Changeset 9abe2e5 in mainline

Timestamp:

2017-05-04T22:23:34Z (7 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f233840

Parents:

db8626d

Message:

add support for [u]divmoddi4

Files:

• kernel/genarch/include/genarch/softint/division.h (modified) (1 diff)
• kernel/genarch/src/softint/division.c (modified) (1 diff)
• uspace/lib/softint/generic/division.c (modified) (2 diffs)
• uspace/lib/softint/include/division.h (modified) (1 diff)

kernel/genarch/include/genarch/softint/division.h

@@ -62 +62 @@
 extern unsigned long long __udivmoddi3(unsigned long long, unsigned long long,
     unsigned long long *);
+extern unsigned long long __udivmoddi4(unsigned long long, unsigned long long,
+    unsigned long long *);
 
 #endif

kernel/genarch/src/softint/division.c

@@ -226 +226 @@
 }
 
+unsigned long long __udivmoddi4(unsigned long long a, unsigned long long b,
+    unsigned long long *c)
+{
+        return divandmod64(a, b, c);
+}
+
+
+
 /** @}
  */

uspace/lib/softint/generic/division.c

@@ -222 +222 @@
 }
 
+long long __divmoddi4(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)
@@ -228 +242 @@
 }
 
+unsigned long long __udivmoddi4(unsigned long long a, unsigned long long b,
+    unsigned long long *c)
+{
+        return divandmod64(a, b, c);
+}
+
 /** @}
  */

uspace/lib/softint/include/division.h

@@ -53 +53 @@
 
 extern long long __divmoddi3(long long, long long, long long *);
+extern long long __divmoddi4(long long, long long, long long *);
 extern unsigned long long __udivmoddi3(unsigned long long, unsigned long long,
+    unsigned long long *);
+extern unsigned long long __udivmoddi4(unsigned long long, unsigned long long,
     unsigned long long *);