1The handling of varargs is platform-dependent.  Assar Westerlund
2stared at the problem for a while and deduces the following table:
3
4vers / compiler         cc              gcc
5----------------------------------------------------------------------
61.3                     a0, offset      __base, __offset
72.0                     _a0, _offset    __base, __offset
8
9The current code should handle both cc and gcc versions, provided
10you configure for the correct compiler.
11