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-rwxr-xr-xsoftfloat/f64_lt.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/softfloat/f64_lt.c b/softfloat/f64_lt.c
new file mode 100755
index 0000000..1b2f696
--- /dev/null
+++ b/softfloat/f64_lt.c
@@ -0,0 +1,35 @@
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "softfloat.h"
+
+bool f64_lt( float64_t a, float64_t b )
+{
+ union ui64_f64 uA;
+ uint_fast64_t uiA;
+ union ui64_f64 uB;
+ uint_fast64_t uiB;
+ bool signA, signB;
+
+ uA.f = a;
+ uiA = uA.ui;
+ uB.f = b;
+ uiB = uB.ui;
+ if (
+ ( ( expF64UI( uiA ) == 0x7FF ) && fracF64UI( uiA ) )
+ || ( ( expF64UI( uiB ) == 0x7FF ) && fracF64UI( uiB ) )
+ ) {
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ return false;
+ }
+ signA = signF64UI( uiA );
+ signB = signF64UI( uiB );
+ return
+ ( signA != signB )
+ ? signA && ( ( uiA | uiB ) & UINT64_C( 0x7FFFFFFFFFFFFFFF ) )
+ : ( uiA != uiB ) && ( signA ^ ( uiA < uiB ) );
+
+}
+