Changeset 9f9871f in rtems

Timestamp:

Mar 6, 2002, 2:37:38 PM (20 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

8264d23

Parents:

b04ee63

Message:

2002-03-06 Victor V. Vengerov <vvv@…>

• rtems/score/m68k.h [M68K_COLDFIRE_ARCH] (CPU_swap_u16, CPU_swap_u32): Generic implementation of endian swap primitives added for Coldfire family.

Files:

• c/src/exec/score/cpu/m68k/ChangeLog (modified) (1 diff)
• c/src/exec/score/cpu/m68k/rtems/score/m68k.h (modified) (3 diffs)
• cpukit/score/cpu/m68k/ChangeLog (modified) (1 diff)
• cpukit/score/cpu/m68k/rtems/score/m68k.h (modified) (3 diffs)

c/src/exec/score/cpu/m68k/ChangeLog

@@ +1 @@
+2002-03-06      Victor V. Vengerov <vvv@oktet.ru>
+
+        * rtems/score/m68k.h [M68K_COLDFIRE_ARCH] (CPU_swap_u16, CPU_swap_u32): 
+        Generic implementation of endian swap primitives added for Coldfire 
+        family.
+
 2002-01-29      Ralf Corsepius <corsepiu@faw.uni-ulm.de>
 

c/src/exec/score/cpu/m68k/rtems/score/m68k.h

@@ -228 +228 @@
 #error "Unsupported CPU model -- are you sure you're running a 68k compiler?"
 
+#endif
+
+#ifndef ASM
+#include <rtems/score/m68ktypes.h>
 #endif
 
@@ -327 +331 @@
  *  It must be static because it is referenced indirectly.
  */
+#if ( M68K_COLDFIRE_ARCH == 1 )
+
+/* There are no rotate commands in Coldfire architecture. We will use
+ * generic implementation of endian swapping for Coldfire.
+ */
+static inline unsigned int CPU_swap_u32(
+  unsigned int value
+  )
+{
+  unsigned32 byte1, byte2, byte3, byte4, swapped;
+    
+  byte4 = (value >> 24) & 0xff;
+  byte3 = (value >> 16) & 0xff;
+  byte2 = (value >> 8)  & 0xff;
+  byte1 =  value        & 0xff;
+           
+  swapped = (byte1 << 24) | (byte2 << 16) | (byte3 << 8) | byte4;
+  return( swapped );
+}
+ 
+static inline unsigned int m68k_swap_u16(
+  unsigned int value
+)
+{
+  return (((value & 0xff) << 8) | ((value >> 8) & 0xff));
+}
+                  
+#else
 
 static inline unsigned int m68k_swap_u32(
@@ -351 +383 @@
   return( swapped );
 }
+#endif
 
 #define CPU_swap_u32( value )  m68k_swap_u32( value )

cpukit/score/cpu/m68k/ChangeLog

@@ +1 @@
+2002-03-06      Victor V. Vengerov <vvv@oktet.ru>
+
+        * rtems/score/m68k.h [M68K_COLDFIRE_ARCH] (CPU_swap_u16, CPU_swap_u32): 
+        Generic implementation of endian swap primitives added for Coldfire 
+        family.
+
 2002-01-29      Ralf Corsepius <corsepiu@faw.uni-ulm.de>
 

cpukit/score/cpu/m68k/rtems/score/m68k.h

@@ -228 +228 @@
 #error "Unsupported CPU model -- are you sure you're running a 68k compiler?"
 
+#endif
+
+#ifndef ASM
+#include <rtems/score/m68ktypes.h>
 #endif
 
@@ -327 +331 @@
  *  It must be static because it is referenced indirectly.
  */
+#if ( M68K_COLDFIRE_ARCH == 1 )
+
+/* There are no rotate commands in Coldfire architecture. We will use
+ * generic implementation of endian swapping for Coldfire.
+ */
+static inline unsigned int CPU_swap_u32(
+  unsigned int value
+  )
+{
+  unsigned32 byte1, byte2, byte3, byte4, swapped;
+    
+  byte4 = (value >> 24) & 0xff;
+  byte3 = (value >> 16) & 0xff;
+  byte2 = (value >> 8)  & 0xff;
+  byte1 =  value        & 0xff;
+           
+  swapped = (byte1 << 24) | (byte2 << 16) | (byte3 << 8) | byte4;
+  return( swapped );
+}
+ 
+static inline unsigned int m68k_swap_u16(
+  unsigned int value
+)
+{
+  return (((value & 0xff) << 8) | ((value >> 8) & 0xff));
+}
+                  
+#else
 
 static inline unsigned int m68k_swap_u32(
@@ -351 +383 @@
   return( swapped );
 }
+#endif
 
 #define CPU_swap_u32( value )  m68k_swap_u32( value )