Write LMC code that will reset the value of the memory location labelled total to zero and then stop the program.
Understand the Problem
The question is asking to write a code in LMC (Little Man Computer) that resets a specific memory location, labelled 'total', to zero and then stops the program.
Answer
```assembly LDA 00 STA 01 HLT ```
Answer for screen readers
LDA 00
STA 01
HLT
Steps to Solve
-
Load the value zero We need to initialize the accumulator with the value zero. In LMC, we can use the instruction
LDA 00, where00is the memory location containing zero. -
Store the value in the 'total' location After loading zero into the accumulator, we will store this value in the memory location labeled 'total' (let's assume 'total' is at memory location 01). We will use the instruction
STA 01. -
Stop the program Finally, we need to stop the execution of the program using the instruction
HLT.
The complete LMC code will look like this:
LDA 00 ; Load the value 0
STA 01 ; Store it in 'total'
HLT ; Halt the program
LDA 00
STA 01
HLT
More Information
This LMC code resets the memory location labeled 'total' to zero and stops the execution. In LMC, memory locations from 00 to 99 are used to store values, where 00 can represent the value zero, and 'total' is assumed to be at location 01.
Tips
- Forgetting to load the value of zero before storing it.
- Misnaming the memory location for 'total' or using an incorrect address.
- Not halting the program at the end.
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