Update of /cvsroot/linux-vax/toolchain/src/opcodes
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv9422
Modified Files:
vax-dis.c
Log Message:
- Decode entry mask.
Index: vax-dis.c
===================================================================
RCS file: /cvsroot/linux-vax/toolchain/src/opcodes/vax-dis.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -d -r1.1.1.1 -r1.2
--- vax-dis.c 17 Feb 2003 00:33:08 -0000 1.1.1.1
+++ vax-dis.c 12 Mar 2005 12:51:16 -0000 1.2
@@ -34,6 +34,21 @@
"r8", "r9", "r10", "r11", "ap", "fp", "sp", "pc"
};
+/* Definitions for the function entry mask bits. */
+static char *entry_mask_bit[] =
+{
+ /* Registers 0 and 1 shall not be saved, since they're used to pass back
+ a function's result to its caller... */
+ "~r0~", "~r1~",
+ /* Registers 2 .. 11 are normal registers. */
+ "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11",
+ /* Registers 12 and 13 are argument and frame pointer and must not
+ be saved by using the entry mask. */
+ "~ap~", "~fp~",
+ /* Bits 14 and 15 control integer and decimal overflow. */
+ "IntOvfl", "DecOvfl",
+};
+
/* Sign-extend an (unsigned char). */
#if __STDC__ == 1
#define COERCE_SIGNED_CHAR(ch) ((signed char)(ch))
@@ -140,6 +155,27 @@
buffer[1] = 0;
}
+ /* Decode function entry mask. */
+ if (info->symbols
+ && info->symbols[0]
+ && (info->symbols[0]->flags & BSF_FUNCTION)
+ && memaddr == bfd_asymbol_value (info->symbols[0]))
+ {
+ int i = 0;
+ int register_mask = buffer[1] << 8 | buffer[0];
+
+ (*info->fprintf_func) (info->stream, ".word = 0x%04x # Entry mask: <",
+ register_mask);
+
+ for (i = 15; i >= 0; i--)
+ if (register_mask & (1 << i))
+ (*info->fprintf_func) (info->stream, " %s", entry_mask_bit[i]);
+
+ (*info->fprintf_func) (info->stream, " >");
+
+ return 2;
+ }
+
for (votp = &votstrs[0]; votp->name[0]; votp++)
{
register vax_opcodeT opcode = votp->detail.code;
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