EasyManuals Logo

Motorola MC68020 User Manual

Motorola MC68020
306 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #235 background imageLoading...
Page #235 background image
8- 20 M68020 USER’S MANUAL MOTOROLA
8.2.6 MOVE Instruction
The MOVE instruction table indicates the number of clock periods needed for the
processor to fetch, calculate, and perform the MOVE or MOVEA with the specified source
and destination effective addresses, including both levels of indirection on memory indirect
addressing modes. No additional tables are needed to calculate the total effective
execution time for the MOVE or MOVEA instruction. The total number of clock cycles is
outside the parentheses; the number of read, prefetch, and write cycles is given inside the
parentheses as (r/p/w). These cycles are included in the total clock cycle number.
BEST CASE
Destination
Source Address Mode An Dn (An) (An)+ –(An) (d
16
,An) (xxx).W (xxx).L
Rn 0(0/0/0)
0(0/0/0) 3(0/0/1) 4(0/0/1) 3(0/0/1) 3(0/0/1) 3(0/0/1) 5(0/0/1)
#<data>.B,W 0(0/0/0)
0(0/0/0) 3(0/0/1) 4(0/0/1) 3(0/0/1) 3(0/0/1) 3(0/0/1) 5(0/0/1)
#<data>.L 0(0/0/0)
0(0/0/0) 3(0/0/1) 4(0/0/1) 3(0/0/1) 3(0/0/1) 3(0/0/1) 5(0/0/1)
(An) 3(1/0/0)
3(1/0/0) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 8(1/0/1)
(An)+ 4(1/0/0)
4(1/0/0) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 9(1/0/1)
–(An) 3(1/0/0)
3(1/0/0) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 8(1/0/1)
(d
16
,An) or (d
16
,PC) 3(1/0/0)
3(1/0/0) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 8(1/0/1)
(xxx).W 3(1/0/0)
3(1/0/0) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 8(1/0/1)
(xxx).L 3(1/0/0)
3(1/0/0) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 6(1/0/1) 8(1/0/1)
(d
8
,An,Xn) or (d
8
,PC,Xn) 4(1/0/0)
4(1/0/0) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 9(1/0/1)
(d
16
,An,Xn) or (d
16
,PC,Xn) 4(1/0/0)
4(1/0/0) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 9(1/0/1)
(B) 4(1/0/0)
4(1/0/0) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 7(1/0/1) 9(1/0/1)
(d
16
,B) 6(1/0/0)
6(1/0/0) 9(1/0/1) 9(1/0/1) 9(1/0/1) 9(1/0/1) 9(1/0/1) 11(1/0/1)
(d
32
,B) 10(1/0/0)
10(1/0/0) 13(1/0/1) 13(1/0/1) 13(1/0/1) 13(1/0/1) 13(1/0/1) 15(1/0/1)
([B],I) 9(2/0/0)
9(2/0/0) 12(2/0/1) 12(2/0/1) 12(2/0/1) 12(2/0/1) 12(2/0/1) 14(2/0/1)
([B],I,d
16
) 11(2/0/0)
11(2/0/0) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 16(2/0/1)
([B],I,d
32
) 11(2/0/0)
11(2/0/0) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 16(2/0/1)
([d
16
,B],I) 11(2/0/0)
11(2/0/0) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 14(2/0/1) 16(2/0/1)
([d
16
,B],I,d
16
) 13(2/0/0)
13(2/0/0) 16(2/0/1) 16(2/0/1) 16(2/0/1) 16(2/0/1) 16(2/0/1) 18(2/0/1)
([d
16
,B],d
32
) 13(2/0/0)
13(2/0/0) 16(2/0/1) 16(2/0/1) 16(2/0/1) 16(2/0/1) 16(2/0/1) 18(2/0/1)
([d
32
,B],I) 15(2/0/0)
15(2/0/0) 18(2/0/1) 18(2/0/1) 18(2/0/1) 18(2/0/1) 18(2/0/1) 20(2/0/1)
([d
32
,B],I,d
16
) 17(2/0/0)
17(2/0/0) 20(2/0/1) 20(2/0/1) 20(2/0/1) 20(2/0/1) 20(2/0/1) 22(2/0/1)
([d
32
,B],I,d
32
) 17(2/0/0)
17(2/0/0) 20(2/0/1) 20(2/0/1) 20(2/0/1) 20(2/0/1) 20(2/0/1) 22(2/0/1)

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Motorola MC68020 and is the answer not in the manual?

Motorola MC68020 Specifications

General IconGeneral
BrandMotorola
ModelMC68020
CategoryComputer Hardware
LanguageEnglish

Related product manuals