Changes in uspace/lib/softint/generic/division.c [88d5c1e:9d58539] in mainline

File:

• uspace/lib/softint/generic/division.c (modified) (7 diffs)

uspace/lib/softint/generic/division.c

@@ -37 +37 @@
 #include <division.h>
 
-#define ABSVAL(x)  ((x) > 0 ? (x) : -(x))
-#define SGN(x)     ((x) >= 0 ? 1 : 0)
-
-static unsigned int divandmod32(unsigned int a, unsigned int b,
-    unsigned int *remainder)
+#define ABSVAL(x) ( (x) > 0 ? (x) : -(x))
+#define SGN(x) ( (x) >= 0 ? 1 : 0 )
+                                      
+static unsigned int divandmod32(unsigned int a, unsigned int b, unsigned int *remainder)
 {
         unsigned int result;
@@ -54 +53 @@
         }
         
-        if (a < b) {
+        if ( a < b) {
                 *remainder = a;
                 return 0;
         }
-        
-        for (; steps > 0; steps--) {
+
+        for ( ; steps > 0; steps--) {
                 /* shift one bit to remainder */
-                *remainder = ((*remainder) << 1) | (( a >> 31) & 0x1);
+                *remainder = ( (*remainder) << 1) | (( a >> 31) & 0x1);
                 result <<= 1;
                 
                 if (*remainder >= b) {
-                        *remainder -= b;
-                        result |= 0x1;
+                                *remainder -= b;
+                                result |= 0x1;
                 }
                 a <<= 1;
         }
-        
+
         return result;
 }
 
-static unsigned long long divandmod64(unsigned long long a,
-    unsigned long long b, unsigned long long *remainder)
+
+static unsigned long long divandmod64(unsigned long long a, unsigned long long b, unsigned long long *remainder)
 {
         unsigned long long result;
-        int steps = sizeof(unsigned long long) * 8;
+        int steps = sizeof(unsigned long long) * 8; 
         
         *remainder = 0;
@@ -88 +87 @@
         }
         
-        if (a < b) {
+        if ( a < b) {
                 *remainder = a;
                 return 0;
         }
-        
-        for (; steps > 0; steps--) {
+
+        for ( ; steps > 0; steps--) {
                 /* shift one bit to remainder */
-                *remainder = ((*remainder) << 1) | ((a >> 63) & 0x1);
+                *remainder = ( (*remainder) << 1) | ((a >> 63) & 0x1);
                 result <<= 1;
                 
                 if (*remainder >= b) {
-                        *remainder -= b;
-                        result |= 0x1;
+                                *remainder -= b;
+                                result |= 0x1;
                 }
                 a <<= 1;
         }
-        
+
         return result;
 }
 
 /* 32bit integer division */
-int __divsi3(int a, int b)
+int __divsi3(int a, int b) 
 {
         unsigned int rem;
-        int result = (int) divandmod32(ABSVAL(a), ABSVAL(b), &rem);
+        int result;
         
-        if (SGN(a) == SGN(b))
-                return result;
-        
+        result = (int)divandmod32(ABSVAL(a), ABSVAL(b), &rem);
+
+        if ( SGN(a) == SGN(b)) return result;
         return -result;
 }
 
 /* 64bit integer division */
-long long __divdi3(long long a, long long b)
+long long __divdi3(long long a, long long b) 
 {
         unsigned long long rem;
-        long long result = (long long) divandmod64(ABSVAL(a), ABSVAL(b), &rem);
+        long long result;
         
-        if (SGN(a) == SGN(b))
-                return result;
-        
+        result = (long long)divandmod64(ABSVAL(a), ABSVAL(b), &rem);
+
+        if ( SGN(a) == SGN(b)) return result;
         return -result;
 }
@@ -142 +141 @@
 unsigned long long __udivdi3(unsigned long long a, unsigned long long b)
 {
-        unsigned long long rem;
+        unsigned long long  rem;
         return divandmod64(a, b, &rem);
 }
@@ -153 +152 @@
         
         /* if divident is negative, remainder must be too */
-        if (!(SGN(a)))
-                return -((int) rem);
+        if (!(SGN(a))) {
+                return -((int)rem);
+        }
         
-        return (int) rem;
+        return (int)rem;
 }
 
 /* 64bit remainder of the signed division */
-long long __moddi3(long long a, long long b)
+long long __moddi3(long long a,long  long b)
 {
         unsigned long long rem;
@@ -166 +166 @@
         
         /* if divident is negative, remainder must be too */
-        if (!(SGN(a)))
-                return -((long long) rem);
+        if (!(SGN(a))) {
+                return -((long long)rem);
+        }
         
-        return (long long) rem;
+        return (long long)rem;
 }
 
@@ -188 +189 @@
 }
 
-int __divmodsi3(int a, int b, int *c)
-{
-        unsigned int rem;
-        int result = (int) divandmod32(ABSVAL(a), ABSVAL(b), &rem);
-        
-        if (SGN(a) == SGN(b)) {
-                *c = rem;
-                return result;
-        }
-        
-        *c = -rem;
-        return -result;
-}
-
-unsigned int __udivmodsi3(unsigned int a, unsigned int b,
-    unsigned int *c)
-{
-        return divandmod32(a, b, c);
-}
-
-long long __divmoddi3(long long a, long long b, long long *c)
-{
-        unsigned long long rem;
-        long long result = (int) divandmod64(ABSVAL(a), ABSVAL(b), &rem);
-        
-        if (SGN(a) == SGN(b)) {
-                *c = rem;
-                return result;
-        }
-        
-        *c = -rem;
-        return -result;
-}
-
-unsigned long long __udivmoddi3(unsigned long long a, unsigned long long b,
-    unsigned long long *c)
+unsigned long long __udivmoddi3(unsigned long long a, unsigned long long b, unsigned long long *c)
 {
         return divandmod64(a, b, c);