Assembly: 

OR rd, rs, rt

nanoMIPS

OR

Purpose:

OR. Compute logical OR of registers $rs and $rt, placing the result in register $rt.

Availability:

nanoMIPS

Format:

OR[32]

001000

rt

rs

rd

x

1010010

000

6

5

5

5

1

7

3

OR[16]

010100

rt3

rs3

11

0

0

6

3

3

2

1

1 

rt = decode_gpr(rt3, 'gpr3')
rs = decode_gpr(rs3, 'gpr3')
rd = rt

Operation: 

GPR[rd] = GPR[rs] | GPR[rt]

Exceptions:

None.