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