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nop
No operation
Function
Standard)
Extension 1) Unusable
Extension 2) Unusable
15 14 13 12 11 10
Code
0
0
0
|
|
IL
IE
C
Flag
|
|
–
–
–
Mode
–
CLK
One cycle
Description
(1) Standard
The nop instruction just takes one cycle and no operation results. The PC is incremented (+2).
(2) Delayed slot instruction
This instruction may be executed as a delayed slot instruction by writing it directly after a
branch instruction with the "d" bit.
Example
nop
nop
S1C17 CORE MANUAL
(Rev. 1.2)
No operation
9
8
7
6
|
0
0
0
0
0
0
0
|
|
|
|
|
|
V
Z
N
|
|
|
–
–
–
; Waits 2 cycles
Seiko Epson Corporation
5
4
3
2
1
0
0
0
0
0
0
0
|
|
|
|
|
|
7 DETAILS OF INSTRUCTIONS
7-109
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