-#include <stdio.h>
+/* Disassemble z8000 code.
+ Copyright (C) 1992-2020 Free Software Foundation, Inc.
+
+ This file is part of the GNU opcodes library.
+
+ This library 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 3, or (at your option)
+ any later version.
+
+ It 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 file; see the file COPYING. If not, write to the
+ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "sysdep.h"
+#include "disassemble.h"
+#include "libiberty.h"
+
#define DEFINE_TABLE
#include "z8k-opc.h"
-static void fetch_data();
-static void fetch_instr();
-static unsigned long get_val();
-static int is_segmented();
-static int lookup_instr();
-static void output_instr();
-static void unpack_instr();
-static void unparse_instr();
-
-typedef struct {
- unsigned char instr_buf[24];
- unsigned long bytes_fetched;
- unsigned long tabl_index;
- unsigned 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;
-
-
-static char *codes[16] =
+#include <setjmp.h>
+
+typedef struct
{
- "f",
- "lt",
- "le",
- "ule",
- "ov/pe",
- "mi",
- "eq",
- "c/ult",
- "t",
- "ge",
- "gt",
- "ugt",
- "nov/po",
- "pl",
- "ne",
- "nc/uge"
-};
-
-
-int print_insn_z8k(addr, in_buf, stream)
-unsigned long addr;
-unsigned char *in_buf;
-FILE *stream;
+ /* 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. */
+ unsigned int max_fetched;
+ bfd_vma insn_start;
+ OPCODES_SIGJMP_BUF bailout;
+
+ int 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 (struct disassemble_info *info, int nibble)
{
- instr_data_s instr_data;
+ unsigned char mybuf[20];
+ int status;
+ instr_data_s *priv = (instr_data_s *) info->private_data;
+
+ if ((nibble % 4) != 0)
+ abort ();
+
+ status = (*info->read_memory_func) (priv->insn_start,
+ (bfd_byte *) mybuf,
+ nibble / 2,
+ info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, priv->insn_start, info);
+ OPCODES_SIGLONGJMP (priv->bailout, 1);
+ }
- fetch_instr( &in_buf, &instr_data );
- if ( lookup_instr( &instr_data ))
{
- fetch_data( &in_buf, &instr_data );
- unpack_instr( &instr_data );
- unparse_instr( &instr_data );
- output_instr( &instr_data, addr, stream );
- return instr_data.bytes_fetched;
- }
- else {
- fprintf(stream,".word %02x%02x", in_buf[0], in_buf[1]);
- return 2;
- }
+ int i;
+ unsigned char *p = mybuf;
-}
+ for (i = 0; i < nibble;)
+ {
+ priv->words[i] = (p[0] << 8) | p[1];
+ priv->bytes[i] = *p;
+ priv->nibbles[i++] = *p >> 4;
+ priv->nibbles[i++] = *p & 0xf;
-static void fetch_data( in_buf, instr_data )
-unsigned char **in_buf;
-instr_data_s *instr_data;
-{
- int bytes_2fetch;
+ ++p;
+ priv->bytes[i] = *p;
+ priv->nibbles[i++] = *p >> 4;
+ priv->nibbles[i++] = *p & 0xf;
- bytes_2fetch = z8k_table[instr_data->tabl_index].length -
- instr_data->bytes_fetched;
- while( bytes_2fetch-- )
- instr_data->instr_buf[instr_data->bytes_fetched++] = *(*in_buf)++;
+ ++p;
+ }
+ }
+ priv->max_fetched = nibble;
+ return 1;
}
-static void fetch_instr( in_buf, instr_data )
-unsigned char **in_buf;
-instr_data_s *instr_data;
+static char *codes[16] =
+ {
+ "f",
+ "lt",
+ "le",
+ "ule",
+ "ov/pe",
+ "mi",
+ "eq",
+ "c/ult",
+ "t",
+ "ge",
+ "gt",
+ "ugt",
+ "nov/po",
+ "pl",
+ "ne",
+ "nc/uge"
+ };
+
+static char *ctrl_names[8] =
+ {
+ "<invld>",
+ "flags",
+ "fcw",
+ "refresh",
+ "psapseg",
+ "psapoff",
+ "nspseg",
+ "nspoff"
+ };
+
+static int seg_length;
+int z8k_lookup_instr (unsigned char *, disassemble_info *);
+static void output_instr (instr_data_s *, unsigned long, disassemble_info *);
+static void unpack_instr (instr_data_s *, int, disassemble_info *);
+static void unparse_instr (instr_data_s *, int);
+
+static int
+print_insn_z8k (bfd_vma addr, disassemble_info *info, int is_segmented)
{
- unsigned int loop = 2;
+ instr_data_s instr_data;
+
+ info->private_data = (PTR) &instr_data;
+ instr_data.max_fetched = 0;
+ instr_data.insn_start = addr;
+ if (OPCODES_SIGSETJMP (instr_data.bailout) != 0)
+ /* Error return. */
+ return -1;
- instr_data->bytes_fetched = 0;
- while( loop-- )
- instr_data->instr_buf[instr_data->bytes_fetched++] = *(*in_buf)++;
+ info->bytes_per_chunk = 2;
+ info->bytes_per_line = 6;
+ info->display_endian = BFD_ENDIAN_BIG;
+ 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, is_segmented);
+ output_instr (&instr_data, addr, info);
+ return z8k_table[instr_data.tabl_index].length + seg_length;
+ }
+ else
+ {
+ FETCH_DATA (info, 4);
+ (*info->fprintf_func) (info->stream, ".word %02x%02x",
+ instr_data.bytes[0], instr_data.bytes[2]);
+ return 2;
+ }
}
-static unsigned long get_val( instr_buf, start_nibl, nibls_long )
-unsigned char (*instr_buf)[];
-unsigned int start_nibl, nibls_long;
+int
+print_insn_z8001 (bfd_vma addr, disassemble_info *info)
{
- unsigned long ret_val;
- unsigned char byte_val, nibl_val;
- unsigned int nibl_index, nibl_lim;
- unsigned int byte_index;
- unsigned int which_nibl;
-
- ret_val = 0;
- nibl_lim = start_nibl + nibls_long;
- for( nibl_index = start_nibl; nibl_index < nibl_lim; nibl_index++ )
- {
- byte_index = nibl_index / 2;
- which_nibl = nibl_index % 2;
- switch( which_nibl )
- {
- case 0:
- byte_val = (*instr_buf)[byte_index];
- nibl_val = (byte_val >> 4) & 0x0f;
- break;
- case 1:
- nibl_val = byte_val & 0x0f;
- break;
- }
- ret_val = (ret_val << 4) | nibl_val;
- }
-
- return ret_val;
-
+ return print_insn_z8k (addr, info, 1);
}
-static int is_segmented()
+int
+print_insn_z8002 (bfd_vma addr, disassemble_info *info)
{
- return 1;
+ return print_insn_z8k (addr, info, 0);
}
-static
-int lookup_instr( instr_data )
-instr_data_s *instr_data;
+int
+z8k_lookup_instr (unsigned char *nibbles, disassemble_info *info)
{
-
- int nibl_index, tabl_index;
- int tablent_found, nibl_matched;
+ unsigned int nibl_index, tabl_index;
+ int nibl_matched;
+ int need_fetch = 0;
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 < 4 && nibl_matched; nibl_index++ )
+ FETCH_DATA (info, 4);
+ while (!nibl_matched && z8k_table[tabl_index].name)
{
- instr_nibl = get_val( instr_data->instr_buf, nibl_index, 1 );
-
- 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;
- default:
- break;
- }
+ nibl_matched = 1;
+ for (nibl_index = 0;
+ nibl_matched
+ && nibl_index < ARRAY_SIZE (z8k_table[0].byte_info)
+ && nibl_index < z8k_table[tabl_index].length * 2;
+ nibl_index++)
+ {
+ if ((nibl_index % 4) == 0)
+ {
+ /* Fetch data only if it isn't already there. */
+ if (nibl_index >= 4 || (nibl_index < 4 && need_fetch))
+ FETCH_DATA (info, nibl_index + 4); /* Fetch one word at a time. */
+ if (nibl_index < 4)
+ need_fetch = 0;
+ else
+ need_fetch = 1;
+ }
+ 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_IGNORE:
+ 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++;
}
- tabl_index++;
- }
-
-
- instr_data->tabl_index = tabl_index;
-
- return nibl_matched;
-
+ return -1;
}
-static void output_instr( instr_data, addr, stream )
-instr_data_s *instr_data;
-unsigned long addr;
-FILE *stream;
+static void
+output_instr (instr_data_s *instr_data,
+ unsigned long addr ATTRIBUTE_UNUSED,
+ disassemble_info *info)
{
- int loop, loop_limit;
- unsigned long word_val;
- char tmp_str[20];
- char out_str[100];
+ unsigned int num_bytes;
+ char out_str[100];
- strcpy( out_str, "" );
+ out_str[0] = 0;
- loop_limit = z8k_table[instr_data->tabl_index].length / 2;
- for( loop = 0; loop < loop_limit; loop++ )
- {
- word_val = get_val( instr_data->instr_buf, loop * 4, 4 );
- sprintf( tmp_str, "%04x ", word_val );
- strcat( out_str, tmp_str );
- }
+ num_bytes = (z8k_table[instr_data->tabl_index].length + seg_length) * 2;
+ FETCH_DATA (info, num_bytes);
- while( loop++ < 5 )
- {
- strcat( out_str, " " );
- }
+ strcat (out_str, instr_data->instr_asmsrc);
- strcat( out_str, instr_data->instr_asmsrc );
-
- fprintf( stream, "%s", out_str );
+ (*info->fprintf_func) (info->stream, "%s", out_str);
}
-static void unpack_instr( instr_data )
-instr_data_s *instr_data;
+static void
+unpack_instr (instr_data_s *instr_data, int is_segmented, disassemble_info *info)
{
- int nibl_index, word_index;
- int nibl_count, loop;
- unsigned short instr_nibl, instr_byte, instr_word, 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 )
- {
- word_index = (int) nibl_count / 4;
- nibl_index = (int) nibl_count % 4;
-
- switch( nibl_index )
- {
- case 0:
- instr_nibl = get_val( instr_data->instr_buf, nibl_count, 1 );
- instr_byte = get_val( instr_data->instr_buf, nibl_count, 2 );
- instr_word = get_val( instr_data->instr_buf, nibl_count, 4 );
- instr_long = get_val( instr_data->instr_buf, nibl_count, 8 );
- break;
- case 1:
- instr_nibl = get_val( instr_data->instr_buf, nibl_count, 1 );
- break;
- case 2:
- instr_nibl = get_val( instr_data->instr_buf, nibl_count, 1 );
- instr_byte = get_val( instr_data->instr_buf, nibl_count, 2 );
- break;
- case 3:
- instr_nibl = get_val( instr_data->instr_buf, nibl_count, 1 );
- break;
- default:
- break;
- }
+ unsigned int nibl_count, loop;
+ unsigned short instr_nibl, instr_byte, instr_word;
+ long instr_long;
+ unsigned int tabl_datum, datum_class;
+ unsigned short datum_value;
+
+ nibl_count = 0;
+ loop = 0;
+ seg_length = 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 & ~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;
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_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:
- 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_NIM16:
- instr_data->immediate = (- instr_word);
- nibl_count += 3;
- 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 )
- {
- 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;
- }
+ switch (datum_class)
+ {
+ case CLASS_DISP:
+ switch (datum_value)
+ {
+ case ARG_DISP16:
+ instr_data->displacement = instr_data->insn_start + 4
+ + (signed short) (instr_word & 0xffff);
+ nibl_count += 3;
+ break;
+ case ARG_DISP12:
+ if (instr_word & 0x800)
+ /* Negative 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:
+ break;
+ }
+ break;
+ case CLASS_IMM:
+ switch (datum_value)
+ {
+ case ARG_IMM4:
+ instr_data->immediate = instr_nibl;
+ break;
+ case ARG_NIM4:
+ instr_data->immediate = (- instr_nibl) & 0xf;
+ break;
+ case ARG_NIM8:
+ instr_data->immediate = (- instr_byte) & 0xff;
+ 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 = ((unsigned) 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;
+ case ARG_IMM4M1:
+ instr_data->immediate = instr_nibl + 1;
+ break;
+ 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_ADDRESS:
+ if (is_segmented)
+ {
+ if (instr_nibl & 0x8)
+ {
+ FETCH_DATA (info, nibl_count + 8);
+ instr_long = ((unsigned) instr_data->words[nibl_count] << 16
+ | instr_data->words[nibl_count + 4]);
+ instr_data->address = ((instr_word & 0x7f00) << 16
+ | (instr_long & 0xffff));
+ nibl_count += 7;
+ seg_length = 2;
+ }
+ else
+ {
+ instr_data->address = ((instr_word & 0x7f00) << 16
+ | (instr_word & 0x00ff));
+ nibl_count += 3;
+ }
+ }
+ else
+ {
+ instr_data->address = instr_word;
+ nibl_count += 3;
+ }
+ break;
+ case CLASS_0CCC:
+ case CLASS_1CCC:
+ instr_data->ctrl_code = instr_nibl & 0x7;
+ break;
+ case CLASS_0DISP7:
+ 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;
+ 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_IGNORE:
+ case CLASS_BIT:
+ instr_data->ctrl_code = instr_nibl & 0x7;
+ break;
+ case CLASS_FLAGS:
+ instr_data->flags = instr_nibl;
+ break;
+ case CLASS_REG:
+ instr_data->arg_reg[datum_value] = instr_nibl;
+ break;
+ case CLASS_REGN0:
+ 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;
+ nibl_count += 1;
+ break;
+ case CLASS_BIT_1OR2:
+ instr_data->immediate = ((instr_nibl >> 1) & 0x1) + 1;
+ nibl_count += 1;
+ break;
+ default:
+ abort ();
+ break;
+ }
loop += 1;
nibl_count += 1;
- }
+ }
+}
+
+static void
+print_intr(char *tmp_str, unsigned long interrupts)
+{
+ int comma = 0;
+
+ *tmp_str = 0;
+ if (! (interrupts & 2))
+ {
+ strcat (tmp_str, "vi");
+ comma = 1;
+ }
+ if (! (interrupts & 1))
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "nvi");
+ }
+}
+
+static void
+print_flags(char *tmp_str, unsigned long flags)
+{
+ int comma = 0;
+
+ *tmp_str = 0;
+ if (flags & 8)
+ {
+ strcat (tmp_str, "c");
+ comma = 1;
+ }
+ if (flags & 4)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "z");
+ comma = 1;
+ }
+ if (flags & 2)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "s");
+ comma = 1;
+ }
+ if (flags & 1)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "p");
+ }
}
-static void unparse_instr( instr_data )
-instr_data_s *instr_data;
+static void
+unparse_instr (instr_data_s *instr_data, int is_segmented)
{
- unsigned short tabl_datum, datum_class, datum_value;
- int loop, loop_limit;
- char out_str[80], tmp_str[25];
+ unsigned short datum_value;
+ unsigned int tabl_datum, datum_class;
+ int loop, loop_limit;
+ char out_str[80], tmp_str[25];
- sprintf( out_str, "\t%-10s", z8k_table[instr_data->tabl_index].name );
+ sprintf (out_str, "%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, "," );
+ 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->displacement);
- 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;
- }
- }
+ switch (datum_class)
+ {
+ case CLASS_X:
+ sprintf (tmp_str, "0x%0lx(r%ld)", instr_data->address,
+ instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_BA:
+ if (is_segmented)
+ sprintf (tmp_str, "rr%ld(#0x%lx)", instr_data->arg_reg[datum_value],
+ instr_data->immediate);
+ else
+ sprintf (tmp_str, "r%ld(#0x%lx)", instr_data->arg_reg[datum_value],
+ instr_data->immediate);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_BX:
+ if (is_segmented)
+ sprintf (tmp_str, "rr%ld(r%ld)", instr_data->arg_reg[datum_value],
+ instr_data->arg_reg[ARG_RX]);
+ else
+ sprintf (tmp_str, "r%ld(r%ld)", 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%0lx", instr_data->displacement);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_IMM:
+ if (datum_value == ARG_IMM2) /* True with EI/DI instructions only. */
+ {
+ print_intr (tmp_str, instr_data->interrupts);
+ strcat (out_str, tmp_str);
+ break;
+ }
+ sprintf (tmp_str, "#0x%0lx", 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, "%s", ctrl_names[instr_data->ctrl_code]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_DA:
+ case CLASS_ADDRESS:
+ sprintf (tmp_str, "0x%0lx", instr_data->address);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_IR:
+ 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_IRO:
+ sprintf (tmp_str, "@r%ld", instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_FLAGS:
+ print_flags(tmp_str, 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%ld",
+ instr_data->arg_reg[datum_value] - 0x8);
+ else
+ sprintf (tmp_str, "rh%ld", instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_REG_WORD:
+ sprintf (tmp_str, "r%ld", instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_REG_QUAD:
+ sprintf (tmp_str, "rq%ld", instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
+ case CLASS_REG_LONG:
+ sprintf (tmp_str, "rr%ld", instr_data->arg_reg[datum_value]);
+ 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]);
+ strcat (out_str, tmp_str);
+ break;
+ default:
+ abort ();
+ break;
+ }
+ }
- strcpy( instr_data->instr_asmsrc, out_str );
+ strcpy (instr_data->instr_asmsrc, out_str);
}
projects / deliverable / binutils-gdb.git / blobdiff