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ZBasic System Library 81 ZX Microcontroller Family EnableInt Type Subroutine Invocation EnableInt(flag) Parameter Method Type Description flag ByVal Byte The value controlling re-enabling of interrupts. Discussion This routine conditionally re-enables interrupts depending on the value of the flag parameter. If the most significant bit of the flag parameter is a 1, interrupts will be re-enabled. Otherwise, the state of the interrupt enabling will not change. Passing the value returned from DisableInt() implements proper nesting of DisableInt() and EnableInt() calls so they are most often used in pairs as shown in the example below. Note The Atomic block construct (described in the ZBasic Language Reference Manual) is the preferred method for implementing atomic access. Example Dim iflag as Byte iflag = DisableInt() ' place code here that must not be interrupted Call EnableInt(iflag) See Also DisableInt, UpdateRTC, Yield