| Code |
Short name |
Full name |
Description
|
| 0 |
NOP |
No operation |
|
| 1 |
CP Op1, Op2 |
Copy |
Copy data from one operand to another
|
| 2 |
CMP Op1, Op2 |
Compare |
Compare two operands
|
| 3 |
INC Op1 |
Increment |
Increment operand by one
|
| 4 |
DEC Op1 |
Decrement |
Decrement operand by one
|
| 5 |
IN Op1, (Op2) |
Input |
Read data to Op1 from I/O port Op2
|
| 6 |
OUT (Op1), Op2 |
Output |
Write data Op2 to I/O port Op1
|
| 7 |
HALT |
Halt |
Stops execution of program
|
| 8 |
ADD Op1, Op2 |
Addition |
Add Op2 to Op1
|
| 9 |
SUB Op1, Op2 |
Subtraction |
Subtract Op2 from Op1
|
| 10 |
MUL Op1, Op2 |
Multiplication |
Multiply Op1 by Op2
|
| 11 |
DIV Op1, Op2 |
Division |
Divide Op1 by Op2
|
| 12 |
MOD Op1, Op2 |
Modulo |
Set Op1 to remainder of division of Op1 by Op2
|
| 13 |
AND Op1, Op2 |
Logical AND |
Set Op1 to logical AND of Op1 and Op2
|
| 14 |
OR Op1, Op2 |
Logical OR |
Set Op1 to logical OR of Op1 and Op2
|
| 15 |
XOR Op1, Op2 |
Exclusive OR |
Set Op1 to logical XOR of Op1 and Op2
|
| 16 |
CALL Op1 |
Call subroutine |
Store return address to stack and jump to given address by Op1
|
| 17 |
RET |
Return from subroutine |
Return to address stored on top of stack
|
| 18 |
SHL Op1 |
Shift left |
Shift all bits in Op1 to the left
|
| 19 |
SHR Op1 |
Shift right |
Shift all bits in Op1 to the right
|
| 20 |
JP Op1 |
Jump to absolute address |
Set program counter to new absolute address
|
| 21 |
JR Op1 |
Jump to relative address |
Set program counter to new address relative from current
|
| 22 |
PUSH Op1 |
Push to stack |
Put Op1 to the top of stack
|
| 23 |
POP Op1 |
Pop from stack |
Pop Op1 from the top of stack
|
| 24 |
BIT Op1, Op2 |
Test bit |
Test if bit at position Op2 in Op1 is set
|
| 25 |
SET Op1, Op2 |
Set bit |
Set bit at position Op2 in Op1 to 1
|
| 26 |
RES Op1, Op2 |
Reset bit |
Set bit at position Op2 in Op1 to 0
|