From 7b61b0945fdd8320955a04e1f53b9d4d637d25bf Mon Sep 17 00:00:00 2001
From: Mark Alexander <marka@cygnus>
Date: Fri, 19 Jun 1998 16:19:12 +0000
Subject: [PATCH] * m10200-dis.c (print_insn_mn10200): Recognize 'break'
pseudo-op.
---
opcodes/ChangeLog | 4 +
opcodes/m10200-dis.c | 340 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 344 insertions(+)
create mode 100644 opcodes/m10200-dis.c
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index a3b76d153a4..debf81e0e37 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jun 19 09:16:42 1998 Mark Alexander <marka@cygnus.com>
+
+ * m10200-dis.c (print_insn_mn10200): Recognize 'break' pseudo-op.
+
start-sanitize-am33
Fri Jun 19 09:42:51 1998 Jeffrey A Law (law@cygnus.com)
diff --git a/opcodes/m10200-dis.c b/opcodes/m10200-dis.c
new file mode 100644
index 00000000000..9572f9ea85e
--- /dev/null
+++ b/opcodes/m10200-dis.c
@@ -0,0 +1,340 @@
+/* Disassemble MN10200 instructions.
+ Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+
+#include <stdio.h>
+
+#include "ansidecl.h"
+#include "opcode/mn10200.h"
+#include "dis-asm.h"
+#include "opintl.h"
+
+static void disassemble PARAMS ((bfd_vma, struct disassemble_info *,
+ unsigned long insn, unsigned long,
+ unsigned int));
+
+int
+print_insn_mn10200 (memaddr, info)
+ bfd_vma memaddr;
+ struct disassemble_info *info;
+{
+ int status;
+ bfd_byte buffer[4];
+ unsigned long insn;
+ unsigned long extension = 0;
+ unsigned int consume;
+
+ /* First figure out how big the opcode is. */
+ status = (*info->read_memory_func) (memaddr, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = *(unsigned char *) buffer;
+
+ /* These are one byte insns. */
+ if ((insn & 0xf0) == 0x00
+ || (insn & 0xf0) == 0x10
+ || (insn & 0xf0) == 0x20
+ || (insn & 0xf0) == 0x30
+ || ((insn & 0xf0) == 0x80
+ && (insn & 0x0c) >> 2 != (insn & 0x03))
+ || (insn & 0xf0) == 0x90
+ || (insn & 0xf0) == 0xa0
+ || (insn & 0xf0) == 0xb0
+ || (insn & 0xff) == 0xeb
+ || (insn & 0xff) == 0xf6
+ || (insn & 0xff) == 0xfe
+ || (insn & 0xff) == 0xff)
+ {
+ extension = 0;
+ consume = 1;
+ }
+
+ /* These are two byte insns. */
+ else if ((insn & 0xf0) == 0x40
+ || (insn & 0xf0) == 0x50
+ || (insn & 0xf0) == 0x60
+ || (insn & 0xf0) == 0x70
+ || (insn & 0xf0) == 0x80
+ || (insn & 0xfc) == 0xd0
+ || (insn & 0xfc) == 0xd4
+ || (insn & 0xfc) == 0xd8
+ || (insn & 0xfc) == 0xe0
+ || (insn & 0xfc) == 0xe4
+ || (insn & 0xff) == 0xe8
+ || (insn & 0xff) == 0xe9
+ || (insn & 0xff) == 0xea
+ || (insn & 0xff) == 0xf0
+ || (insn & 0xff) == 0xf1
+ || (insn & 0xff) == 0xf2
+ || (insn & 0xff) == 0xf3)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb16 (buffer);
+ consume = 2;
+ }
+
+ /* These are three byte insns with a 16bit operand in little
+ endian form. */
+ else if ((insn & 0xf0) == 0xc0
+ || (insn & 0xfc) == 0xdc
+ || (insn & 0xfc) == 0xec
+ || (insn & 0xff) == 0xf8
+ || (insn & 0xff) == 0xf9
+ || (insn & 0xff) == 0xfa
+ || (insn & 0xff) == 0xfb
+ || (insn & 0xff) == 0xfc
+ || (insn & 0xff) == 0xfd)
+ {
+ status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn <<= 16;
+ insn |= bfd_getl16 (buffer);
+ extension = 0;
+ consume = 3;
+ }
+ /* These are three byte insns too, but we don't have to mess with
+ endianness stuff. */
+ else if ((insn & 0xff) == 0xf5)
+ {
+ status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn <<= 16;
+ insn |= bfd_getb16 (buffer);
+ extension = 0;
+ consume = 3;
+ }
+
+ /* These are four byte insns. */
+ else if ((insn & 0xff) == 0xf7)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb16 (buffer);
+ insn <<= 16;
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn |= bfd_getl16 (buffer);
+ extension = 0;
+ consume = 4;
+ }
+
+ /* These are five byte insns. */
+ else if ((insn & 0xff) == 0xf4)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb16 (buffer);
+ insn <<= 16;
+
+ status = (*info->read_memory_func) (memaddr + 4, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn |= *(unsigned char *)buffer << 8;
+
+ status = (*info->read_memory_func) (memaddr + 3, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn |= *(unsigned char *)buffer;
+
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ extension = *(unsigned char *)buffer;
+ consume = 5;
+ }
+ else
+ {
+ (*info->fprintf_func) (info->stream, _("unknown\t0x%02x"), insn);
+ return 1;
+ }
+
+ disassemble (memaddr, info, insn, extension, consume);
+
+ return consume;
+}
+
+static void
+disassemble (memaddr, info, insn, extension, size)
+ bfd_vma memaddr;
+ struct disassemble_info *info;
+ unsigned long insn;
+ unsigned long extension;
+ unsigned int size;
+{
+ struct mn10200_opcode *op = (struct mn10200_opcode *)mn10200_opcodes;
+ const struct mn10200_operand *operand;
+ int match = 0;
+
+ /* Find the opcode. */
+ while (op->name)
+ {
+ int mysize, extra_shift;
+
+ if (op->format == FMT_1)
+ mysize = 1;
+ else if (op->format == FMT_2
+ || op->format == FMT_4)
+ mysize = 2;
+ else if (op->format == FMT_3
+ || op->format == FMT_5)
+ mysize = 3;
+ else if (op->format == FMT_6)
+ mysize = 4;
+ else if (op->format == FMT_7)
+ mysize = 5;
+ else
+ abort ();
+
+ if (op->format == FMT_2 || op->format == FMT_5)
+ extra_shift = 8;
+ else if (op->format == FMT_3
+ || op->format == FMT_6
+ || op->format == FMT_7)
+ extra_shift = 16;
+ else
+ extra_shift = 0;
+
+ if ((op->mask & insn) == op->opcode
+ && size == (unsigned int) mysize)
+ {
+ const unsigned char *opindex_ptr;
+ unsigned int nocomma;
+ int paren = 0;
+
+ match = 1;
+ (*info->fprintf_func) (info->stream, "%s\t", op->name);
+
+ /* Now print the operands. */
+ for (opindex_ptr = op->operands, nocomma = 1;
+ *opindex_ptr != 0;
+ opindex_ptr++)
+ {
+ unsigned long value;
+
+ operand = &mn10200_operands[*opindex_ptr];
+
+ if ((operand->flags & MN10200_OPERAND_EXTENDED) != 0)
+ {
+ value = (insn & 0xffff) << 8;
+ value |= extension;
+ }
+ else
+ {
+ value = ((insn >> (operand->shift))
+ & ((1 << operand->bits) - 1));
+ }
+
+ if ((operand->flags & MN10200_OPERAND_SIGNED) != 0)
+ value = ((long)(value << (32 - operand->bits))
+ >> (32 - operand->bits));
+
+ if (!nocomma
+ && (!paren
+ || ((operand->flags & MN10200_OPERAND_PAREN) == 0)))
+ (*info->fprintf_func) (info->stream, ",");
+
+ nocomma = 0;
+
+ if ((operand->flags & MN10200_OPERAND_DREG) != 0)
+ {
+ value = ((insn >> (operand->shift + extra_shift))
+ & ((1 << operand->bits) - 1));
+ (*info->fprintf_func) (info->stream, "d%d", value);
+ }
+
+ else if ((operand->flags & MN10200_OPERAND_AREG) != 0)
+ {
+ value = ((insn >> (operand->shift + extra_shift))
+ & ((1 << operand->bits) - 1));
+ (*info->fprintf_func) (info->stream, "a%d", value);
+ }
+
+ else if ((operand->flags & MN10200_OPERAND_PSW) != 0)
+ (*info->fprintf_func) (info->stream, "psw");
+
+ else if ((operand->flags & MN10200_OPERAND_MDR) != 0)
+ (*info->fprintf_func) (info->stream, "mdr");
+
+ else if ((operand->flags & MN10200_OPERAND_PAREN) != 0)
+ {
+ if (paren)
+ (*info->fprintf_func) (info->stream, ")");
+ else
+ {
+ (*info->fprintf_func) (info->stream, "(");
+ nocomma = 1;
+ }
+ paren = !paren;
+ }
+
+ else if ((operand->flags & MN10200_OPERAND_PCREL) != 0)
+ (*info->print_address_func) ((value + memaddr + mysize) & 0xffffff, info);
+
+ else if ((operand->flags & MN10200_OPERAND_MEMADDR) != 0)
+ (*info->print_address_func) (value, info);
+
+ else
+ (*info->fprintf_func) (info->stream, "%d", value);
+ }
+ /* All done. */
+ break;
+ }
+ op++;
+ }
+
+ if (!match)
+ {
+ (*info->fprintf_func) (info->stream, _("unknown\t0x%04x"), insn);
+ }
+}