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| author | Kenny Root <kroot@google.com> | 2015-10-02 16:09:15 -0700 |
|---|---|---|
| committer | Kenny Root <kroot@google.com> | 2015-10-02 16:09:49 -0700 |
| commit | fe7305364c3369f9222a61646c5c9842eae9bceb (patch) | |
| tree | 360ada970b7bb1046ae069d253ba24d9622eb3ad /win-x86_64/crypto/rand/rdrand-x86_64.asm | |
| parent | 691ef9d0ff0ece39ffd6a58960a7cd195ef584ae (diff) | |
| parent | b452bce3bf2034466cee6206ebf3994409468ee4 (diff) | |
| download | external_boringssl-fe7305364c3369f9222a61646c5c9842eae9bceb.zip external_boringssl-fe7305364c3369f9222a61646c5c9842eae9bceb.tar.gz external_boringssl-fe7305364c3369f9222a61646c5c9842eae9bceb.tar.bz2 | |
Merge mnc-dr-dev-plus-aosp into mnc-ub-dev
This pulls in the latest version of BoringSSL.
Change-Id: I0ab5c73d60f41a696c9a828fac87670aaca10dec
Diffstat (limited to 'win-x86_64/crypto/rand/rdrand-x86_64.asm')
| -rw-r--r-- | win-x86_64/crypto/rand/rdrand-x86_64.asm | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/win-x86_64/crypto/rand/rdrand-x86_64.asm b/win-x86_64/crypto/rand/rdrand-x86_64.asm index a63ea69..4c03791 100644 --- a/win-x86_64/crypto/rand/rdrand-x86_64.asm +++ b/win-x86_64/crypto/rand/rdrand-x86_64.asm @@ -5,6 +5,9 @@ default rel section .text code align=64 + + + global CRYPTO_rdrand ALIGN 16 @@ -16,7 +19,52 @@ $L$SEH_begin_CRYPTO_rdrand: mov rdi,rcx -DB 0x48,0x0f,0xc7,0xf0 + xor rax,rax + + +DB 0x48,0x0f,0xc7,0xf1 + + adc rax,rax + mov QWORD[rdi],rcx + mov rdi,QWORD[8+rsp] ;WIN64 epilogue + mov rsi,QWORD[16+rsp] + DB 0F3h,0C3h ;repret + + + + + +global CRYPTO_rdrand_multiple8_buf + +ALIGN 16 +CRYPTO_rdrand_multiple8_buf: + mov QWORD[8+rsp],rdi ;WIN64 prologue + mov QWORD[16+rsp],rsi + mov rax,rsp +$L$SEH_begin_CRYPTO_rdrand_multiple8_buf: + mov rdi,rcx + mov rsi,rdx + + + test rsi,rsi + jz NEAR $L$out + mov rdx,8 +$L$loop: + + +DB 0x48,0x0f,0xc7,0xf1 + jnc NEAR $L$err + mov QWORD[rdi],rcx + add rdi,rdx + sub rsi,rdx + jnz NEAR $L$loop +$L$out: + mov rax,1 + mov rdi,QWORD[8+rsp] ;WIN64 epilogue + mov rsi,QWORD[16+rsp] + DB 0F3h,0C3h ;repret +$L$err: + xor rax,rax mov rdi,QWORD[8+rsp] ;WIN64 epilogue mov rsi,QWORD[16+rsp] DB 0F3h,0C3h ;repret |