Examples of register use in multiplication
This is an example of multiplication:
Instruction: (with 4 decimal places)
Register M 
Register A 
Register R 

Before 
3.1415 
5.7785 

After 
3.1415 
11.8701 
11.87015775 
If the operation has to be done with another register, the specified register is first copied into M and than the operation is performed. This is an example of multiplication of register B times register A.
Instruction: B(with 1 decimal place)
Register M 
Register A 
Register R 
Register B 

Before 
5.4 
3.1 

Before 
3.1 
5.4 
3.1 

After 
3.1 
16.7 
16.74 
3.1 