Commit Graph

5 Commits

Author SHA1 Message Date
oliverschmidt
daf29d0a87 Supply prototype even if there's no implementation (yet) to keep compiler happy. 2009-09-13 19:07:34 +00:00
oliverschmidt
852d2c0283 Introduced very lightweight pfs implementation based on Apple ProDOS.
ProDOS requires for each opened file a user-supplied page-aligned 1024 byte i/o buffer. This makes the generic POSIX file i/o library contained in the cc65 C-library quite heavyweight.

In contrast the lightweight pfs implementation uses the uIP packet buffer as ProDOS i/o buffer. Therefore:
- Only one file may be open at any time.
- That file may not be open while the uIP packet buffer is used by uIP. The open()/read()/close() sequence should be completed before Contiki event scheduling or inside handling a single Contiki event.
- The uIP packet buffer must be large enough to hold the ProDOS I/O buffer. Depending on the position of the uIP buffer in memory this means between 1024 and 1024 + 256 bytes. Therefore in an Ethernet environment setting the MTU_SIZE to at least 1266 is safe (So the default of 1500 is just fine).
2008-01-01 18:49:50 +00:00
oliverschmidt
fe023c6d3e Introduced very lightweight log implementation not depending on any file I/O library. 2007-12-21 00:43:57 +00:00
oliverschmidt
8644822a34 Soe we're finally back at reducing the memory footprint be avoiding to pull in large C-library enitities. 2007-12-16 13:08:09 +00:00
oliverschmidt
70321f690f Made error_exit() implementation target-specific. 2007-12-08 22:16:43 +00:00