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Individual Instruction Descriptions
4-109Assembly Language Instructions
4.14.25 IRET Return From Interrupt
Syntax
[label] name Clock, clk Word, w With RPT, clk Class
IRET 2 1 N/R 5
Execution PC ⇐ TOS
R7 ⇐ R7 – 2
TOS ⇐ *R7
Flags Affected None
Opcode
Instructions 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IRET 1 1 0 1 1 1 1 0 1 0 1 1 1 1 1 1 0
See Also RET, CALL, Ccc, INTE, INTD
Description Return from interrupt. Pop top of stack to program counter.
Example 4.1 IRET
Return from interrupt service routine. If used in a called subroutine, return from subroutine.