Add missing softfloat helpers.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2518 c046a42c-6fe2-441c-8c8c-71466251a162

4 files changed, 158 insertions, 0 deletions

diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c
index 7b28a4c..c629926 100644
--- a/fpu/softfloat-native.c
+++ b/fpu/softfloat-native.c
@@ -59,11 +59,21 @@ float32 int32_to_float32(int v STATUS_PARAM)
     return (float32)v;
 }
 
+float32 uint32_to_float32(unsigned int v STATUS_PARAM)
+{
+    return (float32)v;
+}
+
 float64 int32_to_float64(int v STATUS_PARAM)
 {
     return (float64)v;
 }
 
+float64 uint32_to_float64(unsigned int v STATUS_PARAM)
+{
+    return (float64)v;
+}
+
 #ifdef FLOATX80
 floatx80 int32_to_floatx80(int v STATUS_PARAM)
 {
@@ -74,10 +84,18 @@ float32 int64_to_float32( int64_t v STATUS_PARAM)
 {
     return (float32)v;
 }
+float32 uint64_to_float32( uint64_t v STATUS_PARAM)
+{
+    return (float32)v;
+}
 float64 int64_to_float64( int64_t v STATUS_PARAM)
 {
     return (float64)v;
 }
+float64 uint64_to_float64( uint64_t v STATUS_PARAM)
+{
+    return (float64)v;
+}
 #ifdef FLOATX80
 floatx80 int64_to_floatx80( int64_t v STATUS_PARAM)
 {
@@ -132,6 +150,37 @@ floatx80 float32_to_floatx80( float32 a STATUS_PARAM)
 }
 #endif
 
+unsigned int float32_to_uint32( float32 a STATUS_PARAM)
+{
+    int64_t v;
+    unsigned int res;
+
+    v = llrintf(a);
+    if (v < 0) {
+        res = 0;
+    } else if (v > 0xffffffff) {
+        res = 0xffffffff;
+    } else {
+        res = v;
+    }
+    return res;
+}
+unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM)
+{
+    int64_t v;
+    unsigned int res;
+
+    v = (int64_t)a;
+    if (v < 0) {
+        res = 0;
+    } else if (v > 0xffffffff) {
+        res = 0xffffffff;
+    } else {
+        res = v;
+    }
+    return res;
+}
+
 /*----------------------------------------------------------------------------
 | Software IEC/IEEE single-precision operations.
 *----------------------------------------------------------------------------*/
@@ -218,6 +267,53 @@ float128 float64_to_float128( float64 a STATUS_PARAM)
 }
 #endif
 
+unsigned int float64_to_uint32( float64 a STATUS_PARAM)
+{
+    int64_t v;
+    unsigned int res;
+
+    v = llrint(a);
+    if (v < 0) {
+        res = 0;
+    } else if (v > 0xffffffff) {
+        res = 0xffffffff;
+    } else {
+        res = v;
+    }
+    return res;
+}
+unsigned int float64_to_uint32_round_to_zero( float64 a STATUS_PARAM)
+{
+    int64_t v;
+    unsigned int res;
+
+    v = (int64_t)a;
+    if (v < 0) {
+        res = 0;
+    } else if (v > 0xffffffff) {
+        res = 0xffffffff;
+    } else {
+        res = v;
+    }
+    return res;
+}
+uint64_t float64_to_uint64 (float64 a STATUS_PARAM)
+{
+    int64_t v;
+
+    v = llrint(a + (float64)INT64_MIN);
+
+    return v - INT64_MIN;
+}
+uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM)
+{
+    int64_t v;
+
+    v = (int64_t)(a + (float64)INT64_MIN);
+
+    return v - INT64_MIN;
+}
+
 /*----------------------------------------------------------------------------
 | Software IEC/IEEE double-precision operations.
 *----------------------------------------------------------------------------*/
diff --git a/fpu/softfloat-native.h b/fpu/softfloat-native.h
index 8c27708..8a0d1ad 100644
--- a/fpu/softfloat-native.h
+++ b/fpu/softfloat-native.h
@@ -99,7 +99,9 @@ void set_floatx80_rounding_precision(int val STATUS_PARAM);
 | Software IEC/IEEE integer-to-floating-point conversion routines.
 *----------------------------------------------------------------------------*/
 float32 int32_to_float32( int STATUS_PARAM);
+float32 uint32_to_float32( unsigned int STATUS_PARAM);
 float64 int32_to_float64( int STATUS_PARAM);
+float64 uint32_to_float64( unsigned int STATUS_PARAM);
 #ifdef FLOATX80
 floatx80 int32_to_floatx80( int STATUS_PARAM);
 #endif
@@ -107,7 +109,9 @@ floatx80 int32_to_floatx80( int STATUS_PARAM);
 float128 int32_to_float128( int STATUS_PARAM);
 #endif
 float32 int64_to_float32( int64_t STATUS_PARAM);
+float32 uint64_to_float32( uint64_t STATUS_PARAM);
 float64 int64_to_float64( int64_t STATUS_PARAM);
+float64 uint64_to_float64( uint64_t v STATUS_PARAM);
 #ifdef FLOATX80
 floatx80 int64_to_floatx80( int64_t STATUS_PARAM);
 #endif
@@ -120,6 +124,8 @@ float128 int64_to_float128( int64_t STATUS_PARAM);
 *----------------------------------------------------------------------------*/
 int float32_to_int32( float32  STATUS_PARAM);
 int float32_to_int32_round_to_zero( float32  STATUS_PARAM);
+unsigned int float32_to_uint32( float32 a STATUS_PARAM);
+unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM);
 int64_t float32_to_int64( float32  STATUS_PARAM);
 int64_t float32_to_int64_round_to_zero( float32  STATUS_PARAM);
 float64 float32_to_float64( float32  STATUS_PARAM);
@@ -200,8 +206,12 @@ INLINE float32 float32_chs(float32 a)
 *----------------------------------------------------------------------------*/
 int float64_to_int32( float64 STATUS_PARAM );
 int float64_to_int32_round_to_zero( float64 STATUS_PARAM );
+unsigned int float64_to_uint32( float64 STATUS_PARAM );
+unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
 int64_t float64_to_int64( float64 STATUS_PARAM );
 int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );
+uint64_t float64_to_uint64( float64 STATUS_PARAM );
+uint64_t float64_to_uint64_round_to_zero( float64 STATUS_PARAM );
 float32 float64_to_float32( float64 STATUS_PARAM );
 #ifdef FLOATX80
 floatx80 float64_to_floatx80( float64 STATUS_PARAM );
diff --git a/fpu/softfloat.c b/fpu/softfloat.c
index 5dbfa81..52e2db1 100644
--- a/fpu/softfloat.c
+++ b/fpu/softfloat.c
@@ -1164,6 +1164,27 @@ float32 int64_to_float32( int64 a STATUS_PARAM )
 
 }
 
+float64 uint64_to_float32( uint64 a STATUS_PARAM )
+{
+    int8 shiftCount;
+
+    if ( a == 0 ) return 0;
+    shiftCount = countLeadingZeros64( a ) - 40;
+    if ( 0 <= shiftCount ) {
+        return packFloat32( 1 > 0, 0x95 - shiftCount, a<<shiftCount );
+    }
+    else {
+        shiftCount += 7;
+        if ( shiftCount < 0 ) {
+            shift64RightJamming( a, - shiftCount, &a );
+        }
+        else {
+            a <<= shiftCount;
+        }
+        return roundAndPackFloat32( 1 > 0, 0x9C - shiftCount, a STATUS_VAR );
+    }
+}
+
 /*----------------------------------------------------------------------------
 | Returns the result of converting the 64-bit two's complement integer `a'
 | to the double-precision floating-point format.  The conversion is performed
@@ -1183,6 +1204,13 @@ float64 int64_to_float64( int64 a STATUS_PARAM )
 
 }
 
+float64 uint64_to_float64( uint64 a STATUS_PARAM )
+{
+    if ( a == 0 ) return 0;
+    return normalizeRoundAndPackFloat64( 0, 0x43C, a STATUS_VAR );
+
+}
+
 #ifdef FLOATX80
 
 /*----------------------------------------------------------------------------
@@ -5282,6 +5310,26 @@ unsigned int float64_to_uint32_round_to_zero( float64 a STATUS_PARAM )
     return res;
 }
 
+uint64_t float64_to_uint64 (float64 a STATUS_PARAM)
+{
+    int64_t v;
+
+    v = int64_to_float64(INT64_MIN STATUS_VAR);
+    v = float64_to_int64((a + v) STATUS_VAR);
+
+    return v - INT64_MIN;
+}
+
+uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM)
+{
+    int64_t v;
+
+    v = int64_to_float64(INT64_MIN STATUS_VAR);
+    v = float64_to_int64_round_to_zero((a + v) STATUS_VAR);
+
+    return v - INT64_MIN;
+}
+
 #define COMPARE(s, nan_exp)                                                  \
 INLINE int float ## s ## _compare_internal( float ## s a, float ## s b,      \
                                       int is_quiet STATUS_PARAM )            \
diff --git a/fpu/softfloat.h b/fpu/softfloat.h
index a326af8..00ec56b 100644
--- a/fpu/softfloat.h
+++ b/fpu/softfloat.h
@@ -193,7 +193,9 @@ floatx80 int32_to_floatx80( int STATUS_PARAM );
 float128 int32_to_float128( int STATUS_PARAM );
 #endif
 float32 int64_to_float32( int64_t STATUS_PARAM );
+float32 uint64_to_float32( uint64_t STATUS_PARAM );
 float64 int64_to_float64( int64_t STATUS_PARAM );
+float64 uint64_to_float64( uint64_t STATUS_PARAM );
 #ifdef FLOATX80
 floatx80 int64_to_floatx80( int64_t STATUS_PARAM );
 #endif
@@ -258,6 +260,8 @@ unsigned int float64_to_uint32( float64 STATUS_PARAM );
 unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
 int64_t float64_to_int64( float64 STATUS_PARAM );
 int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );
+uint64_t float64_to_uint64 (float64 a STATUS_PARAM);
+uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM);
 float32 float64_to_float32( float64 STATUS_PARAM );
 #ifdef FLOATX80
 floatx80 float64_to_floatx80( float64 STATUS_PARAM );