z80-2, source codes,dokumenty
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Z80 Instruction set summaryTable A-3. Z80 Mnemonics and Operations in Alphabetical Order+------------+--------------------+------+---+---+----------------------+|Mnemonic |Operation |CZPSNH|Len|Tim|Comments |+------------+--------------------+------+---+---+----------------------+|ADC A,r |A:=A+r+CY |**V*0*| 1 | 4 | r - A,B,C,D,E,H,L ||ADC A,(HL) |A:=A+(HL)+CY | | 1 | 7 | ||ADC A,n |A:=A+n+CY | | 2 | 7 | n - byte (0..FF) ||ADC A,(ii+n)|A:=A+(ii+n)+CY | | 3 |19 |ii - IX,IY ||ADC HL,rr |HL:=HL+rr+CY |**V*0x| 2 |15 |rr - BC,DE,HL,SP |+------------+--------------------+------+---+---+----------------------+|ADD A,r |A:=A+r |**V*0*| 1 | 4 | ||ADD A,(HL) |A:=A+(HL) | | 1 | 7 | ||ADD A,n |A:=A+n | | 2 | 7 | ||ADD A,(ii+n)|A:=A+(ii+n) | | 3 |19 | ||ADD HL,rr |HL:=HL+rr |*...0x| 1 |11 | ||ADD IX,ry |IX:=IX+px | | 2 |15 |ry - BC,DE,SP,IY ||ADD IY,rx |IY:=IY+py | | 2 |15 |rx - BC,DE,SP,IX |+------------+--------------------+------+---+---+----------------------+|AND r |A:=A and r |0*P*01| 1 | 4 | ||AND (HL) |A:=A and (HL) | | 1 | 7 | ||AND n |A:=A and n | | 2 | 7 | ||AND (ii+n) |A:=A and (ii+n) | | 3 |19 | |+------------+--------------------+------+---+---+----------------------+|BIT b,r |Z:=not rb |.*xx01| 2 | 8 | b - bit number (0..7)||BIT b,(HL) |Z:=not (HL)b | | 2 |12 |xb - bit b of ||BIT b,(ii+n)|Z:=not (ii+n)b | | 4 |20 | location x |+------------+--------------------+------+---+---+----------------------+|CALL nn |PUSH PC;PC:=nn |......| 3 |17 |nn - word (0..FFFF) ||CALL cc,nn |If cc then CALL nn | | 3 |17 |cc - C,NC,Z,NZ,M,P,PE,|| | else continue | | |10 | PO |+------------+--------------------+------+---+---+----------------------+|CCF |CY:=not CY |*...0x| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|CP r |A-r |**V*1*| 1 | 4 | ||CP (HL) |A-(HL) | | 1 | 7 | ||CP n |A-n | | 2 | 7 | ||CP (ii+n) |A-(ii+n) | | 3 |19 | |+------------+--------------------+------+---+---+----------------------+|CPD |A-(HL);dec HL;dec BC|.***1*| 2 |16 |PV=0 if BC=0,else PV=1|+------------+--------------------+------+---+---+----------------------+|CPDR |Repeat CPD |.***1*| 2 |21 | || | until Z=1 or BC=0 | | |16 | |+------------+--------------------+------+---+---+----------------------+|CPI |A-(HL);inc HL;dec BC|.***1*| 2 |16 |PV=0 if BC=0,else PV=1|+------------+--------------------+------+---+---+----------------------+|CPIR |Repeat CPI |.***1*| 2 |21 | || | until Z=1 or BC=0 | | |16 | |+------------+--------------------+------+---+---+----------------------+|CPL |A:=A xor 255 |....11| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|DAA |Decimal adjust Acc. |**P*.*| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|DEC r |r:=r-1 |.*V*1*| 1 | 4 | ||DEC (HL) |(HL):=(HL)-1 | | 1 |11 | ||DEC (ii+n) |(ii+n):=(ii+n)-1 | | 3 |23 | ||DEC rr |rr:=rr-1 |......| 1 | 6 | ||DEC ii |ii:=ii-1 | | 2 |10 | |+------------+--------------------+------+---+---+----------------------+|DI |IFF:=0 |......| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|DJNZ e |dec B;if B 0 JR e |......| 2 |13 | e - relative address || | if B=0 continue| | | 8 | |+------------+--------------------+------+---+---+----------------------+|EI |IFF:=1 |......| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|EX AF,AF' |AF<->AF' |......| 1 | 4 | ||EX DE,HL |DE<->HL | | 1 | 4 | ||EX (SP),HL |(SP)<->HL | | 1 | 4 | ||EX (SP),ii |(SP)<->ii | | 2 |23 | |+------------+--------------------+------+---+---+----------------------+|EXX |BC<->BC';DE<->DE'; |......| 1 | 4 | || |HL<->HL' | | | | |+------------+--------------------+------+---+---+----------------------+|HALT |Halt CPU |......| 1 | 4 | |+------------+--------------------+------+---+---+----------------------+|IM 1 |Interrupt mode 1 |......| 2 | 8 | ||IM 2 |Interrupt mode 2 | | | | ||IM 3 |Interrupt mode 3 | | | | |+------------+--------------------+------+---+---+----------------------+|IN A,(n) |A:=port(n) |......| 2 |11 | ||IN r,(C) |r:=port(C) |.*P*0*| 2 |12 | ||IN ?,(C) |only set flags as |.*P*0*| 2 |12 |can't be entered as a || | as IN r,(C) does | | | |command;code is ED 70 |+------------+--------------------+------+---+---+----------------------+|INC r |r:=r+1 |.*V*0*| 1 | 4 | ||INC (HL) |(HL):=(HL)+1 | | 1 |11 | ||INC (ii+n) |(ii+n):=(ii+n)+1 | | 3 |23 | ||INC rr |rr:=rr+1 |......| 1 | 6 | ||INC ii |ii:=ii+1 | | 2 |10 | |+------------+--------------------+------+---+---+----------------------+|IND |(HL):=port(C); |x*xx1x| 2 |16 |Z=1 if B=0,else Z=0 || |dec HL;dec B | | | | |+------------+--------------------+------+---+---+----------------------+|INDR |Repeat IND |x1xx1x| 2 |21 | || | until B=0 | | |16 | |+------------+--------------------+------+---+---+----------------------+|INI |(HL):=port(C); |x*xx1x| 2 |16 |Z=1 if B=0,else Z=0 || |inc HL;dec B | | | | |+------------+--------------------+------+---+---+----------------------+|INIR |Repeat INI |x1xx1x| 2 |21 | || | until B=0 | | |16 | |+------------+--------------------+------+---+---+----------------------+|JP nn |PC:=nn |......| 3 |10 | ||JP cc,nn |If cc then JP nn |......| 3 |10 | ||JP (HL) |PC:=HL | | 1 | 4 | ||JP (ii) |PC:=ii | | 2 | 8 | |+------------+--------------------+------+---+---+----------------------+|JR e |PC:=PC+e |......| 2 |12 | ||JR cond,e |If cond then JR e | | 2 |12 |cond - C,NC,Z,NZ || | else NOP | | | 7 | |+------------+--------------------+------+---+---+----------------------+|LD r,r |r:=r |......| 1 | 4 | ||LD r,(HL) |r:=(HL) | | 1 | 7 | ||LD r,n |r:=n | | 2 | 7 | ||LD r,(ii+n) |r:=(ii+n) | | 3 |19 | ||LD (HL),r |(HL):=r | | 1 | 7 | ||LD (ii+n),r |(ii+n):=r | | 3 |19 | ||LD (HL),n |(HL):=n | | 2 |10 | ||LD (ii+n),n |(ii+n):=n | | 4 |19 | ||LD A,(BC) |A:=(BC) | | 1 | 7 | ||LD A,(DE) |A:=(DE) | | 1 | 7 | ||LD A,(nn) |A:=(nn) | | 3 |13 | ||LD (BC),A |(BC):=A | | 1 | 7 | ||LD (DE),A |(DE):=A | | 1 | 7 | ||LD (nn),A |(nn):=A | | 3 |13 | ||LD A,I |A:=I |.***00| 2 | 9 |PV=IFF ||LD A,R |A:=R | | 2 | 9 |PV=IFF ||LD I,A |I:=A |......| 2 | 9 | ||LD R,A |R:=A | | 2 | 9 | ||LD rr,nn |rr:=nn | | 3 |10 | ||LD ii,nn |ii:=nn | | 4 |14 | ||LD HL,(nn) |HL:=(nn) | | 3 |16 | |...
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