Toolchain/binutils-gdb
1
0
Fork 0
forked from Imagelibrary/binutils-gdb
Code Pull Requests Activity

Apply patch supplied for case 102229 to implement new insns psrclr and psrset.

Browse Source
This commit is contained in:
Nick Clifton
1999-10-25 15:28:44 +00:00
parent f084181a5b
commit 9cac79d30b
4 changed files with 143 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
gas/config/tc-mcore.c
View File

@@ -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;
@@ -588,6 +589,46 @@ parse_creg (s, reg)
return s;
}
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;
@@ -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);
}