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-rw-r--r--opcodes/z8k-dis.c569
1 files changed, 0 insertions, 569 deletions
diff --git a/opcodes/z8k-dis.c b/opcodes/z8k-dis.c
deleted file mode 100644
index 858d5a2..0000000
--- a/opcodes/z8k-dis.c
+++ /dev/null
@@ -1,569 +0,0 @@
-/*
-This file is part of GNU Binutils.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <ansidecl.h>
-#include "sysdep.h"
-#include "dis-asm.h"
-
-#define DEFINE_TABLE
-#include "z8k-opc.h"
-
-
-#include <setjmp.h>
-
-
-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 char bytes[24];
- unsigned short words[24];
-
- /* Nibble number of first word not yet fetched. */
- int max_fetched;
- bfd_vma insn_start;
- jmp_buf bailout;
-
- long tabl_index;
- char instr_asmsrc[80];
- unsigned long arg_reg[0x0f];
- unsigned long immediate;
- unsigned long displacement;
- unsigned long address;
- unsigned long cond_code;
- unsigned long ctrl_code;
- unsigned long flags;
- unsigned long interrupts;
-}
-instr_data_s;
-
-/* 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 \
- ? 1 : fetch_data ((info), (nibble)))
-
-static int
-fetch_data (info, nibble)
- struct disassemble_info *info;
- int nibble;
-{
- unsigned char mybuf[20];
- int status;
- instr_data_s *priv = (instr_data_s *)info->private_data;
- bfd_vma start = priv->insn_start + priv->max_fetched / 2;
-
- if ((nibble % 4) != 0)
- abort ();
- status = (*info->read_memory_func) (start,
- (bfd_byte *) mybuf,
- (nibble - priv->max_fetched) / 2,
- info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, start, info);
- longjmp (priv->bailout, 1);
- }
-
- {
- int i;
- char *p = mybuf + priv->max_fetched / 2;
-
- for (i = priv->max_fetched; i < nibble;)
- {
- priv->words[i] = (p[0] << 8) | p[1];
-
- priv->bytes[i] = *p;
- priv->nibbles[i++] = *p >> 4;
- priv->nibbles[i++] = *p &0xf;
-
- ++p;
- priv->bytes[i] = *p;
- priv->nibbles[i++] = *p >> 4;
- priv->nibbles[i++] = *p & 0xf;
-
- ++p;
- }
- }
- priv->max_fetched = nibble;
- return 1;
-}
-
-static char *codes[16] =
-{
- "f",
- "lt",
- "le",
- "ule",
- "ov/pe",
- "mi",
- "eq",
- "c/ult",
- "t",
- "ge",
- "gt",
- "ugt",
- "nov/po",
- "pl",
- "ne",
- "nc/uge"
-};
-
-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 *));
-
-static int
-print_insn_z8k (addr, info, is_segmented)
- unsigned long addr;
- disassemble_info *info;
- int is_segmented;
-{
- instr_data_s instr_data;
-
- info->private_data = (PTR) &instr_data;
- instr_data.max_fetched = 0;
- instr_data.insn_start = addr;
- if (setjmp (instr_data.bailout) != 0)
- /* Error return. */
- return -1;
-
- instr_data.tabl_index = z8k_lookup_instr (instr_data.nibbles, info);
- if (instr_data.tabl_index > 0)
- {
- unpack_instr (&instr_data, is_segmented, info);
- unparse_instr (&instr_data);
- output_instr (&instr_data, addr, info);
- return z8k_table[instr_data.tabl_index].length;
- }
- else
- {
- FETCH_DATA (info, 4);
- (*info->fprintf_func) (info->stream, ".word %02x%02x",
- instr_data.bytes[0], instr_data.bytes[2]);
- return 2;
- }
-}
-
-print_insn_z8001 (addr, info)
- unsigned long addr;
- disassemble_info *info;
-{
- return print_insn_z8k (addr, info, 1);
-}
-
-print_insn_z8002 (addr, info)
- unsigned long addr;
- disassemble_info *info;
-{
- return print_insn_z8k (addr, info, 0);
-}
-
-int
-z8k_lookup_instr (nibbles, info)
- unsigned char *nibbles;
- disassemble_info *info;
-{
-
- int nibl_index, tabl_index;
- int nibl_matched;
- unsigned short instr_nibl;
- unsigned short tabl_datum, datum_class, datum_value;
-
- nibl_matched = 0;
- tabl_index = 0;
- while (!nibl_matched && z8k_table[tabl_index].name)
- {
- nibl_matched = 1;
- for (nibl_index = 0; nibl_index < z8k_table[tabl_index].length * 2 && nibl_matched; nibl_index++)
- {
- if ((nibl_index % 4) == 0)
- /* Fetch one word at a time. */
- FETCH_DATA (info, nibl_index + 4);
- instr_nibl = nibbles[nibl_index];
-
- tabl_datum = z8k_table[tabl_index].byte_info[nibl_index];
- datum_class = tabl_datum & CLASS_MASK;
- datum_value = ~CLASS_MASK & tabl_datum;
-
- switch (datum_class)
- {
- case CLASS_BIT:
- if (datum_value != instr_nibl)
- nibl_matched = 0;
- break;
- case CLASS_00II:
- if (!((~instr_nibl) & 0x4))
- nibl_matched = 0;
- break;
- case CLASS_01II:
- if (!(instr_nibl & 0x4))
- nibl_matched = 0;
- break;
- case CLASS_0CCC:
- if (!((~instr_nibl) & 0x8))
- nibl_matched = 0;
- break;
- case CLASS_1CCC:
- if (!(instr_nibl & 0x8))
- nibl_matched = 0;
- break;
- case CLASS_0DISP7:
- if (!((~instr_nibl) & 0x8))
- nibl_matched = 0;
- nibl_index += 1;
- break;
- case CLASS_1DISP7:
- if (!(instr_nibl & 0x8))
- nibl_matched = 0;
- nibl_index += 1;
- break;
- case CLASS_REGN0:
- if (instr_nibl == 0)
- nibl_matched = 0;
- break;
- case CLASS_BIT_1OR2:
- if ((instr_nibl | 0x2) != (datum_value | 0x2))
- nibl_matched = 0;
- break;
- default:
- break;
- }
- }
- if (nibl_matched)
- {
- return tabl_index;
- }
-
- tabl_index++;
- }
- return -1;
-
-}
-
-static void
-output_instr (instr_data, addr, info)
- instr_data_s *instr_data;
- unsigned long addr;
- disassemble_info *info;
-{
- int loop, loop_limit;
- char tmp_str[20];
- char out_str[100];
-
- strcpy (out_str, "\t");
-
- loop_limit = z8k_table[instr_data->tabl_index].length * 2;
- FETCH_DATA (info, loop_limit);
- for (loop = 0; loop < loop_limit; loop++)
- {
- sprintf (tmp_str, "%x", instr_data->nibbles[loop]);
- strcat (out_str, tmp_str);
- }
-
- while (loop++ < 8)
- {
- strcat (out_str, " ");
- }
-
- strcat (out_str, instr_data->instr_asmsrc);
-
- (*info->fprintf_func) (info->stream, "%s", out_str);
-}
-
-static void
-unpack_instr (instr_data, is_segmented, info)
- instr_data_s *instr_data;
- int is_segmented;
- disassemble_info *info;
-{
- int nibl_count, loop;
- unsigned short instr_nibl, instr_byte, instr_word;
- long instr_long;
- unsigned short tabl_datum, datum_class, datum_value;
-
- nibl_count = 0;
- loop = 0;
- while (z8k_table[instr_data->tabl_index].byte_info[loop] != 0)
- {
- FETCH_DATA (info, nibl_count + 4 - (nibl_count % 4));
- instr_nibl = instr_data->nibbles[nibl_count];
- instr_byte = instr_data->bytes[nibl_count];
- instr_word = instr_data->words[nibl_count];
-
- tabl_datum = z8k_table[instr_data->tabl_index].byte_info[loop];
- datum_class = tabl_datum & CLASS_MASK;
- datum_value = 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_word;
- nibl_count += 3;
- break;
- case ARG_DISP12:
- instr_data->displacement = instr_word & 0x0fff;
- nibl_count += 2;
- break;
- default:
- break;
- }
- break;
- case CLASS_IMM:
- switch (datum_value)
- {
- case ARG_IMM4:
- instr_data->immediate = instr_nibl;
- break;
- case ARG_NIM8:
- instr_data->immediate = (-instr_byte);
- nibl_count += 1;
- break;
- case ARG_IMM8:
- instr_data->immediate = instr_byte;
- nibl_count += 1;
- break;
- case ARG_IMM16:
- instr_data->immediate = instr_word;
- nibl_count += 3;
- break;
- case ARG_IMM32:
- FETCH_DATA (info, nibl_count + 8);
- instr_long = (instr_data->words[nibl_count] << 16)
- | (instr_data->words[nibl_count + 4]);
- instr_data->immediate = instr_long;
- nibl_count += 7;
- break;
- case ARG_IMMN:
- instr_data->immediate = instr_nibl - 1;
- break;
- /* ????? */
- /* missing ARG_IMMNMINUS1 */
- case ARG_IMM_1:
- instr_data->immediate = 1;
- break;
- case ARG_IMM_2:
- instr_data->immediate = 2;
- break;
- case ARG_IMM2:
- instr_data->immediate = instr_nibl & 0x3;
- break;
- default:
- break;
- }
- break;
- case CLASS_CC:
- instr_data->cond_code = instr_nibl;
- break;
- case CLASS_CTRL:
- instr_data->ctrl_code = instr_nibl;
- break;
- case CLASS_DA:
- case CLASS_ADDRESS:
- if (is_segmented)
- {
- if (instr_nibl & 0x8)
- {
- 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);
- nibl_count += 7;
- }
- else
- {
- instr_data->address = ((instr_word & 0x7f00) << 8) +
- (instr_word & 0x00ff);
- nibl_count += 3;
- }
- }
- else
- {
- instr_data->address = instr_word;
- nibl_count += 3;
- }
- break;
- case CLASS_0CCC:
- instr_data->cond_code = instr_nibl & 0x7;
- break;
- case CLASS_1CCC:
- instr_data->cond_code = instr_nibl & 0x7;
- break;
- case CLASS_0DISP7:
- instr_data->displacement = instr_byte & 0x7f;
- nibl_count += 1;
- break;
- case CLASS_1DISP7:
- instr_data->displacement = instr_byte & 0x7f;
- nibl_count += 1;
- break;
- case CLASS_01II:
- instr_data->interrupts = instr_nibl & 0x3;
- break;
- case CLASS_00II:
- instr_data->interrupts = instr_nibl & 0x3;
- break;
- case CLASS_BIT:
- /* do nothing */
- 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;
- default:
- break;
- }
-
- loop += 1;
- nibl_count += 1;
- }
-}
-
-static void
-unparse_instr (instr_data)
- instr_data_s *instr_data;
-{
- unsigned short tabl_datum, datum_class, datum_value;
- int loop, loop_limit;
- char out_str[80], tmp_str[25];
-
- sprintf (out_str, "\t%s\t", z8k_table[instr_data->tabl_index].name);
-
- loop_limit = z8k_table[instr_data->tabl_index].noperands;
- for (loop = 0; loop < loop_limit; loop++)
- {
- if (loop)
- strcat (out_str, ",");
-
- tabl_datum = z8k_table[instr_data->tabl_index].arg_info[loop];
- datum_class = tabl_datum & CLASS_MASK;
- datum_value = tabl_datum & ~CLASS_MASK;
-
- switch (datum_class)
- {
- case CLASS_X:
- sprintf (tmp_str, "0x%0x(R%d)", instr_data->address,
- instr_data->arg_reg[datum_value]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_BA:
- sprintf (tmp_str, "r%d(#%x)", instr_data->arg_reg[datum_value],
- instr_data->immediate);
- strcat (out_str, tmp_str);
- break;
- case CLASS_BX:
- sprintf (tmp_str, "r%d(R%d)", instr_data->arg_reg[datum_value],
- instr_data->arg_reg[ARG_RX]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_DISP:
- sprintf (tmp_str, "#0x%0x", instr_data->displacement);
- strcat (out_str, tmp_str);
- break;
- case CLASS_IMM:
- sprintf (tmp_str, "#0x%0x", instr_data->immediate);
- strcat (out_str, tmp_str);
- break;
- case CLASS_CC:
- sprintf (tmp_str, "%s", codes[instr_data->cond_code]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_CTRL:
- sprintf (tmp_str, "0x%0x", instr_data->ctrl_code);
- strcat (out_str, tmp_str);
- break;
- case CLASS_DA:
- case CLASS_ADDRESS:
- sprintf (tmp_str, "#0x%0x", instr_data->address);
- strcat (out_str, tmp_str);
- break;
- case CLASS_IR:
- sprintf (tmp_str, "@R%d", instr_data->arg_reg[datum_value]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_FLAGS:
- sprintf (tmp_str, "0x%0x", instr_data->flags);
- strcat (out_str, tmp_str);
- break;
- case CLASS_REG_BYTE:
- if (instr_data->arg_reg[datum_value] >= 0x8)
- {
- sprintf (tmp_str, "rl%d",
- instr_data->arg_reg[datum_value] - 0x8);
- }
- else
- {
- sprintf (tmp_str, "rh%d", instr_data->arg_reg[datum_value]);
- }
- strcat (out_str, tmp_str);
- break;
- case CLASS_REG_WORD:
- sprintf (tmp_str, "r%d", instr_data->arg_reg[datum_value]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_REG_QUAD:
- sprintf (tmp_str, "rq%d", instr_data->arg_reg[datum_value]);
- strcat (out_str, tmp_str);
- break;
- case CLASS_REG_LONG:
- sprintf (tmp_str, "rr%d", instr_data->arg_reg[datum_value]);
- strcat (out_str, tmp_str);
- break;
- default:
- break;
- }
- }
-
- strcpy (instr_data->instr_asmsrc, out_str);
-}
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