Microprocessor from Zilog, wich is used in the Amstrad CPC Computers. The Z80/Z80A was a very popular microprocessor, used in a great variety of home computers and appliances as far-fetched as satelites. It was even used in the Commodore C128 as a secondary processor in order to achieve CP/M compatibility.
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Opcodes
Check the end of the document for explanations of abbreviations used below.
| Mnemonic | Clock | Size | SZHPNC | Opcode | Description | Notes | |
| ADC A, r | 4 | 1 | *** V0 * | 88 + rb | Add with Carry | A = A + s + CY | |
| ADC A, N | 7 | 2 | CE XX | ||||
| ADC A, (HL) | 7 | 1 | 8E | ||||
| ADC A, (IX + N) | 19 | 3 | DD 8E XX | ||||
| ADC A, (IY + N) | 19 | 3 | FD 8E XX | ||||
| ADC HL, BC | 15 | 2 | **? V0 * | ED 4A | Add with Carry | HL = HL + ss + CY | |
| ADC HL, DE | 15 | 2 | ED 5A | ||||
| ADC HL, HL | 15 | 2 | ED 6A | ||||
| ADC HL, SP | 15 | 2 | ED 7A | ||||
| ADD A, r | 4 | 1 | *** V0 * | 80 + rb | Add (8-bit) | A = A + s | |
| ADD A, N | 7 | 2 | C6 XX | ||||
| ADD A, (HL) | 7 | 1 | 86 | ||||
| ADD A, (IX + N) | 19 | 3 | DD 86 XX | ||||
| ADD A, (IY + N) | 19 | 3 | FD 86 XX | ||||
| ADD HL, BC | 11 | 1 | --?- 0 * | 09 | Add (16-bit) | HL = HL + ss | |
| ADD HL, DE | 11 | 1 | 19 | ||||
| ADD HL, HL | 11 | 1 | 29 | ||||
| ADD HL, SP | 11 | 1 | 39 | ||||
| ADD IX, BC | 15 | 2 | --?- 0 * | DD 09 | Add (IX register) | IX = IX + pp | |
| ADD IX, DE | 15 | 2 | DD 19 | ||||
| ADD IX, IX | 15 | 2 | DD 29 | ||||
| ADD IX, SP | 15 | 2 | DD 39 | ||||
| ADD IY, BC | 15 | 2 | --?- 0 * | FD 09 | Add (IY register) | IY = IY + rr | |
| ADD IY, | 15 | 2 | FD 19 | ||||
| ADD IY, IY | 15 | 2 | FD 29 | ||||
| ADD IY, SP | 15 | 2 | FD 39 | ||||
| AND r | 4 | 1 | ***P00 | A0+rb | Logical AND | A=A&s | |
| AND N | 7 | 2 | E6 XX | ||||
| AND (HL) | 7 | 1 | A6 | ||||
| AND (IX+N) | 19 | 3 | DD A6 XX | ||||
| AND (IY+N) | 19 | 3 | FD A6 XX | ||||
| BIT b,r | 8 | 2 | ?*1?0- | CB 40+8*b+rb | Test Bit | m&{2^b} | |
| BIT b,(HL) | 12 | 2 | CB 46+8*b | ||||
| BIT b,(IX+N) | 20 | 4 | DD CB XX 46+8*b | ||||
| BIT b,(IY+N) | 20 | 4 | FD CB XX 46+8*b | ||||
| CALL NN | 17 | 3 | ------ | CD XX XX | Unconditional Call | -(SP)=PC,PC=nn | |
| CALL C,NN | 17/1 | 3 | ------ | DC XX XX | Conditional Call | If Carry = 1 | |
| CALL NC,NN | 17/1 | 3 | D4 XX XX | If carry = 0 | |||
| CALL M,NN | 17/1 | 3 | FC XX XX | If Sign = 1 (negative) | |||
| CALL P,NN | 17/1 | 3 | F4 XX XX | If Sign = 0 (positive) | |||
| CALL Z,NN | 17/1 | 3 | CC XX XX | If Zero = 1 (ans.=0) | |||
| CALL NZ,NN | 17/1 | 3 | C4 XX XX | If Zero = 0 (non-zero) | |||
| CALL PE,NN | 17/1 | 3 | EC XX XX | If Parity = 1 (even) | |||
| CALL PO,NN | 17/1 | 3 | E4 XX XX | If Parity = 0 (odd) | |||
| CCF | 4 | 1 | --?-0* | 3F | Complement Carry Flag | CY=~CY | |
| CP r | 4 | 1 | ***V1* | B8+rb | Compare | Compare A-s | |
| CP N | 7 | 2 | FE XX | ||||
| CP (HL) | 7 | 1 | BE | ||||
| CP (IX+N) | 19 | 3 | DD BE XX | ||||
| CP (IY+N) | 19 | 3 | FD BE XX | ||||
| CPD | 16 | 2 | ****1- | ED A9 | Compare and Decrement | A-(HL),HL=HL-1,BC=BC-1 | |
| CPDR | 21/1 | 2 | ****1- | ED B9 | Compare, Dec., Repeat | CPD till A=(HL)or BC=0 | |
| CPI | 16 | 2 | ****1- | ED A1 | Compare and Increment | A-(HL),HL=HL+1,BC=BC-1 | |
| CPIR | 21/1 | 2 | ****1- | ED B1 | Compare, Inc., Repeat | CPI till A=(HL)or BC=0 | |
| CPL | 4 | 1 | --1-1- | 2F | Complement | A=~A | |
| DAA | 4 | 1 | ***P-* | 27 | Decimal Adjust Acc. | A=BCD format (dec.) | |
| DEC A | 4 | 1 | ***V1- | 3D | Decrement (8-bit) | s=s-1 | |
| DEC B | 4 | 1 | 05 | ||||
| DEC C | 4 | 1 | 0D | ||||
| DEC D | 4 | 1 | 15 | ||||
| DEC E | 4 | 1 | 1D | ||||
| DEC H | 4 | 1 | 25 | ||||
| DEC L | 4 | 2 | 2D | ||||
| DEC (HL) | 11 | 1 | 35 | ||||
| DEC (IX+N) | 23 | 3 | DD 35 XX | ||||
| DEC (IY+N) | 23 | 3 | FD 35 XX | ||||
| DEC BC | 6 | 1 | ------ | 0B | Decrement (16-bit) | ss=ss-1 | |
| DEC DE | 6 | 1 | 1B | ||||
| DEC HL | 6 | 1 | 2B | ||||
| DEC SP | 6 | 1 | 3B | ||||
| DEC IX | 10 | 2 | ------ | DD 2B | Decrement | xx=xx-1 | |
| DEC IY | 10 | 2 | FD 2B | ||||
| DI | 4 | 1 | ------ | F3 | Disable Interrupts | ||
| DJNZ $+2 | 13/8 | 1 | ------ | 10 | Dec., Jump Non-Zero | B=B-1 till B=0 | |
| EI | 4 | 1 | ------ | FB | Enable Interrupts | ||
| EX (SP),HL | 19 | 1 | ------ | E3 | Exchange | (SP)<->HL | |
| EX (SP),IX | 23 | 2 | ------ | DD E3 | (SP)<->xx | ||
| EX (SP),IY | 23 | 2 | FD E3 | ||||
| EX AF,AF' | 4 | 1 | ------ | 08 | AF<->AF' | ||
| EX DE,HL | 4 | 1 | ------ | EB | DE<->HL | ||
| EXX | 4 | 1 | ------ | D9 | Exchange | qq<->qq' (except AF) | |
| HALT | 4 | 1 | ------ | 76 | Halt | ||
| IM 0 | 8 | 2 | ------ | ED 46 | Interrupt Mode | (n=0,1,2)| | |
| IM 1 | 8 | 2 | ED 56 | ||||
| IM 2 | 8 | 2 | ED 5E | ||||
| IN A,(N) | 11 | 2 | ------ | DB XX | Input | A=(n) | |
| IN (C) | 12 | 2 | ***P0- | ED 70 | Input* | (Unsupported) | |
| IN A,(C) | 12 | 2 | ***P0- | ED 78 | Input | r=(C) | |
| IN B,(C) | 12 | 2 | ED 40 | ||||
| IN C,(C) | 12 | 2 | ED 48 | ||||
| IN D,(C) | 12 | 2 | ED 50 | ||||
| IN E,(C) | 12 | 2 | ED 58 | ||||
| IN H,(C) | 12 | 2 | ED 60 | ||||
| IN L,(C) | 12 | 2 | ED 68 | ||||
| INC A | 4 | 1 | ***V0- | 3C | Increment (8-bit) | r=r+1 | |
| INC B | 4 | 1 | 04 | ||||
| INC C | 4 | 1 | 0C | ||||
| INC D | 4 | 1 | 14 | ||||
| INC E | 4 | 1 | 1C | ||||
| INC H | 4 | 1 | 24 | ||||
| INC L | 4 | 1 | 2C | ||||
| INC BC | 6 | 1 | ------ | 03 | Increment (16-bit) | ss=ss+1 | |
| INC DE | 6 | 1 | 13 | ||||
| INC HL | 6 | 1 | 23 | ||||
| INC SP | 6 | 1 | 33 | ||||
| INC IX | 10 | 2 | ------ | DD 23 | Increment | xx=xx+1 | |
| INC IY | 10 | 2 | FD 23 | ||||
| INC (HL) | 11 | 1 | ***V0- | 34 | Increment (indirect) | (HL)=(HL)+1 | |
| INC (IX+N) | 23 | 3 | ***V0- | DD 34 XX | Increment | (xx+d)=(xx+d)+1 | |
| INC (IY+N) | 23 | 3 | FD 34 XX | ||||
| IND | 16 | 2 | ?*??1- | ED AA | Input and Decrement | (HL)=(C),HL=HL-1,B=B-1 | |
| INDR | 21/1 | 2 | ?1??1- | ED BA | Input, Dec., Repeat | IND till B=0 | |
| INI | 16 | 2 | ?*??1- | ED A2 | Input and Increment | (HL)=(C),HL=HL+1,B=B-1 | |
| INIR | 21/1 | 2 | ?1??1- | ED B2 | Input, Inc., Repeat | INI till B=0 | |
| JP NN | 10 | 3 | ------ | C3 XX XX | Unconditional Jump | PC=nn | |
| JP (HL) | 4 | 1 | ------ | E9 | PC=(HL) | ||
| JP (IX) | 8 | 2 | ------ | DD E9 | PC=(xx) | ||
| JP (IY) | 8 | 2 | FD E9 | ||||
| JP C,$NN | 10/1 | 3 | ------ | DA XX XX | Conditional Jump | If Carry = 1 | |
| JP NC,$NN | 10/1 | 3 | D2 XX XX | If Carry = 0 | |||
| JP M,$NN | 10/1 | 3 | FA XX XX | If Sign = 1 (negative) | |||
| JP P,$NN | 10/1 | 3 | F2 XX XX | If Sign = 0 (positive) | |||
| JP Z,$NN | 10/1 | 3 | CA XX XX | If Zero = 1 (ans.= 0) | |||
| JP NZ,$NN | 10/1 | 3 | C2 XX XX | If Zero = 0 (non-zero) | |||
| JP PE,$NN | 10/1 | 3 | EA XX XX | If Parity = 1 (even) | |||
| JP PO,$NN | 10/1 | 3 | E2 XX XX | If Parity = 0 (odd) | |||
| JR $N+2 | 12 | 2 | ------ | 18 XX | Relative Jump | PC=PC+e | |
| JR C,$N+2 | 12/7 | 2 | ------ | 38 XX | Cond. Relative Jump | If cc JR(cc=C,NC,NZ,Z) | |
| JR NC,$N+2 | 12/7 | 2 | 30 XX | ||||
| JR Z,$N+2 | 12/7 | 2 | 28 XX | ||||
| JR NZ,$N+2 | 12/7 | 2 | 20 XX | ||||
| LD I,A | 9 | 2 | ------ | ED 47 | Load* | dst=src | |
| LD R,A | 9 | 2 | ED 4F | ||||
| LD A,I | 9 | 2 | **0*0- | ED 57 | Load* | dst=src | |
| LD A,R | 9 | 2 | ED 5F | ||||
| LD A,r | 4 | 1 | ------ | 78+rb | Load (8-bit) | dst=src | |
| LD A,N | 7 | 2 | 3E XX | ||||
| LD A,(BC) | 7 | 1 | 0A | ||||
| LD A,(DE) | 7 | 1 | 1A | ||||
| LD A,(HL) | 7 | 1 | 7E | ||||
| LD A,(IX+N) | 19 | 3 | DD 7E XX | ||||
| LD A,(IY+N) | 19 | 3 | FD 7E XX | ||||
| LD A,(NN) | 13 | 3 | 3A XX XX | ||||
| LD B,r | 4 | 1 | 40+rb | ||||
| LD B,N | 7 | 2 | 06 XX | ||||
| LD B,(HL) | 7 | 1 | 46 | ||||
| LD B,(IX+N) | 19 | 3 | DD 46 XX | ||||
| LD B,(IY+N) | 19 | 3 | FD 46 XX | ||||
| LD C,r | 4 | 1 | 48+rb | ||||
| LD C,N | 7 | 2 | 0E XX | ||||
| LD C,(HL) | 7 | 1 | 4E | ||||
| LD C,(IX+N) | 19 | 3 | DD 4E XX | ||||
| LD C,(IY+N) | 19 | 3 | FD 4E XX | ||||
| LD D,r | 4 | 1 | 50+rb | ||||
| LD D,N | 7 | 2 | 16 XX | ||||
| LD D,(HL) | 7 | 1 | 56 | ||||
| LD D,(IX+N) | 19 | 3 | DD 56 XX | ||||
| LD D,(IY+N) | 19 | 3 | FD 56 XX | ||||
| LD E,r | 4 | 1 | 58+rb | ||||
| LD E,N | 7 | 2 | 1E XX | ||||
| LD E,(HL) | 7 | 1 | 5E | ||||
| LD E,(IX+N) | 19 | 3 | DD 5E XX | ||||
| LD E,(IY+N) | 19 | 3 | FD 5E XX | ||||
| LD H,r | 4 | 1 | 60+rb | ||||
| LD H,N | 7 | 2 | 26 XX | ||||
| LD H,(HL) | 7 | 1 | 66 | ||||
| LD H,(IX+N) | 19 | 3 | DD 66 XX | ||||
| LD H,(IY+N) | 19 | 3 | FD 66 XX | ||||
| LD L,r | 4 | 1 | 68+rb | ||||
| LD L,N | 7 | 2 | 2E XX | ||||
| LD L,(HL) | 7 | 1 | 6E | ||||
| LD L,(IX+N) | 19 | 3 | DD 6E XX | ||||
| LD L,(IY+N) | 19 | 3 | FD 6E XX | ||||
| LD BC,(NN) | 20 | 4 | ------ | ED 4B XX XX | Load (16-bit) | dst=src | |
| LD BC,NN | 10 | 3 | 01 XX XX | ||||
| LD DE,(NN) | 20 | 4 | ED 5B XX XX | ||||
| LD DE,NN | 10 | 3 | 11 XX XX | ||||
| LD HL,(NN) | 20 | 3 | 2A XX XX | ||||
| LD HL,NN | 10 | 3 | 21 XX XX | ||||
| LD SP,(NN) | 20 | 4 | ED 7B XX XX | ||||
| LD SP,HL | 6 | 1 | F9 | ||||
| LD SP,IX | 10 | 2 | DD F9 | ||||
| LD SP,IY | 10 | 2 | FD F9 | ||||
| LD SP,NN | 10 | 3 | 31 XX XX | ||||
| LD IX,(NN) | 20 | 4 | DD 2A XX XX | ||||
| LD IX,NN | 14 | 4 | DD 21 XX XX | ||||
| LD IY,(NN) | 20 | 4 | FD 2A XX XX | ||||
| LD IY,NN | 14 | 4 | FD 21 XX XX | ||||
| LD (HL),r | 7 | 1 | ------ | 70+rb | Load (Indirect) | dst=src | |
| LD (HL),N | 10 | 2 | 36 XX | ||||
| LD (BC),A | 7 | 1 | 02 | ||||
| LD (DE),A | 7 | 1 | 12 | ||||
| LD (NN),A | 13 | 3 | 32 XX XX | ||||
| LD (NN),BC | 20 | 4 | ED 43 XX XX | ||||
| LD (NN),DE | 20 | 4 | ED 53 XX XX | ||||
| LD (NN),HL | 16 | 3 | 22 XX XX | ||||
| LD (NN),IX | 20 | 4 | DD 22 XX XX | ||||
| LD (NN),IY | 20 | 4 | FD 22 XX XX | ||||
| LD (NN),SP | 20 | 4 | ED 73 XX XX | ||||
| LD (IX+N),r | 19 | 3 | DD 70+rb XX | ||||
| LD (IX+N),N | 19 | 4 | DD 36 XX XX | ||||
| LD (IY+N),r | 19 | 3 | FD 70+rb XX | ||||
| LD (IY+N),N | 19 | 4 | FD 36 XX XX | ||||
| LDD | 16 | 2 | --0*0- | ED A8 | Load and Decrement | (DE)=(HL),HL=HL-1,# | |
| LDDR | 21/1 | 2 | --000- | ED B8 | Load, Dec., Repeat | LDD till BC=0 | |
| LDI | 16 | 2 | --0*0- | ED A0 | Load and Increment | (DE)=(HL),HL=HL+1,# | |
| LDIR | 21/1 | 2 | --000- | ED B0 | Load, Inc., Repeat | LDI till BC=0 | |
| NEG | 8 | 2 | ***V1* | ED 44 | Negate | A=-A | |
| NOP | 4 | 1 | ------ | 00 | No Operation | ||
| OR r | 4 | 1 | ***P00 | B0+rb | Logical inclusive OR | A=Avs | |
| OR N | 7 | 2 | F6 XX | ||||
| OR (HL) | 7 | 1 | B6 | ||||
| OR (IX+N) | 19 | 3 | DD B6 XX | ||||
| OR (IY+N) | 19 | 3 | FD B6 XX | ||||
| OUT (N),A | 11 | 2 | ------ | D3 XX | Output | (n)=A | |
| OUT (C),0 | 12 | 2 | ------ | ED 71 | Output* | (Unsupported) | |
| OUT (C),A | 12 | 2 | ------ | ED 79 | Output | (C)=r | |
| OUT (C),B | 12 | 2 | ED 41 | ||||
| OUT (C),C | 12 | 2 | ED 49 | ||||
| OUT (C),D | 12 | 2 | ED 51 | ||||
| OUT (C),E | 12 | 2 | ED 59 | ||||
| OUT (C),H | 12 | 2 | ED 61 | ||||
| OUT (C),L | 12 | 2 | ED 69 | ||||
| OUTD | 16 | 2 | ?*??1- | ED AB | Output and Decrement | (C)=(HL),HL=HL-1,B=B-1 | |
| OTDR | 21/1 | 2 | ?1??1- | ED BB | Output, Dec., Repeat | OUTD till B=0 | |
| OUTI | 16 | 2 | ?*??1- | ED A3 | (C)=(HL),HL=HL+1,B=B-1 | ||
| OTIR | 21/1 | 2 | ?1??1- | ED B3 | Output, Inc., Repeat | OUTI till B=0 | |
| POP AF | 10 | 1 | ------ | F1 | Pop | qq=(SP)+ | |
| POP BC | 10 | 1 | C1 | ||||
| POP DE | 10 | 1 | D1 | ||||
| POP HL | 10 | 1 | E1 |
|POP IX |14|2|------|DD E1 |rowspan=2|Pop|rowspan=2|xx=(SP)+
|POP IY |14|2| |FD E1 | | |
|PUSH AF |11|1|------|F5 |rowspan=4|Push|rowspan=4|-(SP)=qq |PUSH BC |11|1| |C5 | | | |PUSH DE |11|1| |D5 | | | |PUSH HL |11|1| |E5 | | |
|PUSH IX |15|2|------|DD E5 |rowspan=2|Push |rowspan=2|-(SP)=xx | |PUSH IY |15|2| |FD E5 | | |
+-------------+----+---+------+------------+---------------------+----------------------+
|RES b,r | 8 | 2 |------|CB 80+8*b+rb|Reset bit |m=m&{~2^b} |
|RES b,(HL) | 15 | 2 |------|CB 86+8*b | | |
|RES b,(IX+N) | 23 | 4 |------|DD CB XX 86+8*b | |
|RES b,(IY+N) | 23 | 4 |------|FD CB XX 86+8*b | |
+-------------+----+---+------+------------+---------------------+----------------------+ |RET | 10 | 1 |------|C9 |Return |PC=(SP)+ | |RET C |11/5| 1 |------|D8 |Conditional Return |If Carry = 1 | |RET NC |11/5| 1 | |D0 | |If Carry = 0 | |RET M |11/5| 1 | |F8 | |If Sign = 1 (negative)| |RET P |11/5| 1 | |F0 | |If Sign = 0 (positive)| |RET Z |11/5| 1 | |C8 | |If Zero = 1 (ans.=0) | |RET NZ |11/5| 1 | |C0 | |If Zero = 0 (non-zero)| |RET PE |11/5| 1 | |E8 | |If Parity = 1 (even) | |RET PO |11/5| 1 | |E0 | |If Parity = 0 (odd) | +-------------+----+---+------+------------+---------------------+----------------------+ |RETI | 14 | 2 |------|ED 4D |Return from Interrupt|PC=(SP)+ | |RETN | 14 | 2 |------|ED 45 |Return from NMI |PC=(SP)+ | +-------------+----+---+------+------------+---------------------+----------------------+ |RLA | 4 | 1 |--0-0*|17 |Rotate Left Acc. |A={CY,A}<- | |RL r | 8 | 2 |**0P0*|CB 10+rb |Rotate Left |m={CY,m}<- | |RL (HL) | 15 | 2 | |CB 16 | | | |RL (IX+N) | 23 | 4 | |DD CB XX 16 | | | |RL (IY+N) | 23 | 4 | |FD CB XX 16 | | | |RLCA | 4 | 1 |--0-0*|07 |Rotate Left Cir. Acc.|A=A<- | |RLC r | 8 | 2 |**0P0*|CB 00+rb |Rotate Left Circular |m=m<- | |RLC (HL) | 15 | 2 | |CB 06 | | | |RLC (IX+N) | 23 | 4 | |DD CB XX 06 | | | |RLC (IY+N) | 23 | 4 | |FD CB XX 06 | | | |RLD | 18 | 2 |**0P0-|ED 6F |Rotate Left 4 bits |{A,(HL)}={A,(HL)}<- ##| |RRA | 4 | 1 |--0-0*|1F |Rotate Right Acc. |A=->{CY,A} | |RR r | 8 | 2 |**0P0*|CB 18+rb |Rotate Right |m=->{CY,m} | |RR (HL) | 15 | 2 | |CB 1E | | | |RR (IX+N) | 23 | 4 | |DD CB XX 1E | | | |RR (IY+N) | 23 | 4 | |FD CB XX 1E | | | |RRCA | 4 | 1 |--0-0*|0F |Rotate Right Cir.Acc.|A=->A | |RRC r | 8 | 2 |**0P0*|CB 08+rb |Rotate Right Circular|m=->m | |RRC (HL) | 15 | 2 | |CB 0E | | | |RRC (IX+N) | 23 | 4 | |DD CB XX 0E | | | |RRC (IY+N) | 23 | 4 | |FD CB XX 0E | | | |RRD | 18 | 2 |**0P0-|ED 67 |Rotate Right 4 bits |{A,(HL)}=->{A,(HL)} ##| +-------------+----+---+------+------------+---------------------+----------------------+ |RST 0 | 11 | 1 |------|C7 |Restart | (p=0H,8H,10H,...,38H)| |RST 08H | 11 | 1 | |CF | | | |RST 10H | 11 | 1 | |D7 | | | |RST 18H | 11 | 1 | |DF | | | |RST 20H | 11 | 1 | |E7 | | | |RST 28H | 11 | 1 | |EF | | | |RST 30H | 11 | 1 | |F7 | | | |RST 38H | 11 | 1 | |FF | | | +-------------+----+---+------+------------+---------------------+----------------------+ |SBC r | 4 | 1 |***V1*|98+rb |Subtract with Carry |A=A-s-CY | |SBC A,N | 7 | 2 | |DE XX | | | |SBC (HL) | 7 | 1 | |9E | | | |SBC A,(IX+N) | 19 | 3 | |DD 9E XX | | | |SBC A,(IY+N) | 19 | 3 | |FD 9E XX | | | |SBC HL,BC | 15 | 2 |**?V1*|ED 42 |Subtract with Carry |HL=HL-ss-CY | |SBC HL,DE | 15 | 2 | |ED 52 | | | |SBC HL,HL | 15 | 2 | |ED 62 | | | |SBC HL,SP | 15 | 2 | |ED 72 | | | +-------------+----+---+------+------------+---------------------+----------------------+ |SCF | 4 | 1 |--0-01|37 |Set Carry Flag |CY=1 | +-------------+----+---+------+------------+---------------------+----------------------+ |SET b,r | 8 | 2 |------|CB C0+8*b+rb|Set bit |m=mv{2^b} | |SET b,(HL) | 15 | 2 | |CB C6+8*b | | | |SET b,(IX+N) | 23 | 4 | |DD CB XX C6+8*b | | |SET b,(IY+N) | 23 | 4 | |FD CB XX C6+8*b | | +-------------+----+---+------+------------+---------------------+----------------------+ |SLA r | 8 | 2 |**0P0*|CB 20+rb |Shift Left Arithmetic|m=m*2 | |SLA (HL) | 15 | 2 | |CB 26 | | | |SLA (IX+N) | 23 | 4 | |DD CB XX 26 | | | |SLA (IY+N) | 23 | 4 | |FD CB XX 26 | | | |SRA r | 8 | 2 |**0P0*|CB 28+rb |Shift Right Arith. |m=m/2 | |SRA (HL) | 15 | 2 | |CB 2E | | | |SRA (IX+N) | 23 | 4 | |DD CB XX 2E | | | |SRA (IY+N) | 23 | 4 | |FD CB XX 2E | | | +-------------+----+---+------+------------+---------------------+----------------------+ |SLL r | 8 | 2 |**0P0*|CB 30+rb |Shift Left Logical* |m={0,m,CY}<- | |SLL (HL) | 15 | 2 | |CB 36 | | (SLL instructions | |SLL (IX+N) | 23 | 4 | |DD CB XX 36 | | are Unsupported) | |SLL (IY+N) | 23 | 4 | |FD CB XX 36 | | | |SRL r | 8 | 2 |**0P0*|CB 38+rb |Shift Right Logical |m=->{0,m,CY} | |SRL (HL) | 15 | 2 | |CB 3E | | | |SRL (IX+N) | 23 | 4 | |DD CB XX 3E | | | |SRL (IY+N) | 23 | 4 | |FD CB XX 3E | | | +-------------+----+---+------+------------+---------------------+----------------------+ |SUB r | 4 | 1 |***V1*|90+rb |Subtract |A=A-s | |SUB N | 7 | 2 | |D6 XX | | | |SUB (HL) | 7 | 1 | |96 | | | |SUB (IX+N) | 19 | 3 | |DD 96 XX | | | |SUB (IY+N) | 19 | 3 | |FD 96 XX | | | +-------------+----+---+------+------------+---------------------+----------------------+ |XOR r | 4 | 1 |***P00|A8+rb |Logical Exclusive OR |A=Axs | |XOR N | 7 | 2 | |EE XX | | | |XOR (HL) | 7 | 1 | |AE | | | |XOR (IX+N) | 19 | 3 | |DD AE XX | | | |XOR (IY+N) | 19 | 3 | |FD AE XX | | |
- -------------+----+---+------+------------+---------------------+----------------------#