2003-08-01 Jason Eckhardt <jle@rice.edu>

        * config/tc-i860.c (s_align_wrapper): New function and prototype.
        (md_pseudo_table): Change s_align_bytes to s_align_wrapper, remove
        surrounding OBJ_ELF ifdef, and re-format slightly.
        * doc/c-i860.texi: Document the special .align syntax available
        in Intel mode.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index bbb0d78..34e8800 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,13 @@
 2003-08-06  Jason Eckhardt  <jle@rice.edu>
 
+        * config/tc-i860.c (s_align_wrapper): New function and prototype.
+        (md_pseudo_table): Change s_align_bytes to s_align_wrapper, remove
+        surrounding OBJ_ELF ifdef, and re-format slightly.
+        * doc/c-i860.texi: Document the special .align syntax available
+        in Intel mode.
+
+2003-08-06  Jason Eckhardt  <jle@rice.edu>
+
        * config/tc-i860.c (i860_handle_align): New function.
        * config/tc-i860.h (HANDLE_ALIGN): Define macro.
        (MAX_MEM_FOR_RS_ALIGN_CODE): Define macro.

diff --git a/gas/config/tc-i860.c b/gas/config/tc-i860.c
index b281d52..f5e4457 100644 (file)
--- a/gas/config/tc-i860.c
+++ b/gas/config/tc-i860.c
@@ -91,6 +91,7 @@ static void i860_process_insn (char *);
 static void s_dual (int);
 static void s_enddual (int);
 static void s_atmp (int);
+static void s_align_wrapper (int);
 static int i860_get_expression (char *);
 static bfd_reloc_code_real_type obtain_reloc_for_imm16 (fixS *, long *); 
 #ifdef DEBUG_I860
@@ -99,13 +100,11 @@ static void print_insn (struct i860_it *);
 
 const pseudo_typeS md_pseudo_table[] =
 {
-#ifdef OBJ_ELF
-  {"align",   s_align_bytes, 0},
-#endif
-  {"dual",    s_dual,        0},
-  {"enddual", s_enddual,     0},
-  {"atmp",    s_atmp,        0},
-  {NULL,      0,             0},
+  {"align",   s_align_wrapper, 0},
+  {"dual",    s_dual,          0},
+  {"enddual", s_enddual,       0},
+  {"atmp",    s_atmp,          0},
+  {NULL,      0,               0},
 };
 
 /* Dual-instruction mode handling.  */
@@ -176,6 +175,39 @@ s_atmp (int ignore ATTRIBUTE_UNUSED)
   demand_empty_rest_of_line ();
 }
 
+/* Handle ".align" directive depending on syntax mode.
+   AT&T/SVR4 syntax uses the standard align directive.  However, 
+   the Intel syntax additionally allows keywords for the alignment
+   parameter: ".align type", where type is one of {.short, .long,
+   .quad, .single, .double} representing alignments of 2, 4,
+   16, 4, and 8, respectively.  */
+static void
+s_align_wrapper (int arg)
+{
+  char *parm = input_line_pointer;
+
+  if (target_intel_syntax)
+    {
+      /* Replace a keyword with the equivalent integer so the
+         standard align routine can parse the directive.  */
+      if (strncmp (parm, ".short", 6) == 0)
+        strncpy (parm, "     2", 6);
+      else if (strncmp (parm, ".long", 5) == 0)
+        strncpy (parm, "    4", 5);
+      else if (strncmp (parm, ".quad", 5) == 0)
+        strncpy (parm, "   16", 5);
+      else if (strncmp (parm, ".single", 7) == 0)
+        strncpy (parm, "      4", 7);
+      else if (strncmp (parm, ".double", 7) == 0)
+        strncpy (parm, "      8", 7);
+     
+      while (*input_line_pointer == ' ')
+        ++input_line_pointer;
+    }
+
+  s_align_bytes (arg);
+}
+
 /* This function is called once, at assembler startup time.  It should
    set up all the tables and data structures that the MD part of the
    assembler will need.  */

diff --git a/gas/doc/c-i860.texi b/gas/doc/c-i860.texi
index 118fe34..79decb2 100644 (file)
--- a/gas/doc/c-i860.texi
+++ b/gas/doc/c-i860.texi
@@ -106,6 +106,12 @@ default register is @code{r31}.
 
 The @code{.dual}, @code{.enddual}, and @code{.atmp} directives are available only in the Intel syntax mode.
 
+Both syntaxes allow for the standard @code{.align} directive.  However,
+the Intel syntax additionally allows keywords for the alignment
+parameter: "@code{.align type}", where `type' is one of @code{.short}, @code{.long},
+@code{.quad}, @code{.single}, @code{.double} representing alignments of 2, 4,
+16, 4, and 8, respectively.
+
 @node Opcodes for i860
 @section i860 Opcodes