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Added ARCompact analysis

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This commit is contained in:
Anton Kochkov 2013-07-13 04:06:17 +04:00
parent d694014146
commit 8c9af77581
1 changed files with 63 additions and 1 deletions
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64
libr/anal/p/anal_arc.c
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@ -9,6 +9,7 @@
static int arc_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *data, int len) {
const ut8 *b = (ut8 *)data;
memset (op, '\0', sizeof (RAnalOp));
op->length = 4;
if (anal->bits == 32) {
/* ARCtangent A4 */
@ -55,8 +56,69 @@ static int arc_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *data, int len)
}
} else {
/* ARCompact ISA */
op->fail = addr + 4;
ut8 basecode = (b[3] & 0xf8) >> 3;
switch (basecode) {
case 0x0:
{
ut64 imm = ((((b[0] & 0xc0) >> 6) | (b[1] << 2)) << 11) |
((((b[2] & 0xfe) >> 1) | ((b[3] & 0x7) << 8)) << 1);
if (imm != 0) {
op->type = R_ANAL_OP_TYPE_CJMP;
op->jump = imm;
}
}
break;
case 0x01:
op->type = R_ANAL_OP_TYPE_CJMP;
op->jump = 0;
break;
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
break;
default:
/* This is 16 bit instruction */
op->length = 2;
op->fail = addr + 2;
basecode = (b[1] & 0xf8) >> 3;
switch (basecode) {
case 0x0c:
case 0x0d:
op->type = R_ANAL_OP_TYPE_ADD;
break;
case 0x0e:
op->type = R_ANAL_OP_TYPE_MOV;
break;
case 0x1b:
op->type = R_ANAL_OP_TYPE_MOV;
break;
case 0x1c:
if (b[0] & 0x80)
op->type = R_ANAL_OP_TYPE_CMP;
else
op->type = R_ANAL_OP_TYPE_ADD;
break;
case 0x1d:
case 0x1e:
case 0x1f:
op->type = R_ANAL_OP_TYPE_CJMP;
op->jump = 0;
break;
default:
break;
}
break;
}
}
return op->length = 4;
return op->length;
}
struct r_anal_plugin_t r_anal_plugin_arc = {