__________________________________________________________________________________________________________________________ Mnemonic Symbolic Flags (bit 7-0) Instruction Number Number of Number of Comments operation S Z . H . V N C opcode of bytes M cycles T states __________________________________________________________________________________________________________________________
EX DE,HL DE <-> HL * * X * X * * * 11 101 011 (EBh) 1 1 4 EX AF,AF' AF <-> AF' * * X * X * * * 00 001 000 (08h) 1 1 4 EXX BC <-> BC' * * X * X * * * 11 011 001 (D9h) 1 1 4 DE <-> DE' HL <-> HL'
EX (SP),HL L <-> (SP) * * X * X * * * 11 100 011 (E3h) 1 5 19 H <-> (SP+1) EX (SP),IX IXL <-> (SP) * * X * X * * * 11 011 101 (DDh) 2 6 23 EX (SP),IY IXH <-> (SP+1) * * X * X * * * 11 111 101 (FDh) 2 6 23 11 100 011 (E3h)
LDI (DE) <- (HL) * * X 0 X ? 0 * 11 101 101 (EDh) 2 4 16 BC <- BC-1 (1) 10 100 000 (A0h) DE <- DE+1 HL <- HL+1
LDIR (DE) <- (HL) * * X 0 X 0 0 * 11 101 101 (EDh) 2 5 21 if BC<>0 BC <- BC-1 10 110 000 (B0h) 2 4 16 if BC=0 DE <- DE+1 HL <- HL+1 Repeat until BC=0
LDD (DE) <- (HL) * * X 0 X ? 0 * 11 101 101 (EDh) 2 4 16 BC <- BC-1 (1) 10 101 000 (A8h) DE <- DE-1 HL <- HL-1
LDDR (DE) <- (HL) * * X 0 X 0 0 * 11 101 101 (EDh) 2 5 21 if BC<>0 BC <- BC-1 10 111 000 (B8h) 2 4 16 if BC=0 DE <- DE-1 HL <- HL-1 Repeat until BC=0
CPI A = (HL) ? ? X ? X ? 1 * 11 101 101 (EDh) 2 4 16 BC <- BC-1 (2) (1) 10 100 001 (A1h) HL <- HL+1
CPIR A = (HL) ? ? X ? X ? 1 * 11 101 101 (EDh) 2 5 21 if BC<>0 and A<>(HL) BC <- BC-1 (2) (1) 10 110 001 (B1h) 2 4 16 if BC=0 or A=(HL) HL <- HL+1 Repeat until BC=0 or A=(HL)
CPD A = (HL) ? ? X ? X ? 1 * 11 101 101 (EDh) 2 4 16 BC <- BC-1 (2) (1) 10 101 001 (A9h) HL <- HL-1
CPDR A = (HL) ? ? X ? X ? 1 * 11 101 101 (EDh) 2 5 21 if BC<>0 and A<>(HL) BC <- BC-1 (2) (1) 10 111 001 (B9h) 2 4 16 if BC=0 or A=(HL) HL <- HL-1 Repeat until BC=0 or A=(HL)
(1) P/V = 0, if result of BC-1 = 0, otherwise P/V = 1 (2) Fz = 1, if A = (HL), otherwise Fz = 0 |