ubsan: microblaze: left shift cannot be represented in type 'int'

[deliverable/binutils-gdb.git] / sim / ppc / bits.h

diff --git a/sim/ppc/bits.h b/sim/ppc/bits.h
index 06898e07e9b65d6b3ee83bc2afa1cf5ae7ef5ffc..58173f78cd5c3c0fe15d6daf3dd527d8fd34b472 100644 (file)
--- a/sim/ppc/bits.h
+++ b/sim/ppc/bits.h
@@ -4,7 +4,7 @@
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
+    the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
@@ -13,8 +13,7 @@
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+    along with this program; if not, see <http://www.gnu.org/licenses/>.
  
     */
 
@@ -45,10 +44,15 @@
    MASKED*(VALUE, FIRST, LAST): Masks out all but bits [FIRST
    .. LAST].
 
+   LSMASKED*(VALUE, FIRST, LAST): Like MASKED - LS bit is zero.
+
    EXTRACTED*(VALUE, FIRST, LAST): Masks out bits [FIRST .. LAST] but
    also right shifts the masked value so that bit LAST becomes the
    least significant (right most).
 
+   LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is
+   zero.
+
    SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD
    new NEW.
 
@@ -77,6 +81,13 @@
 #define _MAKE_SHIFT(WIDTH, pos) ((WIDTH) - 1 - (pos))
 
 
+#if (WITH_TARGET_WORD_MSB == 0)
+#define _LSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT)
+#else
+#define _LSB_POS(WIDTH, SHIFT) (SHIFT)
+#endif
+
+
 /* MakeBit */
 #define _BITn(WIDTH, pos) (((natural##WIDTH)(1)) \
                           << _MAKE_SHIFT(WIDTH, pos))
@@ -104,6 +115,14 @@
 #define MASK32(START, STOP)   _MASKn(32, START, STOP)
 #define MASK64(START, STOP)   _MASKn(64, START, STOP)
 
+/* Multi-bit mask on least significant bits */
+
+#define _LSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \
+                                            _LSB_POS (WIDTH, FIRST), \
+                                            _LSB_POS (WIDTH, LAST))
+
+#define LSMASK64(FIRST, LAST)  _LSMASKn (64, (FIRST), (LAST))
+
 #if (WITH_TARGET_WORD_BITSIZE == 64)
 #define MASK(START, STOP) \
 (((START) <= (STOP)) \
@@ -149,6 +168,12 @@ INLINE_BITS\
  unsigned start,
  unsigned stop);
 
+INLINE_BITS\
+(unsigned64) LSMASKED64
+(unsigned64 word,
+ int first,
+  int last);
+
 
 /* extract the required bits aligning them with the lsb */
 #define _EXTRACTEDn(WIDTH, WORD, START, STOP) \
@@ -165,6 +190,11 @@ INLINE_BITS\
  unsigned start,
  unsigned stop);
 
+INLINE_BITS\
+(unsigned64) LSEXTRACTED64
+(unsigned64 val,
+ int start,
+ int stop);
 
 /* move a single bit around */
 /* NB: the wierdness (N>O?N-O:0) is to stop a warning from GCC */