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authorNick Clifton <nickc@redhat.com>1999-10-25 15:28:44 +0000
committerNick Clifton <nickc@redhat.com>1999-10-25 15:28:44 +0000
commit9cac79d30bd2c66a3f91cd5803aadb9dc36bc24b (patch)
tree10d1dfa4e27c463a317339810189e9348c5eff6f /gas
parentf084181a5b087d5f0ff050224154749ee916b05d (diff)
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Apply patch supplied for case 102229 to implement new insns psrclr and psrset.
Diffstat (limited to 'gas')
-rw-r--r--gas/config/tc-mcore.c84
1 files changed, 74 insertions, 10 deletions
diff --git a/gas/config/tc-mcore.c b/gas/config/tc-mcore.c
index 4f4e8e9..549b43d 100644
--- a/gas/config/tc-mcore.c
+++ b/gas/config/tc-mcore.c
@@ -42,14 +42,15 @@ static void mcore_float_cons PARAMS ((int));
static void mcore_stringer PARAMS ((int));
static void mcore_fill PARAMS ((int));
static int log2 PARAMS ((unsigned int));
-static char * parse_reg PARAMS ((char *, unsigned *));
-static char * parse_creg PARAMS ((char *, unsigned *));
-static char * parse_exp PARAMS ((char *, expressionS *));
+static char * parse_reg PARAMS ((char *, unsigned *));
+static char * parse_creg PARAMS ((char *, unsigned *));
+static char * parse_exp PARAMS ((char *, expressionS *));
+static char * parse_rt PARAMS ((char *, char **, int, expressionS *));
+static char * parse_imm PARAMS ((char *, unsigned *, unsigned, unsigned));
+static char * parse_mem PARAMS ((char *, unsigned *, unsigned *, unsigned));
+static char * parse_psrmod PARAMS ((char *, unsigned *));
static void make_name PARAMS ((char *, char *, int));
static int enter_literal PARAMS ((expressionS *, int));
-static char * parse_rt PARAMS ((char *, char **, int, expressionS *));
-static char * parse_imm PARAMS ((char *, unsigned *, unsigned, unsigned));
-static char * parse_mem PARAMS ((char *, unsigned *, unsigned *, unsigned));
static void dump_literals PARAMS ((int));
static void check_literals PARAMS ((int, int));
static void mcore_s_text PARAMS ((int));
@@ -60,7 +61,6 @@ static void mcore_s_bss PARAMS ((int));
static void mcore_s_comm PARAMS ((int));
#endif
-
/* Several places in this file insert raw instructions into the
object. They should use MCORE_INST_XXX macros to get the opcodes
and then use these two macros to crack the MCORE_INST value into
@@ -336,16 +336,17 @@ mcore_fill (unused)
}
poolspan += size * repeat;
+
+ check_literals (1, 0);
}
s_fill (unused);
- check_literals (2, 0);
+ check_literals (1, 0);
}
/* Handle the section changing pseudo-ops. These call through to the
normal implementations, but they dump the literal pool first. */
-
static void
mcore_s_text (ignore)
int ignore;
@@ -589,6 +590,46 @@ parse_creg (s, reg)
}
static char *
+parse_psrmod (s, reg)
+ char * s;
+ unsigned * reg;
+{
+ int i;
+ char buf[10];
+ static struct psrmods
+ {
+ char * name;
+ unsigned int value;
+ }
+ psrmods[] =
+ {
+ { "ie", 1 },
+ { "fe", 2 },
+ { "ee", 4 },
+ { "af", 8 } /* really 0 and non-combinable */
+ };
+
+ for (i = 0; i < 2; i++)
+ buf[i] = isascii (s[i]) ? tolower (s[i]) : 0;
+
+ for (i = sizeof (psrmods) / sizeof (psrmods[0]); i--;)
+ {
+ if (! strncmp (psrmods[i].name, buf, 2))
+ {
+ * reg = psrmods[i].value;
+
+ return s + 2;
+ }
+ }
+
+ as_bad (_("bad/missing psr specifier"));
+
+ * reg = 0;
+
+ return s;
+}
+
+static char *
parse_exp (s, e)
char * s;
expressionS * e;
@@ -713,7 +754,7 @@ check_literals (kind, offset)
if (poolspan > SPANCLOSE && kind > 0)
dump_literals (0);
- else if (poolspan > SPANEXIT && kind > 1)
+ else if (/* poolspan > SPANEXIT &&*/ kind > 1)
dump_literals (0);
else if (poolspan >= (SPANPANIC - poolsize * 2))
dump_literals (1);
@@ -1594,6 +1635,29 @@ md_assemble (str)
output = frag_more (2);
break;
+ case OPSR:
+ op_end = parse_psrmod (op_end + 1, & reg);
+
+ /* Look for further selectors. */
+ while (* op_end == ',')
+ {
+ unsigned value;
+
+ op_end = parse_psrmod (op_end + 1, & value);
+
+ if (value & reg)
+ as_bad (_("duplicated psr bit specifier"));
+
+ reg |= value;
+ }
+
+ if (reg > 8)
+ as_bad (_("`af' must appear alone"));
+
+ inst |= (reg & 0x7);
+ output = frag_more (2);
+ break;
+
default:
as_bad (_("unimplemented opcode \"%s\""), name);
}