X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fmt-ibld.c;h=c678e996953e8c08645b901b0846489017df7fb0;hb=c0890d26289c4dad0e2ddedb7822a32a0645d150;hp=8bf33f07499552172fa464a784442829d32f88c4;hpb=b90efa5b79ac1524ec260f8eb89d1be37e0219a7;p=deliverable%2Fbinutils-gdb.git

diff --git a/opcodes/mt-ibld.c b/opcodes/mt-ibld.c
index 8bf33f0749..c678e99695 100644
--- a/opcodes/mt-ibld.c
+++ b/opcodes/mt-ibld.c
@@ -3,7 +3,7 @@
    THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
    - the resultant file is machine generated, cgen-ibld.in isn't
 
-   Copyright (C) 1996-2015 Free Software Foundation, Inc.
+   Copyright (C) 1996-2016 Free Software Foundation, Inc.
 
    This file is part of libopcodes.
 
@@ -154,7 +154,7 @@ insert_normal (CGEN_CPU_DESC cd,
     {
       long minval = - (1L << (length - 1));
       unsigned long maxval = mask;
-      
+
       if ((value > 0 && (unsigned long) value > maxval)
 	  || value < minval)
 	{
@@ -192,7 +192,7 @@ insert_normal (CGEN_CPU_DESC cd,
 	{
 	  long minval = - (1L << (length - 1));
 	  long maxval =   (1L << (length - 1)) - 1;
-	  
+
 	  if (value < minval || value > maxval)
 	    {
 	      sprintf
@@ -207,12 +207,19 @@ insert_normal (CGEN_CPU_DESC cd,
 #if CGEN_INT_INSN_P
 
   {
-    int shift;
+    int shift_within_word, shift_to_word, shift;
 
+    /* How to shift the value to BIT0 of the word.  */
+    shift_to_word = total_length - (word_offset + word_length);
+
+    /* How to shift the value to the field within the word.  */
     if (CGEN_INSN_LSB0_P)
-      shift = (word_offset + start + 1) - length;
+      shift_within_word = start + 1 - length;
     else
-      shift = total_length - (word_offset + start + length);
+      shift_within_word = word_length - start - length;
+
+    /* The total SHIFT, then mask in the value.  */
+    shift = shift_to_word + shift_within_word;
     *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
   }
 
@@ -970,12 +977,12 @@ mt_cgen_extract_operand (CGEN_CPU_DESC cd,
   return length;
 }
 
-cgen_insert_fn * const mt_cgen_insert_handlers[] = 
+cgen_insert_fn * const mt_cgen_insert_handlers[] =
 {
   insert_insn_normal,
 };
 
-cgen_extract_fn * const mt_cgen_extract_handlers[] = 
+cgen_extract_fn * const mt_cgen_extract_handlers[] =
 {
   extract_insn_normal,
 };