The following addressing mode notations are allowed in the operand field for the RS08:
| Addressing Mode | Notation | Example |
|---|---|---|
| Inherent | No operands | RTS |
| Tiny | <expression> | ADD fourbits |
| Short | <expression> | CLR fivebits |
| Direct | <expression> | ADC byte |
| Extended | <expression> | JSR word |
| Relative | <label> | BRA Label |
| Immediate | #<expression> | ADC #$01 |
| Indexed | D[X] or ,X | ADC D[X] or ADC ,X |