indirect encoding
Microinstruction format. Simple approach is to allocate one bit for each control signal. - Results in long microinstructions, since the number of control signals. is usually very large. - Few bits are set to 1 in any microinstruction, speed, more microinstructions to generate the required. control functions. Horizontal organization:.
Encoding of control signals at control memory address. • When the control signals in a microinstruction are stored in control memory with encoding, then the number of storage bits at each address can be reduced as per the design. • A design selects how many bits to encode out of the needed ones and how many groups of
Aug 22, 2017 S.N., Horizontal Microinstruction, Vertical Microinstruction. 1, Horizontal microinstruction format is minimal encoded scheme in which many resources can be controlled with single Microinstruction, Vertical microinstruction format use compact codes to specify control functions in each Microinstruction.
MicroInstruction Formats - Computer Organization Video Tutorial - Computer Organization video tutorials for, B.Tech, MCA, GATE, IES, and other PSUs exams preparation and to help Computer Science Engineering Students covering Signals, Number System and Conversion, Concept of Coding, Code Conversion, Binary,
Types of microinstruction formats: There are three types of microinstruction formats. Horizontal Format, called Horizontal microcode; Vertical Format, called Vertical microcode; Field-encoded Format. Each of these formats provides a trade off in terms of the control store size and the speed of operation of the

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February 2018