HelenOS sources

cp437_decode       72 uspace/app/tester/print/print4.c 			TPRINTF("%lc", cp437_decode((group << 5) + index));
cp437_decode       43 uspace/lib/codepage/include/codepage/cp437.h extern char32_t cp437_decode(uint8_t);
cp437_decode       45 uspace/lib/codepage/test/cp437.c 		c = cp437_decode(code);
HelenOS homepage, sources at GitHub