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sha512.wat
651 lines (566 loc) · 38.9 KB
/
sha512.wat
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(module
(memory (export "memory") 1)
;; registers
(global $a (mut i64) (i64.const 0))
(global $b (mut i64) (i64.const 0))
(global $c (mut i64) (i64.const 0))
(global $d (mut i64) (i64.const 0))
(global $e (mut i64) (i64.const 0))
(global $f (mut i64) (i64.const 0))
(global $g (mut i64) (i64.const 0))
(global $h (mut i64) (i64.const 0))
(func $i64.bswap
(param $b i64)
(result i64)
;; 1 set, 4 get, 8 const, 10 bitwise
(i64.or
(get_local $b)
(i64.const 0xFFFF0000FFFF0000)
(i64.and)
(i64.rotl (i64.const 16))
(get_local $b)
(i64.const 0x0000FFFF0000FFFF)
(i64.and)
(i64.rotr (i64.const 16)))
(set_local $b)
(i64.or
(get_local $b)
(i64.const 0x00FF00FF00FF00FF)
(i64.and)
(i64.rotl (i64.const 8))
(get_local $b)
(i64.const 0xFF00FF00FF00FF00)
(i64.and)
(i64.rotr (i64.const 8))))
(func $four_round
(param $w0 i64) (param $w1 i64) (param $w2 i64) (param $w3 i64)
(param $k0 i64) (param $k1 i64) (param $k2 i64) (param $k3 i64)
;; precomputed values
(local $T1 i64)
(local $T2 i64)
(local $ch_res i64)
(local $maj_res i64)
(local $big_sig0_res i64)
(local $big_sig1_res i64)
;; precompute intermediate values
;; T1 = h + big_sig1(e) + ch(e, f, g) + K0 + W0
;; T2 = big_sig0(a) + Maj(a, b, c)
;; can compute 4 rounds independently
(set_local $ch_res (i64.xor (i64.and (get_global $e) (get_global $f)) (i64.and (i64.xor (get_global $e) (i64.const -1)) (get_global $g))))
(set_local $maj_res (i64.xor (i64.xor (i64.and (get_global $a) (get_global $b)) (i64.and (get_global $a) (get_global $c))) (i64.and (get_global $b) (get_global $c))))
(set_local $big_sig0_res (i64.xor (i64.xor (i64.rotr (get_global $a) (i64.const 28)) (i64.rotr (get_global $a) (i64.const 34))) (i64.rotr (get_global $a) (i64.const 39))))
(set_local $big_sig1_res (i64.xor (i64.xor (i64.rotr (get_global $e) (i64.const 14)) (i64.rotr (get_global $e) (i64.const 18))) (i64.rotr (get_global $e) (i64.const 41))))
(set_local $T1 (i64.add (i64.add (i64.add (i64.add (get_global $h) (get_local $ch_res)) (get_local $big_sig1_res)) (get_local $w0)) (get_local $k0)))
(set_local $T2 (i64.add (get_local $big_sig0_res) (get_local $maj_res)))
(set_global $h (i64.add (get_global $d) (get_local $T1)))
(set_global $d (i64.add (get_local $T1) (get_local $T2)))
(set_local $ch_res (i64.xor (i64.and (get_global $h) (get_global $e)) (i64.and (i64.xor (get_global $h) (i64.const -1)) (get_global $f))))
(set_local $maj_res (i64.xor (i64.xor (i64.and (get_global $d) (get_global $a)) (i64.and (get_global $d) (get_global $b))) (i64.and (get_global $a) (get_global $b))))
(set_local $big_sig0_res (i64.xor (i64.xor (i64.rotr (get_global $d) (i64.const 28)) (i64.rotr (get_global $d) (i64.const 34))) (i64.rotr (get_global $d) (i64.const 39))))
(set_local $big_sig1_res (i64.xor (i64.xor (i64.rotr (get_global $h) (i64.const 14)) (i64.rotr (get_global $h) (i64.const 18))) (i64.rotr (get_global $h) (i64.const 41))))
(set_local $T1 (i64.add (i64.add (i64.add (i64.add (get_global $g) (get_local $ch_res)) (get_local $big_sig1_res)) (get_local $w1)) (get_local $k1)))
(set_local $T2 (i64.add (get_local $big_sig0_res) (get_local $maj_res)))
(set_global $g (i64.add (get_global $c) (get_local $T1)))
(set_global $c (i64.add (get_local $T1) (get_local $T2)))
(set_local $ch_res (i64.xor (i64.and (get_global $g) (get_global $h)) (i64.and (i64.xor (get_global $g) (i64.const -1)) (get_global $e))))
(set_local $maj_res (i64.xor (i64.xor (i64.and (get_global $c) (get_global $d)) (i64.and (get_global $c) (get_global $a))) (i64.and (get_global $d) (get_global $a))))
(set_local $big_sig0_res (i64.xor (i64.xor (i64.rotr (get_global $c) (i64.const 28)) (i64.rotr (get_global $c) (i64.const 34))) (i64.rotr (get_global $c) (i64.const 39))))
(set_local $big_sig1_res (i64.xor (i64.xor (i64.rotr (get_global $g) (i64.const 14)) (i64.rotr (get_global $g) (i64.const 18))) (i64.rotr (get_global $g) (i64.const 41))))
(set_local $T1 (i64.add (i64.add (i64.add (i64.add (get_global $f) (get_local $ch_res)) (get_local $big_sig1_res)) (get_local $w2)) (get_local $k2)))
(set_local $T2 (i64.add (get_local $big_sig0_res) (get_local $maj_res)))
(set_global $f (i64.add (get_global $b) (get_local $T1)))
(set_global $b (i64.add (get_local $T1) (get_local $T2)))
(set_local $ch_res (i64.xor (i64.and (get_global $f) (get_global $g)) (i64.and (i64.xor (get_global $f) (i64.const -1)) (get_global $h))))
(set_local $maj_res (i64.xor (i64.xor (i64.and (get_global $b) (get_global $c)) (i64.and (get_global $b) (get_global $d))) (i64.and (get_global $d) (get_global $c))))
(set_local $big_sig0_res (i64.xor (i64.xor (i64.rotr (get_global $b) (i64.const 28)) (i64.rotr (get_global $b) (i64.const 34))) (i64.rotr (get_global $b) (i64.const 39))))
(set_local $big_sig1_res (i64.xor (i64.xor (i64.rotr (get_global $f) (i64.const 14)) (i64.rotr (get_global $f) (i64.const 18))) (i64.rotr (get_global $f) (i64.const 41))))
(set_local $T1 (i64.add (i64.add (i64.add (i64.add (get_global $e) (get_local $ch_res)) (get_local $big_sig1_res)) (get_local $w3)) (get_local $k3)))
(set_local $T2 (i64.add (get_local $big_sig0_res) (get_local $maj_res)))
(set_global $e (i64.add (get_global $a) (get_local $T1)))
(set_global $a (i64.add (get_local $T1) (get_local $T2))))
(func $expand
(param $a i64) (param $b i64) (param $c i64) (param $d i64)
(result i64)
(i64.add
(i64.add
(i64.add
(i64.xor
(i64.xor
(i64.rotr (get_local $a) (i64.const 19))
(i64.rotr (get_local $a) (i64.const 61)))
(i64.shr_u (get_local $a) (i64.const 6)))
(get_local $b))
(i64.xor
(i64.xor
(i64.rotr (get_local $c) (i64.const 1))
(i64.rotr (get_local $c) (i64.const 8)))
(i64.shr_u (get_local $c) (i64.const 7)))
(get_local $d))))
(func $compress
(param $ctx i32)
(param $w0 i64) (param $w1 i64) (param $w2 i64) (param $w3 i64)
(param $w4 i64) (param $w5 i64) (param $w6 i64) (param $w7 i64)
(param $w8 i64) (param $w9 i64) (param $w10 i64) (param $w11 i64)
(param $w12 i64) (param $w13 i64) (param $w14 i64) (param $w15 i64)
;; store inital state
(if (i64.eq (i64.load offset=208 (get_local $ctx)) (i64.const 0))
(then
(i64.store offset=0 (get_local $ctx) (i64.const 0x6a09e667f3bcc908))
(i64.store offset=8 (get_local $ctx) (i64.const 0xbb67ae8584caa73b))
(i64.store offset=16 (get_local $ctx) (i64.const 0x3c6ef372fe94f82b))
(i64.store offset=24 (get_local $ctx) (i64.const 0xa54ff53a5f1d36f1))
(i64.store offset=32 (get_local $ctx) (i64.const 0x510e527fade682d1))
(i64.store offset=40 (get_local $ctx) (i64.const 0x9b05688c2b3e6c1f))
(i64.store offset=48 (get_local $ctx) (i64.const 0x1f83d9abfb41bd6b))
(i64.store offset=56 (get_local $ctx) (i64.const 0x5be0cd19137e2179))
(i64.store offset=208 (get_local $ctx) (i64.const 1))))
;; load previous hash state into registers
(set_global $a (i64.load offset=0 (get_local $ctx)))
(set_global $b (i64.load offset=8 (get_local $ctx)))
(set_global $c (i64.load offset=16 (get_local $ctx)))
(set_global $d (i64.load offset=24 (get_local $ctx)))
(set_global $e (i64.load offset=32 (get_local $ctx)))
(set_global $f (i64.load offset=40 (get_local $ctx)))
(set_global $g (i64.load offset=48 (get_local $ctx)))
(set_global $h (i64.load offset=56 (get_local $ctx)))
(set_local $w0 (call $i64.bswap (get_local $w0 )))
(set_local $w1 (call $i64.bswap (get_local $w1 )))
(set_local $w2 (call $i64.bswap (get_local $w2 )))
(set_local $w3 (call $i64.bswap (get_local $w3 )))
(set_local $w4 (call $i64.bswap (get_local $w4 )))
(set_local $w5 (call $i64.bswap (get_local $w5 )))
(set_local $w6 (call $i64.bswap (get_local $w6 )))
(set_local $w7 (call $i64.bswap (get_local $w7 )))
(set_local $w8 (call $i64.bswap (get_local $w8 )))
(set_local $w9 (call $i64.bswap (get_local $w9 )))
(set_local $w10 (call $i64.bswap (get_local $w10)))
(set_local $w11 (call $i64.bswap (get_local $w11)))
(set_local $w12 (call $i64.bswap (get_local $w12)))
(set_local $w13 (call $i64.bswap (get_local $w13)))
(set_local $w14 (call $i64.bswap (get_local $w14)))
(set_local $w15 (call $i64.bswap (get_local $w15)))
(call $four_round (get_local $w0) (get_local $w1) (get_local $w2) (get_local $w3) (i64.const 0x428a2f98d728ae22) (i64.const 0x7137449123ef65cd) (i64.const 0xb5c0fbcfec4d3b2f) (i64.const 0xe9b5dba58189dbbc))
(call $four_round (get_local $w4) (get_local $w5) (get_local $w6) (get_local $w7) (i64.const 0x3956c25bf348b538) (i64.const 0x59f111f1b605d019) (i64.const 0x923f82a4af194f9b) (i64.const 0xab1c5ed5da6d8118))
(call $four_round (get_local $w8) (get_local $w9) (get_local $w10) (get_local $w11) (i64.const 0xd807aa98a3030242) (i64.const 0x12835b0145706fbe) (i64.const 0x243185be4ee4b28c) (i64.const 0x550c7dc3d5ffb4e2))
(call $four_round (get_local $w12) (get_local $w13) (get_local $w14) (get_local $w15) (i64.const 0x72be5d74f27b896f) (i64.const 0x80deb1fe3b1696b1) (i64.const 0x9bdc06a725c71235) (i64.const 0xc19bf174cf692694))
(set_local $w0 (call $expand (get_local $w14) (get_local $w9) (get_local $w1) (get_local $w0)))
(set_local $w1 (call $expand (get_local $w15) (get_local $w10) (get_local $w2) (get_local $w1)))
(set_local $w2 (call $expand (get_local $w0 ) (get_local $w11) (get_local $w3) (get_local $w2)))
(set_local $w3 (call $expand (get_local $w1 ) (get_local $w12) (get_local $w4) (get_local $w3)))
(set_local $w4 (call $expand (get_local $w2 ) (get_local $w13) (get_local $w5) (get_local $w4)))
(set_local $w5 (call $expand (get_local $w3 ) (get_local $w14) (get_local $w6) (get_local $w5)))
(set_local $w6 (call $expand (get_local $w4 ) (get_local $w15) (get_local $w7) (get_local $w6)))
(set_local $w7 (call $expand (get_local $w5 ) (get_local $w0) (get_local $w8) (get_local $w7)))
(set_local $w8 (call $expand (get_local $w6 ) (get_local $w1) (get_local $w9) (get_local $w8)))
(set_local $w9 (call $expand (get_local $w7 ) (get_local $w2) (get_local $w10) (get_local $w9)))
(set_local $w10 (call $expand (get_local $w8 ) (get_local $w3) (get_local $w11) (get_local $w10)))
(set_local $w11 (call $expand (get_local $w9 ) (get_local $w4) (get_local $w12) (get_local $w11)))
(set_local $w12 (call $expand (get_local $w10) (get_local $w5) (get_local $w13) (get_local $w12)))
(set_local $w13 (call $expand (get_local $w11) (get_local $w6) (get_local $w14) (get_local $w13)))
(set_local $w14 (call $expand (get_local $w12) (get_local $w7) (get_local $w15) (get_local $w14)))
(set_local $w15 (call $expand (get_local $w13) (get_local $w8) (get_local $w0) (get_local $w15)))
(call $four_round (get_local $w0) (get_local $w1) (get_local $w2) (get_local $w3) (i64.const 0xe49b69c19ef14ad2) (i64.const 0xefbe4786384f25e3) (i64.const 0x0fc19dc68b8cd5b5) (i64.const 0x240ca1cc77ac9c65))
(call $four_round (get_local $w4) (get_local $w5) (get_local $w6) (get_local $w7) (i64.const 0x2de92c6f592b0275) (i64.const 0x4a7484aa6ea6e483) (i64.const 0x5cb0a9dcbd41fbd4) (i64.const 0x76f988da831153b5))
(call $four_round (get_local $w8) (get_local $w9) (get_local $w10) (get_local $w11) (i64.const 0x983e5152ee66dfab) (i64.const 0xa831c66d2db43210) (i64.const 0xb00327c898fb213f) (i64.const 0xbf597fc7beef0ee4))
(call $four_round (get_local $w12) (get_local $w13) (get_local $w14) (get_local $w15) (i64.const 0xc6e00bf33da88fc2) (i64.const 0xd5a79147930aa725) (i64.const 0x06ca6351e003826f) (i64.const 0x142929670a0e6e70))
(set_local $w0 (call $expand (get_local $w14) (get_local $w9) (get_local $w1) (get_local $w0)))
(set_local $w1 (call $expand (get_local $w15) (get_local $w10) (get_local $w2) (get_local $w1)))
(set_local $w2 (call $expand (get_local $w0) (get_local $w11) (get_local $w3) (get_local $w2)))
(set_local $w3 (call $expand (get_local $w1) (get_local $w12) (get_local $w4) (get_local $w3)))
(set_local $w4 (call $expand (get_local $w2) (get_local $w13) (get_local $w5) (get_local $w4)))
(set_local $w5 (call $expand (get_local $w3) (get_local $w14) (get_local $w6) (get_local $w5)))
(set_local $w6 (call $expand (get_local $w4) (get_local $w15) (get_local $w7) (get_local $w6)))
(set_local $w7 (call $expand (get_local $w5) (get_local $w0) (get_local $w8) (get_local $w7)))
(set_local $w8 (call $expand (get_local $w6) (get_local $w1) (get_local $w9) (get_local $w8)))
(set_local $w9 (call $expand (get_local $w7) (get_local $w2) (get_local $w10) (get_local $w9)))
(set_local $w10 (call $expand (get_local $w8) (get_local $w3) (get_local $w11) (get_local $w10)))
(set_local $w11 (call $expand (get_local $w9) (get_local $w4) (get_local $w12) (get_local $w11)))
(set_local $w12 (call $expand (get_local $w10) (get_local $w5) (get_local $w13) (get_local $w12)))
(set_local $w13 (call $expand (get_local $w11) (get_local $w6) (get_local $w14) (get_local $w13)))
(set_local $w14 (call $expand (get_local $w12) (get_local $w7) (get_local $w15) (get_local $w14)))
(set_local $w15 (call $expand (get_local $w13) (get_local $w8) (get_local $w0) (get_local $w15)))
(call $four_round (get_local $w0) (get_local $w1) (get_local $w2) (get_local $w3) (i64.const 0x27b70a8546d22ffc) (i64.const 0x2e1b21385c26c926) (i64.const 0x4d2c6dfc5ac42aed) (i64.const 0x53380d139d95b3df))
(call $four_round (get_local $w4) (get_local $w5) (get_local $w6) (get_local $w7) (i64.const 0x650a73548baf63de) (i64.const 0x766a0abb3c77b2a8) (i64.const 0x81c2c92e47edaee6) (i64.const 0x92722c851482353b))
(call $four_round (get_local $w8) (get_local $w9) (get_local $w10) (get_local $w11) (i64.const 0xa2bfe8a14cf10364) (i64.const 0xa81a664bbc423001) (i64.const 0xc24b8b70d0f89791) (i64.const 0xc76c51a30654be30))
(call $four_round (get_local $w12) (get_local $w13) (get_local $w14) (get_local $w15) (i64.const 0xd192e819d6ef5218) (i64.const 0xd69906245565a910) (i64.const 0xf40e35855771202a) (i64.const 0x106aa07032bbd1b8))
(set_local $w0 (call $expand (get_local $w14) (get_local $w9) (get_local $w1) (get_local $w0)))
(set_local $w1 (call $expand (get_local $w15) (get_local $w10) (get_local $w2) (get_local $w1)))
(set_local $w2 (call $expand (get_local $w0) (get_local $w11) (get_local $w3) (get_local $w2)))
(set_local $w3 (call $expand (get_local $w1) (get_local $w12) (get_local $w4) (get_local $w3)))
(set_local $w4 (call $expand (get_local $w2) (get_local $w13) (get_local $w5) (get_local $w4)))
(set_local $w5 (call $expand (get_local $w3) (get_local $w14) (get_local $w6) (get_local $w5)))
(set_local $w6 (call $expand (get_local $w4) (get_local $w15) (get_local $w7) (get_local $w6)))
(set_local $w7 (call $expand (get_local $w5) (get_local $w0) (get_local $w8) (get_local $w7)))
(set_local $w8 (call $expand (get_local $w6) (get_local $w1) (get_local $w9) (get_local $w8)))
(set_local $w9 (call $expand (get_local $w7) (get_local $w2) (get_local $w10) (get_local $w9)))
(set_local $w10 (call $expand (get_local $w8) (get_local $w3) (get_local $w11) (get_local $w10)))
(set_local $w11 (call $expand (get_local $w9) (get_local $w4) (get_local $w12) (get_local $w11)))
(set_local $w12 (call $expand (get_local $w10) (get_local $w5) (get_local $w13) (get_local $w12)))
(set_local $w13 (call $expand (get_local $w11) (get_local $w6) (get_local $w14) (get_local $w13)))
(set_local $w14 (call $expand (get_local $w12) (get_local $w7) (get_local $w15) (get_local $w14)))
(set_local $w15 (call $expand (get_local $w13) (get_local $w8) (get_local $w0) (get_local $w15)))
(call $four_round (get_local $w0) (get_local $w1) (get_local $w2) (get_local $w3) (i64.const 0x19a4c116b8d2d0c8) (i64.const 0x1e376c085141ab53) (i64.const 0x2748774cdf8eeb99) (i64.const 0x34b0bcb5e19b48a8))
(call $four_round (get_local $w4) (get_local $w5) (get_local $w6) (get_local $w7) (i64.const 0x391c0cb3c5c95a63) (i64.const 0x4ed8aa4ae3418acb) (i64.const 0x5b9cca4f7763e373) (i64.const 0x682e6ff3d6b2b8a3))
(call $four_round (get_local $w8) (get_local $w9) (get_local $w10) (get_local $w11) (i64.const 0x748f82ee5defb2fc) (i64.const 0x78a5636f43172f60) (i64.const 0x84c87814a1f0ab72) (i64.const 0x8cc702081a6439ec))
(call $four_round (get_local $w12) (get_local $w13) (get_local $w14) (get_local $w15) (i64.const 0x90befffa23631e28) (i64.const 0xa4506cebde82bde9) (i64.const 0xbef9a3f7b2c67915) (i64.const 0xc67178f2e372532b))
(set_local $w0 (call $expand (get_local $w14) (get_local $w9) (get_local $w1) (get_local $w0)))
(set_local $w1 (call $expand (get_local $w15) (get_local $w10) (get_local $w2) (get_local $w1)))
(set_local $w2 (call $expand (get_local $w0) (get_local $w11) (get_local $w3) (get_local $w2)))
(set_local $w3 (call $expand (get_local $w1) (get_local $w12) (get_local $w4) (get_local $w3)))
(set_local $w4 (call $expand (get_local $w2) (get_local $w13) (get_local $w5) (get_local $w4)))
(set_local $w5 (call $expand (get_local $w3) (get_local $w14) (get_local $w6) (get_local $w5)))
(set_local $w6 (call $expand (get_local $w4) (get_local $w15) (get_local $w7) (get_local $w6)))
(set_local $w7 (call $expand (get_local $w5) (get_local $w0) (get_local $w8) (get_local $w7)))
(set_local $w8 (call $expand (get_local $w6) (get_local $w1) (get_local $w9) (get_local $w8)))
(set_local $w9 (call $expand (get_local $w7) (get_local $w2) (get_local $w10) (get_local $w9)))
(set_local $w10 (call $expand (get_local $w8) (get_local $w3) (get_local $w11) (get_local $w10)))
(set_local $w11 (call $expand (get_local $w9) (get_local $w4) (get_local $w12) (get_local $w11)))
(set_local $w12 (call $expand (get_local $w10) (get_local $w5) (get_local $w13) (get_local $w12)))
(set_local $w13 (call $expand (get_local $w11) (get_local $w6) (get_local $w14) (get_local $w13)))
(set_local $w14 (call $expand (get_local $w12) (get_local $w7) (get_local $w15) (get_local $w14)))
(set_local $w15 (call $expand (get_local $w13) (get_local $w8) (get_local $w0) (get_local $w15)))
(call $four_round (get_local $w0) (get_local $w1) (get_local $w2) (get_local $w3) (i64.const 0xca273eceea26619c) (i64.const 0xd186b8c721c0c207) (i64.const 0xeada7dd6cde0eb1e) (i64.const 0xf57d4f7fee6ed178))
(call $four_round (get_local $w4) (get_local $w5) (get_local $w6) (get_local $w7) (i64.const 0x06f067aa72176fba) (i64.const 0x0a637dc5a2c898a6) (i64.const 0x113f9804bef90dae) (i64.const 0x1b710b35131c471b))
(call $four_round (get_local $w8) (get_local $w9) (get_local $w10) (get_local $w11) (i64.const 0x28db77f523047d84) (i64.const 0x32caab7b40c72493) (i64.const 0x3c9ebe0a15c9bebc) (i64.const 0x431d67c49c100d4c))
(call $four_round (get_local $w12) (get_local $w13) (get_local $w14) (get_local $w15) (i64.const 0x4cc5d4becb3e42b6) (i64.const 0x597f299cfc657e2a) (i64.const 0x5fcb6fab3ad6faec) (i64.const 0x6c44198c4a475817))
;; store hash values
(i64.store offset=0 (get_local $ctx) (i64.add (i64.load offset=0 (get_local $ctx)) (get_global $a)))
(i64.store offset=8 (get_local $ctx) (i64.add (i64.load offset=8 (get_local $ctx)) (get_global $b)))
(i64.store offset=16 (get_local $ctx) (i64.add (i64.load offset=16 (get_local $ctx)) (get_global $c)))
(i64.store offset=24 (get_local $ctx) (i64.add (i64.load offset=24 (get_local $ctx)) (get_global $d)))
(i64.store offset=32 (get_local $ctx) (i64.add (i64.load offset=32 (get_local $ctx)) (get_global $e)))
(i64.store offset=40 (get_local $ctx) (i64.add (i64.load offset=40 (get_local $ctx)) (get_global $f)))
(i64.store offset=48 (get_local $ctx) (i64.add (i64.load offset=48 (get_local $ctx)) (get_global $g)))
(i64.store offset=56 (get_local $ctx) (i64.add (i64.load offset=56 (get_local $ctx)) (get_global $h))))
(func $sha512 (export "sha512") (param $ctx i32) (param $roi i32) (param $length i32) (param $final i32)
;; (result i32)
;; schema 208 bytes
;; 0..64 hash state
;; 64..80 number of bytes read across all updates (128bit)
;; 80..208 store words between updates
;; 208..216 init flag
(local $bytes_read i64)
(local $bytes_read_overflow i64)
(local $check_overflow i64)
(local $last_word i64)
(local $tail i64)
;; expanded message schedule
(local $w0 i64) (local $w1 i64) (local $w2 i64) (local $w3 i64)
(local $w4 i64) (local $w5 i64) (local $w6 i64) (local $w7 i64)
(local $w8 i64) (local $w9 i64) (local $w10 i64) (local $w11 i64)
(local $w12 i64) (local $w13 i64) (local $w14 i64) (local $w15 i64)
(set_local $bytes_read (i64.load offset=64 (get_local $ctx)))
(set_local $bytes_read_overflow (i64.load offset=72 (get_local $ctx)))
(set_local $tail (i64.add (i64.and (get_local $bytes_read) (i64.const 0x7f)) (i64.extend_u/i32 (get_local $length))))
;; load current block position
(set_local $check_overflow (get_local $bytes_read))
(set_local $bytes_read (i64.add (get_local $bytes_read) (i64.extend_u/i32 (get_local $length))))
(i64.store offset=64 (get_local $ctx) (get_local $bytes_read))
;; carry n > 64 bits for i128 length
(if (i64.lt_u (get_local $bytes_read) (get_local $check_overflow))
(then
(set_local $bytes_read_overflow (i64.add (get_local $bytes_read_overflow) (i64.const 1)))
(i64.store offset=72 (get_local $ctx) (get_local $bytes_read_overflow))))
(block $finish
(set_local $w0 (i64.load offset=80 (get_local $ctx)))
(set_local $w1 (i64.load offset=88 (get_local $ctx)))
(set_local $w2 (i64.load offset=96 (get_local $ctx)))
(set_local $w3 (i64.load offset=104 (get_local $ctx)))
(set_local $w4 (i64.load offset=112 (get_local $ctx)))
(set_local $w5 (i64.load offset=120 (get_local $ctx)))
(set_local $w6 (i64.load offset=128 (get_local $ctx)))
(set_local $w7 (i64.load offset=136 (get_local $ctx)))
(set_local $w8 (i64.load offset=144 (get_local $ctx)))
(set_local $w9 (i64.load offset=152 (get_local $ctx)))
(set_local $w10 (i64.load offset=160 (get_local $ctx)))
(set_local $w11 (i64.load offset=168 (get_local $ctx)))
(set_local $w12 (i64.load offset=176 (get_local $ctx)))
(set_local $w13 (i64.load offset=184 (get_local $ctx)))
(set_local $w14 (i64.load offset=192 (get_local $ctx)))
(set_local $w15 (i64.load offset=200 (get_local $ctx)))
(tee_local $tail (i64.sub (get_local $tail) (i64.const 128)))
(i64.const 0)
(i64.lt_s)
(br_if $finish)
(get_local $ctx)
(get_local $w0 )
(get_local $w1 )
(get_local $w2 )
(get_local $w3 )
(get_local $w4 )
(get_local $w5 )
(get_local $w6 )
(get_local $w7 )
(get_local $w8 )
(get_local $w9 )
(get_local $w10)
(get_local $w11)
(get_local $w12)
(get_local $w13)
(get_local $w14)
(get_local $w15)
(call $compress)
(loop $rest_of_input
(set_local $w0 (i64.load offset=0 (get_local $roi)))
(set_local $w1 (i64.load offset=8 (get_local $roi)))
(set_local $w2 (i64.load offset=16 (get_local $roi)))
(set_local $w3 (i64.load offset=24 (get_local $roi)))
(set_local $w4 (i64.load offset=32 (get_local $roi)))
(set_local $w5 (i64.load offset=40 (get_local $roi)))
(set_local $w6 (i64.load offset=48 (get_local $roi)))
(set_local $w7 (i64.load offset=56 (get_local $roi)))
(set_local $w8 (i64.load offset=64 (get_local $roi)))
(set_local $w9 (i64.load offset=72 (get_local $roi)))
(set_local $w10 (i64.load offset=80 (get_local $roi)))
(set_local $w11 (i64.load offset=88 (get_local $roi)))
(set_local $w12 (i64.load offset=96 (get_local $roi)))
(set_local $w13 (i64.load offset=104 (get_local $roi)))
(set_local $w14 (i64.load offset=112 (get_local $roi)))
(set_local $w15 (i64.load offset=120 (get_local $roi)))
(set_local $roi (i32.add (get_local $roi) (i32.const 128)))
(tee_local $tail (i64.sub (get_local $tail) (i64.const 128)))
(i64.const 0)
(i64.lt_s)
(if
(then
(i64.store offset=80 (get_local $ctx) (get_local $w0))
(i64.store offset=88 (get_local $ctx) (get_local $w1))
(i64.store offset=96 (get_local $ctx) (get_local $w2))
(i64.store offset=104 (get_local $ctx) (get_local $w3))
(i64.store offset=112 (get_local $ctx) (get_local $w4))
(i64.store offset=120 (get_local $ctx) (get_local $w5))
(i64.store offset=128 (get_local $ctx) (get_local $w6))
(i64.store offset=136 (get_local $ctx) (get_local $w7))
(i64.store offset=144 (get_local $ctx) (get_local $w8))
(i64.store offset=152 (get_local $ctx) (get_local $w9))
(i64.store offset=160 (get_local $ctx) (get_local $w10))
(i64.store offset=168 (get_local $ctx) (get_local $w11))
(i64.store offset=176 (get_local $ctx) (get_local $w12))
(i64.store offset=184 (get_local $ctx) (get_local $w13))
(i64.store offset=192 (get_local $ctx) (get_local $w14))
(i64.store offset=200 (get_local $ctx) (get_local $w15))
(br $finish)))
(get_local $ctx)
(get_local $w0 )
(get_local $w1 )
(get_local $w2 )
(get_local $w3 )
(get_local $w4 )
(get_local $w5 )
(get_local $w6 )
(get_local $w7 )
(get_local $w8 )
(get_local $w9 )
(get_local $w10)
(get_local $w11)
(get_local $w12)
(get_local $w13)
(get_local $w14)
(get_local $w15)
(call $compress)
(br $rest_of_input)))
(if (i32.eq (get_local $final) (i32.const 1))
(then
(set_local $tail (i64.and (get_local $bytes_read) (i64.const 0x7f)))
(set_local $last_word (i64.shl (i64.const 0x80) (i64.shl (i64.and (get_local $tail) (i64.const 0x7)) (i64.const 3))))
(block $pad_end
(block $13
(block $12
(block $11
(block $10
(block $9
(block $8
(block $7
(block $6
(block $5
(block $4
(block $3
(block $2
(block $1
(block $0
(block $15
(block $14
(block $switch
(i32.wrap/i64 (get_local $tail))
(i32.const 3)
(i32.shr_u)
(br_table $0 $1 $2 $3 $4 $5 $6 $7 $8 $9 $10 $11 $12 $13 $14 $15)))
(get_local $last_word)
(get_local $w14)
(i64.or)
(set_local $w14)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w15)
(i64.or)
(set_local $w15)
(set_local $last_word (i64.const 0))
;; compress
(get_local $ctx)
(get_local $w0)
(get_local $w1)
(get_local $w2)
(get_local $w3)
(get_local $w4)
(get_local $w5)
(get_local $w6)
(get_local $w7)
(get_local $w8)
(get_local $w9)
(get_local $w10)
(get_local $w11)
(get_local $w12)
(get_local $w13)
(get_local $w14)
(get_local $w15)
(call $compress)
(i64.store offset=64 (get_local $ctx) (get_local $bytes_read))
;; zero out words
(set_local $w0 (i64.const 0))
(set_local $w1 (i64.const 0))
(set_local $w2 (i64.const 0))
(set_local $w3 (i64.const 0))
(set_local $w4 (i64.const 0))
(set_local $w5 (i64.const 0))
(set_local $w6 (i64.const 0))
(set_local $w7 (i64.const 0))
(set_local $w8 (i64.const 0))
(set_local $w9 (i64.const 0))
(set_local $w10 (i64.const 0))
(set_local $w11 (i64.const 0))
(set_local $w12 (i64.const 0))
(set_local $w13 (i64.const 0))
(set_local $w14 (i64.const 0))
(set_local $w15 (i64.const 0)))
(get_local $last_word)
(get_local $w0)
(i64.or)
(set_local $w0)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w1)
(i64.or)
(set_local $w1)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w2)
(i64.or)
(set_local $w2)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w3)
(i64.or)
(set_local $w3)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w4)
(i64.or)
(set_local $w4)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w5)
(i64.or)
(set_local $w5)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w6)
(i64.or)
(set_local $w6)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w7)
(i64.or)
(set_local $w7)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w8)
(i64.or)
(set_local $w8)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w9)
(i64.or)
(set_local $w9)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w10)
(i64.or)
(set_local $w10)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w11)
(i64.or)
(set_local $w11)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w12)
(i64.or)
(set_local $w12)
(set_local $last_word (i64.const 0)))
(get_local $last_word)
(get_local $w13)
(i64.or)
(set_local $w13)
(set_local $last_word (i64.const 0)))
;; load upper limb of 128bit length
(get_local $bytes_read)
(i64.const 61)
(i64.shr_u)
(get_local $bytes_read_overflow)
(i64.const 3)
(i64.shr_u)
(i64.add)
(call $i64.bswap)
(set_local $w14)
;; load lower limb of 128bit length
(set_local $w15 (call $i64.bswap (i64.mul (get_local $bytes_read) (i64.const 8))))
(get_local $ctx)
(get_local $w0)
(get_local $w1)
(get_local $w2)
(get_local $w3)
(get_local $w4)
(get_local $w5)
(get_local $w6)
(get_local $w7)
(get_local $w8)
(get_local $w9)
(get_local $w10)
(get_local $w11)
(get_local $w12)
(get_local $w13)
(get_local $w14)
(get_local $w15)
(call $compress)
(get_local $ctx)
(i64.load offset=0 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=0)
(get_local $ctx)
(i64.load offset=8 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=8)
(get_local $ctx)
(i64.load offset=16 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=16)
(get_local $ctx)
(i64.load offset=24 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=24)
(get_local $ctx)
(i64.load offset=32 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=32)
(get_local $ctx)
(i64.load offset=40 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=40)
(get_local $ctx)
(i64.load offset=48 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=48)
(get_local $ctx)
(i64.load offset=56 (get_local $ctx))
(call $i64.bswap)
(i64.store offset=56)))))