switch name {
	case "AR":
		if 0 <= n && n <= 15 {
			return s390x.REG_AR0 + n, true
		}
	case "F":
		if 0 <= n && n <= 15 {
			return s390x.REG_F0 + n, true
		}
	case "R":
		if 0 <= n && n <= 15 {
			return s390x.REG_R0 + n, true
		}
	case "V":
		if 0 <= n && n <= 31 {
			return s390x.REG_V0 + n, true
		}
	}
	return 0, false

//go:build linux && s390x
// +build linux,s390x

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//

//go:build linux && !s390x && !arm && !386
// +build linux,!s390x,!arm,!386

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//

//go:build linux && !s390x && !arm && !386
// +build linux,!s390x,!arm,!386

// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//

			// 3-operand jumps.
			// First two must be registers
			target = &a[2]
			prog.From = a[0]
			prog.Reg = p.getRegister(prog, op, &a[1])
			break
		}
		if p.arch.Family == sys.S390X {
			// 3-operand jumps.
			target = &a[2]
			prog.From = a[0]
			if a[1].Reg != 0 {
				// Compare two registers and jump.
				prog.Reg = p.getRegister(prog, op, &a[1])
			} else {

	// Note that there is no list of names as there is for x86.
	for i := s390x.REG_R0; i <= s390x.REG_R15; i++ {
		register[obj.Rconv(i)] = int16(i)
	}
	for i := s390x.REG_F0; i <= s390x.REG_F15; i++ {
		register[obj.Rconv(i)] = int16(i)
	}
	for i := s390x.REG_V0; i <= s390x.REG_V31; i++ {
		register[obj.Rconv(i)] = int16(i)
	}
	for i := s390x.REG_AR0; i <= s390x.REG_AR15; i++ {
		register[obj.Rconv(i)] = int16(i)
	}

//go:build linux && !s390x && !arm && !386
// +build linux,!s390x,!arm,!386

// Copyright (c) 2015-2023 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//

	testEndToEnd(t, "riscv64", "riscv64")
}

func TestRISCVErrors(t *testing.T) {
	testErrors(t, "riscv64", "riscv64error")
}

func TestS390XEndToEnd(t *testing.T) {
	testEndToEnd(t, "s390x", "s390x")

}

func TestLOONG64OperandParser(t *testing.T) {
	parser := newParser("loong64")
	testOperandParser(t, parser, loong64OperandTests)
}

func TestS390XOperandParser(t *testing.T) {
	parser := newParser("s390x")
	testOperandParser(t, parser, s390xOperandTests)
}

func TestFuncAddress(t *testing.T) {
	type subtest struct {
		arch  string
		tests []operandTest
	}
	for _, sub := range []subtest{

		if goos == "darwin" {
			return []string{"-arch", "arm64"}
		}
	case "386":
		return []string{"-m32"}
	case "arm":
		return []string{"-marm"} // not thumb
	case "s390":
		return []string{"-m31"}
	case "s390x":
		return []string{"-m64"}
	case "mips64", "mips64le":
		if gomips64 == "hardfloat" {
			return []string{"-mabi=64", "-mhard-float"}
		} else if gomips64 == "softfloat" {