Changeset 36170 in vbox for trunk/src/recompiler/fpu/softfloat-native.c

Timestamp:

Mar 4, 2011 12:49:02 PM (14 years ago)

Author:

vboxsync

Message:

rem: synced up to ​svn://svn.savannah.nongnu.org/qemu/trunk@6686 (repo UUID c046a42c-6fe2-441c-8c8c-71466251a162).

File:

• trunk/src/recompiler/fpu/softfloat-native.c (modified) (9 diffs)

trunk/src/recompiler/fpu/softfloat-native.c

@@ -61 +61 @@
 #endif
 
-#if defined(__powerpc__)
+#if defined(_ARCH_PPC)
 
 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
-double qemu_rint(double x)
+static double qemu_rint(double x)
 {
     double y = 4503599627370496.0;
@@ -230 +230 @@
 {
     if (a < b) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (a > b) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
@@ -242 +242 @@
 {
     if (isless(a, b)) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (isgreater(a, b)) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
@@ -258 +258 @@
     a = u.i;
     return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF );
+}
+
+int float32_is_nan( float32 a1 )
+{
+    float32u u;
+    uint64_t a;
+    u.f = a1;
+    a = u.i;
+    return ( 0xFF800000 < ( a<<1 ) );
 }
 
@@ -392 +401 @@
 {
     if (a < b) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (a > b) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
@@ -404 +413 @@
 {
     if (isless(a, b)) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (isgreater(a, b)) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
@@ -432 +441 @@
     a = u.i;
 
-    return ( LIT64( 0xFFE0000000000000 ) < (bits64) ( a<<1 ) );
+    return ( LIT64( 0xFFF0000000000000 ) < (bits64) ( a<<1 ) );
 
 }
@@ -484 +493 @@
 {
     if (a < b) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (a > b) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
@@ -496 +505 @@
 {
     if (isless(a, b)) {
-        return -1;
+        return float_relation_less;
     } else if (a == b) {
-        return 0;
+        return float_relation_equal;
     } else if (isgreater(a, b)) {
-        return 1;
-    } else {
-        return 2;
+        return float_relation_greater;
+    } else {
+        return float_relation_unordered;
     }
 }
 int floatx80_is_signaling_nan( floatx80 a1)
+{
+    floatx80u u;
+    uint64_t aLow;
+    u.f = a1;
+
+    aLow = u.i.low & ~ LIT64( 0x4000000000000000 );
+    return
+           ( ( u.i.high & 0x7FFF ) == 0x7FFF )
+        && (bits64) ( aLow<<1 )
+        && ( u.i.low == aLow );
+}
+
+int floatx80_is_nan( floatx80 a1 )
 {
     floatx80u u;