| ADD |
Adds the destination operand (Addr 1) to the source operand and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| SUB |
Subtracts the source operand from the destination operand (Addr 1) and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| MUL |
Performs a multiplication of the destination operand (Addr 1) and the source operand and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| DIV |
Divides the value in the destination operand (Addr 1) by the source operand and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| AND |
Performs a bitwise AND between the destination operand (Addr 1) and the source operand and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| OR |
Performs a bitwise OR between the destination operand (Addr 1) and the source operand and then stores the result in the destination operand. The source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| CMP |
Compares the first source operand (Addr 1) with the second source operand and sets the FLAGS register according to the results. The second source operand can be a register (Addr 2) or a immediate value. When an immediate value is used as an operand, the mod bit shall be set to 1. |
| NOT |
If the mod bit set to 1, performs a bitwise NOT operation on the source operand (Addr 2) and stores the result in the destination operand (Addr 1). If the mod bit set to 0, sets the inverse boolean value in the destination operand (Addr 1). |
| LDR |
Loads the first source operand (Addr 1) from the memory location specified by second source operand. The second source operand can be a register (Addr 2) or a value pointed by register PC. When a register is used as an operand, the mod bit shall be set to 1. |
| STR |
Stores the first source operand (Addr 1) in the memory location specified by second source operand. The second source operand can be a register (Addr 2) or a value pointed by register PC. When a register is used as an operand, the mod bit shall be set to 1. |
| STB |
Stores the first 8 bits of the first source operand (Addr 1) in the memory location specified by second source operand. The second source operand can be a register (Addr 2) or a value pointed by register PC. When a register is used as an operand, the mod bit shall be set to 1. |
| MOV |
Copies the source operand to the destination operand (Addr 1). The source operand can be a register (Addr 2) or a value pointed by register PC. When a register is used as an operand, the mod bit shall be set to 1. |
| PUSH |
Stores the source operand (Addr 1) on the top of the stack and then decrements the stack pointer. |
| POP |
Increments the stack pointer and then loads the value from the top of the stack to the destination operand (Addr 1) |
| JMP |
If immediate value is equal to UINT8_MAX or FLAGS register, transfers program control to a different point in the memory. The destination operand specifies memory location being jumped to. The destination operand can be a register (Addr 1) or a value pointed by register PC. When a register is used as an operand, the mod bit shall be set to 1. |
| TRAP |
Execute trap routine. |