Changeset e828c2dd in rtems

Timestamp:

03/23/99 23:06:42 (24 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

33fefc2

Parents:

da7a73e

Message:

SPARC optimized version of IP checksum header routine. Submitted
by Jiri Gaisler <jgais@…>.

Files:

• c/src/exec/libnetworking/rtems/rtems_glue.c (modified) (2 diffs)
• c/src/lib/libnetworking/rtems/rtems_glue.c (modified) (2 diffs)
• c/src/libnetworking/rtems/rtems_glue.c (modified) (2 diffs)
• cpukit/libnetworking/rtems/rtems_glue.c (modified) (2 diffs)

c/src/exec/libnetworking/rtems/rtems_glue.c

@@ -698 +698 @@
  * IP header checksum routine for processors which don't have an inline version
  */
+
+#ifdef (defined(__GNUC__) && defined(sparc))
+
+        asm("
+        .text
+        .global _in_cksum_hdr
+_in_cksum_hdr:
+
+        ld [%o0], %o1
+        ld [%o0+4], %o2
+        addcc %o1, %o2, %o1
+        ld [%o0+8], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+12], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+16], %o2
+        addxcc %o1, %o2, %o1
+        set 0x0ffff, %o3
+        srl %o1, 16, %o2
+        and %o1, %o3, %o1
+        addx %o1, %o2, %o1
+        srl %o1, 16, %o1
+        add %o1, %g0, %o1
+        neg %o1
+        retl
+        and %o1, %o3, %o0
+
+        ");
+#else
+
 u_int
 in_cksum_hdr (const void *ip)
@@ -713 +743 @@
         return ~sum & 0xFFFF;
 }
+
+#endif
 
 /*

c/src/lib/libnetworking/rtems/rtems_glue.c

@@ -698 +698 @@
  * IP header checksum routine for processors which don't have an inline version
  */
+
+#ifdef (defined(__GNUC__) && defined(sparc))
+
+        asm("
+        .text
+        .global _in_cksum_hdr
+_in_cksum_hdr:
+
+        ld [%o0], %o1
+        ld [%o0+4], %o2
+        addcc %o1, %o2, %o1
+        ld [%o0+8], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+12], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+16], %o2
+        addxcc %o1, %o2, %o1
+        set 0x0ffff, %o3
+        srl %o1, 16, %o2
+        and %o1, %o3, %o1
+        addx %o1, %o2, %o1
+        srl %o1, 16, %o1
+        add %o1, %g0, %o1
+        neg %o1
+        retl
+        and %o1, %o3, %o0
+
+        ");
+#else
+
 u_int
 in_cksum_hdr (const void *ip)
@@ -713 +743 @@
         return ~sum & 0xFFFF;
 }
+
+#endif
 
 /*

c/src/libnetworking/rtems/rtems_glue.c

@@ -698 +698 @@
  * IP header checksum routine for processors which don't have an inline version
  */
+
+#ifdef (defined(__GNUC__) && defined(sparc))
+
+        asm("
+        .text
+        .global _in_cksum_hdr
+_in_cksum_hdr:
+
+        ld [%o0], %o1
+        ld [%o0+4], %o2
+        addcc %o1, %o2, %o1
+        ld [%o0+8], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+12], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+16], %o2
+        addxcc %o1, %o2, %o1
+        set 0x0ffff, %o3
+        srl %o1, 16, %o2
+        and %o1, %o3, %o1
+        addx %o1, %o2, %o1
+        srl %o1, 16, %o1
+        add %o1, %g0, %o1
+        neg %o1
+        retl
+        and %o1, %o3, %o0
+
+        ");
+#else
+
 u_int
 in_cksum_hdr (const void *ip)
@@ -713 +743 @@
         return ~sum & 0xFFFF;
 }
+
+#endif
 
 /*

cpukit/libnetworking/rtems/rtems_glue.c

@@ -698 +698 @@
  * IP header checksum routine for processors which don't have an inline version
  */
+
+#ifdef (defined(__GNUC__) && defined(sparc))
+
+        asm("
+        .text
+        .global _in_cksum_hdr
+_in_cksum_hdr:
+
+        ld [%o0], %o1
+        ld [%o0+4], %o2
+        addcc %o1, %o2, %o1
+        ld [%o0+8], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+12], %o2
+        addxcc %o1, %o2, %o1
+        ld [%o0+16], %o2
+        addxcc %o1, %o2, %o1
+        set 0x0ffff, %o3
+        srl %o1, 16, %o2
+        and %o1, %o3, %o1
+        addx %o1, %o2, %o1
+        srl %o1, 16, %o1
+        add %o1, %g0, %o1
+        neg %o1
+        retl
+        and %o1, %o3, %o0
+
+        ");
+#else
+
 u_int
 in_cksum_hdr (const void *ip)
@@ -713 +743 @@
         return ~sum & 0xFFFF;
 }
+
+#endif
 
 /*