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| Addressing Type |
Flag Bits | Notation | Calculation of Target Address |
Operand | Notes |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | i | x | b | p | e | |||||
| Simple | 1 | 1 | 0 | 0 | 0 | 0 | op c | disp | (TA) | Direct-addressing Instruction |
| 1 | 1 | 0 | 0 | 0 | 1 | +op m | addr | (TA) | Format 4 & Direct-addressing Instruction | |
| 1 | 1 | 0 | 0 | 1 | 0 | op m | (PC) + disp | (TA) | Assember selects either base-relative or program-counter relative mode | |
| 1 | 1 | 0 | 1 | 0 | 0 | op m | (B) + disp | (TA) | Assember selects either base-relative or program-counter relative mode | |
| 1 | 1 | 1 | 0 | 0 | 0 | op c,X | disp + (X) | (TA) | Direct-addressing Instruction | |
| 1 | 1 | 1 | 0 | 0 | 1 | +op m,X | addr + (X) | (TA) | Format 4 & Direct-addressing Instruction | |
| 1 | 1 | 1 | 0 | 1 | 0 | op m,X | (PC) + disp + (X) | (TA) | Assember selects either base-relative or program-counter relative mode | |
| 1 | 1 | 1 | 1 | 0 | 0 | op m,X | (B) + disp + (X) | (TA) | Assember selects either base-relative or program-counter relative mode | |
| 0 | 0 | 0 | - | - | - | op m | b/p/e/disp | (TA) | Direct-addressing Instruction; SIC compatible format. | |
| 0 | 0 | 1 | - | - | - | op m,X | b/p/e/disp + (X) | (TA) | Direct-addressing Instruction; SIC compatible format. | |
| Indirect | 1 | 0 | 0 | 0 | 0 | 0 | op @c | disp | ((TA)) | Direct-addressing Instruction |
| 1 | 0 | 0 | 0 | 0 | 1 | +op @m | addr | ((TA)) | Format 4 & Direct-addressing Instruction | |
| 1 | 0 | 0 | 0 | 1 | 0 | op @m | (PC) + disp | ((TA)) | Assember selects either base-relative or program-counter relative mode | |
| 1 | 0 | 0 | 1 | 0 | 0 | op @m | (B) + disp | ((TA)) | Assember selects either base-relative or program-counter relative mode | |
| Immediate | 0 | 1 | 0 | 0 | 0 | 0 | op #c | disp | TA | Direct-addressing Instruction |
| 0 | 1 | 0 | 0 | 0 | 1 | op #m | addr | TA | Format 4 & Direct-addressing Instruction | |
| 0 | 1 | 0 | 0 | 1 | 0 | op #m | (PC) + disp | TA | Assember selects either base-relative or program-counter relative mode | |
| 0 | 1 | 0 | 1 | 0 | 0 | op #m | (B) + disp | TA | Assember selects either base-relative or program-counter relative mode | |
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