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[deliverable/binutils-gdb.git] / gdb / h8300-tdep.c

diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 3c2f502a124dec4d0d5c60209a6039aa6ea3f2a8..b569a23f2631cfb1f69d16e639734070b2b24cca 100644 (file)
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -178,10 +178,10 @@ h8300_is_argument_spill (struct gdbarch *gdbarch, CORE_ADDR pc)
       if (IS_MOVB_Rn24_SP (read_memory_unsigned_integer (pc + 2,
                                                         2, byte_order)))
        {
-         LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
+         ULONGEST disp = read_memory_unsigned_integer (pc + 4, 4, byte_order);
 
          /* ... and d:24 is negative.  */
-         if (disp < 0 && disp > 0xffffff)
+         if ((disp & 0x00800000) != 0)
            return 8;
        }
     }
@@ -197,10 +197,10 @@ h8300_is_argument_spill (struct gdbarch *gdbarch, CORE_ADDR pc)
       if (IS_MOVW_Rn24_SP (read_memory_unsigned_integer (pc + 2,
                                                         2, byte_order)))
        {
-         LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
+         ULONGEST disp = read_memory_unsigned_integer (pc + 4, 4, byte_order);
 
          /* ... and d:24 is negative.  */
-         if (disp < 0 && disp > 0xffffff)
+         if ((disp & 0x00800000) != 0)
            return 8;
        }
     }
@@ -219,10 +219,11 @@ h8300_is_argument_spill (struct gdbarch *gdbarch, CORE_ADDR pc)
        {
          if (IS_MOVL_Rn24_SP (read_memory_integer (pc + 4, 2, byte_order)))
            {
-             LONGEST disp = read_memory_integer (pc + 6, 4, byte_order);
+             ULONGEST disp = read_memory_unsigned_integer (pc + 6, 4,
+                                                           byte_order);
 
              /* ... and d:24 is negative.  */
-             if (disp < 0 && disp > 0xffffff)
+             if ((disp & 0x00800000) != 0)
                return 10;
            }
        }