Syntax:

• IOR Rd3 BS Rs0 Rs1

Description:

Performs a bitwise OR operation between the contents of Rs0 and Rs1, and puts the result to Rd3. Instruction is performed according to BS (bank select). Instruction is stack conditioned.

Microcode Pattern:

Takes 4 cycles to execute.
    Example: IOR 0xA3 2 0xA0 0xA1

	  
	 MPC  BS3 C3 P3 P1 P0
	---------------------
	 IOR   0  0  00 A1 A0
	  -    0  0  00 00 00
	  -    0  0  00 00 00
	  -    2  0  A3 00 00

	  

Exceptions :

No exceptions.

Example :

IOR 0x20 1 0x22 0x21 !! Perform bitwise OR 
                     !! between the contents 
                     !! of low banks of registers 
                     !! 0x21 and 0x22, then
                     !! put the result to 
                     !! register 0x20