microblaze: Add translation routines.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/target-microblaze/microblaze-decode.h b/target-microblaze/microblaze-decode.h
new file mode 100644
index 0000000000..27b01288c9
--- /dev/null
+++ b/target-microblaze/microblaze-decode.h
@@ -0,0 +1,52 @@
+/*
+ *  MicroBlaze insn decoding macros.
+ *
+ *  Copyright (c) 2009 Edgar E. Iglesias <edgar.iglesias@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
+ */
+
+/* Convenient binary macros.  */
+#define HEX__(n) 0x##n##LU
+#define B8__(x) ((x&0x0000000FLU)?1:0) \
+                 + ((x&0x000000F0LU)?2:0) \
+                 + ((x&0x00000F00LU)?4:0) \
+                 + ((x&0x0000F000LU)?8:0) \
+                 + ((x&0x000F0000LU)?16:0) \
+                 + ((x&0x00F00000LU)?32:0) \
+                 + ((x&0x0F000000LU)?64:0) \
+                 + ((x&0xF0000000LU)?128:0)
+#define B8(d) ((unsigned char)B8__(HEX__(d)))
+
+/* Decode logic, mask and value.  */
+#define DEC_ADD     {B8(00000000), B8(00110001)}
+#define DEC_SUB     {B8(00000001), B8(00110001)}
+#define DEC_AND     {B8(00100001), B8(00110101)}
+#define DEC_XOR     {B8(00100010), B8(00110111)}
+#define DEC_OR      {B8(00100000), B8(00110111)}
+#define DEC_BIT     {B8(00100100), B8(00111111)}
+#define DEC_MSR     {B8(00100101), B8(00111111)}
+
+#define DEC_BARREL  {B8(00010001), B8(00110111)}
+#define DEC_MUL     {B8(00010000), B8(00110111)}
+#define DEC_DIV     {B8(00010010), B8(00110111)}
+
+#define DEC_LD      {B8(00110000), B8(00110100)}
+#define DEC_ST      {B8(00110100), B8(00110100)}
+#define DEC_IMM     {B8(00101100), B8(00111111)}
+
+#define DEC_BR      {B8(00100110), B8(00110111)}
+#define DEC_BCC     {B8(00100111), B8(00110111)}
+#define DEC_RTS     {B8(00101101), B8(00111111)}