| "mov" Examples: Moves location of a value | |
|---|---|
| Instruction | Description |
mov eax, ebx |
Assigns the value in ebx, to eax |
mov eax, 5 |
Assigns the value 5, to eax |
| "add" Examples: Adds a number to another | |
|---|---|
| Instruction | Description |
add eax, ebx |
Adds the value in ebx, to eax, then assigns the result to eax |
add ebx, 5 |
Adds the value 5, to ebx, then assigns the result to ebx |
| "sub" Examples: Subtracts a number from another | |
|---|---|
| Instruction | Description |
sub eax, ebx |
Subtracts the value in ebx, from eax, then assigns the result to eax |
sub ebx, 5 |
Subtracts the value 5, from ebx, then assigns the result to ebx |
| "mul" Examples: Multiplies two Unsigned numbers | |
|---|---|
| Instruction | Description |
mov eax, 5 mul 3 |
Moves 5 into eax. Multiplies what is in eax by 3. Result is 15 in eax. |
mul eax |
Squares eax and assigns the result into eax. |
| "imul" Examples: Multiplies two Signed numbers | |
|---|---|
| Instruction | Description |
mov eax, 5 imul -3 |
Moves 5 into eax. Multiplies what is in eax by -3. Result is -15 in eax. |
imul eax |
Squares eax and assigns the result into eax. |
imul 5 |
Multiplies eax by 5 and assigns the result into eax. |
imul ebx, 5 |
Multiplies ebx by 5 and assigns the result into ebx. |
imul eax, ebx, 5 |
Multiplies ebx by 5 and assigns the result into eax. |
| "neg" Examples: Takes Two's Compliment of a number (Maintains flags) | |
|---|---|
| Instruction | Description |
neg eax |
Replaces eax, with eax's two's compliment |
| "inc" Examples: Adds one to destination | |
|---|---|
| Instruction | Description |
inc eax |
Adds 1 to eax, and assigns the result to eax |
| "dec" Examples: Subtracts one to destination | |
|---|---|
| Instruction | Description |
dec eax |
Subtracts 1 from eax, and assigns the result to eax |