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IM 0

Set interrupt mode 0 condition.
Function: Internal interrupt control.
1110 1101
byte 1: ED
0100 0110
byte 2: 46
Description: Sets interrupt mode 0. In this condition, the interrupting device may insert one instruction onto the data bus for execution, the first byte of which must occur during the interrupt acknowledge cycle.
Timing: 2 M cycles; 8 T states: 4 usec @ 2 MHz
Addressing Mode: implicit
(no effect)