The Factor 2 entry of an EXSR operation or the Result Field entry of a CASxx operation specifies the name of the subroutine in which the operation is performed. A subroutine cannot be called from an operation within the same subroutine. Specification is ignored.
Change the call target of the operation or remove the operation. CABxx, GOTO, and TAG operations may be used to branch to a tag within the same subroutine. Recompile.
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