220 lines
4.3 KiB
NASM
220 lines
4.3 KiB
NASM
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;; SHA-256 for X86-64 for Linux, based off of:
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; (c) Ufasoft 2011 http://ufasoft.com mailto:support@ufasoft.com
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; Version 2011
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; This software is Public Domain
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; SHA-256 CPU SSE cruncher for Bitcoin Miner
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ALIGN 32
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BITS 64
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%define hash rdi
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%define data rsi
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%define init rdx
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extern g_4sha256_k
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global CalcSha256_x64
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; CalcSha256 hash(rdi), data(rsi), init(rdx)
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CalcSha256_x64:
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push rbx
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LAB_NEXT_NONCE:
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mov r11, data
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; mov rax, pnonce
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; mov eax, [rax]
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; mov [rbx+3*16], eax
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; inc eax
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; mov [rbx+3*16+4], eax
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; inc eax
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; mov [rbx+3*16+8], eax
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; inc eax
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; mov [rbx+3*16+12], eax
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mov rcx, 64*4 ;rcx is # of SHA-2 rounds
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mov rax, 16*4 ;rax is where we expand to
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LAB_SHA:
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push rcx
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lea rcx, qword [r11+rcx*4]
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lea r11, qword [r11+rax*4]
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LAB_CALC:
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movdqa xmm0, [r11-15*16]
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movdqa xmm2, xmm0 ; (Rotr32(w_15, 7) ^ Rotr32(w_15, 18) ^ (w_15 >> 3))
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psrld xmm0, 3
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movdqa xmm1, xmm0
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pslld xmm2, 14
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psrld xmm1, 4
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pxor xmm0, xmm1
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pxor xmm0, xmm2
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pslld xmm2, 11
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psrld xmm1, 11
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pxor xmm0, xmm1
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pxor xmm0, xmm2
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paddd xmm0, [r11-16*16]
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movdqa xmm3, [r11-2*16]
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movdqa xmm2, xmm3 ; (Rotr32(w_2, 17) ^ Rotr32(w_2, 19) ^ (w_2 >> 10))
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psrld xmm3, 10
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movdqa xmm1, xmm3
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pslld xmm2, 13
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psrld xmm1, 7
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pxor xmm3, xmm1
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pxor xmm3, xmm2
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pslld xmm2, 2
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psrld xmm1, 2
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pxor xmm3, xmm1
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pxor xmm3, xmm2
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paddd xmm0, xmm3
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paddd xmm0, [r11-7*16]
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movdqa [r11], xmm0
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add r11, 16
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cmp r11, rcx
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jb LAB_CALC
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pop rcx
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mov rax, 0
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; Load the init values of the message into the hash.
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movd xmm0, dword [rdx+4*4] ; xmm0 == e
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pshufd xmm0, xmm0, 0
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movd xmm3, dword [rdx+3*4] ; xmm3 == d
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pshufd xmm3, xmm3, 0
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movd xmm4, dword [rdx+2*4] ; xmm4 == c
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pshufd xmm4, xmm4, 0
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movd xmm5, dword [rdx+1*4] ; xmm5 == b
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pshufd xmm5, xmm5, 0
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movd xmm7, dword [rdx+0*4] ; xmm7 == a
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pshufd xmm7, xmm7, 0
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movd xmm8, dword [rdx+5*4] ; xmm8 == f
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pshufd xmm8, xmm8, 0
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movd xmm9, dword [rdx+6*4] ; xmm9 == g
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pshufd xmm9, xmm9, 0
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movd xmm10, dword [rdx+7*4] ; xmm10 == h
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pshufd xmm10, xmm10, 0
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LAB_LOOP:
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;; T t1 = h + (Rotr32(e, 6) ^ Rotr32(e, 11) ^ Rotr32(e, 25)) + ((e & f) ^ AndNot(e, g)) + Expand32<T>(g_sha256_k[j]) + w[j]
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movdqa xmm6, [rsi+rax*4]
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paddd xmm6, g_4sha256_k[rax*4]
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add rax, 4
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paddd xmm6, xmm10 ; +h
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movdqa xmm1, xmm0
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movdqa xmm2, xmm9
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pandn xmm1, xmm2 ; ~e & g
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movdqa xmm10, xmm2 ; h = g
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movdqa xmm2, xmm8 ; f
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movdqa xmm9, xmm2 ; g = f
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pand xmm2, xmm0 ; e & f
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pxor xmm1, xmm2 ; (e & f) ^ (~e & g)
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movdqa xmm8, xmm0 ; f = e
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paddd xmm6, xmm1 ; Ch + h + w[i] + k[i]
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movdqa xmm1, xmm0
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psrld xmm0, 6
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movdqa xmm2, xmm0
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pslld xmm1, 7
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psrld xmm2, 5
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pxor xmm0, xmm1
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pxor xmm0, xmm2
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pslld xmm1, 14
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psrld xmm2, 14
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pxor xmm0, xmm1
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pxor xmm0, xmm2
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pslld xmm1, 5
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pxor xmm0, xmm1 ; Rotr32(e, 6) ^ Rotr32(e, 11) ^ Rotr32(e, 25)
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paddd xmm6, xmm0 ; xmm6 = t1
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movdqa xmm0, xmm3 ; d
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paddd xmm0, xmm6 ; e = d+t1
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movdqa xmm1, xmm5 ; =b
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movdqa xmm3, xmm4 ; d = c
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movdqa xmm2, xmm4 ; c
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pand xmm2, xmm5 ; b & c
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pand xmm4, xmm7 ; a & c
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pand xmm1, xmm7 ; a & b
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pxor xmm1, xmm4
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movdqa xmm4, xmm5 ; c = b
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movdqa xmm5, xmm7 ; b = a
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pxor xmm1, xmm2 ; (a & c) ^ (a & d) ^ (c & d)
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paddd xmm6, xmm1 ; t1 + ((a & c) ^ (a & d) ^ (c & d))
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movdqa xmm2, xmm7
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psrld xmm7, 2
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movdqa xmm1, xmm7
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pslld xmm2, 10
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psrld xmm1, 11
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pxor xmm7, xmm2
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pxor xmm7, xmm1
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pslld xmm2, 9
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psrld xmm1, 9
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pxor xmm7, xmm2
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pxor xmm7, xmm1
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pslld xmm2, 11
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pxor xmm7, xmm2
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paddd xmm7, xmm6 ; a = t1 + (Rotr32(a, 2) ^ Rotr32(a, 13) ^ Rotr32(a, 22)) + ((a & c) ^ (a & d) ^ (c & d));
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cmp rax, rcx
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jb LAB_LOOP
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; Finished the 64 rounds, calculate hash and save
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movd xmm1, dword [rdx+0*4]
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pshufd xmm1, xmm1, 0
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paddd xmm7, xmm1
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movd xmm1, dword [rdx+1*4]
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pshufd xmm1, xmm1, 0
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paddd xmm5, xmm1
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movd xmm1, dword [rdx+2*4]
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pshufd xmm1, xmm1, 0
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paddd xmm4, xmm1
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movd xmm1, dword [rdx+3*4]
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pshufd xmm1, xmm1, 0
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paddd xmm3, xmm1
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movd xmm1, dword [rdx+4*4]
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pshufd xmm1, xmm1, 0
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paddd xmm0, xmm1
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movd xmm1, dword [rdx+5*4]
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pshufd xmm1, xmm1, 0
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paddd xmm8, xmm1
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movd xmm1, dword [rdx+6*4]
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pshufd xmm1, xmm1, 0
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paddd xmm9, xmm1
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movd xmm1, dword [rdx+7*4]
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pshufd xmm1, xmm1, 0
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paddd xmm10, xmm1
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debug_me:
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movdqa [rdi+0*16], xmm7
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movdqa [rdi+1*16], xmm5
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movdqa [rdi+2*16], xmm4
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movdqa [rdi+3*16], xmm3
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movdqa [rdi+4*16], xmm0
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movdqa [rdi+5*16], xmm8
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movdqa [rdi+6*16], xmm9
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movdqa [rdi+7*16], xmm10
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LAB_RET:
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pop rbx
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ret
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