecc54329048eb91ad6a45338265ef1a4569c (diff) | |
| download | riscv-pk-1e163c715550e20e239976a22e00869884713e54.zip riscv-pk-1e163c715550e20e239976a22e00869884713e54.tar.gz riscv-pk-1e163c715550e20e239976a22e00869884713e54.tar.bz2 | |
fixed build after repo split
Diffstat (limited to 'softfloat/i64_to_f32.c')
| -rwxr-xr-x | softfloat/i64_to_f32.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/softfloat/i64_to_f32.c b/softfloat/i64_to_f32.c new file mode 100755 index 0000000..4fecbb9 --- /dev/null +++ b/softfloat/i64_to_f32.c @@ -0,0 +1,36 @@ +
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "primitives.h"
+#include "internals.h"
+#include "softfloat.h"
+
+float32_t i64_to_f32( int_fast64_t a )
+{
+ bool sign;
+ uint_fast64_t absA;
+ int shiftCount;
+ union ui32_f32 u;
+ uint_fast32_t sig;
+
+ sign = ( a < 0 );
+ absA = sign ? - (uint_fast64_t) a : a;
+ shiftCount = softfloat_countLeadingZeros64( absA ) - 40;
+ if ( 0 <= shiftCount ) {
+ u.ui =
+ a ? packToF32UI(
+ sign, 0x95 - shiftCount, (uint_fast32_t) absA<<shiftCount )
+ : 0;
+ return u.f;
+ } else {
+ shiftCount += 7;
+ sig =
+ ( shiftCount < 0 )
+ ? softfloat_shortShift64RightJam( absA, - shiftCount )
+ : (uint_fast32_t) absA<<shiftCount;
+ return softfloat_roundPackToF32( sign, 0x9C - shiftCount, sig );
+ }
+
+}
+
|