| Abbreviation | Definition |
|---|---|
| SAHF | Store Register AH into |
| SAL | Shift Arithmetic Left |
| SALU | Structured Assembly Language Utilities |
| SAMS | Symbols And Message Strings |
| SAR | Shift Arithmetic Right |
| SASV | Sunday Assembly Silicon Valley |
| SAT | Save As Text |
| SATA | Serial Advanced Technology Architecture |
| SB | Scroll Bar |
| SB | Set Byte |
| SBB | Subtract with Borrow |
| SBIW | Word-wide Subtraction |
| SBZ | Should Be Zero |
| SC | Skip Conditionally |
| SC | Special Character |
| SC | Special Code |
| SCAS | Scan String |
| SCASB | Scan String Byte |
| SCASD | Scan String Doubleword |
| SCASW | Scan String Word |