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doc tweak, adding qualified name example for goto (#116)

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OODLER 2023-12-20 16:51:46 -06:00 committed by GitHub
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10
docs/source/syntaxreference.rst
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@ -861,13 +861,15 @@ Unconditional jump: goto
^^^^^^^^^^^^^^^^^^^^^^^^
To jump to another part of the program, you use a ``goto`` statement with an address or the name
of a label or subroutine::
of a label or subroutine. Referencing labels or subroutines outside of their defined scope requires
using qualified "dotted names"::
goto $c000 ; address
goto name ; label or subroutine
goto $c000 ; address
goto name ; label or subroutine
goto main.mysub.name ; qualified dotted name; see, "Blocks, Scopes, and accessing Symbols"
uword address = $4000
goto address ; jump via address variable
goto address ; jump via address variable
Notice that this is a valid way to end a subroutine (you can either ``return`` from it, or jump
to another piece of code that eventually returns).