diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/crypto/curve25519-x86_64.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/crypto/curve25519-x86_64.h b/src/crypto/curve25519-x86_64.h index a4c958a..fba4f00 100644 --- a/src/crypto/curve25519-x86_64.h +++ b/src/crypto/curve25519-x86_64.h @@ -1493,9 +1493,9 @@ static __always_inline void mul_a24_eltfp25519_1w(u64 *const c, const u64 *const /**************************/ "adcq $0, %%rcx ;" "movl $38, %%edx ;" /* 2*c = 38 = 2^256 mod 2^255-19*/ - "mulx %%rcx, %%rax, %%rcx ;" - "addq %%rax, %%r8 ;" - "adcq %%rcx, %%r9 ;" + "imul %%rdx, %%rcx ;" + "addq %%rcx, %%r8 ;" + "adcq $0, %%r9 ;" "movq %%r9, 8(%0) ;" "adcq $0, %%r10 ;" "movq %%r10, 16(%0) ;" |