Справочник Пользователя для IBM PD78P083(A)

The interrupt request reserve timing is shown in Figure 12-15.

Remarks 1. Instruction N:  Instruction that holds interrupts requests

2. Instruction M:  Instructions other than instruction N

3. The operation of 

××

IF (interrupt request) is not affected by 

××

PR (priority level) values.

CPU processing

× ×

 IF

Instruction N

Instruction M

Save PSW and PC,
Jump to interrupt service

Interrupt service
program