diff --git a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_linux.inc b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_linux.inc
new file mode 100644
index 0000000000000000000000000000000000000000..79adab671e1bbb0f0be1178764282817267049fb
--- /dev/null
+++ b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_linux.inc
@@ -0,0 +1,410 @@
+ mov rax, rsp
+ push rbx
+ push rbp
+ push rsi
+ push rdi
+ push r12
+ push r13
+ push r14
+ push r15
+ sub rsp, 184
+
+ stmxcsr DWORD PTR [rsp+272]
+ mov DWORD PTR [rsp+276], 24448
+ ldmxcsr DWORD PTR [rsp+276]
+
+ mov r13, QWORD PTR [rcx+224]
+ mov r9, rdx
+ mov r10, QWORD PTR [rcx+32]
+ mov r8, rcx
+ xor r10, QWORD PTR [rcx]
+ mov r14d, 524288
+ mov r11, QWORD PTR [rcx+40]
+ xor r11, QWORD PTR [rcx+8]
+ mov rsi, QWORD PTR [rdx+224]
+ mov rdx, QWORD PTR [rcx+56]
+ xor rdx, QWORD PTR [rcx+24]
+ mov rdi, QWORD PTR [r9+32]
+ xor rdi, QWORD PTR [r9]
+ mov rbp, QWORD PTR [r9+40]
+ xor rbp, QWORD PTR [r9+8]
+ movq xmm0, rdx
+ movaps XMMWORD PTR [rax-88], xmm6
+ movaps XMMWORD PTR [rax-104], xmm7
+ movaps XMMWORD PTR [rax-120], xmm8
+ movaps XMMWORD PTR [rsp+112], xmm9
+ movaps XMMWORD PTR [rsp+96], xmm10
+ movaps XMMWORD PTR [rsp+80], xmm11
+ movaps XMMWORD PTR [rsp+64], xmm12
+ movaps XMMWORD PTR [rsp+48], xmm13
+ movaps XMMWORD PTR [rsp+32], xmm14
+ movaps XMMWORD PTR [rsp+16], xmm15
+ mov rdx, r10
+ movq xmm4, QWORD PTR [r8+96]
+ and edx, 2097136
+ mov rax, QWORD PTR [rcx+48]
+ xorps xmm13, xmm13
+ xor rax, QWORD PTR [rcx+16]
+ mov rcx, QWORD PTR [rcx+88]
+ xor rcx, QWORD PTR [r8+72]
+ movq xmm5, QWORD PTR [r8+104]
+ movq xmm7, rax
+
+ mov eax, 1
+ shl rax, 52
+ movq xmm14, rax
+ punpcklqdq xmm14, xmm14
+
+ mov eax, 1023
+ shl rax, 52
+ movq xmm12, rax
+ punpcklqdq xmm12, xmm12
+
+ mov rax, QWORD PTR [r8+80]
+ xor rax, QWORD PTR [r8+64]
+ punpcklqdq xmm7, xmm0
+ movq xmm0, rcx
+ mov rcx, QWORD PTR [r9+56]
+ xor rcx, QWORD PTR [r9+24]
+ movq xmm3, rax
+ mov rax, QWORD PTR [r9+48]
+ xor rax, QWORD PTR [r9+16]
+ punpcklqdq xmm3, xmm0
+ movq xmm0, rcx
+ mov QWORD PTR [rsp], r13
+ mov rcx, QWORD PTR [r9+88]
+ xor rcx, QWORD PTR [r9+72]
+ movq xmm6, rax
+ mov rax, QWORD PTR [r9+80]
+ xor rax, QWORD PTR [r9+64]
+ punpcklqdq xmm6, xmm0
+ movq xmm0, rcx
+ mov QWORD PTR [rsp+256], r10
+ mov rcx, rdi
+ mov QWORD PTR [rsp+264], r11
+ movq xmm8, rax
+ and ecx, 2097136
+ punpcklqdq xmm8, xmm0
+ movq xmm0, QWORD PTR [r9+96]
+ punpcklqdq xmm4, xmm0
+ movq xmm0, QWORD PTR [r9+104]
+ lea r8, QWORD PTR [rcx+rsi]
+ movdqu xmm11, XMMWORD PTR [r8]
+ punpcklqdq xmm5, xmm0
+ lea r9, QWORD PTR [rdx+r13]
+ movdqu xmm15, XMMWORD PTR [r9]
+
+ALIGN 16
+main_loop_double_sandybridge:
+ movdqu xmm9, xmm15
+ mov eax, edx
+ mov ebx, edx
+ xor eax, 16
+ xor ebx, 32
+ xor edx, 48
+
+ movq xmm0, r11
+ movq xmm2, r10
+ punpcklqdq xmm2, xmm0
+ aesenc xmm9, xmm2
+
+ movdqu xmm0, XMMWORD PTR [rax+r13]
+ movdqu xmm1, XMMWORD PTR [rbx+r13]
+ paddq xmm0, xmm7
+ paddq xmm1, xmm2
+ movdqu XMMWORD PTR [rbx+r13], xmm0
+ movdqu xmm0, XMMWORD PTR [rdx+r13]
+ movdqu XMMWORD PTR [rdx+r13], xmm1
+ paddq xmm0, xmm3
+ movdqu XMMWORD PTR [rax+r13], xmm0
+
+ movq r11, xmm9
+ mov edx, r11d
+ and edx, 2097136
+ movdqa xmm0, xmm9
+ pxor xmm0, xmm7
+ movdqu XMMWORD PTR [r9], xmm0
+
+ lea rbx, QWORD PTR [rdx+r13]
+ mov r10, QWORD PTR [rdx+r13]
+
+ movdqu xmm10, xmm11
+ movq xmm0, rbp
+ movq xmm11, rdi
+ punpcklqdq xmm11, xmm0
+ aesenc xmm10, xmm11
+
+ mov eax, ecx
+ mov r12d, ecx
+ xor eax, 16
+ xor r12d, 32
+ xor ecx, 48
+
+ movdqu xmm0, XMMWORD PTR [rax+rsi]
+ paddq xmm0, xmm6
+ movdqu xmm1, XMMWORD PTR [r12+rsi]
+ movdqu XMMWORD PTR [r12+rsi], xmm0
+ paddq xmm1, xmm11
+ movdqu xmm0, XMMWORD PTR [rcx+rsi]
+ movdqu XMMWORD PTR [rcx+rsi], xmm1
+ paddq xmm0, xmm8
+ movdqu XMMWORD PTR [rax+rsi], xmm0
+
+ movq rcx, xmm10
+ and ecx, 2097136
+
+ movdqa xmm0, xmm10
+ pxor xmm0, xmm6
+ movdqu XMMWORD PTR [r8], xmm0
+ mov r12, QWORD PTR [rcx+rsi]
+
+ mov r9, QWORD PTR [rbx+8]
+
+ xor edx, 16
+ mov r8d, edx
+ mov r15d, edx
+
+ movq rdx, xmm5
+ shl rdx, 32
+ movq rax, xmm4
+ xor rdx, rax
+ xor r10, rdx
+ mov rax, r10
+ mul r11
+ mov r11d, r8d
+ xor r11d, 48
+ movq xmm0, rdx
+ xor rdx, [r11+r13]
+ movq xmm1, rax
+ xor rax, [r11+r13+8]
+ punpcklqdq xmm0, xmm1
+
+ pxor xmm0, XMMWORD PTR [r8+r13]
+ xor r8d, 32
+ movdqu xmm1, XMMWORD PTR [r11+r13]
+ paddq xmm0, xmm7
+ paddq xmm1, xmm2
+ movdqu XMMWORD PTR [r11+r13], xmm0
+ movdqu xmm0, XMMWORD PTR [r8+r13]
+ movdqu XMMWORD PTR [r8+r13], xmm1
+ paddq xmm0, xmm3
+ movdqu XMMWORD PTR [r15+r13], xmm0
+
+ mov r11, QWORD PTR [rsp+256]
+ add r11, rdx
+ mov rdx, QWORD PTR [rsp+264]
+ add rdx, rax
+ mov QWORD PTR [rbx], r11
+ xor r11, r10
+ mov QWORD PTR [rbx+8], rdx
+ xor rdx, r9
+ mov QWORD PTR [rsp+256], r11
+ and r11d, 2097136
+ mov QWORD PTR [rsp+264], rdx
+ mov QWORD PTR [rsp+8], r11
+ lea r15, QWORD PTR [r11+r13]
+ movdqu xmm15, XMMWORD PTR [r11+r13]
+ lea r13, QWORD PTR [rsi+rcx]
+ movdqa xmm0, xmm5
+ psrldq xmm0, 8
+ movaps xmm2, xmm13
+ movq r10, xmm0
+ psllq xmm5, 1
+ shl r10, 32
+ movdqa xmm0, xmm9
+ psrldq xmm0, 8
+ movdqa xmm1, xmm10
+ movq r11, xmm0
+ psrldq xmm1, 8
+ movq r8, xmm1
+ psrldq xmm4, 8
+ movaps xmm0, xmm13
+ movq rax, xmm4
+ xor r10, rax
+ movaps xmm1, xmm13
+ xor r10, r12
+ lea rax, QWORD PTR [r11+1]
+ shr rax, 1
+ movdqa xmm3, xmm9
+ punpcklqdq xmm3, xmm10
+ paddq xmm5, xmm3
+ movq rdx, xmm5
+ psrldq xmm5, 8
+ cvtsi2sd xmm2, rax
+ or edx, -2147483647
+ lea rax, QWORD PTR [r8+1]
+ shr rax, 1
+ movq r9, xmm5
+ cvtsi2sd xmm0, rax
+ or r9d, -2147483647
+ cvtsi2sd xmm1, rdx
+ unpcklpd xmm2, xmm0
+ movaps xmm0, xmm13
+ cvtsi2sd xmm0, r9
+ unpcklpd xmm1, xmm0
+ divpd xmm2, xmm1
+ paddq xmm2, xmm14
+ cvttsd2si rax, xmm2
+ psrldq xmm2, 8
+ mov rbx, rax
+ imul rax, rdx
+ sub r11, rax
+ js div_fix_1_sandybridge
+div_fix_1_ret_sandybridge:
+
+ cvttsd2si rdx, xmm2
+ mov rax, rdx
+ imul rax, r9
+ movd xmm2, r11d
+ movd xmm4, ebx
+ sub r8, rax
+ js div_fix_2_sandybridge
+div_fix_2_ret_sandybridge:
+
+ movd xmm1, r8d
+ movd xmm0, edx
+ punpckldq xmm2, xmm1
+ punpckldq xmm4, xmm0
+ punpckldq xmm4, xmm2
+ paddq xmm3, xmm4
+ movdqa xmm0, xmm3
+ psrlq xmm0, 12
+ paddq xmm0, xmm12
+ sqrtpd xmm1, xmm0
+ movq r9, xmm1
+ movdqa xmm5, xmm1
+ psrlq xmm5, 19
+ test r9, 524287
+ je sqrt_fix_1_sandybridge
+sqrt_fix_1_ret_sandybridge:
+
+ movq r9, xmm10
+ psrldq xmm1, 8
+ movq r8, xmm1
+ test r8, 524287
+ je sqrt_fix_2_sandybridge
+sqrt_fix_2_ret_sandybridge:
+
+ mov r12d, ecx
+ mov r8d, ecx
+ xor r12d, 16
+ xor r8d, 32
+ xor ecx, 48
+ mov rax, r10
+ mul r9
+ movq xmm0, rax
+ movq xmm3, rdx
+ punpcklqdq xmm3, xmm0
+
+ movdqu xmm0, XMMWORD PTR [r12+rsi]
+ pxor xmm0, xmm3
+ movdqu xmm1, XMMWORD PTR [r8+rsi]
+ xor rdx, [r8+rsi]
+ xor rax, [r8+rsi+8]
+ movdqu xmm3, XMMWORD PTR [rcx+rsi]
+ paddq xmm0, xmm6
+ paddq xmm1, xmm11
+ paddq xmm3, xmm8
+ movdqu XMMWORD PTR [r8+rsi], xmm0
+ movdqu XMMWORD PTR [rcx+rsi], xmm1
+ movdqu XMMWORD PTR [r12+rsi], xmm3
+
+ add rdi, rdx
+ mov QWORD PTR [r13], rdi
+ xor rdi, r10
+ mov ecx, edi
+ and ecx, 2097136
+ lea r8, QWORD PTR [rcx+rsi]
+
+ mov rdx, QWORD PTR [r13+8]
+ add rbp, rax
+ mov QWORD PTR [r13+8], rbp
+ movdqu xmm11, XMMWORD PTR [rcx+rsi]
+ xor rbp, rdx
+ mov r13, QWORD PTR [rsp]
+ movdqa xmm3, xmm7
+ mov rdx, QWORD PTR [rsp+8]
+ movdqa xmm8, xmm6
+ mov r10, QWORD PTR [rsp+256]
+ movdqa xmm7, xmm9
+ mov r11, QWORD PTR [rsp+264]
+ movdqa xmm6, xmm10
+ mov r9, r15
+ dec r14d
+ jne main_loop_double_sandybridge
+
+ ldmxcsr DWORD PTR [rsp+272]
+ movaps xmm13, XMMWORD PTR [rsp+48]
+ lea r11, QWORD PTR [rsp+184]
+ movaps xmm6, XMMWORD PTR [r11-24]
+ movaps xmm7, XMMWORD PTR [r11-40]
+ movaps xmm8, XMMWORD PTR [r11-56]
+ movaps xmm9, XMMWORD PTR [r11-72]
+ movaps xmm10, XMMWORD PTR [r11-88]
+ movaps xmm11, XMMWORD PTR [r11-104]
+ movaps xmm12, XMMWORD PTR [r11-120]
+ movaps xmm14, XMMWORD PTR [rsp+32]
+ movaps xmm15, XMMWORD PTR [rsp+16]
+ mov rsp, r11
+ pop r15
+ pop r14
+ pop r13
+ pop r12
+ pop rdi
+ pop rsi
+ pop rbp
+ pop rbx
+ jmp cnv2_double_mainloop_asm_sandybridge_endp
+
+div_fix_1_sandybridge:
+ dec rbx
+ add r11, rdx
+ jmp div_fix_1_ret_sandybridge
+
+div_fix_2_sandybridge:
+ dec rdx
+ add r8, r9
+ jmp div_fix_2_ret_sandybridge
+
+sqrt_fix_1_sandybridge:
+ movq r8, xmm3
+ movdqa xmm0, xmm5
+ psrldq xmm0, 8
+ dec r9
+ mov r11d, -1022
+ shl r11, 32
+ mov rax, r9
+ shr r9, 19
+ shr rax, 20
+ mov rdx, r9
+ sub rdx, rax
+ lea rdx, [rdx+r11+1]
+ add rax, r11
+ imul rdx, rax
+ sub rdx, r8
+ adc r9, 0
+ movq xmm5, r9
+ punpcklqdq xmm5, xmm0
+ jmp sqrt_fix_1_ret_sandybridge
+
+sqrt_fix_2_sandybridge:
+ psrldq xmm3, 8
+ movq r11, xmm3
+ dec r8
+ mov ebx, -1022
+ shl rbx, 32
+ mov rax, r8
+ shr r8, 19
+ shr rax, 20
+ mov rdx, r8
+ sub rdx, rax
+ lea rdx, [rdx+rbx+1]
+ add rax, rbx
+ imul rdx, rax
+ sub rdx, r11
+ adc r8, 0
+ movq xmm0, r8
+ punpcklqdq xmm5, xmm0
+ jmp sqrt_fix_2_ret_sandybridge
+
+cnv2_double_mainloop_asm_sandybridge_endp:
diff --git a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_win64.inc b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_win64.inc
new file mode 100644
index 0000000000000000000000000000000000000000..ad8f1823309c2cc2f77391e87de6e6de8b36de84
--- /dev/null
+++ b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_double_main_loop_sandybridge_win64.inc
@@ -0,0 +1,410 @@
+ mov rax, rsp
+ push rbx
+ push rbp
+ push rsi
+ push rdi
+ push r12
+ push r13
+ push r14
+ push r15
+ sub rsp, 184
+
+ stmxcsr DWORD PTR [rsp+272]
+ mov DWORD PTR [rsp+276], 24448
+ ldmxcsr DWORD PTR [rsp+276]
+
+ mov r13, QWORD PTR [rcx+224]
+ mov r9, rdx
+ mov r10, QWORD PTR [rcx+32]
+ mov r8, rcx
+ xor r10, QWORD PTR [rcx]
+ mov r14d, 524288
+ mov r11, QWORD PTR [rcx+40]
+ xor r11, QWORD PTR [rcx+8]
+ mov rsi, QWORD PTR [rdx+224]
+ mov rdx, QWORD PTR [rcx+56]
+ xor rdx, QWORD PTR [rcx+24]
+ mov rdi, QWORD PTR [r9+32]
+ xor rdi, QWORD PTR [r9]
+ mov rbp, QWORD PTR [r9+40]
+ xor rbp, QWORD PTR [r9+8]
+ movd xmm0, rdx
+ movaps XMMWORD PTR [rax-88], xmm6
+ movaps XMMWORD PTR [rax-104], xmm7
+ movaps XMMWORD PTR [rax-120], xmm8
+ movaps XMMWORD PTR [rsp+112], xmm9
+ movaps XMMWORD PTR [rsp+96], xmm10
+ movaps XMMWORD PTR [rsp+80], xmm11
+ movaps XMMWORD PTR [rsp+64], xmm12
+ movaps XMMWORD PTR [rsp+48], xmm13
+ movaps XMMWORD PTR [rsp+32], xmm14
+ movaps XMMWORD PTR [rsp+16], xmm15
+ mov rdx, r10
+ movq xmm4, QWORD PTR [r8+96]
+ and edx, 2097136
+ mov rax, QWORD PTR [rcx+48]
+ xorps xmm13, xmm13
+ xor rax, QWORD PTR [rcx+16]
+ mov rcx, QWORD PTR [rcx+88]
+ xor rcx, QWORD PTR [r8+72]
+ movq xmm5, QWORD PTR [r8+104]
+ movd xmm7, rax
+
+ mov eax, 1
+ shl rax, 52
+ movd xmm14, rax
+ punpcklqdq xmm14, xmm14
+
+ mov eax, 1023
+ shl rax, 52
+ movd xmm12, rax
+ punpcklqdq xmm12, xmm12
+
+ mov rax, QWORD PTR [r8+80]
+ xor rax, QWORD PTR [r8+64]
+ punpcklqdq xmm7, xmm0
+ movd xmm0, rcx
+ mov rcx, QWORD PTR [r9+56]
+ xor rcx, QWORD PTR [r9+24]
+ movd xmm3, rax
+ mov rax, QWORD PTR [r9+48]
+ xor rax, QWORD PTR [r9+16]
+ punpcklqdq xmm3, xmm0
+ movd xmm0, rcx
+ mov QWORD PTR [rsp], r13
+ mov rcx, QWORD PTR [r9+88]
+ xor rcx, QWORD PTR [r9+72]
+ movd xmm6, rax
+ mov rax, QWORD PTR [r9+80]
+ xor rax, QWORD PTR [r9+64]
+ punpcklqdq xmm6, xmm0
+ movd xmm0, rcx
+ mov QWORD PTR [rsp+256], r10
+ mov rcx, rdi
+ mov QWORD PTR [rsp+264], r11
+ movd xmm8, rax
+ and ecx, 2097136
+ punpcklqdq xmm8, xmm0
+ movd xmm0, QWORD PTR [r9+96]
+ punpcklqdq xmm4, xmm0
+ movd xmm0, QWORD PTR [r9+104]
+ lea r8, QWORD PTR [rcx+rsi]
+ movdqu xmm11, XMMWORD PTR [r8]
+ punpcklqdq xmm5, xmm0
+ lea r9, QWORD PTR [rdx+r13]
+ movdqu xmm15, XMMWORD PTR [r9]
+
+ ALIGN 64
+main_loop_double_sandybridge:
+ movdqu xmm9, xmm15
+ mov eax, edx
+ mov ebx, edx
+ xor eax, 16
+ xor ebx, 32
+ xor edx, 48
+
+ movd xmm0, r11
+ movd xmm2, r10
+ punpcklqdq xmm2, xmm0
+ aesenc xmm9, xmm2
+
+ movdqu xmm0, XMMWORD PTR [rax+r13]
+ movdqu xmm1, XMMWORD PTR [rbx+r13]
+ paddq xmm0, xmm7
+ paddq xmm1, xmm2
+ movdqu XMMWORD PTR [rbx+r13], xmm0
+ movdqu xmm0, XMMWORD PTR [rdx+r13]
+ movdqu XMMWORD PTR [rdx+r13], xmm1
+ paddq xmm0, xmm3
+ movdqu XMMWORD PTR [rax+r13], xmm0
+
+ movd r11, xmm9
+ mov edx, r11d
+ and edx, 2097136
+ movdqa xmm0, xmm9
+ pxor xmm0, xmm7
+ movdqu XMMWORD PTR [r9], xmm0
+
+ lea rbx, QWORD PTR [rdx+r13]
+ mov r10, QWORD PTR [rdx+r13]
+
+ movdqu xmm10, xmm11
+ movd xmm0, rbp
+ movd xmm11, rdi
+ punpcklqdq xmm11, xmm0
+ aesenc xmm10, xmm11
+
+ mov eax, ecx
+ mov r12d, ecx
+ xor eax, 16
+ xor r12d, 32
+ xor ecx, 48
+
+ movdqu xmm0, XMMWORD PTR [rax+rsi]
+ paddq xmm0, xmm6
+ movdqu xmm1, XMMWORD PTR [r12+rsi]
+ movdqu XMMWORD PTR [r12+rsi], xmm0
+ paddq xmm1, xmm11
+ movdqu xmm0, XMMWORD PTR [rcx+rsi]
+ movdqu XMMWORD PTR [rcx+rsi], xmm1
+ paddq xmm0, xmm8
+ movdqu XMMWORD PTR [rax+rsi], xmm0
+
+ movd rcx, xmm10
+ and ecx, 2097136
+
+ movdqa xmm0, xmm10
+ pxor xmm0, xmm6
+ movdqu XMMWORD PTR [r8], xmm0
+ mov r12, QWORD PTR [rcx+rsi]
+
+ mov r9, QWORD PTR [rbx+8]
+
+ xor edx, 16
+ mov r8d, edx
+ mov r15d, edx
+
+ movd rdx, xmm5
+ shl rdx, 32
+ movd rax, xmm4
+ xor rdx, rax
+ xor r10, rdx
+ mov rax, r10
+ mul r11
+ mov r11d, r8d
+ xor r11d, 48
+ movd xmm0, rdx
+ xor rdx, [r11+r13]
+ movd xmm1, rax
+ xor rax, [r11+r13+8]
+ punpcklqdq xmm0, xmm1
+
+ pxor xmm0, XMMWORD PTR [r8+r13]
+ xor r8d, 32
+ movdqu xmm1, XMMWORD PTR [r11+r13]
+ paddq xmm0, xmm7
+ paddq xmm1, xmm2
+ movdqu XMMWORD PTR [r11+r13], xmm0
+ movdqu xmm0, XMMWORD PTR [r8+r13]
+ movdqu XMMWORD PTR [r8+r13], xmm1
+ paddq xmm0, xmm3
+ movdqu XMMWORD PTR [r15+r13], xmm0
+
+ mov r11, QWORD PTR [rsp+256]
+ add r11, rdx
+ mov rdx, QWORD PTR [rsp+264]
+ add rdx, rax
+ mov QWORD PTR [rbx], r11
+ xor r11, r10
+ mov QWORD PTR [rbx+8], rdx
+ xor rdx, r9
+ mov QWORD PTR [rsp+256], r11
+ and r11d, 2097136
+ mov QWORD PTR [rsp+264], rdx
+ mov QWORD PTR [rsp+8], r11
+ lea r15, QWORD PTR [r11+r13]
+ movdqu xmm15, XMMWORD PTR [r11+r13]
+ lea r13, QWORD PTR [rsi+rcx]
+ movdqa xmm0, xmm5
+ psrldq xmm0, 8
+ movaps xmm2, xmm13
+ movd r10, xmm0
+ psllq xmm5, 1
+ shl r10, 32
+ movdqa xmm0, xmm9
+ psrldq xmm0, 8
+ movdqa xmm1, xmm10
+ movd r11, xmm0
+ psrldq xmm1, 8
+ movd r8, xmm1
+ psrldq xmm4, 8
+ movaps xmm0, xmm13
+ movd rax, xmm4
+ xor r10, rax
+ movaps xmm1, xmm13
+ xor r10, r12
+ lea rax, QWORD PTR [r11+1]
+ shr rax, 1
+ movdqa xmm3, xmm9
+ punpcklqdq xmm3, xmm10
+ paddq xmm5, xmm3
+ movd rdx, xmm5
+ psrldq xmm5, 8
+ cvtsi2sd xmm2, rax
+ or edx, -2147483647
+ lea rax, QWORD PTR [r8+1]
+ shr rax, 1
+ movd r9, xmm5
+ cvtsi2sd xmm0, rax
+ or r9d, -2147483647
+ cvtsi2sd xmm1, rdx
+ unpcklpd xmm2, xmm0
+ movaps xmm0, xmm13
+ cvtsi2sd xmm0, r9
+ unpcklpd xmm1, xmm0
+ divpd xmm2, xmm1
+ paddq xmm2, xmm14
+ cvttsd2si rax, xmm2
+ psrldq xmm2, 8
+ mov rbx, rax
+ imul rax, rdx
+ sub r11, rax
+ js div_fix_1_sandybridge
+div_fix_1_ret_sandybridge:
+
+ cvttsd2si rdx, xmm2
+ mov rax, rdx
+ imul rax, r9
+ movd xmm2, r11d
+ movd xmm4, ebx
+ sub r8, rax
+ js div_fix_2_sandybridge
+div_fix_2_ret_sandybridge:
+
+ movd xmm1, r8d
+ movd xmm0, edx
+ punpckldq xmm2, xmm1
+ punpckldq xmm4, xmm0
+ punpckldq xmm4, xmm2
+ paddq xmm3, xmm4
+ movdqa xmm0, xmm3
+ psrlq xmm0, 12
+ paddq xmm0, xmm12
+ sqrtpd xmm1, xmm0
+ movd r9, xmm1
+ movdqa xmm5, xmm1
+ psrlq xmm5, 19
+ test r9, 524287
+ je sqrt_fix_1_sandybridge
+sqrt_fix_1_ret_sandybridge:
+
+ movd r9, xmm10
+ psrldq xmm1, 8
+ movd r8, xmm1
+ test r8, 524287
+ je sqrt_fix_2_sandybridge
+sqrt_fix_2_ret_sandybridge:
+
+ mov r12d, ecx
+ mov r8d, ecx
+ xor r12d, 16
+ xor r8d, 32
+ xor ecx, 48
+ mov rax, r10
+ mul r9
+ movd xmm0, rax
+ movd xmm3, rdx
+ punpcklqdq xmm3, xmm0
+
+ movdqu xmm0, XMMWORD PTR [r12+rsi]
+ pxor xmm0, xmm3
+ movdqu xmm1, XMMWORD PTR [r8+rsi]
+ xor rdx, [r8+rsi]
+ xor rax, [r8+rsi+8]
+ movdqu xmm3, XMMWORD PTR [rcx+rsi]
+ paddq xmm0, xmm6
+ paddq xmm1, xmm11
+ paddq xmm3, xmm8
+ movdqu XMMWORD PTR [r8+rsi], xmm0
+ movdqu XMMWORD PTR [rcx+rsi], xmm1
+ movdqu XMMWORD PTR [r12+rsi], xmm3
+
+ add rdi, rdx
+ mov QWORD PTR [r13], rdi
+ xor rdi, r10
+ mov ecx, edi
+ and ecx, 2097136
+ lea r8, QWORD PTR [rcx+rsi]
+
+ mov rdx, QWORD PTR [r13+8]
+ add rbp, rax
+ mov QWORD PTR [r13+8], rbp
+ movdqu xmm11, XMMWORD PTR [rcx+rsi]
+ xor rbp, rdx
+ mov r13, QWORD PTR [rsp]
+ movdqa xmm3, xmm7
+ mov rdx, QWORD PTR [rsp+8]
+ movdqa xmm8, xmm6
+ mov r10, QWORD PTR [rsp+256]
+ movdqa xmm7, xmm9
+ mov r11, QWORD PTR [rsp+264]
+ movdqa xmm6, xmm10
+ mov r9, r15
+ dec r14d
+ jne main_loop_double_sandybridge
+
+ ldmxcsr DWORD PTR [rsp+272]
+ movaps xmm13, XMMWORD PTR [rsp+48]
+ lea r11, QWORD PTR [rsp+184]
+ movaps xmm6, XMMWORD PTR [r11-24]
+ movaps xmm7, XMMWORD PTR [r11-40]
+ movaps xmm8, XMMWORD PTR [r11-56]
+ movaps xmm9, XMMWORD PTR [r11-72]
+ movaps xmm10, XMMWORD PTR [r11-88]
+ movaps xmm11, XMMWORD PTR [r11-104]
+ movaps xmm12, XMMWORD PTR [r11-120]
+ movaps xmm14, XMMWORD PTR [rsp+32]
+ movaps xmm15, XMMWORD PTR [rsp+16]
+ mov rsp, r11
+ pop r15
+ pop r14
+ pop r13
+ pop r12
+ pop rdi
+ pop rsi
+ pop rbp
+ pop rbx
+ jmp cnv2_double_mainloop_asm_sandybridge_endp
+
+div_fix_1_sandybridge:
+ dec rbx
+ add r11, rdx
+ jmp div_fix_1_ret_sandybridge
+
+div_fix_2_sandybridge:
+ dec rdx
+ add r8, r9
+ jmp div_fix_2_ret_sandybridge
+
+sqrt_fix_1_sandybridge:
+ movd r8, xmm3
+ movdqa xmm0, xmm5
+ psrldq xmm0, 8
+ dec r9
+ mov r11d, -1022
+ shl r11, 32
+ mov rax, r9
+ shr r9, 19
+ shr rax, 20
+ mov rdx, r9
+ sub rdx, rax
+ lea rdx, [rdx+r11+1]
+ add rax, r11
+ imul rdx, rax
+ sub rdx, r8
+ adc r9, 0
+ movd xmm5, r9
+ punpcklqdq xmm5, xmm0
+ jmp sqrt_fix_1_ret_sandybridge
+
+sqrt_fix_2_sandybridge:
+ psrldq xmm3, 8
+ movd r11, xmm3
+ dec r8
+ mov ebx, -1022
+ shl rbx, 32
+ mov rax, r8
+ shr r8, 19
+ shr rax, 20
+ mov rdx, r8
+ sub rdx, rax
+ lea rdx, [rdx+rbx+1]
+ add rax, rbx
+ imul rdx, rax
+ sub rdx, r11
+ adc r8, 0
+ movd xmm0, r8
+ punpcklqdq xmm5, xmm0
+ jmp sqrt_fix_2_ret_sandybridge
+
+cnv2_double_mainloop_asm_sandybridge_endp:
diff --git a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S
index b6be9438f65c19d9e305419982184d845d9c81c3..c0a3d0b41498ee419deca860ea1c307407a5d0ab 100644
--- a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S
+++ b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.S
@@ -9,6 +9,7 @@
#endif
.global FN_PREFIX(cryptonight_v8_mainloop_ivybridge_asm)
.global FN_PREFIX(cryptonight_v8_mainloop_ryzen_asm)
+.global FN_PREFIX(cryptonight_v8_double_mainloop_sandybridge_asm)
ALIGN 8
FN_PREFIX(cryptonight_v8_mainloop_ivybridge_asm):
@@ -25,3 +26,12 @@ FN_PREFIX(cryptonight_v8_mainloop_ryzen_asm):
#include "cryptonight_v8_main_loop_ryzen_linux.inc"
add rsp, 48
ret 0
+
+ALIGN 16
+FN_PREFIX(cryptonight_v8_double_mainloop_sandybridge_asm):
+ sub rsp, 48
+ mov rcx, rdi
+ mov rdx, rsi
+ #include "cryptonight_v8_double_main_loop_sandybridge_linux.inc"
+ add rsp, 48
+ ret 0
diff --git a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm
index a1615e9bd5a630e403582f43bbadea86633b6ef2..1f3d2e15cebb3268ce566f62921f40ce9eafafc7 100644
--- a/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm
+++ b/xmrstak/backend/cpu/crypto/asm/cryptonight_v8_main_loop.asm
@@ -1,6 +1,7 @@
_TEXT_CNV8_MAINLOOP SEGMENT PAGE READ EXECUTE
PUBLIC cryptonight_v8_mainloop_ivybridge_asm
PUBLIC cryptonight_v8_mainloop_ryzen_asm
+PUBLIC cryptonight_v8_double_mainloop_sandybridge_asm
ALIGN 8
cryptonight_v8_mainloop_ivybridge_asm PROC
@@ -14,5 +15,11 @@ cryptonight_v8_mainloop_ryzen_asm PROC
ret 0
cryptonight_v8_mainloop_ryzen_asm ENDP
+ALIGN 8
+cryptonight_v8_double_mainloop_sandybridge_asm PROC
+ INCLUDE cryptonight_v8_double_main_loop_sandybridge_win64.inc
+ ret 0
+cryptonight_v8_double_mainloop_sandybridge_asm ENDP
+
_TEXT_CNV8_MAINLOOP ENDS
END
diff --git a/xmrstak/backend/cpu/crypto/cryptonight_aesni.h b/xmrstak/backend/cpu/crypto/cryptonight_aesni.h
index c0f122fd6f94bc658a746e85af170c4835a54837..e8c0aca2bd532e9a2eaa7a351086bca25107d405 100644
--- a/xmrstak/backend/cpu/crypto/cryptonight_aesni.h
+++ b/xmrstak/backend/cpu/crypto/cryptonight_aesni.h
@@ -940,21 +940,63 @@ struct Cryptonight_hash<5>
extern "C" void cryptonight_v8_mainloop_ivybridge_asm(cryptonight_ctx* ctx0);
extern "C" void cryptonight_v8_mainloop_ryzen_asm(cryptonight_ctx* ctx0);
+extern "C" void cryptonight_v8_double_mainloop_sandybridge_asm(cryptonight_ctx* ctx0, cryptonight_ctx* ctx1);
-template<xmrstak_algo ALGO, int asm_version>
-void cryptonight_hash_v2_asm(const void* input, size_t len, void* output, cryptonight_ctx** ctx)
+
+template< size_t N, size_t asm_version>
+struct Cryptonight_hash_asm;
+
+template<size_t asm_version>
+struct Cryptonight_hash_asm<1, asm_version>
{
- constexpr size_t MEM = cn_select_memory<ALGO>();
+ static constexpr size_t N = 1;
- keccak((const uint8_t *)input, len, ctx[0]->hash_state, 200);
- cn_explode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[0]->hash_state, (__m128i*)ctx[0]->long_state);
+ template<xmrstak_algo ALGO>
+ static void hash(const void* input, size_t len, void* output, cryptonight_ctx** ctx)
+ {
+ constexpr size_t MEM = cn_select_memory<ALGO>();
- if (asm_version == 1)
- cryptonight_v8_mainloop_ivybridge_asm(ctx[0]);
- else
- cryptonight_v8_mainloop_ryzen_asm(ctx[0]);
+ keccak((const uint8_t *)input, len, ctx[0]->hash_state, 200);
+ cn_explode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[0]->hash_state, (__m128i*)ctx[0]->long_state);
- cn_implode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[0]->long_state, (__m128i*)ctx[0]->hash_state);
- keccakf((uint64_t*)ctx[0]->hash_state, 24);
- extra_hashes[ctx[0]->hash_state[0] & 3](ctx[0]->hash_state, 200, (char*)output);
-}
+ if(asm_version == 0)
+ cryptonight_v8_mainloop_ivybridge_asm(ctx[0]);
+ else if(asm_version == 1)
+ cryptonight_v8_mainloop_ryzen_asm(ctx[0]);
+
+ cn_implode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[0]->long_state, (__m128i*)ctx[0]->hash_state);
+ keccakf((uint64_t*)ctx[0]->hash_state, 24);
+ extra_hashes[ctx[0]->hash_state[0] & 3](ctx[0]->hash_state, 200, (char*)output);
+ }
+};
+
+// double hash only for intel
+template< >
+struct Cryptonight_hash_asm<2, 0>
+{
+ static constexpr size_t N = 2;
+
+ template<xmrstak_algo ALGO>
+ static void hash(const void* input, size_t len, void* output, cryptonight_ctx** ctx)
+ {
+ constexpr size_t MEM = cn_select_memory<ALGO>();
+
+ for(size_t i = 0; i < N; ++i)
+ {
+ keccak((const uint8_t *)input + len * i, len, ctx[i]->hash_state, 200);
+ /* Optim - 99% time boundary */
+ cn_explode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[i]->hash_state, (__m128i*)ctx[i]->long_state);
+ }
+
+ cryptonight_v8_double_mainloop_sandybridge_asm(ctx[0], ctx[1]);
+
+ for(size_t i = 0; i < N; ++i)
+ {
+ /* Optim - 90% time boundary */
+ cn_implode_scratchpad<MEM, false, false, ALGO>((__m128i*)ctx[i]->long_state, (__m128i*)ctx[i]->hash_state);
+ /* Optim - 99% time boundary */
+ keccakf((uint64_t*)ctx[i]->hash_state, 24);
+ extra_hashes[ctx[i]->hash_state[0] & 3](ctx[i]->hash_state, 200, (char*)output + 32 * i);
+ }
+ }
+};
diff --git a/xmrstak/backend/cpu/minethd.cpp b/xmrstak/backend/cpu/minethd.cpp
index a344a9ffe74a17f584313ae7e28940c0d6567359..bb80b938f7a9cbda6546964059e9dd8710bb5471 100644
--- a/xmrstak/backend/cpu/minethd.cpp
+++ b/xmrstak/backend/cpu/minethd.cpp
@@ -455,24 +455,27 @@ minethd::cn_hash_fun minethd::func_multi_selector(bool bHaveAes, bool bNoPrefetc
static_assert(N >= 1, "number of threads must be >= 1" );
// check for asm optimized version for cryptonight_v8
- if(N == 1 && algo == cryptonight_monero_v8 && bHaveAes)
+ if(N <= 2 && algo == cryptonight_monero_v8 && bHaveAes)
{
if(asm_version_str != "off")
{
+ if(asm_version_str != "intel" && asm_version_str != "ryzen")
+ printer::inst()->print_msg(L1, "Assembler %s unknown, fallback to non asm version of cryptonight_v8", asm_version_str.c_str());
+
if(asm_version_str == "intel")
{
// Intel Ivy Bridge (Xeon v2, Core i7/i5/i3 3xxx, Pentium G2xxx, Celeron G1xxx)
- return cryptonight_hash_v2_asm<cryptonight_monero_v8, 1>;
+ if(N == 1)
+ return Cryptonight_hash_asm<1u, 0u>::template hash<cryptonight_monero_v8>;
+ else if(N == 2)
+ return Cryptonight_hash_asm<2u, 0u>::template hash<cryptonight_monero_v8>;
}
- if(asm_version_str == "ryzen")
+ // supports only 1 thread per hash
+ if(N == 1 && asm_version_str == "ryzen")
{
// AMD Ryzen (1xxx and 2xxx series)
- return cryptonight_hash_v2_asm<cryptonight_monero_v8, 2>;
- }
- else
- {
- printer::inst()->print_msg(L1, "Assembler %s unknown, fallback to non asm version of cryptonight_v8", asm_version_str.c_str());
- }
+ return Cryptonight_hash_asm<1u, 1u>::template hash<cryptonight_monero_v8>;
+ }
}
}
// We have two independent flag bits in the functions