//  [c]
static int analop(RAnal *a, RAnalOp *op, ut64 addr, const ut8 *buf, int len, RAnalOpMask mask) {
	int opsize = -1;
	op->type = -1;
	opsize = 2;
	if (len < 1) {
		return -1;
	}
	switch (buf[0]) {
	case 0x3f:
	case 0x4f:
		op->type = R_ANAL_OP_TYPE_MOV;
		opsize = 4;
		break;
	case 0x6f:
		op->type = R_ANAL_OP_TYPE_MOV;
		opsize = 6;
		break;
	case 0x7f:
		op->type = R_ANAL_OP_TYPE_LEA;
		if (len > 5) {
			op->ptr = buf[2];
			op->ptr |= buf[3] << 8;
			op->ptr |= buf[4] << 16;
			op->ptr |= ((ut32)(0xff & buf[5])) << 24;
			op->ptr += addr;
			opsize = 6;
		} else {
			// error
			op->ptr = UT64_MAX;
		}
		break;
	case 0xbf: // bsr
		op->type = R_ANAL_OP_TYPE_CALL;
		if (len > 5) {
			st32 delta = buf[2];
			delta |= buf[3] << 8;
			delta |= buf[4] << 16;
			delta |= buf[5] << 24;
			op->jump = addr + delta;
		} else {
			op->jump = UT64_MAX;
		}
		op->fail = addr + 6;
		opsize = 6;
		break;
	case 0x00:
		if (len < 2) {
			break;
		}
		if (buf[1] == 0x00) {
			op->type = R_ANAL_OP_TYPE_TRAP;
		} else {
			op->type = R_ANAL_OP_TYPE_JMP;
			{
				st8 delta = buf[0];
				op->jump = addr + delta;
			}
		}
		break;
	case 0xf0:
		if (len < 2) {
			break;
		}
		if (buf[1] == 0xb9) {
			op->type = R_ANAL_OP_TYPE_RET;
		}
		break;
	default:
		if (len < 2) {
			break;
		}
		switch (buf[1]) {
		case 0x00:
			op->type = R_ANAL_OP_TYPE_CJMP; // BCC
			break;
		case 0xf3:
			op->type = R_ANAL_OP_TYPE_SHR;
			break;
		case 0x96: // move.d r, r
			if (buf[0] >= 0xc0) {
				op->type = R_ANAL_OP_TYPE_CMP;
			} else {
				op->type = R_ANAL_OP_TYPE_MOV;
			}
			break;
		case 0xf2:
		case 0x0b:
		case 0x72:
			op->type = R_ANAL_OP_TYPE_CMP;
			break;
		case 0x05:
			if (buf[0] == 0xb0) {
				op->type = R_ANAL_OP_TYPE_NOP;
			}
			break;
		case 0x01:
		case 0x02:
		case 0xc2:
		case 0xf5:
		case 0x91:
		case 0x41:
		case 0x61:
		case 0x65:
			op->type = R_ANAL_OP_TYPE_ADD;
			break;
		case 0x12:
		case 0xf6:
		case 0xe2:
			op->type = R_ANAL_OP_TYPE_SUB;
			break;
		case 0x82: // moveq i, r
		case 0xba: // move.d [r], r
		case 0xeb: // move.d r, [r]
		case 0xc6: // move.d r, r
		case 0x92: // moveq i, r
		case 0x9b: // move.d i, r
		case 0xbe: // move [sp+], srp
		case 0x06:
		case 0x26:
		case 0xfb:
		case 0x9a:
		case 0xb2:
		case 0xda:
		case 0x2b:
		case 0x6f:
		case 0xa2:
		case 0x2f:
		case 0x8b:
		case 0x1b:
		case 0xaa:
		case 0xa6:
		case 0xb6:
			op->type = R_ANAL_OP_TYPE_MOV;
			break;
		case 0xe0:
			op->type = R_ANAL_OP_TYPE_JMP;
			{
				st8 delta = buf[0];
				op->jump = addr + delta;
			}
			break;
		case 0x10:
		case 0x30:
		case 0x20:
		case 0x2d:
			op->type = R_ANAL_OP_TYPE_CJMP;
			op->jump = addr + buf[0];
			op->fail = addr + 2; // delay slot here?
			break;
		case 0xbf:
			op->type = R_ANAL_OP_TYPE_CALL; // bsr
			break;
		case 0xb9:
			op->type = R_ANAL_OP_TYPE_UJMP; // jsr reg
			break;
		}
	}
#if 0
	switch (*buf) {
	case 0x3f: // adds.w N, R
		opsize = 4;
	case 0x01:
	case 0x53: // addi, acr.w, r3, acr
	case 0x04:
	case 0x61:
	case 0x62:
	case 0x63:
		op->type = R_ANAL_OP_TYPE_ADD;
		break;
	case 0x88:
	case 0x84:
	case 0x81:
	case 0x8c:
	case 0xad:
		op->type = R_ANAL_OP_TYPE_SUB;
		break;
	case 0x7f: // lapc <addr>, <reg>
		op->type = R_ANAL_OP_TYPE_LEA;
		break;
	case 0xcf:
	case 0xbe:
	case 0x60:
	case 0x6f:
	case 0x6a: // move.d reg, reg
	case 0x7e:
	case 0xfe:
		op->type = R_ANAL_OP_TYPE_MOV;
		break;
	case 0x00:
		op->type = R_ANAL_OP_TYPE_JMP;
		// jsr acr
		break;
	case 0xff:
		opsize = 6;
	case 0x14:
	case 0x0e:
	case 0x1a:
	case 0x9c:
	case 0x6d: // bne
		op->type = R_ANAL_OP_TYPE_CJMP;
		// jsr acr
		break;
	case 0xbf:
		opsize = 6;
	case 0xb1:
	case 0xb2:
	case 0xb3:
	case 0xb4:
	case 0xb5:
	case 0xb6:
	case 0xb7:
	case 0xb8:
	case 0xb9:
		op->type = R_ANAL_OP_TYPE_UJMP;
		// jsr acr
		break;
	case 0x8f: // test.b [acr]
	case 0xc0:
	case 0xe1:
	case 0xaa:
		op->type = R_ANAL_OP_TYPE_CMP;
		break;
	default:
		switch (*w) {
		case 0xb0b9: //// jsr r0
			op->type = R_ANAL_OP_TYPE_CJMP;
			break;
		case 0xb005:
		case 0x05b0:
			op->type = R_ANAL_OP_TYPE_NOP;
			break;
		case 0xf0b9:
		case 0xb9f0:
			op->type = R_ANAL_OP_TYPE_RET;
			break;
		default:
			op->type = R_ANAL_OP_TYPE_MOV;
			break;
		}
	}
#endif
	op->size = opsize;
	//op->delay = 1;
	return opsize;
}