Zilog Z80180 Manual de usuario Pagina 251

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Z8018x
Family MPU User Manual
UM005003-0703
235
Special Control Instructions
Table 47. Special Control Instructions
Operation
Name Mnemonics Op Code
Addressing
Bytes States Operation
Flags
7642 10
Immed Ext Ind Reg Regi Imp Rel S Z H P/V N C
Special
Function
DAA 00 100 111 S/D 1 4 Decimal
Adjust
Accumulator
P ·
Carry
Control
CCF 00 111 111 1 3 C
®C ··R · R
SCF 00 110 111 1 3 1 ®C ··R · RS
CPU
Control
DI 11 110 011 1 3 0®IEF1,0®IEF2 (7) ···· ··
EI 11 111 011 1 3 1®IEF1,1®IEF2 (7) ···· ··
HALT 01 11 0 110 1 3 C PU halted ···· ··
IM0 11 101 101 2 6 Interrupt ···· ··
01 000 110 Mode 0
IM1 11 101 101 2 6 Interrupt ···· ··
01 010 110 Mode 1
IM2 11 101 101 2 6 Interrupt ···· ··
01 011 110 Mode 2
NOP 00 000 000 1 3 No operation ···· ··
SLP** 11 101 101 2 8 Sleep ···· ··
01 110 110
7) Interrupts are not sampled at the end of DI or EI.
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