20 Questions
What is the effective address in the Index mode (Ri, Rj)?
Sum of the contents of registers Ri and Rj
What is another version of the Index mode that uses two registers and a constant?
X(Ri, Rj)
In X(PC), what does PC represent?
Program Counter
How does the Index mode provide more flexibility in accessing operands?
By allowing changes to both components of the effective address
What does X represent in X(Ri, Rj)?
Constant value
Which part of the Index mode helps access multiple components inside items in a record?
(Ri, Rj)
What is the purpose of using X(PC) in addressing?
Addressing relative locations from the current position
In what way does X(Ri, Rj) differ from (Ri, Rj)?
(Ri, Rj) involves a constant X
What dimension does X(Ri, Rj) help implement in memory addressing?
3
Which register is commonly used as a base register in indexed addressing modes?
Program Counter (PC)
How is the Index mode (Ri, Rj) different from X(Ri, Rj)?
The former accesses a memory location X bytes away, while the latter accesses based on the sum of constant X and register values
Which component in the Index mode (Ri, Rj) helps provide flexibility in accessing operands?
Sum of Ri and Rj
What does X represent in X(Ri, Rj)?
Constant value
How does using X(PC) in addressing differ from using X(Ri, Rj)?
X(PC) accesses based on PC value only, while X(Ri, Rj) accesses based on the sum of register values and constant X
What role does the base register play in Index mode?
It specifies the beginning of an item in a record
In which version of the Index mode are two registers and a constant used?
(Ri, Rj, X)
How does the second register in Index mode contribute to operand access flexibility?
By containing the offset value X
What does (Ri, Rj) represent in Index mode addressing?
Sum of two general-purpose registers
Which part of X(Ri, Rj) indicates the distance from a memory location?
X
What type of array structure does (Ri, Rj) help implement?
Three-dimensional array
This quiz covers the five functionally independent main parts of a computer: input, memory, arithmetic logic unit (ALU), output, and control unit. It explains how input devices accept coded information as source programs, which are either stored in memory or immediately processed by the processor. The program stored in memory determines the processing steps involved in converting a source program to an object program.
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