Hi all,

  I see some ports have so-called SUB_PORT. Take hc08 for example, it
has sub-port hc08 and s08. What's the relationship between them? Maybe
one's instruction set is a subset of another?
 
  And I have another question about the commandline options, -m and -p.
It seems I can only use "-m" to switch sub-port, then what "-p" option
means/does? Because I thought that maybe I can switch sub-port like
this,

  sdcc -mhc08 -ps08

but it turns out that I should do this,

  sdcc -ms08

So I want to know what "-p" option's role here. Does it affect any
compiler behavior or codegen?

  Thanks.

Regards,
chenwj

-- 
Wei-Ren Chen (陳韋任)
Homepage: http://people.cs.nctu.edu.tw/~chenwj

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