NAME	CMPM -- Compare memory
SYNOPSIS	CMPM (Ay)+,(Ax)+ Size = (Byte, Word, Long)
FUNCTION	Subtracts the source operand from the destination operand and sets the condition codes according to the result. The destination operand is NOT changed. Operands are always addressed with the postincrement mode.
FORMAT	15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 1 0 1 1 Ax REGISTER 1 SIZE 0 0 1 Ay REGISTER   <ea>
SIZE	00 -> one Byte operation 01 -> one Word operation 10 -> one Long operation
REGISTER	Ax register specifies destination operand (for post-incrementation). Ay register specifies source operand.
RESULT	X - Not affected N - Set if the result is negative. Cleared otherwise. Z - Set if the result is zero. Cleared otherwise. V - Set if an overflow occours. Cleared otherwise. C - Set if a borrow occours. Cleared otherwise.

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