diff options
Diffstat (limited to 'opcodes/v850-dis.c')
-rw-r--r-- | opcodes/v850-dis.c | 609 |
1 files changed, 422 insertions, 187 deletions
diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c index 6cf9029..c3624b2 100644 --- a/opcodes/v850-dis.c +++ b/opcodes/v850-dis.c @@ -1,5 +1,5 @@ /* Disassemble V850 instructions. - Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2007 + Copyright 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2007, 2010 Free Software Foundation, Inc. This file is part of the GNU opcodes library. @@ -28,44 +28,169 @@ #include "opintl.h" static const char *const v850_reg_names[] = -{ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7", +{ + "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" }; + "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" }; +{ + "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", "ge", "gt" }; +{ + "v", "c/l", "z", "nh", "s/n", "t", "lt", "le", + "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt" +}; -static int -disassemble (bfd_vma memaddr, - struct disassemble_info * info, - unsigned long insn) +static const char *const v850_float_cc_names[] = { - 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; + "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" +}; - /* Special case: 32 bit MOV. */ - if ((insn & 0xffe0) == 0x0620) - short_op = 1; - bytes_read = short_op ? 2 : 4; +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); + } + } +} - /* If this is a two byte insn, then mask off the high bits. */ - if (short_op) - insn &= 0xffff; +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]; + + if ((operand->flags & V850E_IMMEDIATE16) + || (operand->flags & V850E_IMMEDIATE16HI)) + { + 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; + } + + if (operand->extract) + value = (operand->extract) (insn, invalid); + 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 << (sizeof (long)*8 - operand->bits)) + >> (sizeof (long)*8 - operand->bits)); + } + + return value; +} + + +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; + int target_processor; switch (info->mach) { @@ -79,22 +204,66 @@ disassemble (bfd_vma memaddr, break; case bfd_mach_v850e1: - target_processor = PROCESSOR_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 - && (op->processors & target_processor)) + && (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. @@ -116,24 +285,11 @@ disassemble (bfd_vma memaddr, { long value; int flag; - int status; - bfd_byte buffer[4]; + char *prefix; 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)); - } + value = get_operand_value (operand, insn, bytes_read, memaddr, info, 0, 0); /* The first operand is always output without any special handling. @@ -156,88 +312,57 @@ disassemble (bfd_vma memaddr, 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 (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; + if (opnum == 1 && opnum == memop) + info->fprintf_func (info->stream, "%s[", prefix); + else if (opnum > 1 + && (v850_operands[*(opindex_ptr - 1)].flags & V850_OPERAND_DISP) != 0 + && opnum == memop) + info->fprintf_func (info->stream, "%s[", prefix); + 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_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, "%ld", 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 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_PUSH_POP: + 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 }; - 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 }; + 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; - int sr = 0; + switch (operand->shift) { case 0xffe00001: regs = list12_regs; break; - case 0xfff8000f: regs = list18_h_regs; break; - case 0xfff8001f: - regs = list18_l_regs; - value &= ~0x10; /* Do not include magic bit. */ - break; default: /* xgettext:c-format */ - fprintf (stderr, _("unknown operand shift: %x\n"), - operand->shift); + fprintf (stderr, _("unknown operand shift: %x\n"), operand->shift ); abort (); } @@ -249,18 +374,15 @@ disassemble (bfd_vma memaddr, { default: mask |= (1 << regs[ i ]); break; /* xgettext:c-format */ - case 0: - fprintf (stderr, _("unknown pop reg: %d\n"), i ); - abort (); + case 0: fprintf (stderr, _("unknown reg: %d\n"), i ); abort (); case -1: pc = 1; break; - case -2: sr = 1; break; } } } info->fprintf_func (info->stream, "{"); - if (mask || pc || sr) + if (mask || pc) { if (mask) { @@ -278,8 +400,7 @@ disassemble (bfd_vma memaddr, else shown_one = 1; - info->fprintf_func (info->stream, - v850_reg_names[first]); + info->fprintf_func (info->stream, v850_reg_names[first]); for (bit++; bit < 32; bit++) if ((mask & (1 << bit)) == 0) @@ -288,113 +409,227 @@ disassemble (bfd_vma memaddr, last = bit; if (last > first + 1) - info->fprintf_func (info->stream, " - %s", - v850_reg_names[last - 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%lx", 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); + 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; } - /* Handle jmp correctly. */ - if (memop == 1 && opnum == 1 - && ((operand->flags & V850_OPERAND_REG) != 0)) + if (opnum == 2 && opnum == memop) (*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; } + next_opcode: op++; } - if (!match) - { - if (short_op) - info->fprintf_func (info->stream, ".short\t0x%04lx", insn); - else - info->fprintf_func (info->stream, ".long\t0x%08lx", insn); - } - - return bytes_read; + return match; } int print_insn_v850 (bfd_vma memaddr, struct disassemble_info * info) { - int status; - bfd_byte buffer[4]; - unsigned long insn = 0; + 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; + } - /* First figure out how big the opcode is. */ status = info->read_memory_func (memaddr, buffer, 2, info); - if (status == 0) + + 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) { - insn = bfd_getl16 (buffer); + insn2 = bfd_getl16 (buffer); + /* fprintf (stderr, "insn2 0x%08lx\n", insn2); */ + } - if ( (insn & 0x0600) == 0x0600 - && (insn & 0xffe0) != 0x0620) + /* 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) { - /* If this is a 4 byte insn, read 4 bytes of stuff. */ - status = info->read_memory_func (memaddr, buffer, 4, info); + length = 2; + code_length = 6; + } + } - if (status == 0) - insn = bfd_getl32 (buffer); + 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 (status != 0) + if (length == 0 + && target_processor != PROCESSOR_V850) { - info->memory_error_func (status, memaddr, info); - return -1; + 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) + { + 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; + } + } } - /* Make sure we tell our caller how many bytes we consumed. */ - return disassemble (memaddr, info, insn); + return code_length; } |