#include <stdio.h>
#include "sysdep.h"
#include "dis-asm.h"
#include "opcode/ppc.h"
static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int, int);
struct dis_private {
int dialect;
};
static int
powerpc_dialect (struct disassemble_info *info)
{
int dialect = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC | PPC_OPCODE_GPUL;
if (BFD_DEFAULT_TARGET_SIZE == 64)
dialect |= PPC_OPCODE_64;
if (info->disassembler_options
&& strstr (info->disassembler_options, "booke") != NULL)
dialect |= PPC_OPCODE_BOOKE | PPC_OPCODE_BOOKE64;
else if ((info->mach == bfd_mach_ppc_e500)
|| (info->disassembler_options
&& strstr (info->disassembler_options, "e500") != NULL))
dialect |= (PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
| PPC_OPCODE_RFMCI);
else if (info->disassembler_options
&& strstr (info->disassembler_options, "efs") != NULL)
dialect |= PPC_OPCODE_EFS;
else
dialect |= (PPC_OPCODE_403 | PPC_OPCODE_601 | PPC_OPCODE_CLASSIC
| PPC_OPCODE_COMMON | PPC_OPCODE_ALTIVEC);
if (info->disassembler_options
&& strstr (info->disassembler_options, "power4") != NULL)
dialect |= PPC_OPCODE_POWER4;
if ((info->mach == bfd_mach_ppc_970)
|| (info->disassembler_options
&& strcmp (info->disassembler_options, "gpul") == 0))
dialect |= PPC_OPCODE_GPUL;
if (info->disassembler_options
&& strstr (info->disassembler_options, "power5") != NULL)
dialect |= PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5;
if (info->disassembler_options
&& strstr (info->disassembler_options, "any") != NULL)
dialect |= PPC_OPCODE_ANY;
if (info->disassembler_options)
{
if (strstr (info->disassembler_options, "32") != NULL)
dialect &= ~PPC_OPCODE_64;
else if (strstr (info->disassembler_options, "64") != NULL)
dialect |= PPC_OPCODE_64;
}
((struct dis_private *) &info->private_data)->dialect = dialect;
return dialect;
}
int
print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
int dialect = ((struct dis_private *) &info->private_data)->dialect;
return print_insn_powerpc (memaddr, info, 1, dialect);
}
int
print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
int dialect = ((struct dis_private *) &info->private_data)->dialect;
return print_insn_powerpc (memaddr, info, 0, dialect);
}
int
print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
{
return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
}
static int
print_insn_powerpc (bfd_vma memaddr,
struct disassemble_info *info,
int bigendian,
int dialect)
{
bfd_byte buffer[4];
int status;
unsigned long insn;
const struct powerpc_opcode *opcode;
const struct powerpc_opcode *opcode_end;
unsigned long op;
if (dialect == 0)
dialect = powerpc_dialect (info);
status = (*info->read_memory_func) (memaddr, buffer, 4, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr, info);
return -1;
}
if (bigendian)
insn = bfd_getb32 (buffer);
else
insn = bfd_getl32 (buffer);
op = PPC_OP (insn);
opcode_end = powerpc_opcodes + powerpc_num_opcodes;
again:
for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++)
{
unsigned long table_op;
const unsigned char *opindex;
const struct powerpc_operand *operand;
int invalid;
int need_comma;
int need_paren;
table_op = PPC_OP (opcode->opcode);
if (op < table_op)
break;
if (op > table_op)
continue;
if ((insn & opcode->mask) != opcode->opcode
|| (opcode->flags & dialect) == 0)
continue;
invalid = 0;
for (opindex = opcode->operands; *opindex != 0; opindex++)
{
operand = powerpc_operands + *opindex;
if (operand->extract)
(*operand->extract) (insn, dialect, &invalid);
}
if (invalid)
continue;
if (opcode->operands[0] != 0)
(*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
else
(*info->fprintf_func) (info->stream, "%s", opcode->name);
need_comma = 0;
need_paren = 0;
for (opindex = opcode->operands; *opindex != 0; opindex++)
{
long value;
operand = powerpc_operands + *opindex;
if ((operand->flags & PPC_OPERAND_FAKE) != 0)
continue;
if (operand->extract)
value = (*operand->extract) (insn, dialect, &invalid);
else
{
value = (insn >> operand->shift) & ((1 << operand->bits) - 1);
if ((operand->flags & PPC_OPERAND_SIGNED) != 0
&& (value & (1 << (operand->bits - 1))) != 0)
value -= 1 << operand->bits;
}
if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
&& (operand->flags & PPC_OPERAND_NEXT) == 0
&& value == 0)
continue;
if (need_comma)
{
(*info->fprintf_func) (info->stream, ",");
need_comma = 0;
}
if ((operand->flags & PPC_OPERAND_GPR) != 0
|| ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
(*info->fprintf_func) (info->stream, "r%ld", value);
else if ((operand->flags & PPC_OPERAND_FPR) != 0)
(*info->fprintf_func) (info->stream, "f%ld", value);
else if ((operand->flags & PPC_OPERAND_VR) != 0)
(*info->fprintf_func) (info->stream, "v%ld", value);
else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
(*info->print_address_func) (memaddr + value, info);
else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
(*info->print_address_func) ((bfd_vma) value & 0xffffffff, info);
else if ((operand->flags & PPC_OPERAND_CR) == 0
|| (dialect & PPC_OPCODE_PPC) == 0)
(*info->fprintf_func) (info->stream, "%ld", value);
else
{
if (operand->bits == 3)
(*info->fprintf_func) (info->stream, "cr%ld", value);
else
{
static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
int cr;
int cc;
cr = value >> 2;
if (cr != 0)
(*info->fprintf_func) (info->stream, "4*cr%d+", cr);
cc = value & 3;
(*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
}
}
if (need_paren)
{
(*info->fprintf_func) (info->stream, ")");
need_paren = 0;
}
if ((operand->flags & PPC_OPERAND_PARENS) == 0)
need_comma = 1;
else
{
(*info->fprintf_func) (info->stream, "(");
need_paren = 1;
}
}
return 4;
}
if ((dialect & PPC_OPCODE_ANY) != 0)
{
dialect = ~PPC_OPCODE_ANY;
goto again;
}
(*info->fprintf_func) (info->stream, ".long 0x%lx", insn);
return 4;
}
void
print_ppc_disassembler_options (FILE *stream)
{
fprintf (stream, "\n\
The following PPC specific disassembler options are supported for use with\n\
the -M switch:\n");
fprintf (stream, " booke|booke32|booke64 Disassemble the BookE instructions\n");
fprintf (stream, " e500|e500x2 Disassemble the e500 instructions\n");
fprintf (stream, " efs Disassemble the EFS instructions\n");
fprintf (stream, " power4 Disassemble the Power4 instructions\n");
fprintf (stream, " gpul Disassemble the GPUL instructions\n");
fprintf (stream, " power5 Disassemble the Power5 instructions\n");
fprintf (stream, " 32 Do not disassemble 64-bit instructions\n");
fprintf (stream, " 64 Allow disassembly of 64-bit instructions\n");
}