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Diffstat (limited to 'opcodes/v850-dis.c')
| -rw-r--r-- | opcodes/v850-dis.c | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c deleted file mode 100644 index 0f688678a8a..00000000000 --- a/opcodes/v850-dis.c +++ /dev/null @@ -1,381 +0,0 @@ -/* Disassemble V850 instructions. - Copyright 1996, 1997, 1998, 2000 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 "sysdep.h" -#include "opcode/v850.h" -#include "dis-asm.h" -#include "opintl.h" - -static const char *const v850_reg_names[] = -{ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7", - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", - "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", - "r24", "r25", "r26", "r27", "r28", "r29", "ep", "lp" }; - -static const char *const v850_sreg_names[] = -{ "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7", - "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15", - "ctpc", "ctpsw", "dbpc", "dbpsw", "ctbp", "sr21", "sr22", "sr23", - "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31", - "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", - "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31" }; - -static const char *const v850_cc_names[] = -{ "v", "c/l", "z", "nh", "s/n", "t", "lt", "le", - "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt" }; - -static int -disassemble (memaddr, info, insn) - bfd_vma memaddr; - struct disassemble_info *info; - unsigned long insn; -{ - struct v850_opcode * op = (struct v850_opcode *)v850_opcodes; - const struct v850_operand * operand; - int match = 0; - int short_op = ((insn & 0x0600) != 0x0600); - int bytes_read; - int target_processor; - - /* Special case: 32 bit MOV */ - if ((insn & 0xffe0) == 0x0620) - short_op = true; - - bytes_read = short_op ? 2 : 4; - - /* If this is a two byte insn, then mask off the high bits. */ - if (short_op) - insn &= 0xffff; - - switch (info->mach) - { - case 0: - default: - target_processor = PROCESSOR_V850; - break; - - case bfd_mach_v850e: - target_processor = PROCESSOR_V850E; - break; - - case bfd_mach_v850ea: - target_processor = PROCESSOR_V850EA; - break; - } - - /* Find the opcode. */ - while (op->name) - { - if ((op->mask & insn) == op->opcode - && (op->processors & target_processor)) - { - const unsigned char * opindex_ptr; - unsigned int opnum; - unsigned int memop; - - match = 1; - (*info->fprintf_func) (info->stream, "%s\t", op->name); -/*fprintf (stderr, "match: mask: %x insn: %x, opcode: %x, name: %s\n", op->mask, insn, op->opcode, op->name );*/ - - memop = op->memop; - /* Now print the operands. - - MEMOP is the operand number at which a memory - address specification starts, or zero if this - instruction has no memory addresses. - - A memory address is always two arguments. - - This information allows us to determine when to - insert commas into the output stream as well as - when to insert disp[reg] expressions onto the - output stream. */ - - for (opindex_ptr = op->operands, opnum = 1; - *opindex_ptr != 0; - opindex_ptr++, opnum++) - { - long value; - int flag; - int status; - bfd_byte buffer[ 4 ]; - - operand = &v850_operands[*opindex_ptr]; - - if (operand->extract) - value = (operand->extract) (insn, 0); - else - { - if (operand->bits == -1) - value = (insn & operand->shift); - else - value = (insn >> operand->shift) & ((1 << operand->bits) - 1); - - if (operand->flags & V850_OPERAND_SIGNED) - value = ((long)(value << (32 - operand->bits)) - >> (32 - operand->bits)); - } - - /* The first operand is always output without any - special handling. - - For the following arguments: - - If memop && opnum == memop + 1, then we need '[' since - we're about to output the register used in a memory - reference. - - If memop && opnum == memop + 2, then we need ']' since - we just finished the register in a memory reference. We - also need a ',' before this operand. - - Else we just need a comma. - - We may need to output a trailing ']' if the last operand - in an instruction is the register for a memory address. - - The exception (and there's always an exception) is the - "jmp" insn which needs square brackets around it's only - register argument. */ - - if (memop && opnum == memop + 1) info->fprintf_func (info->stream, "["); - else if (memop && opnum == memop + 2) info->fprintf_func (info->stream, "],"); - else if (memop == 1 && opnum == 1 - && (operand->flags & V850_OPERAND_REG)) - info->fprintf_func (info->stream, "["); - else if (opnum > 1) info->fprintf_func (info->stream, ", "); - - /* extract the flags, ignorng ones which do not effect disassembly output. */ - flag = operand->flags; - flag &= ~ V850_OPERAND_SIGNED; - flag &= ~ V850_OPERAND_RELAX; - flag &= - flag; - - switch (flag) - { - case V850_OPERAND_REG: info->fprintf_func (info->stream, "%s", v850_reg_names[value]); break; - case V850_OPERAND_SRG: info->fprintf_func (info->stream, "%s", v850_sreg_names[value]); break; - case V850_OPERAND_CC: info->fprintf_func (info->stream, "%s", v850_cc_names[value]); break; - case V850_OPERAND_EP: info->fprintf_func (info->stream, "ep"); break; - default: info->fprintf_func (info->stream, "%d", value); break; - case V850_OPERAND_DISP: - { - bfd_vma addr = value + memaddr; - - /* On the v850 the top 8 bits of an address are used by an overlay manager. - Thus it may happen that when we are looking for a symbol to match - against an address with some of its top bits set, the search fails to - turn up an exact match. In this case we try to find an exact match - against a symbol in the lower address space, and if we find one, we - use that address. We only do this for JARL instructions however, as - we do not want to misinterpret branch instructions. */ - if (operand->bits == 22) - { - if ( ! info->symbol_at_address_func (addr, info) - && ((addr & 0xFF000000) != 0) - && info->symbol_at_address_func (addr & 0x00FFFFFF, info)) - { - addr &= 0x00FFFFFF; - } - } - info->print_address_func (addr, info); - break; - } - - case V850E_PUSH_POP: - { - static int list12_regs[32] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 }; - static int list18_h_regs[32] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 }; - static int list18_l_regs[32] = { 3, 2, 1, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 }; - int * regs; - int i; - unsigned long int mask = 0; - int pc = false; - int sr = false; - - - switch (operand->shift) - { - case 0xffe00001: regs = list12_regs; break; - case 0xfff8000f: regs = list18_h_regs; break; - case 0xfff8001f: regs = list18_l_regs; value &= ~0x10; break; /* Do not include magic bit */ - default: - /* xgettext:c-format */ - fprintf (stderr, _("unknown operand shift: %x\n"), operand->shift ); - abort(); - } - - for (i = 0; i < 32; i++) - { - if (value & (1 << i)) - { - switch (regs[ i ]) - { - default: mask |= (1 << regs[ i ]); break; - /* xgettext:c-format */ - case 0: fprintf (stderr, _("unknown pop reg: %d\n"), i ); abort(); - case -1: pc = true; break; - case -2: sr = true; break; - } - } - } - - info->fprintf_func (info->stream, "{"); - - if (mask || pc || sr) - { - if (mask) - { - unsigned int bit; - int shown_one = false; - - for (bit = 0; bit < 32; bit++) - if (mask & (1 << bit)) - { - unsigned long int first = bit; - unsigned long int last; - - if (shown_one) - info->fprintf_func (info->stream, ", "); - else - shown_one = true; - - info->fprintf_func (info->stream, v850_reg_names[first]); - - for (bit++; bit < 32; bit++) - if ((mask & (1 << bit)) == 0) - break; - - last = bit; - - if (last > first + 1) - { - info->fprintf_func (info->stream, " - %s", v850_reg_names[ last - 1 ]); - } - } - } - - if (pc) - info->fprintf_func (info->stream, "%sPC", mask ? ", " : ""); - if (sr) - info->fprintf_func (info->stream, "%sSR", (mask || pc) ? ", " : ""); - } - - info->fprintf_func (info->stream, "}"); - } - break; - - case V850E_IMMEDIATE16: - status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info); - if (status == 0) - { - bytes_read += 2; - value = bfd_getl16 (buffer); - - /* If this is a DISPOSE instruction with ff set to 0x10, then shift value up by 16. */ - if ((insn & 0x001fffc0) == 0x00130780) - value <<= 16; - - info->fprintf_func (info->stream, "0x%x", value); - } - else - { - info->memory_error_func (status, memaddr + bytes_read, info); - } - break; - - case V850E_IMMEDIATE32: - status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info); - if (status == 0) - { - bytes_read += 4; - value = bfd_getl32 (buffer); - info->fprintf_func (info->stream, "0x%lx", value); - } - else - { - info->memory_error_func (status, memaddr + bytes_read, info); - } - break; - } - - /* Handle jmp correctly. */ - if (memop == 1 && opnum == 1 - && ((operand->flags & V850_OPERAND_REG) != 0)) - (*info->fprintf_func) (info->stream, "]"); - } - - /* Close any square bracket we left open. */ - if (memop && opnum == memop + 2) - (*info->fprintf_func) (info->stream, "]"); - - /* All done. */ - break; - } - op++; - } - - if (!match) - { - if (short_op) - info->fprintf_func (info->stream, ".short\t0x%04x", insn); - else - info->fprintf_func (info->stream, ".long\t0x%08x", insn); - } - - return bytes_read; -} - -int -print_insn_v850 (memaddr, info) - bfd_vma memaddr; - struct disassemble_info * info; -{ - int status; - bfd_byte buffer[ 4 ]; - unsigned long insn = 0; - - /* First figure out how big the opcode is. */ - - status = info->read_memory_func (memaddr, buffer, 2, info); - if (status == 0) - { - insn = bfd_getl16 (buffer); - - if ( (insn & 0x0600) == 0x0600 - && (insn & 0xffe0) != 0x0620) - { - /* If this is a 4 byte insn, read 4 bytes of stuff. */ - status = info->read_memory_func (memaddr, buffer, 4, info); - - if (status == 0) - insn = bfd_getl32 (buffer); - } - } - - if (status != 0) - { - info->memory_error_func (status, memaddr, info); - return -1; - } - - /* Make sure we tell our caller how many bytes we consumed. */ - return disassemble (memaddr, info, insn); -} |