| Class | Description |
|---|---|
| Instr |
A data type used for assembly language without assigned registers.
|
| LABEL |
A point within the program to which a jump may go.
|
| Main | |
| MOVE |
Holds an assembly-language instruction that performs only data transfer
|
| OPER |
Holds an assembly-instruction, a list of operand registers,
and a list of result registers.
|