| Mnemonic | Code | Description | Flags | # | Cycles | Comments |
| C Z | ||||||
| ADB | 20 | (P)+A->(P) | * * | 1 | 5 | P+1->P |
| (P+1)+B+C->(P+1) | ||||||
| ADCM | 196 | (P)+A+C->(P) | * * | 1 | 3 | |
| ADIA n | 116,n | A+n->A | * * | 2 | 4 | |
| ADIM n | 112,n | (P)+n->(P) | * * | 2 | 4 | |
| ADM | 68 | (P)+A->(P) | * * | 1 | 3 | |
| ADN | 12 | (P)+A->(P)... | * * | 1 | 7+3*I | P-I-1->P |
| (P-I)+C->(P-I) | BCD | |||||
| ADW | 14 | (P)+(Q)->(P)... | * * | 1 | 7+3*I | P-I-1->P |
| (P-I)+(Q-I)+C-> | Q-I-2->Q | |||||
| (P-I) | BCD | |||||
| ANIA n | 100,n | A AND n->A | - * | 2 | 4 | |
| ANID n | 212,n | (DP) AND n>(DP) | - * | 2 | 6 | |
| ANIM n | 96,n | (P) AND n->(P) | - * | 2 | 4 | |
| ANMA | 70 | (P) AND A->(P) | - * | 1 | 3 | |
| CAL nm | 224,n,m | PC+2>(R-1,R-2) | - - | 2 | 7 | 0<=n<=31 |
| R-2->R, nm->PC | ||||||
| CALL nm | 120,n,m | PC+3->(R-1,R-2), | - - | 3 | 8 | |
| R-2->R, nm->PC | ||||||
| CPIA n | 103,n | A-n | * * | 2 | 4 | |
| CPIM n | 99,n | (P)-n | * * | 2 | 4 | |
| CPMA | 199 | (P)-A | * * | 1 | 3 | |
| DATA | 53 | (BA)...(BA+1)-> | - - | 1 | 11+4*I | auch für |
| (P)...(P+1) | int. ROM | |||||
| DECA | 67 | A-1->A | * * | 1 | 4 | 2->Q |
| DECB | 195 | B-1->B | * * | 1 | 4 | 3->Q |
| DECI | 65 | I-1->I | * * | 1 | 4 | 0->Q |
| DECJ | 193 | J-1->J | * * | 1 | 4 | 1->Q |
| DECK | 73 | K-1->K | * * | 1 | 4 | 8->Q |
| DECL | 201 | L-1->L | * * | 1 | 4 | 9->Q |
| DECP | 81 | P-1->P | - - | 1 | 2 | |
| DECV | 75 | V-1->V | * * | 1 | 4 | 10->Q |
| DECW | 203 | W-1->W | * * | 1 | 4 | 11->Q |
| DX | 5 | X-1->X, X->DP | - - | 1 | 6 | 5->Q |
| DXL | 37 | X-1->X, X->DP, | - - | 1 | 7 | 5->Q |
| (DP)->A | ||||||
| DY | 7 | Y-1->Y, Y->DP | 1 | 6 | 7->Q | |
| DYS | 39 | Y-1->Y, Y->DP, | - - | 1 | 7 | 7->Q |
| A->(DP) | ||||||
| ETC | 105 | FOR i=1 TO H | - * | ) | 1) | |
| n,m | n,nm | IF A=n nm->PC | ||||
| ... | NEXT i | |||||
| nm | ||||||
| EXAB | 218 | A<->B | - - | 1 | 3 | |
| EXAM | 219 | A<->(P) | - - | 1 | 3 | |
| EXB | 11 | (P)...(P+J)<-> | - - | 1 | 6+3*J | P+J+1->P |
| (Q)...(Q+J) | Q+J+1->Q | |||||
| EXBD | 27 | (P)...(P+J)<-> | - - | 1 | 7+6*J | P+J+1->p |
| (DP)...(DP+J) | DP+J->DP | |||||
| EXW | 9 | (P)...(P+I)<-> | - - | 1 | 6+3*I | P+I+1->P |
| (Q)...(Q+I) | Q+I+1->Q | |||||
| EXWD | 25 | (P)...(P+I)<-> | - - | 1 | 7+6*I | P+I+1->P |
| (DP)...(DP+I) | DP+I->DP | |||||
| FILD | 31 | A->(DP)...(DP+I) | - - | 1 | 4+3*1 | DP+I->DP |
| FILM | 30 | A->(P)...(P+I) | - - | 1 | 5+I | P+I+1->P |
| INA | 76 | IA-Port->A | - * | 1 | 2 | |
| IMB | 204 | IB-Port->A | - * | 1 | 2 | |
| INCA | 66 | A+1->A | * * | 1 | 4 | 2->Q |
| INCB | 194 | B+1->B | * * | 1 | 4 | 3->Q |
| INCI | 64 | I+1->I | * * | 1 | 4 | |
| IMCJ | 192 | J+1->J | * * | 1 | 4 | 1->Q |
| INCK | 72 | K+1->K | * * | 1 | 4 | 8->Q |
| JNCL | 200 | L+1->L | * * | 1 | 4 | 9->Q |
| INCP | 80 | P+1->P | - - | 1 | 2 | |
| INCV | 74 | V+1->V | * * | 1 | 4 | 10->Q |
| INCW | 202 | W+1->W | * * | 1 | 4 | |
| IX | 4 | X+1->X, X->DP | - - | 1 | 6 | 5->Q |
| IXL | 36 | X+1->X, X->DP, | - - | 1 | 7 | 5->Q |
| (DP)->A | ||||||
| IY | 6 | Y+1->Y, Y->DP | - - | 1 | 6 | 7->Q |
| IYS | 38 | Y+1->Y, Y->DP, | - - | 1 | 7 | 7->Q |
| A->(DP) | ||||||
| JP nm | 121,n,m | nm->PC | - - | 3 | 6 | |
| JPC nm | 127,n,m | IF C=1 nm->PC | - - | 3 | 6 | |
| JPNC nm | 125,n,m | IF C=0 nm->PC | - - | 3 | 6 | |
| JPNZ nm | 124,n,m | IF Z=0 nm->PC | - - | 3 | 6 | |
| JPZ nm | 126,n,m | IF Z=1 nm->PC | - - | 3 | 6 | |
| JPZM n | 57,n | IF Z=1 | - - | 2 | 7/4 | |
| PC+1-n->PC | ||||||
| JRCN n | 59,n | IF C=1 | - - | 2 | 7/4 | |
| PC+1-n->PC | ||||||
| JRCP n | 58,n | IF C=1 | - - | 2 | 7/4 | |
| PC+1+n->PC | ||||||
| JRM n | 45,n | PC-1-n->PC | - - | 2 | 7 | |
| JRNCM n | 43,n | IF C=0 | 2 | 7/4 | ||
| PC+1-n->PC | ||||||
| JRNCP n | 42,n | IF C=0 | - - | 2 | 7/4 | |
| PC+1+n->PC | ||||||
| JRNZM n | 41,n | IF Z=0 | - - | 2 | 7/4 | |
| PC+1-n->PC | ||||||
| JRNZP n | 40,n | IF Z=0 | - - | 2 | 7/4 | |
| PC+1+n->PC | ||||||
| JRP n | 44,n | PC+1+n->PC | - - | 2 | 7 | |
| JRZN n | 57,n | IF Z=1 | - - | 2 | 7/4 | |
| PC+1-n->PC | ||||||
| JRZP n | 56,n | IF Z=1 | - - | 2 | 7/4 | |
| PC+1+n->PC | ||||||
| LDD | 87 | (DP)->A | - - | 1 | 3 | |
| LDM | 89 | (P)->A | - - | 1 | 2 | |
| LDP | 32 | P->A | - - | 1 | 2 | |
| LDQ | 33 | Q->A | - - | 1 | 2 | |
| LDR | 34 | R->A | - - | 1 | 2 | |
| LIA n | 2,n | n->A | - - | 2 | 4 | |
| LIB n | 3,n | n->B | - - | 2 | 4 | |
| LIDL m | 17,m | m->DPL | - - | 2 | 5 | |
| LIDP nm | 16,n,m | nm->DP | - - | 3 | 8 | |
| LII n | 0,n | n->I | - - | 2 | 4 | |
| LIJ n | 1,n | n->J | - - | 2 | 4 | |
| LIP n | 18,n | n->P | - - | 2 | 4 | |
| LIQ n | 19,n | n->Q | - - | 2 | 4 | |
| LOOP n | 47,n | (R)-1->(R), IF | * * | 2 | 10/7 | |
| C=0 DP+1-n->DP | ||||||
| LP n | 128+n | n->P | - - | 1 | 2 | 0<=n<63 |
| MVB | 10 | (Q)...(Q+J)-> | - - | 1 | 5+2*J | P+J+1->P |
| (P)...(P+J) | Q+J+1->Q | |||||
| MVBD | 26 | (DP)...(DP+J)-> | - - | 1 | 5+4*J | P+J+1->P |
| (P)...(P+J) | DP+J->DP | |||||
| MVDM | 83 | (P)->(DP) | - - | 1 | 3 | |
| MVMD | 85 | (DP)->(P) | - - | 1 | 3 | |
| MVW | 8 | (Q)...(Q+I)-> | - - | 1 | 5+2*I | P+I+1->P |
| (P)...(P+I) | Q+I+1->Q | |||||
| MVWD | 24 | (DP)...(DP+I)-> | - - | 1 | 5+4*I | P+I+1->P |
| (P)...(P+I) | DP+I->DP | |||||
| NOPT | 206 | No Operation | - - | 1 | 3 | |
| NOPW | 77 | No Operation | - - | 1 | 2 | |
| ORIA n | 101,n | A OR n->A | - * | 2 | 4 | |
| ORID n | 213,n | (DP) OR n->(DP) | - * | 2 | 6 | |
| ORIM n | 97,n | (P) OR n->(P) | - * | 2 | 4 | |
| ORMA n | 71,n | (DP) OR n->(DP) | - * | 1 | 3 | |
| OUTA | 93 | (92)->IA-Port | - - | 1 | 3 | 92->Q |
| OUTB | 221 | (93)->IB-Port | - - | 1 | 2 | 93->Q |
| OUTC | 223 | (95)->C-PORT | - - | 1 | 2 | |
| OUTF | 95 | (94)->F0-Port | - - | 1 | 3 | 94->Q |
| POP | 91 | (R)->A, R+1->R | - - | 1 | 2 | |
| PTC | 122 | n->H,nm->(R-1, | - * | 4 | 9 | |
| R-2), R-2->R | ||||||
| PUSH | 52 | (R)->A, R-1->R | - - | 1 | 3 | |
| RC | 209 | 0->C, 1->Z | * * | 1 | 2 | |
| RTN | 55 | (R-1,R-2)->PC | - - | 1 | 4 | |
| R+2->R | ||||||
| SBB | 21 | (P)-1->(P) | * * | 1 | 5 | P+1->P |
| (P+1)-B-C->(P+1) | ||||||
| SBCM | 197 | (P)-A-C->(P) | * * | 1 | 3 | |
| SBIA n | 117,n | A-n->A | * * | 2 | 4 | |
| SBIM n | 113,n | (P)-n->(P) | * * | 2 | 4 | |
| SBM | 69 | (P)-A->(P) | * * | 1 | 3 | |
| SBN | 13 | (P)-A->(P) | * * | 1 | 7+3*I | P-I-1->P |
| (P-I)-C->(P-I) | BCD | |||||
| SBW | 15 | (P)-(Q)->(P) | * * | 1 | 7+3*I | P-I-1->P |
| (P-I)-(Q-I)-C-> | Q-I-2->Q | |||||
| (P-I) | BCD | |||||
| SC | 208 | 1->C, 1->Z | * * | 1 | 2 | |
| SL | 90 | C->A7...A0->C | - - | 1 | 2 | |
| SLW | 29 | (P-1)...(P) | - - | 1 | 5+I | P-I-1->P |
| 4 Bit SL | ||||||
| SR | 210 | C->A0...A7->C | * - | 1 | 2 | |
| SRW | 28 | (P)...(P+I) | - - | 1 | 5+I | P+I+1->P |
| 4 Bit SR | ||||||
| STD | 82 | A->(DP) | - - | 1 | 2 | |
| STP | 48 | A->P | - - | 1 | 2 | |
| STQ | 49 | A->Q | - - | 1 | 2 | |
| STR | 50 | A->R | - - | 1 | 2 | |
| SWP | 88 | A0...A3<-> | - - | 1 | 2 | |
| A4...A7 | ||||||
| TEST n | 107,n | TEST-Byte AND n | - * | 2 | 4 | |
| TSIA n | 102,n | A AND n | - * | 2 | 4 | |
| TSID n | 214,n | (DP) AND n | - * | 2 | 6 | |
| TSIM n | 98,n | (P) AND n | - * | 2 | 4 | |
| WAIT n | 78,n | No Operation | - - | 2 | 6+n |
| Register | Address | Description |
|---|---|---|
| P | 7 bit internal RAM pointer | |
| Q | 7 bit internal RAM pointer | |
| R | 7 bit internal RAM stack pointer | |
| PC | 16 bit program counter | |
| DP | 16 bit data pointer | |
| Z | Zero Flag | |
| C | Carry Flag | |
| D | Internal index (not accessible for users) | |
| I | &00 | Index |
| J | &01 | Index |
| A | &02 | Main Accumulator |
| B | &03 | Secondary Accumulator |
| XL | &04 | X = XL + 256 x XH |
| XH | &05 | |
| YL | &06 | Y = YL + 256 x YH |
| YH | &07 | |
| K | &08 | Common use |
| L | &09 | Common use |
| M | &0A | Common use |
| N | &0B | Common use |
| &0C - &5B | System stack (starts at &5B and descends) | |
| IA | &5C | I/O Port A |
| IB | &5D | I/O Port B |
| FO | &5E | I/O Port F |
| OUTC | &5F | Control Port |
| OR X | &10 - &17 | Operation register |
| OR Y | &18 - &1F | Operation register |
| OR Z | &20 - &27 | Operation register |
| OR W | &28 - &2F | Operation register |
| ERL | &34 | Error number when error occurs |
| LB,HB | &3E, &3F | Actual line number |
| LB,HB | &38, &39 | Beginning of BASIC block, where the running program is |
| LB,HB | &3A, &3B | Address of a found line |
| LB,HB | &3C, &3D | The line number of the found line |
| Bit | Description |
|---|---|
| 0 | System clock 512 ms |
| 1 | System clock 2 ms |
| 2 | - |
| 3 | BRK/ON key |
| 4 | - |
| 5 | - |
| 6 | RESET key |
| 7 | Cassette input - Pin 6 printer, I |
| Bit | Description |
|---|---|
| 0-7 | Keyboard column |
| Bit | Description |
|---|---|
| 0 | - |
| 1 | - |
| 2 | - |
| 3 | Pin 8 printer, I |
| 4 | Pin 9 printer, IO |
| 5 | Pin 3 serial, IO |
| 6 | Pin 5 serial, IO |
| 7 | Pin 8 serial, IO |
| Bit | Description |
|---|---|
| 0 | Display 1=on/0=off |
| 1 | Counter reset |
| 2 | CPU halt |
| 3 | Computer 0=on/1=off |
| 4 | Beeper frequency 0=2kHz/1=4kHz |
| 5 | Beeper 1=on/0=off (off: Bit 4: Beeper 1=on/0=off) |
| 6 | - |
| 7 | - |
| Bit | Description |
|---|---|
| 0 | - |
| 1 | Pin 2 serial, O |
| 2 | Switch RAM bank, 0=bank 0, 1=bank 1 |
| 3 | - |
| 4 | - |
| 5 | - |
| 6 | - |
| 7 | - |
| Value | Description |
|---|---|
| 0-7 | Keyboard row |
| Bit | Description |
|---|---|
| 0 | Pin 4 serial und 11 Drucker, O |
| 1 | Pin 14 serial, O |
| 2 | Pin 11 serial, O |
| 3 | - |
| 4 | - |
| 5 | - |
| 6 | - |
| 7 | - |
| Value | Description |
|---|---|
| 0 | Bank 0 |
| 1 | Bank 1 |
| 2 | Bank 2 |
| 3 | Bank 3 |
| 4 | Bank 4 |
| 5 | Bank 5 |
| 6 | Bank 6 |
| 7 | Bank 7 |

| Bit | Pin | D=11-Pin-Interface | I=In-,O=Output |
|---|---|---|---|
| 4 | 11 | D | IO |
| 5 | 10 | D | IO |
| 6 | 9 | D | IO |
| 7 | 8 | D | IO |
| Bit | Pin Printer |
|---|---|
| 1 | 5 |
| 2 | 4 |

| Bit | Pin | D=11-Pin-Interface | I=In-,O=Output |
|---|---|---|---|
| 6 | 9 | D | IO |
| 7 | 8 | D | IO |
| Bit | Pin Printer |
|---|---|
| 0 | 4 |
| 1 | 5 |

| Bit | Pin | D=11-Pin-Interface | I=In-,O=Output |
|---|---|---|---|
| 6 | 9 | D | IO |
| 7 | 8 | D | IO |
| Bit | Pin Printer |
|---|---|
| 0 | 4 |
| 1 | 5 |

| Bit | Pin | D=11-Pin-Interface | I=In-,O=Output |
|---|---|---|---|
| 6 | 9 | D | IO |
| 7 | 8 | D | IO |
| Bit | Pin Printer |
|---|---|
| 0 | 4 |
| 1 | 5 |
