def operand52 = moduleId('word77', 'word78')
        def operand53 = moduleId('word79', 'word80')
        def operand54 = moduleId('stove', 'word81')
        def operand55 = moduleId('word82', 'word83')
        def operand56 = moduleId('word84', 'word85')
        def operand57 = moduleId('stove', 'word86')
        def operand58 = moduleId('root', 'word87')
        def operand59 = moduleId('root', 'word88')

Russ Cox <******@****.***> 1648990796 -0400

    }

    private String makeName(String... words) {
        int expectedLength = 0;
        for (String word : words) {
            if (word != null) {
                expectedLength += word.length();
            }
        }
        StringBuilder builder = new StringBuilder(expectedLength);
        for (String word : words) {
            if (word == null || word.length() == 0) {
                continue;

        toWords("") == ""
        toWords("word") == "word"
        toWords("twoWords") == "two words"
        toWords("TwoWords") == "two words"
        toWords("two words") == "two words"
        toWords("Two Words") == "two words"
        toWords(" Two  \t words\n") == "two words"
        toWords("two_words") == "two words"
        toWords("two.words") == "two words"
        toWords("two,words") == "two words"

}

// Decode decodes an RFC 2047 encoded-word.
func (d *WordDecoder) Decode(word string) (string, error) {
	// See https://tools.ietf.org/html/rfc2047#section-2 for details.
	// Our decoder is permissive, we accept empty encoded-text.
	if len(word) < 8 || !strings.HasPrefix(word, "=?") || !strings.HasSuffix(word, "?=") || strings.Count(word, "?") != 4 {
		return "", errInvalidWord
	}
	word = word[2 : len(word)-2]

	}
}

// TODO(gri) mulAddVWW and divWVW are symmetric operations but
// their signature is not symmetric. Try to unify.

type funWVW func(z []Word, xn Word, x []Word, y Word) (r Word)
type argWVW struct {
	z  nat
	xn Word
	x  nat
	y  Word
	r  Word
}

func testFunWVW(t *testing.T, msg string, f funWVW, a argWVW) {
	z := make(nat, len(a.z))
	r := f(z, a.xn, a.x, a.y)
	for i, zi := range z {

	BNE	R7, out1

	// if less than 8 bytes, do byte copying
	SGTU	$8, R6, R7
	BNE	R7, out1

	// do one byte at a time until 8-aligned
	AND	$7, R9, R8
	BEQ	R8, words1
	ADDV	$-1, R5
	MOVB	(R5), R7
	ADDV	$-1, R9
	MOVB	R7, (R9)
	JMP	-6(PC)

words1:
	// do 8 bytes at a time if there is room
	ADDV	$7, R4, R6 // R6 is start pointer+7

	PCALIGN	$16
	SGTU	R9, R6, R8
	BEQ	R8, out1
	ADDV	$-8, R5
	MOVV	(R5), R7

	BNE	R4, out1

	// if less than 8 bytes, do byte copying
	SGTU	$8, R3, R4
	BNE	R4, out1

	// do one byte at a time until 8-aligned
	AND	$7, R6, R5
	BEQ	R5, words1
	ADDV	$-1, R2
	MOVB	(R2), R4
	ADDV	$-1, R6
	MOVB	R4, (R6)
	JMP	-6(PC)

words1:
	// do 8 bytes at a time if there is room
	ADDV	$7, R1, R3 // R3 is start pointer+7

	SGTU	R6, R3, R5
	BEQ	R5, out1
	ADDV	$-8, R2
	MOVV	(R2), R4
	ADDV	$-8, R6

const Int64Align = goarch.PtrSize

// MinFrameSize is the size of the system-reserved words at the bottom
// of a frame (just above the architectural stack pointer).
// It is zero on x86 and PtrSize on most non-x86 (LR-based) systems.
// On PowerPC it is larger, to cover three more reserved words:
// the compiler word, the link editor word, and the TOC save word.
const MinFrameSize = goarch.MinFrameSize

    private final boolean terminal;
    private final Trie[] transitions;

    public static Trie from(String... words) {
        return from(Arrays.asList(words));
    }

    public static Trie from(Iterable<String> words) {
        Builder builder = new Builder();
        for (String word : words) {
            builder.addWord(word);
        }
        return builder.build();
    }

    public static Builder builder() {