Solution
The correct answer is HLT.
Key Points
- A pseudo-instruction is an instruction in assembly language that is not directly translated into a single machine code instruction but is instead used by the assembler to perform tasks such as setting memory addresses or marking the end of a program.
- ORG (origin) sets the starting address for the program or data.
- DEC (declare) is used to define constants or allocate storage.
- END marks the end of the source code.
However, HLT (halt) is an actual machine instruction used to stop the execution of the processor. Therefore, HLT is not a pseudo-instruction.
Thus, the correct answer is 4) HLT.
Additional Information
- A pseudo-op is associated with nursing instruction in the assembly program.
- A pseudo-operation usually referred to as a pseudo-op, is associated in Nursing instruction with the assembly program that doesn't generate any computer code. The assembly program resolves pseudo-ops throughout the assembly, in contrast to machine directions, that area unit is resolved solely at runtime. Pseudo-ops area units are typically referred to as assembly program directions, assembly program operators, or assembly program directives.
- In general, pseudo-ops offer the assembly program data concerning knowledge alignment, block and section definition, and base register assignment. The assembly program conjointly supports pseudo-ops that offer the assembly program data concerning floating purpose constants and symbolic programme data (dbx).
