NAME
    PopChunk -- Pop top context node off context stack.
SYNOPSIS
    error = PopChunk (iff)
     d0               a0
    LONG             error;
    struct IFFHandle *iff;
FUNCTION
    Pops top context chunk and frees all associated local context items.
    The function is normally called only for writing files and signals
    the end of a chunk.
INPUTS
    iff     - pointer to IFFHandle struct.
RESULT
    error   - 0 if successful or an IFFERR_#? error code if not
              successful.
EXAMPLE
NOTES
BUGS
SEE ALSO
    PushChunk()