4-68.
Enables a single instruction to be used to
specify a large number of operands
indirectly.
1. A
2. B
3. C
4. D
4-69.
In the general process of executing a
machine instruction, what are the major
parts?
1.
2.
3.
4.
Write the instruction to memory,
update the program counter, translate
the instruction, and execute the
instruction
Encode the instruction, execute the
instruction, update the program
counter, and read the instruction from
memory
Increment the instruction register,
update the program counter, decode
the instruction, and execute the
instruction
Read the instruction from memory,
update the program counter, translate
the instruction, and execute the
instruction
4-70.
Which of the following methods can be
used to change the sequence of program
execution?
1. Stop and jump switches only
2. Program instructions only
3. Stop and jump switches and program
instructions
4-71.
Command enables are generated by which
of the following parts of the general
process of machine instruction execution?
1. Fetch the instruction
2. Update the program counter
3. Translate the instruction
4. Execute the instruction
4-72.
The computer executes instructions at two
level or states. Data bits in what register
are used to select the instruction operating
levels?
1. The index register
2. The program counter
3. The instruction register
4. The status indicating register
4-73.
Interrupt processing instructions can be
included in which of the following types of
programs?
1. Executive function programs
2. Application programs to solve a fire
control solution
3. Application programs to compute a
sonobuoy pattern
4. Both 2 and 3 above
4-74.
Which of the following instructions can
only be performed in the executive state?
1. Add instructions
2. Subtract instructions
3. Privileged instructions that are part of
interrupts
4. Read instructions
4-75.
What is the purpose of instruction operand
addressing?
1. To specify the location of the operand
2. To tell when to perform the
instruction
3. To tell whereto obtain the instruction
4. To tell how to obtain the memory
address of the instruction
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