From b109f9f867a793b66217d43ede10c7a47242e270 Mon Sep 17 00:00:00 2001
From: bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 20 Mar 2005 10:33:58 +0000
Subject: [PATCH] more native FPU comparison functions - native FPU remainder

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1339 c046a42c-6fe2-441c-8c8c-71466251a162
---
 fpu/softfloat-native.c | 86 ++++++++++++++++++++++++++++++++++++++++++
 fpu/softfloat-native.h | 28 ++++++++++++--
 2 files changed, 110 insertions(+), 4 deletions(-)

diff --git a/fpu/softfloat-native.c b/fpu/softfloat-native.c
index 8259a7c27c..89c0842af5 100644
--- a/fpu/softfloat-native.c
+++ b/fpu/softfloat-native.c
@@ -120,10 +120,39 @@ float32 float32_round_to_int( float32 a STATUS_PARAM)
     return rintf(a);
 }
 
+float32 float32_rem( float32 a, float32 b STATUS_PARAM)
+{
+    return remainderf(a, b);
+}
+
 float32 float32_sqrt( float32 a STATUS_PARAM)
 {
     return sqrtf(a);
 }
+char float32_compare( float32 a, float32 b STATUS_PARAM )
+{
+    if (a < b) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (a > b) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
+char float32_compare_quiet( float32 a, float32 b STATUS_PARAM )
+{
+    if (isless(a, b)) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (isgreater(a, b)) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
 char float32_is_signaling_nan( float32 a1)
 {
     float32u u;
@@ -195,10 +224,39 @@ float64 float64_round_to_int( float64 a STATUS_PARAM )
 #endif
 }
 
+float64 float64_rem( float64 a, float64 b STATUS_PARAM)
+{
+    return remainder(a, b);
+}
+
 float64 float64_sqrt( float64 a STATUS_PARAM)
 {
     return sqrt(a);
 }
+char float64_compare( float64 a, float64 b STATUS_PARAM )
+{
+    if (a < b) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (a > b) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
+char float64_compare_quiet( float64 a, float64 b STATUS_PARAM )
+{
+    if (isless(a, b)) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (isgreater(a, b)) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
 char float64_is_signaling_nan( float64 a1)
 {
     float64u u;
@@ -248,10 +306,38 @@ floatx80 floatx80_round_to_int( floatx80 a STATUS_PARAM)
 {
     return rintl(a);
 }
+floatx80 floatx80_rem( floatx80 a, floatx80 b STATUS_PARAM)
+{
+    return remainderl(a, b);
+}
 floatx80 floatx80_sqrt( floatx80 a STATUS_PARAM)
 {
     return sqrtl(a);
 }
+char floatx80_compare( floatx80 a, floatx80 b STATUS_PARAM )
+{
+    if (a < b) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (a > b) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
+char floatx80_compare_quiet( floatx80 a, floatx80 b STATUS_PARAM )
+{
+    if (isless(a, b)) {
+        return -1;
+    } else if (a == b) {
+        return 0;
+    } else if (isgreater(a, b)) {
+        return 1;
+    } else {
+        return 2;
+    }
+}
 char floatx80_is_signaling_nan( floatx80 a1)
 {
     floatx80u u;
diff --git a/fpu/softfloat-native.h b/fpu/softfloat-native.h
index 709df51bcf..9017ea582f 100644
--- a/fpu/softfloat-native.h
+++ b/fpu/softfloat-native.h
@@ -127,7 +127,6 @@ float32 float32_rem( float32, float32  STATUS_PARAM);
 float32 float32_sqrt( float32  STATUS_PARAM);
 INLINE char float32_eq( float32 a, float32 b STATUS_PARAM)
 {
-    /* XXX: incorrect because it can raise an exception */
     return a == b;
 }
 INLINE char float32_le( float32 a, float32 b STATUS_PARAM)
@@ -140,7 +139,7 @@ INLINE char float32_lt( float32 a, float32 b STATUS_PARAM)
 }
 INLINE char float32_eq_signaling( float32 a, float32 b STATUS_PARAM)
 {
-    return a == b;
+    return a <= b && a >= b;
 }
 INLINE char float32_le_quiet( float32 a, float32 b STATUS_PARAM)
 {
@@ -150,6 +149,13 @@ INLINE char float32_lt_quiet( float32 a, float32 b STATUS_PARAM)
 {
     return isless(a, b);
 }
+INLINE char float32_unordered( float32 a, float32 b STATUS_PARAM)
+{
+    return isunordered(a, b);
+
+}
+char float32_compare( float32, float32 STATUS_PARAM );
+char float32_compare_quiet( float32, float32 STATUS_PARAM );
 char float32_is_signaling_nan( float32 );
 
 INLINE float32 float32_abs(float32 a)
@@ -213,7 +219,7 @@ INLINE char float64_lt( float64 a, float64 b STATUS_PARAM)
 }
 INLINE char float64_eq_signaling( float64 a, float64 b STATUS_PARAM)
 {
-    return a == b;
+    return a <= b && a >= b;
 }
 INLINE char float64_le_quiet( float64 a, float64 b STATUS_PARAM)
 {
@@ -224,6 +230,13 @@ INLINE char float64_lt_quiet( float64 a, float64 b STATUS_PARAM)
     return isless(a, b);
 
 }
+INLINE char float64_unordered( float64 a, float64 b STATUS_PARAM)
+{
+    return isunordered(a, b);
+
+}
+char float64_compare( float64, float64 STATUS_PARAM );
+char float64_compare_quiet( float64, float64 STATUS_PARAM );
 char float64_is_signaling_nan( float64 );
 
 INLINE float64 float64_abs(float64 a)
@@ -287,7 +300,7 @@ INLINE char floatx80_lt( floatx80 a, floatx80 b STATUS_PARAM)
 }
 INLINE char floatx80_eq_signaling( floatx80 a, floatx80 b STATUS_PARAM)
 {
-    return a == b;
+    return a <= b && a >= b;
 }
 INLINE char floatx80_le_quiet( floatx80 a, floatx80 b STATUS_PARAM)
 {
@@ -298,6 +311,13 @@ INLINE char floatx80_lt_quiet( floatx80 a, floatx80 b STATUS_PARAM)
     return isless(a, b);
 
 }
+INLINE char floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM)
+{
+    return isunordered(a, b);
+
+}
+char floatx80_compare( floatx80, floatx80 STATUS_PARAM );
+char floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
 char floatx80_is_signaling_nan( floatx80 );
 
 INLINE floatx80 floatx80_abs(floatx80 a)