I represent positive integers of more than 30 bits (ie, >= 1073741824). These values are beyond the range of SmallInteger, and are encoded here as an array of 8-bit digits. Care must be taken, when new values are computed, that any result that COULD BE a SmallInteger IS a SmallInteger (see normalize).

Note that the bit manipulation primitives, bitAnd:, bitShift:, etc., = and ~= run without failure (and therefore fast) if the value fits in 32 bits. This is a great help to the simulator.

	bit manipulation
	bitAnd: bitOr: bitShift: bitXor: hashMultiply highBit highBitOfMagnitude

	comparing
	< <= = > >= ~=

	converting
	normalize

	system primitives
	digitAt: digitAt:put: digitLength replaceFrom:to:with:startingAt:

	testing
	negative positive sign strictlyPositive

	arithmetic	top
	* Primitive. Multiply the receiver by the argument and answer with an Integer result. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	+ Primitive. Add the receiver to the argument and answer with an Integer result. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	- Primitive. Subtract the argument from the receiver and answer with an Integer result. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	/ Primitive. Divide the receiver by the argument and answer with the result if the division is exact. Fail if the result is not a whole integer. Fail if the argument is 0. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	// Primitive. Divide the receiver by the argument and return the result. Round the result down towards negative infinity to make it a whole integer. Fail if the argument is 0. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	\\ Primitive. Take the receiver modulo the argument. The result is the remainder rounded towards negative infinity, of the receiver divided by the argument. Fail if the argument is 0. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	\\\ a faster modulo method for use in DSA. Be careful if you try to use this elsewhere
	abs Answer a Number that is the absolute value (positive magnitude) of the receiver.
	negated Answer a Number that is the negation of the receiver.
	quo: Primitive. Divide the receiver by the argument and return the result. Round the result down towards zero to make it a whole integer. Fail if the argument is 0. Fail if either the argument or the result is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.

	bit manipulation	top
	bitAnd: Primitive. Answer an Integer whose bits are the logical AND of the receiver's bits and those of the argument. Fail if the receiver or argument is greater than 32 bits. See Object documentation whatIsAPrimitive.
	bitOr: Primitive. Answer an Integer whose bits are the logical OR of the receiver's bits and those of the argument. Fail if the receiver or argument is greater than 32 bits. See Object documentation whatIsAPrimitive.
	bitShift: Primitive. Answer an Integer whose value (in twos-complement representation) is the receiver's value (in twos-complement representation) shifted left by the number of bits indicated by the argument. Negative arguments shift right. Zeros are shifted in from the right in left shifts. The sign bit is extended in right shifts. Fail if the receiver or result is greater than 32 bits. See Object documentation whatIsAPrimitive.
	bitXor: Primitive. Answer an Integer whose bits are the logical XOR of the receiver's bits and those of the argument. Fail if the receiver or argument is greater than 32 bits. See Object documentation whatIsAPrimitive.
	hashMultiply Truncate to 28 bits and try again
	highBit Answer the index of the high order bit of the receiver, or zero if the receiver is zero. Raise an error if the receiver is negative, since negative integers are defined to have an infinite number of leading 1's in 2's-complement arithmetic. Use >>highBitOfMagnitude if you want to get the highest bit of the magnitude.
	highBitOfMagnitude Answer the index of the high order bit of the magnitude of the receiver, or zero if the receiver is zero. This method is used for LargeNegativeIntegers as well, since Squeak's LargeIntegers are sign/magnitude.

	comparing	top
	< Primitive. Compare the receiver with the argument and answer true if the receiver is less than the argument. Otherwise answer false. Fail if the argument is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	<= Primitive. Compare the receiver with the argument and answer true if the receiver is less than or equal to the argument. Otherwise answer false. Fail if the argument is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	= Primitive. Compare the receiver with the argument and answer true if the receiver is equal to the argument. Otherwise answer false. Fail if the receiver or argument is negative or greater than 32 bits. Optional. See Object documentation whatIsAPrimitive.
	> Primitive. Compare the receiver with the argument and answer true if the receiver is greater than the argument. Otherwise answer false. Fail if the argument is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	>= Primitive. Compare the receiver with the argument and answer true if the receiver is greater than or equal to the argument. Otherwise answer false. Fail if the argument is not a SmallInteger or a LargePositiveInteger less than 2-to-the-30th (1073741824). Optional. See Object documentation whatIsAPrimitive.
	~= Primitive. Compare the receiver with the argument and answer true if the receiver is equal to the argument. Otherwise answer false. Fail if the receiver or argument is negative or greater than 32 bits. Optional. See Object documentation whatIsAPrimitive.

	converting	top
	normalize Check for leading zeroes and return shortened copy if so

	system primitives	top
	digitAt: Primitive. Answer the value of an indexable field in the receiver. LargePositiveInteger uses bytes of base two number, and each is a 'digit' base 256. Fail if the argument (the index) is not an Integer or is out of bounds. Essential. See Object documentation whatIsAPrimitive.
	digitAt:put: Primitive. Store the second argument (value) in the indexable field of the receiver indicated by index. Fail if the value is negative or is larger than 255. Fail if the index is not an Integer or is out of bounds. Answer the value that was stored. Essential. See Object documentation whatIsAPrimitive.
	digitLength Primitive. Answer the number of indexable fields in the receiver. This value is the same as the largest legal subscript. Essential. See Object documentation whatIsAPrimitive.
	replaceFrom:to:with:startingAt: Primitive. This destructively replaces elements from start to stop in the receiver starting at index, repStart, in the collection, replacement. Answer the receiver. Range checks are performed in the primitive only. Optional. See Object documentation whatIsAPrimitive.

	testing	top
	negative Answer whether the receiver is mathematically negative.
	positive Answer whether the receiver is positive or equal to 0. (ST-80 protocol). See also strictlyPositive
	sign Optimization. Answer 1 since receiver is greater than 0.
	strictlyPositive Answer whether the receiver is mathematically positive.

	testing	top
	initializedInstance Answer an instance of the receiver which in some sense is initialized. In the case of Morphs, this will yield an instance that can be attached to the Hand after having received the same kind of basic initialization that would be obtained from an instance chosen from the 'new morph' menu. Return nil if the receiver is reluctant for some reason to return such a thing
	test: Time millisecondsToRun: [LargePositiveInteger test: 100] 1916