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Diffstat (limited to 'opcodes/m32r-dis.c')
-rw-r--r--opcodes/m32r-dis.c101
1 files changed, 82 insertions, 19 deletions
diff --git a/opcodes/m32r-dis.c b/opcodes/m32r-dis.c
index d6d5377..9b0397f 100644
--- a/opcodes/m32r-dis.c
+++ b/opcodes/m32r-dis.c
@@ -263,12 +263,21 @@ m32r_cgen_init_dis (cd)
static void
print_normal (cd, dis_info, value, attrs, pc, length)
+#ifdef CGEN_PRINT_NORMAL
CGEN_CPU_DESC cd;
+#else
+ CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
+#endif
PTR dis_info;
long value;
unsigned int attrs;
+#ifdef CGEN_PRINT_NORMAL
bfd_vma pc;
int length;
+#else
+ bfd_vma pc ATTRIBUTE_UNUSED;
+ int length ATTRIBUTE_UNUSED;
+#endif
{
disassemble_info *info = (disassemble_info *) dis_info;
@@ -289,12 +298,21 @@ print_normal (cd, dis_info, value, attrs, pc, length)
static void
print_address (cd, dis_info, value, attrs, pc, length)
+#ifdef CGEN_PRINT_NORMAL
CGEN_CPU_DESC cd;
+#else
+ CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
+#endif
PTR dis_info;
bfd_vma value;
unsigned int attrs;
+#ifdef CGEN_PRINT_NORMAL
bfd_vma pc;
int length;
+#else
+ bfd_vma pc ATTRIBUTE_UNUSED;
+ int length ATTRIBUTE_UNUSED;
+#endif
{
disassemble_info *info = (disassemble_info *) dis_info;
@@ -319,11 +337,11 @@ print_address (cd, dis_info, value, attrs, pc, length)
static void
print_keyword (cd, dis_info, keyword_table, value, attrs)
- CGEN_CPU_DESC cd;
+ CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
PTR dis_info;
CGEN_KEYWORD *keyword_table;
long value;
- unsigned int attrs;
+ unsigned int attrs ATTRIBUTE_UNUSED;
{
disassemble_info *info = (disassemble_info *) dis_info;
const CGEN_KEYWORD_ENTRY *ke;
@@ -374,43 +392,70 @@ print_insn_normal (cd, dis_info, insn, fields, pc, length)
}
}
-/* Utility to print an insn.
- BUF is the base part of the insn, target byte order, BUFLEN bytes long.
- The result is the size of the insn in bytes or zero for an unknown insn
- or -1 if an error occurs fetching data (memory_error_func will have
- been called). */
-
+/* Subroutine of print_insn. Reads an insn into the given buffers and updates
+ the extract info.
+ Returns 0 if all is well, non-zero otherwise. */
static int
-print_insn (cd, pc, info, buf, buflen)
+read_insn (cd, pc, info, buf, buflen, ex_info, insn_value)
CGEN_CPU_DESC cd;
bfd_vma pc;
disassemble_info *info;
char *buf;
int buflen;
+ CGEN_EXTRACT_INFO *ex_info;
+ unsigned long *insn_value;
{
- unsigned long insn_value;
- const CGEN_INSN_LIST *insn_list;
- CGEN_EXTRACT_INFO ex_info;
+ int status = (*info->read_memory_func) (pc, buf, buflen, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, pc, info);
+ return -1;
+ }
- ex_info.dis_info = info;
- ex_info.valid = (1 << (cd->base_insn_bitsize / 8)) - 1;
- ex_info.insn_bytes = buf;
+ ex_info->dis_info = info;
+ ex_info->valid = (1 << buflen) - 1;
+ ex_info->insn_bytes = buf;
switch (buflen)
{
case 1:
- insn_value = buf[0];
+ *insn_value = buf[0];
break;
case 2:
- insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb16 (buf) : bfd_getl16 (buf);
+ *insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb16 (buf) : bfd_getl16 (buf);
break;
case 4:
- insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb32 (buf) : bfd_getl32 (buf);
+ *insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb32 (buf) : bfd_getl32 (buf);
break;
default:
abort ();
}
+ return 0;
+}
+
+/* Utility to print an insn.
+ BUF is the base part of the insn, target byte order, BUFLEN bytes long.
+ The result is the size of the insn in bytes or zero for an unknown insn
+ or -1 if an error occurs fetching data (memory_error_func will have
+ been called). */
+
+static int
+print_insn (cd, pc, info, buf, buflen)
+ CGEN_CPU_DESC cd;
+ bfd_vma pc;
+ disassemble_info *info;
+ char *buf;
+ int buflen;
+{
+ unsigned long insn_value;
+ const CGEN_INSN_LIST *insn_list;
+ CGEN_EXTRACT_INFO ex_info;
+
+ int rc = read_insn (cd, pc, info, buf, buflen, & ex_info, & insn_value);
+ if (rc != 0)
+ return rc;
+
/* The instructions are stored in hash lists.
Pick the first one and keep trying until we find the right one. */
@@ -441,6 +486,22 @@ print_insn (cd, pc, info, buf, buflen)
machine insn and extracts the fields. The second pass prints
them. */
+#if CGEN_INT_INSN_P
+ /* Make sure the entire insn is loaded into insn_value. */
+ if (CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize)
+ {
+ unsigned long full_insn_value;
+ int rc = read_insn (cd, pc, info, buf,
+ CGEN_INSN_BITSIZE (insn) / 8,
+ & ex_info, & full_insn_value);
+ if (rc != 0)
+ return rc;
+ length = CGEN_EXTRACT_FN (cd, insn)
+ (cd, insn, &ex_info, full_insn_value, &fields, pc);
+ }
+ else
+#endif
+
length = CGEN_EXTRACT_FN (cd, insn)
(cd, insn, &ex_info, insn_value, &fields, pc);
/* length < 0 -> error */
@@ -499,7 +560,9 @@ print_insn_m32r (pc, info)
disassemble_info *info;
{
static CGEN_CPU_DESC cd = 0;
- static prev_isa,prev_mach,prev_endian;
+ static int prev_isa;
+ static int prev_mach;
+ static int prev_endian;
int length;
int isa,mach;
int endian = (info->endian == BFD_ENDIAN_BIG