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     * that floor(floor(x)/i) == floor(x/i) for any real x and integer i != 0. The proof is not
     * quite trivial.
     */
    long quotient = ((dividend >>> 1) / divisor) << 1;
    long rem = dividend - quotient * divisor;
    return rem - (compare(rem, divisor) >= 0 ? divisor : 0);
  }

  /**
   * Returns the unsigned {@code long} value represented by the given decimal string.
   *

		mips.ACMPGTF, mips.ACMPGTD:
		return true
	}
	return false
}

// IsMIPSMUL reports whether the op (as defined by an mips.A* constant) is
// one of the MUL/DIV/REM/MADD/MSUB instructions that require special handling.
func IsMIPSMUL(op obj.As) bool {
	switch op {
	case mips.AMUL, mips.AMULU, mips.AMULV, mips.AMULVU,
		mips.ADIV, mips.ADIVU, mips.ADIVV, mips.ADIVVU,

	rec, nl, rem := rest[:n-1], rest[n-1:n], rest[n:]
	if nl != "\n" {
		return "", "", s, ErrHeader
	}

	// The first equals separates the key from the value.
	k, v, ok = strings.Cut(rec, "=")
	if !ok {
		return "", "", s, ErrHeader
	}

	if !validPAXRecord(k, v) {
		return "", "", s, ErrHeader
	}
	return k, v, rem, nil
}

  @SuppressWarnings("fallthrough")
  public static long divide(long p, long q, RoundingMode mode) {
    checkNotNull(mode);
    long div = p / q; // throws if q == 0
    long rem = p - q * div; // equals p % q

    if (rem == 0) {
      return div;
    }

    /*
     * Normal Java division rounds towards 0, consistently with RoundingMode.DOWN. We just have to

//	}
	DIV	R18, R22	// 02d2001a
	DIVU	R14, R9		// 012e001b
	DIVV	R8, R13		// 01a8001e
	DIVVU	R16, R19	// 0270001f

//	LREM rreg ',' rreg
//	{
//		outcode(int($1), &$2, 0, &$4);
//	}
	REM	R18, R22	// 02d2001a
	REMU	R14, R9		// 012e001b
	REMV	R8, R13		// 01a8001e
	REMVU	R16, R19	// 0270001f

//	LSHW rreg ',' sreg ',' rreg
//	{
//		outcode(int($1), &$2, int($4), &$6);
//	}