Im 1 – Zilog Z08470 User Manual
Page 195
UM008007-0715
Z80 Instruction Description
Z80 CPU
User Manual
183
IM 1
Operation
Set Interrupt Mode 1
Op Code
IM
Operand
1
Description
The IM 1 instruction sets Interrupt Mode 1. In this mode, the processor responds to an
interrupt by executing a restart at address
0038h
.
Condition Bits Affected
None.
M Cycles
T States
4 MHz E.T.
2
8 (4, 4)
2.00
1
1
0
0
1
1
1
1
ED
0
1
1
1
0
1
0
0
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