Motorola CPU32 Bedienungsanleitung Seite 612

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Processor Instruction Summary
A-16 MC68000 FAMILY PROGRAMMER’S REFERENCE MANUAL MOTOROLA
A.1.2 MC68000, MC68008, and MC68010 Addressing Modes
The MC68000, MC68008, and MC68010 support 14 addressing modes as shown in Table
A-5.
N = 1 for byte, 2 for word, and 4 for long word. If An is the stack pointer and
the operand size is byte, N = 2 to keep the stack pointer on a word
boundary.
Table A-5. MC68000, MC68008, and MC68010
Data Addressing Modes
Mode Generation
Register Direct Addressing
Data Register Direct
Address Register Direct
<ea> = Dn
<ea> = An
Absolute Data Addressing
Absolute Short
Absolute Long
<ea> = (Next Word)
<ea> = (Next Two Words)
Program Counter Relative Addressing
Relative with Offset
Relative with Index and Offset
<ea> = (PC) + d
16
<ea> = (PC) + d
8
Register Indirect Addressing
Register Indirect
Postincrement Register Indirect
Predecrement Register Indirect
Register Indirect with Offset
Indexed Register Indirect with Offset
<ea> = (An)
<ea> = (An), An
¯
An + N
An
¯
An–N, <ea> = (An)
<ea> = (An) + d
16
<ea> = (An) + (Xn) + d
8
Immediate Data Addressing
Immediate
Quick Immediate
DATA = Next Word(s)
Inherent Data
Implied Addressing
Implied Register
<ea> = SR, USP, SSP, PC, VBR,
SFC, DFC
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