From dd2de65b85cdc7a7744145214ecf8ea5ebe46c25 Mon Sep 17 00:00:00 2001 From: rimio Date: Thu, 1 Mar 2018 21:24:07 +0200 Subject: Added endianness conversion; Added first 10 answer files; fixed test case; fixed small issue in describe tool --- src/ecbor.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) (limited to 'src/ecbor.c') diff --git a/src/ecbor.c b/src/ecbor.c index 9e8404f..dbbed96 100644 --- a/src/ecbor.c +++ b/src/ecbor.c @@ -6,6 +6,57 @@ */ #include "ecbor.h" +#include "ecbor_internal.h" + +uint16_t +ecbor_uint16_from_big_endian (uint16_t value) +{ +#if __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) + return value; +#elif __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) + /* TODO: ARM optimization */ + return ((value << 8) & 0xff00) + | ((value >> 8) & 0x00ff); +#else + #error "Endianness not supported!" +#endif +} + +uint32_t +ecbor_uint32_from_big_endian (uint32_t value) +{ +#if __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) + return value; +#elif __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) + /* TODO: ARM optimization */ + return ((value << 8) & 0x00ff0000) + | ((value >> 8) & 0x0000ff00) + | ((value << 24) & 0xff000000) + | ((value >> 24) & 0x000000ff); +#else + #error "Endianness not supported!" +#endif +} + +uint64_t +ecbor_uint64_from_big_endian (uint64_t value) +{ +#if __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) + return value; +#elif __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) + /* TODO: ARM optimization */ + return ((value << 8) & 0x000000ff00000000) + | ((value >> 8) & 0x00000000ff000000) + | ((value << 24) & 0x0000ff0000000000) + | ((value >> 24) & 0x0000000000ff0000) + | ((value << 40) & 0x00ff000000000000) + | ((value >> 40) & 0x000000000000ff00) + | ((value << 56) & 0xff00000000000000) + | ((value >> 56) & 0x00000000000000ff); +#else + #error "Endianness not supported!" +#endif +} extern ecbor_major_type_t ecbor_get_type (ecbor_item_t *item) -- cgit v1.2.3