// Expect (SB), (FP), (PC), or (SP)
	p.get('(')
	reg := p.get(scanner.Ident).String()
	p.get(')')
	p.setPseudoRegister(a, reg, isStatic, prefix)
}

// setPseudoRegister sets the NAME field of addr for a pseudo-register reference such as (SB).
func (p *Parser) setPseudoRegister(addr *obj.Addr, reg string, isStatic bool, prefix rune) {
	if addr.Reg != 0 {
		p.errorf("internal error: reg %s already set in pseudo", reg)
	}
	switch reg {

		}
	} else if reg <= arm64.REG_V31 && reg >= arm64.REG_V0 {
		switch ext {
		case "B8":
			if isIndex {
				return errors.New("invalid register extension")
			}
			a.Reg = arm64.REG_ARNG + (reg & 31) + ((arm64.ARNG_8B & 15) << 5)
		case "B16":
			if isIndex {
				return errors.New("invalid register extension")
			}
			a.Reg = arm64.REG_ARNG + (reg & 31) + ((arm64.ARNG_16B & 15) << 5)

			// the CR bit.
			prog.Reg = a[1].Reg
			if a[1].Type != obj.TYPE_REG {
				// The CR bit is represented as a constant 0-31. Convert it to a Reg.
				c := p.getConstant(prog, op, &a[1])
				reg, success := ppc64.ConstantToCRbit(c)
				if !success {
					p.errorf("invalid CR bit register number %d", c)
				}
				prog.Reg = reg
			}
			break
		}

        WitnessRegisterResponse mockResponse = mock(WitnessRegisterResponse.class);
        lenient().when(mockResponse.isSuccess()).thenReturn(true);
        lenient().when(mockResponse.getRegistrationId()).thenReturn("test-reg-123");

        WitnessRpcClient mockRpc = mock(WitnessRpcClient.class);
        lenient().when(mockRpc.register(any(WitnessRegisterRequest.class))).thenReturn(mockResponse);

//	}
	ABSD	F1, F2

//	LFADD freg ',' freg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	ADDD	F1, F2

//	LFADD freg ',' freg ',' freg
//	{
//		outcode(int($1), &$2, int($4.Reg), &$6);
//	}
	ADDD	F1, F2, F3

//	LFCMP freg ',' freg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	CMPEQD	F1, F2


//
// WORD
//
	WORD	$1	// 00000001
	NOOP		// 00000000

				}
			}

			regUsersList = regUsersList[count:]
		}

		if took := time.Since(regUsersLoadStartTime); took > maxIAMLoadOpTime {
			actualLoaded := len(cache.iamUsersMap)
			logger.Info("Reg. users load took %.2fs (for %d items with %d expired items)", took.Seconds(),
				len(regUsersList), len(regUsersList)-actualLoaded)
		}

		bootstrapTraceMsgFirstTime("loading regular IAM groups")

	for i := arm64.REG_V0; i <= arm64.REG_V31; i++ {
		register[obj.Rconv(i)] = int16(i)
	}

	// System registers.
	for i := 0; i < len(arm64.SystemReg); i++ {
		register[arm64.SystemReg[i].Name] = arm64.SystemReg[i].Reg
	}

	register["LR"] = arm64.REGLINK

	// Pseudo-registers.
	register["SB"] = RSB
	register["FP"] = RFP
	register["PC"] = RPC
	register["SP"] = RSP
	// Avoid unintentionally clobbering g using R28.

        this.lastHeartbeat = registrationTime;
        this.flags = WITNESS_REGISTER_IP_NOTIFICATION;
    }
    
    private String generateRegistrationId() {
        return "REG-" + System.currentTimeMillis() + "-" + 
               Integer.toHexString(System.identityHashCode(this));
    }
    
    public long getNextSequenceNumber() {
        return sequenceNumber.incrementAndGet();
    }

			if length > 0 && field.Size > 0 {
				alterColumn = true
			} else {
				// has size in data type and not equal
				// Since the following code is frequently called in the for loop, reg optimization is needed here
				matches2 := regFullDataType.FindAllStringSubmatch(fullDataType, -1)
				if !field.PrimaryKey &&
					(len(matches2) == 1 && matches2[0][1] != fmt.Sprint(length) && ok) {
					alterColumn = true

// satisfies io.Seeker.
func TestReadTruncation(t *testing.T) {
	var ss []string
	for _, p := range []string{
		"testdata/gnu.tar",
		"testdata/ustar-file-reg.tar",
		"testdata/pax-path-hdr.tar",
		"testdata/sparse-formats.tar",
	} {
		buf, err := os.ReadFile(p)
		if err != nil {
			t.Fatalf("unexpected error: %v", err)
		}
		ss = append(ss, string(buf))
	}