
CPU32+
MOTOROLA
MC68360 USER’S MANUAL
5-19
5.3.3.2 DATA MOVEMENT INSTRUCTIONS.
The MOVE instruction is the basic means of
transferring and storing address and data. MOVE instructions transfer byte, word, and long-
word operands from memory to memory, memory to register, register to memory, and reg-
ister 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). Table 5-4 is a summary of the
data movement operations.
5.3.3.3 INTEGER ARITHMETIC OPERATIONS.
The arithmetic operations include the four
basic operations of add (ADD), subtract (SUB), multiply (MUL), and divide (DIV) as well as
arithmetic compare (CMP, CMPM, CMP2), clear (CLR), and negate (NEG). The instruction
set includes ADD, CMP, and SUB instructions for both address and data operations with all
Table 5-3. Condition Code Computations (Continued)
Note: The following notations apply to this table only.
—
=
Not affected
Sm
= Source operand MSB
U
=
Undefined
Dm
= Destination operand MSB
=
See special definition
Rm
= Result operand MSB
=
General case
R
= Register tested
X
=
C
n
= Bit Number
N
=
Rm
r
= Shift count
Z
=
Rm
Λ
...
Λ
R0
LB
= Lower bound
Λ
=
Boolean AND
UB
= Upper bound
V
=
Boolean OR
Rm
= NOT Rm
Table 5-4. Data Movement Operations
Instruction
Operand
Syntax
Operand
Size
Operation
EXG
Rn, Rn
32
Rn
Rn
ea
An
SP – 4
SP, An
(SP); SP
An, SP + d
SP
Source
Destination
Source
Destination
Listed registers
Destination
Source
Listed registers
LEA
ea
, An
An, #
d
ea
,
ea
ea
, An
list,
ea
ea
, list
32
LINK
16, 32
MOVE
8, 16, 32
MOVEA
16, 32
32
MOVEM
16, 32
16, 32
32
MOVEP
Dn, (d16, An)
(d16, An), Dn
16, 32
Dn [31:24]
(An + d); Dn [23:16]
(An + d + 2);
Dn [15:8]
(An + d + 4); Dn [7:0]
(An + d + 6)
(An + d)
Dn [31:24]; (An + d + 2)
Dn [23:16];
(An + d + 4)
Dn [15:8]; (An + d + 6)
Dn [7:0]
MOVEQ
#
data
,
Dn
ea
8
32
Immediate Data
Destination
SP – 4
SP;
ea
SP
An
SP; (SP)
An, SP + 4
SP
PEA
32
UNLK
An
32