Microprogramming

Question 1
Horizontal microprogramming
A
does not require use of signal decoders
B
results in larger sized microinstructions than vertical microprogramming
C
uses one bit for each control signal
D
all of the above
       Computer-Organization       Microprogramming       Gate-2002
Question 1 Explanation: 
In horizontal microprogramming the instruction size is less as compared to vertical microprogramming. So, there is no need for decoding. But, one bit is used for all control signals to execute the microinstruction. If the bit is set to ‘1’ the control signal field is activated. If the bit is set to ‘0’ the control signal field is deactivated
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