X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fv850-dis.c;h=cf0d3860d3688bc4ab6777501689bc0c5c078150;hb=bbc40cf228fff7b7e0c3d0856d8887949cdde54b;hp=413e5e9ac2f820008e842afba6ce1950c2d35784;hpb=502535cff728b070ac9d121cfb2394551b9cd73b;p=deliverable%2Fbinutils-gdb.git diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c index 413e5e9ac2..cf0d3860d3 100644 --- a/opcodes/v850-dis.c +++ b/opcodes/v850-dis.c @@ -1,130 +1,642 @@ /* Disassemble V850 instructions. - Copyright (C) 1996 Free Software Foundation, Inc. + Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2010 + 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 file is part of the GNU opcodes library. -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. + 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. -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. */ + 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 program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #include -#include "ansidecl.h" -#include "opcode/v850.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", "r31" }; +{ + "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", - "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23", - "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31" }; +{ + "eipc/vip/mpm", "eipsw/mpc", "fepc/tid", "fepsw/ppa", "ecr/vmecr", "psw/vmtid", + "sr6/fpsr/vmadr/dcc", "sr7/fpepc/dc0", + "sr8/fpst/vpecr/dcv1", "sr9/fpcc/vptid", "sr10/fpcfg/vpadr/spal", "sr11/spau", + "sr12/vdecr/ipa0l", "eiic/vdtid/ipa0u", "feic/ipa1l", "dbic/ipa1u", + "ctpc/ipa2l", "ctpsw/ipa2u", "dbpc/ipa3l", "dbpsw/ipa3u", "ctbp/dpa0l", + "dir/dpa0u", "bpc/dpa0u", "asid/dpa1l", + "bpav/dpa1u", "bpam/dpa2l", "bpdv/dpa2u", "bpdm/dpa3l", "eiwr/dpa3u", + "fewr", "dbwr", "bsel" +}; 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", "lt", "ge", - "le", "gt" }; - -int -print_insn_v850 (memaddr, info) - bfd_vma memaddr; - struct disassemble_info *info; { - int status; + "v", "c/l", "z", "nh", "s/n", "t", "lt", "le", + "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt" +}; + +static const char *const v850_float_cc_names[] = +{ + "f/t", "un/or", "eq/neq", "ueq/ogl", "olt/uge", "ult/oge", "ole/ugt", "ule/ogt", + "sf/st", "ngle/gle", "seq/sne", "ngl/gl", "lt/nlt", "nge/ge", "le/nle", "ngt/gt" +}; + + +static void +print_value (int flags, bfd_vma memaddr, struct disassemble_info *info, long value) +{ + if (flags & V850_PCREL) + { + bfd_vma addr = value + memaddr; + info->print_address_func (addr, info); + } + else if (flags & V850_OPERAND_DISP) + { + if (flags & V850_OPERAND_SIGNED) + { + info->fprintf_func (info->stream, "%ld", value); + } + else + { + info->fprintf_func (info->stream, "%lu", value); + } + } + else if (flags & V850E_IMMEDIATE32) + { + info->fprintf_func (info->stream, "0x%lx", value); + } + else + { + if (flags & V850_OPERAND_SIGNED) + { + info->fprintf_func (info->stream, "%ld", value); + } + else + { + info->fprintf_func (info->stream, "%lu", value); + } + } +} + +static long +get_operand_value (const struct v850_operand *operand, + unsigned long insn, + int bytes_read, + bfd_vma memaddr, + struct disassemble_info * info, + bfd_boolean noerror, + int *invalid) +{ + long value; bfd_byte buffer[4]; - unsigned long insn; - status = (*info->read_memory_func) (memaddr, buffer, 4, info); - if (status != 0) + if ((operand->flags & V850E_IMMEDIATE16) + || (operand->flags & V850E_IMMEDIATE16HI)) { - (*info->memory_error_func) (status, memaddr, info); - return -1; + int status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info); + + if (status == 0) + { + value = bfd_getl16 (buffer); + + if (operand->flags & V850E_IMMEDIATE16HI) + value <<= 16; + + return value; + } + + if (!noerror) + info->memory_error_func (status, memaddr + bytes_read, info); + + return 0; + } + + if (operand->flags & V850E_IMMEDIATE23) + { + int status = info->read_memory_func (memaddr + 2, buffer, 4, info); + + if (status == 0) + { + value = bfd_getl32 (buffer); + + value = (operand->extract) (value, invalid); + + return value; + } + + if (!noerror) + info->memory_error_func (status, memaddr + bytes_read, info); + + return 0; + } + + if (operand->flags & V850E_IMMEDIATE32) + { + int status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info); + + if (status == 0) + { + bytes_read += 4; + value = bfd_getl32 (buffer); + + return value; + } + + if (!noerror) + info->memory_error_func (status, memaddr + bytes_read, info); + + return 0; } - insn = bfd_getl32 (buffer); - disassemble (insn, info); - if ((insn & 0x0600) == 0x0600) - return 4; + if (operand->extract) + value = (operand->extract) (insn, invalid); else - return 2; + { + 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 << (sizeof (long)*8 - operand->bits)) + >> (sizeof (long)*8 - operand->bits)); + } + + return value; } -disassemble (insn, info) - unsigned long insn; - struct disassemble_info *info; + +static int +disassemble (bfd_vma memaddr, struct disassemble_info *info, int bytes_read, unsigned long insn) { struct v850_opcode *op = (struct v850_opcode *)v850_opcodes; const struct v850_operand *operand; int match = 0; - /* If this is a two byte insn, then mask off the high bits. */ - if ((insn & 0x0600) != 0x0600) + int target_processor; + + switch (info->mach) + { + case 0: + default: + target_processor = PROCESSOR_V850; + break; + + case bfd_mach_v850e: + target_processor = PROCESSOR_V850E; + break; + + case bfd_mach_v850e1: + target_processor = PROCESSOR_V850E; + break; + + case bfd_mach_v850e2: + target_processor = PROCESSOR_V850E2; + break; + + case bfd_mach_v850e2v3: + target_processor = PROCESSOR_V850E2V3; + break; + } + + /* If this is a two byte insn, then mask off the high bits. */ + if (bytes_read == 2) insn &= 0xffff; /* Find the opcode. */ while (op->name) { - if ((op->mask & insn) == op->opcode) + if ((op->mask & insn) == op->opcode + && (op->processors & target_processor) + && !(op->processors & PROCESSOR_OPTION_ALIAS)) { + /* Code check start. */ const unsigned char *opindex_ptr; + unsigned int opnum; + unsigned int memop; + + for (opindex_ptr = op->operands, opnum = 1; + *opindex_ptr != 0; + opindex_ptr++, opnum++) + { + int invalid = 0; + long value; + + operand = &v850_operands[*opindex_ptr]; + + value = get_operand_value (operand, insn, bytes_read, memaddr, info, 1, &invalid); + + if (invalid) + goto next_opcode; + + if ((operand->flags & V850_NOT_R0) && value == 0 && (op->memop) <=2) + goto next_opcode; + + if ((operand->flags & V850_NOT_SA) && value == 0xd) + goto next_opcode; + + if ((operand->flags & V850_NOT_IMM0) && value == 0) + goto next_opcode; + } + + /* Code check end. */ match = 1; (*info->fprintf_func) (info->stream, "%s\t", op->name); +#if 0 + fprintf (stderr, "match: insn: %lx, mask: %lx, opcode: %lx, name: %s\n", + insn, op->mask, op->opcode, op->name ); +#endif + + memop = op->memop; + /* Now print the operands. - /* Now print the operands. */ - for (opindex_ptr = op->operands; *opindex_ptr != 0; opindex_ptr++) + 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++) { - unsigned long value; + bfd_boolean square = FALSE; + long value; + int flag; + char *prefix; operand = &v850_operands[*opindex_ptr]; - if (operand->extract) - value = (operand->extract) (insn, 0); - else - value = (insn >> operand->shift) & ((1 << operand->bits) - 1); - - if ((operand->flags & V850_OPERAND_SIGNED) != 0) - value = ((signed long)(value << (32 - operand->bits)) - >> (32 - operand->bits)); - if ((operand->flags & V850_OPERAND_REG) != 0) - (*info->fprintf_func) (info->stream, "%s", - v850_reg_names[value]); - else if ((operand->flags & V850_OPERAND_SRG) != 0) - (*info->fprintf_func) (info->stream, "%s", - v850_sreg_names[value]); - else if ((operand->flags & V850_OPERAND_CC) != 0) - (*info->fprintf_func) (info->stream, "%s", - v850_cc_names[value]); - else if ((operand->flags & V850_OPERAND_EP) != 0) - (*info->fprintf_func) (info->stream, "ep"); - else - (*info->fprintf_func) (info->stream, "%d", value); + value = get_operand_value (operand, insn, bytes_read, memaddr, info, 0, 0); + + /* 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. */ + prefix = ""; + if (operand->flags & V850_OPERAND_BANG) + { + prefix = "!"; + } + else if (operand->flags & V850_OPERAND_PERCENT) + { + prefix = "%"; + } + + if (opnum == 1 && opnum == memop) + { + info->fprintf_func (info->stream, "%s[", prefix); + square = TRUE; + } + else if (opnum > 1 + && (v850_operands[*(opindex_ptr - 1)].flags & V850_OPERAND_DISP) != 0 + && opnum == memop) + { + info->fprintf_func (info->stream, "%s[", prefix); + square = TRUE; + } + else if (opnum > 1) + info->fprintf_func (info->stream, ", %s", prefix); + + /* Extract the flags, ignoring ones which do not effect disassembly output. */ + flag = operand->flags & (V850_OPERAND_REG + | V850_REG_EVEN + | V850_OPERAND_EP + | V850_OPERAND_SRG + | V850E_OPERAND_REG_LIST + | V850_OPERAND_CC + | V850_OPERAND_FLOAT_CC); + + switch (flag) + { + case V850_OPERAND_REG: info->fprintf_func (info->stream, "%s", v850_reg_names[value]); break; + case (V850_OPERAND_REG|V850_REG_EVEN): info->fprintf_func (info->stream, "%s", v850_reg_names[value*2]); break; + case V850_OPERAND_EP: info->fprintf_func (info->stream, "ep"); break; + case V850_OPERAND_SRG: info->fprintf_func (info->stream, "%s", v850_sreg_names[value]); break; + + case V850E_OPERAND_REG_LIST: + { + 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 }; + int *regs; + int i; + unsigned long int mask = 0; + int pc = 0; + + + switch (operand->shift) + { + case 0xffe00001: regs = list12_regs; break; + 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 reg: %d\n"), i ); abort (); + case -1: pc = 1; break; + } + } + } + + info->fprintf_func (info->stream, "{"); + + if (mask || pc) + { + if (mask) + { + unsigned int bit; + int shown_one = 0; + + 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 = 1; + + 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 ? ", " : ""); + } + + info->fprintf_func (info->stream, "}"); + } + break; + + case V850_OPERAND_CC: info->fprintf_func (info->stream, "%s", v850_cc_names[value]); break; + case V850_OPERAND_FLOAT_CC: info->fprintf_func (info->stream, "%s", v850_float_cc_names[value]); break; + + default: + print_value (operand->flags, memaddr, info, value); + break; + } + + if (square) + (*info->fprintf_func) (info->stream, "]"); } /* All done. */ break; } + next_opcode: op++; } + return match; +} + +int +print_insn_v850 (bfd_vma memaddr, struct disassemble_info * info) +{ + int status, status2, match; + bfd_byte buffer[8]; + int length = 0, code_length = 0; + unsigned long insn = 0, insn2 = 0; + int target_processor; + + switch (info->mach) + { + case 0: + default: + target_processor = PROCESSOR_V850; + break; + + case bfd_mach_v850e: + target_processor = PROCESSOR_V850E; + break; + + case bfd_mach_v850e1: + target_processor = PROCESSOR_V850E; + break; + + case bfd_mach_v850e2: + target_processor = PROCESSOR_V850E2; + break; + + case bfd_mach_v850e2v3: + target_processor = PROCESSOR_V850E2V3; + break; + } + + status = info->read_memory_func (memaddr, buffer, 2, info); + + if (status) + { + info->memory_error_func (status, memaddr, info); + return -1; + } + + insn = bfd_getl16 (buffer); + + status2 = info->read_memory_func (memaddr+2, buffer, 2 , info); + + if (!status2) + { + insn2 = bfd_getl16 (buffer); + /* fprintf (stderr, "insn2 0x%08lx\n", insn2); */ + } + + /* Special case. */ + if (length == 0 + && (target_processor == PROCESSOR_V850E2 + || target_processor == PROCESSOR_V850E2V3)) + { + if ((insn & 0xffff) == 0x02e0 /* jr 32bit */ + && !status2 && (insn2 & 0x1) == 0) + { + length = 2; + code_length = 6; + } + else if ((insn & 0xffe0) == 0x02e0 /* jarl 32bit */ + && !status2 && (insn2 & 0x1) == 0) + { + length = 2; + code_length = 6; + } + else if ((insn & 0xffe0) == 0x06e0 /* jmp 32bit */ + && !status2 && (insn2 & 0x1) == 0) + { + length = 2; + code_length = 6; + } + } + + if (length == 0 + && target_processor == PROCESSOR_V850E2V3) + { + if (((insn & 0xffe0) == 0x0780 /* ld.b 23bit */ + && !status2 && (insn2 & 0x000f) == 0x0005) + || ((insn & 0xffe0) == 0x07a0 /* ld.bu 23bit */ + && !status2 && (insn2 & 0x000f) == 0x0005) + || ((insn & 0xffe0) == 0x0780 /* ld.h 23bit */ + && !status2 && (insn2 & 0x000f) == 0x0007) + || ((insn & 0xffe0) == 0x07a0 /* ld.hu 23bit */ + && !status2 && (insn2 & 0x000f) == 0x0007) + || ((insn & 0xffe0) == 0x0780 /* ld.w 23bit */ + && !status2 && (insn2 & 0x000f) == 0x0009)) + { + length = 4; + code_length = 6; + } + else if (((insn & 0xffe0) == 0x0780 /* st.b 23bit */ + && !status2 && (insn2 & 0x000f) == 0x000d) + || ((insn & 0xffe0) == 0x07a0 /* st.h 23bit */ + && !status2 && (insn2 & 0x000f) == 0x000d) + || ((insn & 0xffe0) == 0x0780 /* st.w 23bit */ + && !status2 && (insn2 & 0x000f) == 0x000f)) + { + length = 4; + code_length = 6; + } + } + + if (length == 0 + && target_processor != PROCESSOR_V850) + { + if ((insn & 0xffe0) == 0x0620) /* 32 bit MOV */ + { + length = 2; + code_length = 6; + } + else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16<<16 */ + && !status2 && (insn2 & 0x001f) == 0x0013) + { + length = 4; + code_length = 6; + } + else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16 */ + && !status2 && (insn2 & 0x001f) == 0x000b) + { + length = 4; + code_length = 6; + } + else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm32 */ + && !status2 && (insn2 & 0x001f) == 0x001b) + { + length = 4; + code_length = 8; + } + } + + if (length == 4 + || (length == 0 + && (insn & 0x0600) == 0x0600)) + { + /* This is a 4 byte insn. */ + status = info->read_memory_func (memaddr, buffer, 4, info); + if (!status) + { + insn = bfd_getl32 (buffer); + + if (!length) + length = code_length = 4; + } + } + + if (code_length > length) + { + status = info->read_memory_func (memaddr + length, buffer, code_length - length, info); + if (status) + length = 0; + } + + if (length == 0 && !status) + length = code_length = 2; + + if (length == 2) + insn &= 0xffff; + + match = disassemble (memaddr, info, length, insn); + if (!match) { - if ((insn & 0x0600) != 0x0600) - (*info->fprintf_func) (info->stream, ".short\t0x%04x", insn); - else - (*info->fprintf_func) (info->stream, ".long\t0x%08x", insn); + int l = 0; + + status = info->read_memory_func (memaddr, buffer, code_length, info); + + while (l < code_length) + { + if (code_length - l == 2) + { + insn = bfd_getl16 (buffer + l) & 0xffff; + info->fprintf_func (info->stream, ".short\t0x%04lx", insn); + l += 2; + } + else + { + insn = bfd_getl32 (buffer + l); + info->fprintf_func (info->stream, ".long\t0x%08lx", insn); + l += 4; + } + } } + + return code_length; }