1 files changed, 109 insertions, 0 deletions
diff --git a/cpukit/score/cpu/sparc/sparc-access.S b/cpukit/score/cpu/sparc/sparc-access.S
new file mode 100644
index 0000000000..9397cb815b
--- /dev/null
+++ b/cpukit/score/cpu/sparc/sparc-access.S
@@ -0,0 +1,109 @@
+/*
+ *  Optimized access routines for SPARC.
+ *
+ *  Note the difference between byteorder.h (inlined functions) and access.S
+ *  where the functions will be declared in the library archive librtemscpu.a.
+ *  Function names starting with _ are in library and can be referenced by
+ *  function pointers.
+ *
+ *  _ldN, _stN          standard machine endianess access (SPARC: big-endian)
+ *  _ld_beN, _st_beN    forced big-endian
+ *  _ld_leN, _st_leN    forced little-endian (defined in access_le.C)
+ *
+ *  This file is written in assembly because the big-endian functions maps to
+ *  machine dependant access methods, i.e. same function has two names.
+ *
+ *  COPYRIGHT (c) 2011
+ *  Aeroflex Gaisler.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/asm.h>
+
+	.align 4
+	.section ".text"
+	PUBLIC(_ld8)
+	PUBLIC(_ld16)
+	PUBLIC(_ld32)
+	PUBLIC(_ld64)
+	PUBLIC(_st8)
+	PUBLIC(_st16)
+	PUBLIC(_st32)
+	PUBLIC(_st64)
+	PUBLIC(_ld_be16)
+	PUBLIC(_ld_be32)
+	PUBLIC(_ld_be64)
+	PUBLIC(_st_be16)
+	PUBLIC(_st_be32)
+	PUBLIC(_st_be64)
+
+SYM(_ld8):
+	retl
+	 ldub [%o0], %o0
+
+SYM(_ld_be16):
+SYM(_ld16):
+	retl
+	 lduh [%o0], %o0
+
+SYM(_ld_be32):
+SYM(_ld32):
+	retl
+	 ld [%o0], %o0
+
+SYM(_ld_be64):
+SYM(_ld64):
+	retl
+	 ldd [%o0], %o0
+
+#if defined(__FIX_LEON3FT_B2BST)
+
+SYM(_st8):
+	stub %o1, [%o0]
+	retl
+	 nop
+
+SYM(_st_be16):
+SYM(_st16):
+	stuh %o1, [%o0]
+	retl
+	 nop
+
+SYM(_st_be32):
+SYM(_st32):
+	st %o1, [%o0]
+	retl
+	 nop
+
+SYM(_st_be64):
+SYM(_st64):
+	std %o1, [%o0]
+	retl
+	 nop
+
+#else
+
+SYM(_st8):
+	retl
+	 stb %o1, [%o0]
+
+SYM(_st_be16):
+SYM(_st16):
+	retl
+	 sth %o1, [%o0]
+
+SYM(_st_be32):
+SYM(_st32):
+	retl
+	 st %o1, [%o0]
+
+SYM(_st_be64):
+SYM(_st64):
+	mov %o2, %o3
+	mov %o1, %o2
+	retl
+	 std %o2, [%o0]
+#endif