/* Disassembler for the i860.
- Copyright 2000 Free Software Foundation, Inc.
+ Copyright 2000, 2003 Free Software Foundation, Inc.
Contributed by Jason Eckhardt <jle@cygnus.com>.
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"};
-/* Control/status register names (encoded as 0..5 in the instruction). */
+/* Control/status register names (encoded as 0..11 in the instruction).
+ Registers bear, ccr, p0, p1, p2 and p3 are XP only. */
static const char *const crnames[] =
- {"fir", "psr", "dirbase", "db", "fsr", "epsr", "", ""};
+ {"fir", "psr", "dirbase", "db", "fsr", "epsr", "bear", "ccr",
+ "p0", "p1", "p2", "p3", "--", "--", "--", "--" };
-/* Prototypes. */
-static int sign_ext PARAMS((unsigned int, int));
-static void print_br_address PARAMS((disassemble_info *, bfd_vma, long));
-
/* True if opcode is xor, xorh, and, andh, or, orh, andnot, andnoth. */
#define BITWISE_OP(op) ((op) == 0x30 || (op) == 0x31 \
/* Sign extend N-bit number. */
static int
-sign_ext (x, n)
- unsigned int x;
- int n;
+sign_ext (unsigned int x, int n)
{
int t;
t = x >> (n - 1);
/* Print a PC-relative branch offset. VAL is the sign extended value
from the branch instruction. */
static void
-print_br_address (info, memaddr, val)
- disassemble_info *info;
- bfd_vma memaddr;
- long val;
+print_br_address (disassemble_info *info, bfd_vma memaddr, long val)
{
long adj = (long)memaddr + 4 + (val << 2);
/* Print one instruction. */
int
-print_insn_i860 (memaddr, info)
- bfd_vma memaddr;
- disassemble_info *info;
+print_insn_i860 (bfd_vma memaddr, disassemble_info *info)
{
bfd_byte buff[4];
unsigned int insn, i;
const char *s;
int val;
- /* If this a flop and its dual bit is set, prefix with 'd.'. */
- if ((insn & 0xfc000000) == 0x48000000 && (insn & 0x200))
+ /* If this a flop (or a shrd) and its dual bit is set,
+ prefix with 'd.'. */
+ if (((insn & 0xfc000000) == 0x48000000
+ || (insn & 0xfc000000) == 0xb0000000)
+ && (insn & 0x200))
(*info->fprintf_func) (info->stream, "d.%s\t", opcode->name);
else
(*info->fprintf_func) (info->stream, "%s\t", opcode->name);
/* Control register. */
case 'c':
(*info->fprintf_func) (info->stream, "%s%s", I860_REG_PREFIX,
- crnames[(insn >> 21) & 0x7]);
+ crnames[(insn >> 21) & 0xf]);
break;
/* 16-bit immediate (sign extend, except for bitwise ops). */