log: Change log_cpu_state[_mask]() argument to CPUState

[qemu.git] / fpu / softfloat.c

diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index b29256a8ebe3bb9aab7ac33f0b4fcd563ecebce0..7ba51b6f3c11bd08f1a41478afdf89d23bfcb4a3 100644 (file)
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -40,7 +40,7 @@ these four paragraphs for those parts of this code that are retained.
  */
 #include "config.h"
 
-#include "softfloat.h"
+#include "fpu/softfloat.h"
 
 /*----------------------------------------------------------------------------
 | Primitive arithmetic functions, including multi-word arithmetic, and
@@ -1238,7 +1238,7 @@ float32 uint64_to_float32( uint64 a STATUS_PARAM )
     if ( a == 0 ) return float32_zero;
     shiftCount = countLeadingZeros64( a ) - 40;
     if ( 0 <= shiftCount ) {
-        return packFloat32( 1 > 0, 0x95 - shiftCount, a<<shiftCount );
+        return packFloat32(0, 0x95 - shiftCount, a<<shiftCount);
     }
     else {
         shiftCount += 7;
@@ -1248,7 +1248,7 @@ float32 uint64_to_float32( uint64 a STATUS_PARAM )
         else {
             a <<= shiftCount;
         }
-        return roundAndPackFloat32( 1 > 0, 0x9C - shiftCount, a STATUS_VAR );
+        return roundAndPackFloat32(0, 0x9C - shiftCount, a STATUS_VAR);
     }
 }
 
@@ -1271,11 +1271,18 @@ float64 int64_to_float64( int64 a STATUS_PARAM )
 
 }
 
-float64 uint64_to_float64( uint64 a STATUS_PARAM )
+float64 uint64_to_float64(uint64 a STATUS_PARAM)
 {
-    if ( a == 0 ) return float64_zero;
-    return normalizeRoundAndPackFloat64( 0, 0x43C, a STATUS_VAR );
+    int exp =  0x43C;
 
+    if (a == 0) {
+        return float64_zero;
+    }
+    if ((int64_t)a < 0) {
+        shift64RightJamming(a, 1, &a);
+        exp += 1;
+    }
+    return normalizeRoundAndPackFloat64(0, exp, a STATUS_VAR);
 }
 
 /*----------------------------------------------------------------------------
@@ -1332,6 +1339,14 @@ float128 int64_to_float128( int64 a STATUS_PARAM )
 
 }
 
+float128 uint64_to_float128(uint64 a STATUS_PARAM)
+{
+    if (a == 0) {
+        return float128_zero;
+    }
+    return normalizeRoundAndPackFloat128(0, 0x406E, a, 0 STATUS_VAR);
+}
+
 /*----------------------------------------------------------------------------
 | Returns the result of converting the single-precision floating-point value
 | `a' to the 32-bit two's complement integer format.  The conversion is
@@ -2219,7 +2234,7 @@ float32 float32_muladd(float32 a, float32 b, float32 c, int flags STATUS_PARAM)
             }
         }
         /* Zero plus something non-zero : just return the something */
-        return make_float32(float32_val(c) ^ (signflip << 31));
+        return packFloat32(cSign ^ signflip, cExp, cSig);
     }
 
     if (aExp == 0) {
@@ -3007,7 +3022,7 @@ float32 float16_to_float32(float16 a, flag ieee STATUS_PARAM)
         if (aSig) {
             return commonNaNToFloat32(float16ToCommonNaN(a STATUS_VAR) STATUS_VAR);
         }
-        return packFloat32(aSign, 0xff, aSig << 13);
+        return packFloat32(aSign, 0xff, 0);
     }
     if (aExp == 0) {
         int8 shiftCount;
@@ -3772,7 +3787,7 @@ float64 float64_muladd(float64 a, float64 b, float64 c, int flags STATUS_PARAM)
             }
         }
         /* Zero plus something non-zero : just return the something */
-        return make_float64(float64_val(c) ^ ((uint64_t)signflip << 63));
+        return packFloat64(cSign ^ signflip, cExp, cSig);
     }
 
     if (aExp == 0) {
@@ -3883,9 +3898,15 @@ float64 float64_muladd(float64 a, float64 b, float64 c, int flags STATUS_PARAM)
             }
             zExp -= shiftcount;
         } else {
-            shiftcount = countLeadingZeros64(zSig1) - 1;
-            zSig0 = zSig1 << shiftcount;
-            zExp -= (shiftcount + 64);
+            shiftcount = countLeadingZeros64(zSig1);
+            if (shiftcount == 0) {
+                zSig0 = (zSig1 >> 1) | (zSig1 & 1);
+                zExp -= 63;
+            } else {
+                shiftcount--;
+                zSig0 = zSig1 << shiftcount;
+                zExp -= (shiftcount + 64);
+            }
         }
         return roundAndPackFloat64(zSign, zExp, zSig0 STATUS_VAR);
     }