© 2000 Scenix Semiconductor, Inc. All rights reserved. 105 SX User’s Manual Rev. 3.1 www.scenix.com Chapter 3 Instruction Set 3.6.35    NOP No Operation Operation: none Bits affected: none Opcode: 0000 0000 0000 Description: This instruction does nothing except to cause a one-cycle delay in program execu- tion. Cycles: 1 Example: sb $05.4 ;set bit 4 in Port A nop ;no operation, 1-cycle delay sb $05.6 ;set bit 5 in Port A This  example  shows  how  a  “nop”  instruction  can  be  used  as  a  one-cycle  delay
between two successive read-modify-write instructions that modify the same I/O
port. This delay ensures reliable results at high clock rates.