SX User’s Manual Rev. 3.1 82 © 2000 Scenix Semiconductor, Inc. All rights reserved. www.scenix.com Chapter 3 Instruction Set 3.6.14    INC fr Increment fr Operation: fr = fr +1 Bits affected: Z Opcode: 0010 101f ffff Description: This instruction increments the specified register file by one. If  the  file  register  contains  FFh  and  is  incremented  to  00h,  the  Z  bit  is  set.
Otherwise, the bit is cleared. Cycles: 1 Example: inc $18 This example increments file register 18h.