summaryrefslogtreecommitdiffstats
path: root/c/src/exec/score/inline/address.inl
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/exec/score/inline/address.inl')
-rw-r--r--c/src/exec/score/inline/address.inl120
1 files changed, 120 insertions, 0 deletions
diff --git a/c/src/exec/score/inline/address.inl b/c/src/exec/score/inline/address.inl
new file mode 100644
index 0000000000..e30ca616fa
--- /dev/null
+++ b/c/src/exec/score/inline/address.inl
@@ -0,0 +1,120 @@
+/* inline/address.inl
+ *
+ * This include file contains the bodies of the routines
+ * about addresses which are inlined.
+ *
+ * COPYRIGHT (c) 1989-1997.
+ * On-Line Applications Research Corporation (OAR).
+ * Copyright assigned to U.S. Government, 1994.
+ *
+ * The license and distribution terms for this file may in
+ * the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#ifndef __INLINE_ADDRESSES_inl
+#define __INLINE_ADDRESSES_inl
+
+/*PAGE
+ *
+ * _Addresses_Add_offset
+ *
+ * DESCRIPTION:
+ *
+ * This function is used to add an offset to a base address.
+ * It returns the resulting address. This address is typically
+ * converted to an access type before being used further.
+ */
+
+RTEMS_INLINE_ROUTINE void *_Addresses_Add_offset (
+ void *base,
+ unsigned32 offset
+)
+{
+ return (void *)((char *)base + offset);
+}
+
+/*PAGE
+ *
+ * _Addresses_Subtract_offset
+ *
+ * DESCRIPTION:
+ *
+ * This function is used to subtract an offset from a base
+ * address. It returns the resulting address. This address is
+ * typically converted to an access type before being used further.
+ */
+
+RTEMS_INLINE_ROUTINE void *_Addresses_Subtract_offset (
+ void *base,
+ unsigned32 offset
+)
+{
+ return (void *)((char *)base - offset);
+}
+
+/*PAGE
+ *
+ * _Addresses_Subtract
+ *
+ * DESCRIPTION:
+ *
+ * This function is used to subtract two addresses. It returns the
+ * resulting offset.
+ *
+ * NOTE: The cast of an address to an unsigned32 makes this code
+ * dependent on an addresses being thirty two bits.
+ */
+
+RTEMS_INLINE_ROUTINE unsigned32 _Addresses_Subtract (
+ void *left,
+ void *right
+)
+{
+ return ((char *) left - (char *) right);
+}
+
+/*PAGE
+ *
+ * _Addresses_Is_aligned
+ *
+ * DESCRIPTION:
+ *
+ * This function returns TRUE if the given address is correctly
+ * aligned for this processor and FALSE otherwise. Proper alignment
+ * is based on correctness and efficiency.
+ */
+
+RTEMS_INLINE_ROUTINE boolean _Addresses_Is_aligned (
+ void *address
+)
+{
+ return ( ( (unsigned32)address % CPU_ALIGNMENT ) == 0 );
+}
+
+/*PAGE
+ *
+ * _Addresses_Is_in_range
+ *
+ * DESCRIPTION:
+ *
+ * This function returns TRUE if the given address is within the
+ * memory range specified and FALSE otherwise. base is the address
+ * of the first byte in the memory range and limit is the address
+ * of the last byte in the memory range. The base address is
+ * assumed to be lower than the limit address.
+ */
+
+RTEMS_INLINE_ROUTINE boolean _Addresses_Is_in_range (
+ void *address,
+ void *base,
+ void *limit
+)
+{
+ return ( address >= base && address <= limit );
+}
+
+#endif
+/* end of include file */