2022-09-16 10:12:21 -07:00
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global ripemd:
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JUMPDEST
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// stack: retdest
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PUSH 0xC3D2E1F0
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PUSH 0x10325476
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PUSH 0x98BADCFE
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PUSH 0xEFCDAB89
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PUSH 0x67452301
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// stack: 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0, retdest
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process:
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JUMPDEST
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// stack: a , b, c, d, e, count, retdest
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%flip_bytes_u32
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// stack: a', b, c, d, e, count, retdest
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SWAP1
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%flip_bytes_32
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%shl_const(32)
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OR
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// stack: b' a', c, d, e, count, retdest
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SWAP1
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%flip_bytes_32
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%shl_const(64)
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OR
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// stack: c' b' a', d, e, count, retdest
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SWAP1
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%flip_bytes_32
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%shl_const(96)
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OR
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// stack: d' c' b' a', e, count, retdest
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SWAP1
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%flip_bytes_32
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%shl_const(96)
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OR
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// stack: e' d' c' b' a', count, retdest
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SWAP2
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SWAP1
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POP
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// stack: retdest, e'd'c'b'a'
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JUMP
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2022-09-16 19:18:26 -07:00
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/// def padlength(count):
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/// x = 56 - (count // 8) % 64
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/// return x + 64*(x < 9)
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%macro padlength
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// stack: count
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%div_const(8)
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// stack: count // 8
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%mod_const(64)
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// stack: (count // 8) % 64
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PUSH 56
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SUB
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// stack: x = 56 - (count // 8) % 64
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DUP1
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%lt_const(9)
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// stack: x < 9 , x
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%mul_const(64)
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// stack: 64*(x < 9) , x
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ADD
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// stack: 64*(x < 9) + x
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%endmacro
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