Instruction Execution Timing
MOTOROLA
M68060 USER’S MANUAL
10-15
times for the MOVE16 instruction are shown in
Table 10-8.1 These execution times assume cache misses for both read and write MOVE16
accesses. Execution times are 11(1/1) if the read access hits in the operand data
cache. Note, for this instruction the operand read/write refers to a line-sized transfer.
Table 10-6. Move Byte and Word Execution Times
Source
Destination
Dn
An
(An)
(An)+
–(An)
(d16,An)
(d8,An,Xi
SF)
(bd,An,Xi
SF)
(xxx).WL
Dn
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
1(0/1)
2(0/1)
1(0/1)
An
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
1(0/1)
2(0/1)
1(0/1)
(An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(An)+
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
–(An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d16,An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d8,An,Xi
SF)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(bd,An,Xi
SF)
2(1/0) 2(1/0) 3(1/1) 3(1/1) 3(1/1)
3(1/1)
4(1/1)
3(1/1)
(xxx).W
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(xxx).L
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d16,PC)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d8,PC,Xi
SF)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(bd,PC,Xi
SF)
2(1/0) 2(1/0) 3(1/1) 3(1/1) 3(1/1)
3(1/1)
4(1/1)
3(1/1)
#<data>
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
2(0/1)
3(0/1)
2(0/1)
Table 10-7. Move Long Execution Times
Source
Destination
Dn
An
(An)
(An)+
–(An)
(d16,An)
(d8,An,Xi
SF)
(bd,An,Xi
SF)
(xxx).WL
Dn
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
1(0/1)
2(0/1)
1(0/1)
An
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
1(0/1)
2(0/1)
1(0/1)
(An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(An)+
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
–(An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d16,An)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d8,An,Xi
SF)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(bd,An,Xi
SF)
2(1/0) 2(1/0) 3(1/1) 3(1/1) 3(1/1)
3(1/1)
4(1/1)
3(1/1)
(xxx).W
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(xxx).L
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d16,PC)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(d8,PC,Xi
SF)
1(1/0) 1(1/0) 2(1/1) 2(1/1) 2(1/1)
2(1/1)
3(1/1)
2(1/1)
(bd,PC,Xi
SF)
2(1/0) 2(1/0) 3(1/1) 3(1/1) 3(1/1)
3(1/1)
4(1/1)
3(1/1)
#<data>
1(0/0) 1(0/0) 1(0/1) 1(0/1) 1(0/1)
2(0/1)
3(0/1)
2(0/1)
Table 10-8. MOVE16 Execution Times
Source
Destination
(Ax)
(Ax)+
(xxx).L
(Ay)
—
18(1/1)1
(Ay)+
—
18(1/1)1
(xxx).L
18(1/1)1
—