| // This file was extracted from the TCG Published |
| // Trusted Platform Module Library |
| // Part 4: Supporting Routines |
| // Family "2.0" |
| // Level 00 Revision 01.16 |
| // October 30, 2014 |
| |
| #ifndef _SWAP_H |
| #define _SWAP_H |
| #include "Implementation.h" |
| #if NO_AUTO_ALIGN == YES || LITTLE_ENDIAN_TPM == YES |
| // |
| // The aggregation macros for machines that do not allow unaligned access or for little-endian machines. |
| // Aggregate bytes into an UINT |
| // |
| #define BYTE_ARRAY_TO_UINT8(b) (UINT8)((b)[0]) |
| #define BYTE_ARRAY_TO_UINT16(b) (UINT16)( ((b)[0] << 8) \ |
| + (b)[1]) |
| #define BYTE_ARRAY_TO_UINT32(b) (UINT32)( ((b)[0] << 24) \ |
| + ((b)[1] << 16) \ |
| + ((b)[2] << 8 ) \ |
| + (b)[3]) |
| #define BYTE_ARRAY_TO_UINT64(b) (UINT64)( ((UINT64)(b)[0] << 56) \ |
| + ((UINT64)(b)[1] << 48) \ |
| + ((UINT64)(b)[2] << 40) \ |
| + ((UINT64)(b)[3] << 32) \ |
| + ((UINT64)(b)[4] << 24) \ |
| + ((UINT64)(b)[5] << 16) \ |
| + ((UINT64)(b)[6] << 8) \ |
| + (UINT64)(b)[7]) |
| // |
| // Disaggregate a UINT into a byte array |
| // |
| #define UINT8_TO_BYTE_ARRAY(i, b) {(b)[0] = (BYTE)(i);} |
| #define UINT16_TO_BYTE_ARRAY(i, b) {(b)[0] = (BYTE)((i) >> 8); \ |
| (b)[1] = (BYTE) (i);} |
| #define UINT32_TO_BYTE_ARRAY(i, b) {(b)[0] = (BYTE)((i) >> 24); \ |
| (b)[1] = (BYTE)((i) >> 16); \ |
| (b)[2] = (BYTE)((i) >> 8); \ |
| (b)[3] = (BYTE) (i);} |
| #define UINT64_TO_BYTE_ARRAY(i, b) {(b)[0] = (BYTE)((i) >> 56); \ |
| (b)[1] = (BYTE)((i) >> 48); \ |
| (b)[2] = (BYTE)((i) >> 40); \ |
| (b)[3] = (BYTE)((i) >> 32); \ |
| (b)[4] = (BYTE)((i) >> 24); \ |
| (b)[5] = (BYTE)((i) >> 16); \ |
| (b)[6] = (BYTE)((i) >> 8); \ |
| (b)[7] = (BYTE) (i);} |
| #else |
| // |
| // the big-endian macros for machines that allow unaligned memory access Aggregate a byte array into a |
| // UINT |
| // |
| #define BYTE_ARRAY_TO_UINT8(b) *((UINT8 *)(b)) |
| #define BYTE_ARRAY_TO_UINT16(b) *((UINT16 *)(b)) |
| #define BYTE_ARRAY_TO_UINT32(b) *((UINT32 *)(b)) |
| #define BYTE_ARRAY_TO_UINT64(b) *((UINT64 *)(b)) |
| // |
| // Disaggregate a UINT into a byte array |
| #define UINT8_TO_BYTE_ARRAY(i, b) (*((UINT8 *)(b)) = (i)) |
| #define UINT16_TO_BYTE_ARRAY(i, b) (*((UINT16 *)(b)) = (i)) |
| #define UINT32_TO_BYTE_ARRAY(i, b) (*((UINT32 *)(b)) = (i)) |
| #define UINT64_TO_BYTE_ARRAY(i, b) (*((UINT64 *)(b)) = (i)) |
| #endif // NO_AUTO_ALIGN == YES |
| #endif // _SWAP_H |
