Instruction Set Summary
3-4
MC68030 USER’S MANUAL
MOTOROLA
3.2.1 Data Movement Instructions
The MOVE instructions with their associated addressing modes are the basic means of
transferring and storing addresses and data. MOVE instructions transfer byte, word, and
long-word operands from memory to memory, memory to register, register to memory, and
register to register. Address movement instructions (MOVE or MOVEA) transfer word and
long-word operands and ensure that only valid address manipulations are executed. In
addition to the general MOVE instructions, there are several special data movement
instructions: move multiple registers (MOVEM), move peripheral data (MOVEP), move
quick (MOVEQ), exchange registers (EXG), load effective address (LEA), push effective
address (PEA), link stack (LINK), and unlink stack (UNLK).
X = extend (X) bit in CCR
N = negative (N) bit in CCR
Z = Zero (Z) bit in CCR
V = overflow (V) bit in CCR
C = carry (C) bit in CCR
+ = arithmetic addition or postincrement indicator
– = arithmetic subtraction or predecrement indicator
x = arithmetic multiplication
÷
= arithmetic division or conjunction symbol
~ = invert; operand is logically complemented
Λ
= logical AND
V = logical OR
⊕
= logical exclusive OR
Dc = data register, D7-D0 used during compare
Du = data register, D7-D0 used during update
Dr, Dq = data registers, remainder or quotient of divide
Dh, Dl = data registers, high or lo
•
order 32 bits of product
MSW = most significant word
LSW = least significant word
MSB = most significant bit
FC = function code
{R/W} = read or write indicator
[An] = address extensions
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