R_API int r_anal_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *data, int len) {
int ret = 0;
//len will end up in memcmp so check for negative
if (!anal || len < 0) return -1;
if (anal->pcalign) {
if (addr % anal->pcalign) {
memset (op, 0, sizeof (RAnalOp));
op->type = R_ANAL_OP_TYPE_ILL;
op->addr = addr;
op->size = 1;
return -1;
}
}
if (len > 0 && anal && memset (op, 0, sizeof (RAnalOp)) &&
anal->cur && anal->cur->op && strcmp (anal->cur->name, "null")) {
ret = anal->cur->op (anal, op, addr, data, len);
op->addr = addr;
op->var = get_used_var (anal, op);
if (ret < 1) op->type = R_ANAL_OP_TYPE_ILL;
} else {
if (!memcmp (data, "\xff\xff\xff\xff", R_MIN(4, len))) {
op->type = R_ANAL_OP_TYPE_ILL;
ret = 2; // HACK
} else {
op->type = R_ANAL_OP_TYPE_MOV;
}
}
return ret;
}
R_API int r_anal_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *data, int len, int mask) {
//len will end up in memcmp so check for negative
if (!anal || len < 0) {
return -1;
}
anal->decode = mask & R_ANAL_OP_MASK_ESIL ? true : false;
anal->fillval = mask & R_ANAL_OP_MASK_VAL ? true : false;
if (anal->pcalign) {
if (addr % anal->pcalign) {
memset (op, 0, sizeof (RAnalOp));
op->type = R_ANAL_OP_TYPE_ILL;
op->addr = addr;
op->size = 1;
return -1;
}
}
memset (op, 0, sizeof (RAnalOp));
if (len > 0 && anal->cur && anal->cur->op) {
//use core binding to set asm.bits correctly based on the addr
//this is because of the hassle of arm/thumb
if (anal && anal->coreb.archbits) {
anal->coreb.archbits (anal->coreb.core, addr);
}
int ret = anal->cur->op (anal, op, addr, data, len);
if (ret < 1) {
op->type = R_ANAL_OP_TYPE_ILL;
}
op->addr = addr;
/* consider at least 1 byte to be part of the opcode */
if (op->nopcode < 1) {
op->nopcode = 1;
}
//free the previous var in op->var
RAnalVar *tmp = get_used_var (anal, op);
if (tmp) {
r_anal_var_free (op->var);
op->var = tmp;
}
return ret;
}
if (!memcmp (data, "\xff\xff\xff\xff", R_MIN (4, len))) {
op->type = R_ANAL_OP_TYPE_ILL;
return R_MIN (2, len); // HACK
}
op->type = R_ANAL_OP_TYPE_MOV;
if (op->cycles == 0) {
op->cycles = defaultCycles (op);
}
return R_MIN (2, len); // HACK
}
