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block-sha1: minor fixups

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Bert Wesarg noticed non-x86 version of SHA_ROT() had a typo.
Also spell in-line assembly as __asm__(), otherwise I seem to get
error: implicit declaration of function 'asm' from my compiler.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2009-08-06 13:52:58 -07:00
parent b8e48a89b8
commit fd536d3439
1 changed files with 2 additions and 2 deletions
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block-sha1/sha1.c
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@ -82,13 +82,13 @@ void blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx)
#if defined(__i386__) || defined(__x86_64__)
#define SHA_ASM(op, x, n) ({ unsigned int __res; asm(op " %1,%0":"=r" (__res):"i" (n), "0" (x)); __res; })
#define SHA_ASM(op, x, n) ({ unsigned int __res; __asm__(op " %1,%0":"=r" (__res):"i" (n), "0" (x)); __res; })
#define SHA_ROL(x,n) SHA_ASM("rol", x, n)
#define SHA_ROR(x,n) SHA_ASM("ror", x, n)
#else
#define SHA_ROT(X,n) (((X) << (l)) | ((X) >> (r)))
#define SHA_ROT(X,l,r) (((X) << (l)) | ((X) >> (r)))
#define SHA_ROL(X,n) SHA_ROT(X,n,32-(n))
#define SHA_ROR(X,n) SHA_ROT(X,32-(n),n)