Allen Briggs wrote: > #define BEBOX_BUS_SPACE_IO 0x80000000 /* i/o space */ > #define BEBOX_BUS_SPACE_MEM 0xC0000000 /* mem space */ Those values are probably taken directly from the one newsletter where Be told us a bit about the BeBox internals. (see http://www-classic.be.com/aboutbe/bewnewsletter/Issue27.html). ciao Klaus