MC68008 Просмотр технического описания (PDF) - Freescale Semiconductor
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MC68008 Datasheet PDF : 189 Pages
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Freescale Semiconductor, Inc.
BIT DATA 1 BYTE = 8 BITS
76543210
INTEGER DATA 1 BYTE = 8 BITS
76 543210
BYTE 0
LOWER ADDRESSES
BYTE 1
BYTE 2
BYTE 3
HIGHER ADDRESSES
1 WORD = 2 BYTES = 16 BITS
BYTE 0 (MS BYTE)
BYTE 1 (LS BYTE)
WORD 0
BYTE 0 (MS BYTE)
BYTE 1 (LS BYTE)
WORD 1
LOWER ADDRESSES
HIGHER ADDRESSES
1 LONG WORD = 2 WORDS = 4 BYTES = 32 BITS
BYTE 0
BYTE 1
BYTE 2
BYTE 3
HIGH-ORDER
WORD
LONG WORD 0
LOW-ORDER
WORD
LOWER ADDRESSES
BYTE 0
BYTE 1
BYTE 2
BYTE 3
HIGH-ORDER
WORD
LONG WORD 1
LOW-ORDER
WORD
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.
2-8
M68000 8-/16-/32-BIT MICROPROCESSOR USER’S MANUAL
MOTOROLA
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