2009-06-16 H.J. Lu <hongjiu.lu@intel.com>

[deliverable/binutils-gdb.git] / gas / app.c

diff --git a/gas/app.c b/gas/app.c
index 8884d9be821d4aab551e43dd932e0f30b0240c9c..b9832d14b71f02493e5087b66f3a1538f9262be2 100644 (file)
--- a/gas/app.c
+++ b/gas/app.c
@@ -34,6 +34,10 @@
 #endif
 #endif
 
+#ifdef H_TICK_HEX
+int enable_h_tick_hex = 0;
+#endif
+
 #ifdef TC_M68K
 /* Whether we are scrubbing in m68k MRI mode.  This is different from
    flag_m68k_mri, because the two flags will be affected by the .mri
@@ -78,6 +82,9 @@ static const char symbol_chars[] =
 #define LEX_IS_DOUBLEBAR_1ST           13
 #endif
 #define LEX_IS_PARALLEL_SEPARATOR      14
+#ifdef H_TICK_HEX
+#define LEX_IS_H                       15
+#endif
 #define IS_SYMBOL_COMPONENT(c)         (lex[c] == LEX_IS_SYMBOL_COMPONENT)
 #define IS_WHITESPACE(c)               (lex[c] == LEX_IS_WHITESPACE)
 #define IS_LINE_SEPARATOR(c)           (lex[c] == LEX_IS_LINE_SEPARATOR)
@@ -190,6 +197,14 @@ do_scrub_begin (int m68k_mri ATTRIBUTE_UNUSED)
   /* Must do this is we want VLIW instruction with "->" or "<-".  */
   lex['-'] = LEX_IS_SYMBOL_COMPONENT;
 #endif
+
+#ifdef H_TICK_HEX
+  if (enable_h_tick_hex)
+    {
+      lex['h'] = LEX_IS_H;
+      lex['H'] = LEX_IS_H;
+    }
+#endif
 }
 
 /* Saved state of the scrubber.  */
@@ -1009,6 +1024,16 @@ do_scrub_chars (int (*get) (char *, int), char *tostart, int tolen)
 
 #ifndef IEEE_STYLE
        case LEX_IS_ONECHAR_QUOTE:
+#ifdef H_TICK_HEX
+         if (state == 9 && enable_h_tick_hex)
+           {
+             char c;
+
+             c = GET ();
+             as_warn ("'%c found after symbol", c);
+             UNGET (c);
+           }
+#endif
          if (state == 10)
            {
              /* Preserve the whitespace in foo 'b'.  */
@@ -1254,6 +1279,26 @@ do_scrub_chars (int (*get) (char *, int), char *tostart, int tolen)
          PUT ('\n');
          break;
 
+#ifdef H_TICK_HEX
+       case LEX_IS_H:
+         /* Look for strings like H'[0-9A-Fa-f] and if found, replace
+            the H' with 0x to make them gas-style hex characters.  */
+         if (enable_h_tick_hex)
+           {
+             char quot;
+
+             quot = GET ();
+             if (quot == '\'')
+               {
+                 UNGET ('x');
+                 ch = '0';
+               }
+             else
+               UNGET (quot);
+           }
+         /* FALL THROUGH */
+#endif
+
        case LEX_IS_SYMBOL_COMPONENT:
          if (state == 10)
            {