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| author | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2010-10-15 16:17:53 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@s144.Millennium.Berkeley.EDU> | 2010-10-15 16:17:53 -0700 |
| commit | ab928baadbfd3316988a3ad5b5d9b84693a8636f (patch) | |
| tree | b464ce729d53aeff072ed2c341b06194e9ea174b /softfloat/i64_to_f64.c | |
| parent | d3cb781e165427412b299b6034289b8458472790 (diff) | |
| download | spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.zip spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.tar.gz spike-ab928baadbfd3316988a3ad5b5d9b84693a8636f.tar.bz2 | |
[sim] made softfloat files C instead of C++
Diffstat (limited to 'softfloat/i64_to_f64.c')
| -rwxr-xr-x | softfloat/i64_to_f64.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/softfloat/i64_to_f64.c b/softfloat/i64_to_f64.c new file mode 100755 index 0000000..1add960 --- /dev/null +++ b/softfloat/i64_to_f64.c @@ -0,0 +1,21 @@ +
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "softfloat.h"
+
+float64_t i64_to_f64( int_fast64_t a )
+{
+ bool sign;
+ union ui64_f64 uZ;
+
+ sign = ( a < 0 );
+ if ( ! ( a & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) ) {
+ uZ.ui = sign ? packToF64UI( 1, 0x43E, 0 ) : 0;
+ return uZ.f;
+ }
+ return softfloat_normRoundPackToF64( sign, 0x43C, sign ? - a : a );
+
+}
+
|