8100236
Description
Flashcards by Lauren Blood, updated more than 1 year ago
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Created by Lauren Blood
over 8 years ago
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| Question | Answer |
| LDA | Load (Load the contents of the given address onto the accumulator.) |
| STA | Store (Store the contents of the accumulator to the RAM of the given address.) |
| ADD | (Add the contents of the given RAM address onto the accumulator.) |
| SUB | Subtract (Subtract the contents of the given RAM address from the accumulator. If value < 0, a negative flag is set for BRP.) |
| INP | Input (Copy the value from the 'input' onto the accumulator.) |
| OUT | Output (Copy the value from the accumulator to the 'output'.) |
| HLT | Halt Program (Causes the Little Man Computer to stop executing the program.) |
| BRZ | Branch if Zero (If the contents of the accumulator are 000, the PC will be set to the given address.) |
| BRP | Branch if Zero or Positive (If the contents of the accumulator are 000 or positive, the PC will be set to the given address.) |
| BRA | Branch Always (Set the contents of the accumulator to the given address.) |
| DAT | Data Location (When compiled, each instruction is converted to a three-digit code and the codes are placed in sequential addresses in RAM. This instruction will reserve the next RAM address for data storage. |
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