Motorola M68000 - Instruction Set Summary

2-8 M68000 8-/16-/32-BIT MICROPROCESSOR USER’S MANUAL MOTOROLA
BIT DATA 1 BYTE = 8 BITS
76543210
INTEGER DATA 1 BYTE = 8 BITS
BYTE 0
BYTE 1
BYTE 2
BYTE 3
HIGHER ADDRESSES
76543210
LOWER ADDRESSES
LOWER ADDRESSESBYTE 0
BYTE 1
BYTE 1
(MS BYTE)
(LS BYTE)
(MS BYTE)
(LS BYTE)
WORD 0
WORD 1
HIGHER ADDRESSES
1 WORD = 2 BYTES = 16 BITS
BYTE 0
1 LONG WORD = 2 WORDS = 4 BYTES = 32 BITS
BYTE 0
BYTE 1
BYTE 2
BYTE 3
BYTE 0
BYTE 1
BYTE 2
BYTE 3
HIGH-ORDER
WORD
LOW-ORDER
WORD
LONG WORD 1
LONG WORD 0
HIGH-ORDER
WORD
LOW-ORDER
WORD
LOWER ADDRESSES
HIGHER ADDRESSES
Figure 2-7. Memory Data Organization of the MC68008
2.5 INSTRUCTION SET SUMMARY
Table 2-2 provides an alphabetized listing of the M68000 instruction set listed by
opcode, operation, and syntax. In the syntax descriptions, the left operand is the source
operand, and the right operand is the destination operand. The following list contains the
notations used in Table 2-2.
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
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