/* Disassemble z8000 code.
- Copyright 1992, 1993, 1998, 2000
+ Copyright 1992, 1993, 1998, 2000, 2001
Free Software Foundation, Inc.
This file is part of GNU Binutils.
\f
#include <setjmp.h>
\f
-typedef struct
-{
+typedef struct {
/* These are all indexed by nibble number (i.e only every other entry
of bytes is used, and every 4th entry of words). */
unsigned char nibbles[24];
unsigned long ctrl_code;
unsigned long flags;
unsigned long interrupts;
-}
-instr_data_s;
+} instr_data_s;
+
+static int fetch_data PARAMS ((struct disassemble_info *, int));
+
/* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
to ADDR (exclusive) are valid. Returns 1 for success, longjmps
on error. */
#define FETCH_DATA(info, nibble) \
- ((nibble) < ((instr_data_s *)(info->private_data))->max_fetched \
+ ((nibble) < ((instr_data_s *) (info->private_data))->max_fetched \
? 1 : fetch_data ((info), (nibble)))
static int
return 1;
}
-static char *codes[16] =
-{
+static char *codes[16] = {
"f",
"lt",
"le",
"nc/uge"
};
-static char *ctrl_names[8] =
-{
+static char *ctrl_names[8] = {
"<invld>",
"flags",
"fcw",
};
static int seg_length;
+static int print_insn_z8k PARAMS ((bfd_vma, disassemble_info *, int));
int z8k_lookup_instr PARAMS ((unsigned char *, disassemble_info *));
static void output_instr
PARAMS ((instr_data_s *, unsigned long, disassemble_info *));
static void unpack_instr PARAMS ((instr_data_s *, int, disassemble_info *));
-static void unparse_instr PARAMS ((instr_data_s *,int));
+static void unparse_instr PARAMS ((instr_data_s *, int));
static int
print_insn_z8k (addr, info, is_segmented)
tabl_index++;
}
return -1;
-
}
static void
output_instr (instr_data, addr, info)
instr_data_s *instr_data;
- unsigned long addr;
+ unsigned long addr ATTRIBUTE_UNUSED;
disassemble_info *info;
{
int loop, loop_limit;
{
FETCH_DATA (info, nibl_count + 4 - (nibl_count % 4));
instr_nibl = instr_data->nibbles[nibl_count];
- instr_byte = instr_data->bytes[nibl_count&~1];
- instr_word = instr_data->words[nibl_count&~3];
+ instr_byte = instr_data->bytes[nibl_count & ~1];
+ instr_word = instr_data->words[nibl_count & ~3];
tabl_datum = z8k_table[instr_data->tabl_index].byte_info[loop];
datum_class = tabl_datum & CLASS_MASK;
switch (datum_class)
{
- case CLASS_X:
- instr_data->address = instr_nibl;
- break;
- case CLASS_BA:
- instr_data->displacement = instr_nibl;
- break;
- case CLASS_BX:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
case CLASS_DISP:
switch (datum_value)
{
case ARG_DISP16:
- instr_data->displacement = instr_data->insn_start + 4 +
- (signed short)(instr_word & 0xffff);
+ instr_data->displacement = instr_data->insn_start + 4
+ + (signed short) (instr_word & 0xffff);
nibl_count += 3;
break;
case ARG_DISP12:
- if (instr_word & 0x800) { /* neg. 12 bit displacement */
- instr_data->displacement = instr_data->insn_start + 2 -
- (signed short)((instr_word & 0xfff) | 0xf000) * 2;
- }
- else {
- instr_data->displacement = instr_data->insn_start + 2 - (instr_word & 0x0fff) * 2;
- }
+ if (instr_word & 0x800)
+ {
+ /* neg. 12 bit displacement */
+ instr_data->displacement = instr_data->insn_start + 2
+ - (signed short) ((instr_word & 0xfff) | 0xf000) * 2;
+ }
+ else
+ {
+ instr_data->displacement = instr_data->insn_start + 2
+ - (instr_word & 0x0fff) * 2;
+ }
nibl_count += 2;
break;
default:
case CLASS_CC:
instr_data->cond_code = instr_nibl;
break;
-#if 0
- case CLASS_CTRL:
- instr_data->ctrl_code = instr_nibl;
- break;
-#endif
- case CLASS_DA:
case CLASS_ADDRESS:
if (is_segmented)
{
FETCH_DATA (info, nibl_count + 8);
instr_long = (instr_data->words[nibl_count] << 16)
| (instr_data->words[nibl_count + 4]);
- instr_data->address = ((instr_word & 0x7f00) << 8) +
- (instr_long & 0xffff);
+ instr_data->address = ((instr_word & 0x7f00) << 8)
+ + (instr_long & 0xffff);
nibl_count += 7;
- seg_length = 2;
+ seg_length = 2;
}
else
{
- instr_data->address = ((instr_word & 0x7f00) << 8) +
- (instr_word & 0x00ff);
+ instr_data->address = ((instr_word & 0x7f00) << 8)
+ + (instr_word & 0x00ff);
nibl_count += 3;
}
}
instr_data->ctrl_code = instr_nibl & 0x7;
break;
case CLASS_0DISP7:
- instr_data->displacement = instr_data->insn_start + 2 - (instr_byte & 0x7f) * 2;
+ instr_data->displacement =
+ instr_data->insn_start + 2 - (instr_byte & 0x7f) * 2;
nibl_count += 1;
break;
case CLASS_1DISP7:
- instr_data->displacement = instr_data->insn_start + 2 - (instr_byte & 0x7f) * 2;
+ instr_data->displacement =
+ instr_data->insn_start + 2 - (instr_byte & 0x7f) * 2;
nibl_count += 1;
break;
case CLASS_01II:
case CLASS_BIT:
instr_data->ctrl_code = instr_nibl & 0x7;
break;
- case CLASS_IR:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
case CLASS_FLAGS:
instr_data->flags = instr_nibl;
break;
case CLASS_REG:
instr_data->arg_reg[datum_value] = instr_nibl;
break;
- case CLASS_REG_BYTE:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
- case CLASS_REG_WORD:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
- case CLASS_REG_QUAD:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
- case CLASS_REG_LONG:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
case CLASS_REGN0:
instr_data->arg_reg[datum_value] = instr_nibl;
break;
- case CLASS_PR:
- instr_data->arg_reg[datum_value] = instr_nibl;
- break;
- case CLASS_DISP8:
- instr_data->displacement = instr_data->insn_start + 2 + (signed char)instr_byte * 2;
+ case CLASS_DISP8:
+ instr_data->displacement =
+ instr_data->insn_start + 2 + (signed char) instr_byte * 2;
nibl_count += 1;
- break;
+ break;
default:
+ abort ();
break;
}
}
static void
-unparse_instr (instr_data,is_segmented)
+unparse_instr (instr_data, is_segmented)
instr_data_s *instr_data;
int is_segmented;
{
strcat (out_str, tmp_str);
break;
case CLASS_IR:
- sprintf (tmp_str, "@R%ld", instr_data->arg_reg[datum_value]);
+ if (is_segmented)
+ sprintf (tmp_str, "@rr%ld", instr_data->arg_reg[datum_value]);
+ else
+ sprintf (tmp_str, "@r%ld", instr_data->arg_reg[datum_value]);
strcat (out_str, tmp_str);
break;
case CLASS_FLAGS:
break;
case CLASS_REG_BYTE:
if (instr_data->arg_reg[datum_value] >= 0x8)
- {
- sprintf (tmp_str, "rl%ld",
- instr_data->arg_reg[datum_value] - 0x8);
- }
+ sprintf (tmp_str, "rl%ld",
+ instr_data->arg_reg[datum_value] - 0x8);
else
- {
- sprintf (tmp_str, "rh%ld", instr_data->arg_reg[datum_value]);
- }
+ sprintf (tmp_str, "rh%ld", instr_data->arg_reg[datum_value]);
strcat (out_str, tmp_str);
break;
case CLASS_REG_WORD:
strcat (out_str, tmp_str);
break;
case CLASS_PR:
- if (is_segmented)
- sprintf (tmp_str, "rr%ld", instr_data->arg_reg[datum_value]);
- else
- sprintf (tmp_str, "r%ld", instr_data->arg_reg[datum_value]);
+ if (is_segmented)
+ sprintf (tmp_str, "rr%ld", instr_data->arg_reg[datum_value]);
+ else
+ sprintf (tmp_str, "r%ld", instr_data->arg_reg[datum_value]);
strcat (out_str, tmp_str);
break;
default:
+ abort ();
break;
}
}
projects / deliverable / binutils-gdb.git / blobdiff