HelenOS sources

U_PAGE_UP          59 common/include/str.h #define U_PAGE_UP      0x21de
U_PAGE_UP          59 kernel/generic/common/include/str.h #define U_PAGE_UP      0x21de
U_PAGE_UP          59 uspace/lib/c/common/include/str.h #define U_PAGE_UP      0x21de
U_PAGE_UP          59 uspace/lib/posix/include/common/str.h #define U_PAGE_UP      0x21de
HelenOS homepage, sources at GitHub