18 Questions
What is the purpose of the operation code in a machine instruction?
Specifies the operation to be performed
In machine instruction, what does the source operand reference refer to?
Input for the operation
How are operands represented in machine language programs?
Symbolically
What is the purpose of the result operand reference in a machine instruction?
Results of the operation
Where can an instruction's next instruction reference point to in a processor?
I/O device
What is required to construct binary machine instructions from symbolic input in a program?
Conversion of opcodes and operands to binary form
Which instruction stops instruction execution and places the processor in a halt state?
HLT
Which instruction performs no operation and takes up space in the instruction stream?
NOP
Which instruction checks the state of one or more status flags in the register?
Jcc
Which instruction interrupts the current program and runs a specified interrupt program?
INT
Which instruction transfers program control to a different point in the instruction stream without recording the return information?
JMP
Which instruction is a multi-byte instruction that does not impact the machine context?
JMP
What is the primary purpose of data transfer instructions in machine language?
To transfer data between memory, registers, or stack
Which components must be specified in a data transfer instruction?
Source operand, destination operand, and length of data
What is the role of addressing mode in data transfer instructions?
It identifies the location of the source and destination operands
In the context of instruction cycle, what is typically the next instruction to be fetched?
The instruction following the current instruction
When is an explicit reference to the next instruction needed in an instruction cycle?
When the program flow is determined by conditional or unconditional branches
What is the primary purpose of machine instructions categorized as data storage instructions?
To store data into registers or memory locations
Test your knowledge on different categories of instructions in computer architecture, such as data processing, data storage, and data movement. Understand the importance of translating high-level language programs into machine language for execution. Based on concepts from Stallings' 2019 book.
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