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author | Jeff Law <law@redhat.com> | 1996-08-31 20:56:05 +0000 |
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committer | Jeff Law <law@redhat.com> | 1996-08-31 20:56:05 +0000 |
commit | 502535cff728b070ac9d121cfb2394551b9cd73b (patch) | |
tree | 5d5b836fdb22debb11fea1e730a0396eb16f7536 /opcodes/v850-dis.c | |
parent | a0a36aa08535f52a9862a867fd5cb8a39393d8fa (diff) | |
download | gdb-502535cff728b070ac9d121cfb2394551b9cd73b.zip gdb-502535cff728b070ac9d121cfb2394551b9cd73b.tar.gz gdb-502535cff728b070ac9d121cfb2394551b9cd73b.tar.bz2 |
* v850-dis.c (v850_reg_names): Define.
(v850_sreg_names, v850_cc_names): Likewise.
(disassemble): Very rough cut at printing operands (unformatted).
One step at a time.
* v850-opc.c (BOP_MASK): Fix.
(v850_opcodes): Fix mask for jarl and jr.
Bugs exposed by disassembler testing.
Diffstat (limited to 'opcodes/v850-dis.c')
-rw-r--r-- | opcodes/v850-dis.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/opcodes/v850-dis.c b/opcodes/v850-dis.c index 3ee3959..413e5e9 100644 --- a/opcodes/v850-dis.c +++ b/opcodes/v850-dis.c @@ -22,6 +22,23 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "opcode/v850.h" #include "dis-asm.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" }; + +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" }; + +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; @@ -51,6 +68,7 @@ disassemble (insn, info) struct disassemble_info *info; { 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) @@ -61,8 +79,42 @@ disassemble (insn, info) { if ((op->mask & insn) == op->opcode) { + const unsigned char *opindex_ptr; + match = 1; (*info->fprintf_func) (info->stream, "%s\t", op->name); + + /* Now print the operands. */ + for (opindex_ptr = op->operands; *opindex_ptr != 0; opindex_ptr++) + { + unsigned long value; + + 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); + } + + /* All done. */ break; } op++; |