X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Flm32-ibld.c;h=181278903fb66dc00b63d33e43770b0ddf069f70;hb=0f6d864de2469af4223391993b430b0d45573dcb;hp=c9f82297012bda9adf78d93f610faf3c36d77af8;hpb=fe8afbc48fd3fba73600670fd2b0fcbfd45c440a;p=deliverable%2Fbinutils-gdb.git

diff --git a/opcodes/lm32-ibld.c b/opcodes/lm32-ibld.c
index c9f8229701..181278903f 100644
--- a/opcodes/lm32-ibld.c
+++ b/opcodes/lm32-ibld.c
@@ -3,8 +3,7 @@
    THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
    - the resultant file is machine generated, cgen-ibld.in isn't
 
-   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007,
-   2008, 2010  Free Software Foundation, Inc.
+   Copyright (C) 1996-2017 Free Software Foundation, Inc.
 
    This file is part of libopcodes.
 
@@ -138,7 +137,7 @@ insert_normal (CGEN_CPU_DESC cd,
   if (length == 0)
     return NULL;
 
-  if (word_length > 32)
+  if (word_length > 8 * sizeof (CGEN_INSN_INT))
     abort ();
 
   /* For architectures with insns smaller than the base-insn-bitsize,
@@ -155,7 +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)
 	{
@@ -193,7 +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
@@ -208,12 +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);
   }
 
@@ -442,7 +448,7 @@ extract_normal (CGEN_CPU_DESC cd,
       return 1;
     }
 
-  if (word_length > 32)
+  if (word_length > 8 * sizeof (CGEN_INSN_INT))
     abort ();
 
   /* For architectures with insns smaller than the insn-base-bitsize,
@@ -469,7 +475,7 @@ extract_normal (CGEN_CPU_DESC cd,
     {
       unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
 
-      if (word_length > 32)
+      if (word_length > 8 * sizeof (CGEN_INSN_INT))
 	abort ();
 
       if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
@@ -740,12 +746,12 @@ lm32_cgen_extract_operand (CGEN_CPU_DESC cd,
   return length;
 }
 
-cgen_insert_fn * const lm32_cgen_insert_handlers[] = 
+cgen_insert_fn * const lm32_cgen_insert_handlers[] =
 {
   insert_insn_normal,
 };
 
-cgen_extract_fn * const lm32_cgen_extract_handlers[] = 
+cgen_extract_fn * const lm32_cgen_extract_handlers[] =
 {
   extract_insn_normal,
 };