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36 lines
788 B
Common Lisp
36 lines
788 B
Common Lisp
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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#include "inc_vendor.h"
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#include "inc_types.h"
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#include "inc_platform.h"
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#include "inc_common.h"
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#include "inc_truecrypt_keyfile.h"
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DECLSPEC u32 u8add (const u32 a, const u32 b)
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{
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const u32 a1 = (a >> 0) & 0xff;
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const u32 a2 = (a >> 8) & 0xff;
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const u32 a3 = (a >> 16) & 0xff;
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const u32 a4 = (a >> 24) & 0xff;
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const u32 b1 = (b >> 0) & 0xff;
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const u32 b2 = (b >> 8) & 0xff;
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const u32 b3 = (b >> 16) & 0xff;
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const u32 b4 = (b >> 24) & 0xff;
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const u32 r1 = (a1 + b1) & 0xff;
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const u32 r2 = (a2 + b2) & 0xff;
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const u32 r3 = (a3 + b3) & 0xff;
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const u32 r4 = (a4 + b4) & 0xff;
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const u32 r = r1 << 0
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| r2 << 8
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| r3 << 16
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| r4 << 24;
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return r;
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}
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