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fe500a6a79
* Productionize: move protocols top-level vs backend * fix path * import fix * the last one * benches as well
67 lines
1.9 KiB
Nim
67 lines
1.9 KiB
Nim
# Constantine
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# Copyright (c) 2018-2019 Status Research & Development GmbH
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# Copyright (c) 2020-Present Mamy André-Ratsimbazafy
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at http://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at http://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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std/[unittest, times, math],
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../../constantine/backend/config/common,
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../../constantine/backend/primitives,
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../../helpers/prng_unsafe
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suite "Extended precision bugs":
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test $uint32 & " sanity check":
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let a = ct(0x0000_0001, uint32)
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let b = ct(0x0000_0001, uint32)
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let c = ct(0x0000_0001, uint32)
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var hi, lo: Ct[uint32]
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muladd1(hi, lo, a, b, c)
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check:
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hi.uint32 == 0'u32
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lo.uint32 == 0x0000_0002'u32
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test $uint32 & " muladd1 - #61-1":
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let a = ct(0x8000_0001, uint32)
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var t = ct(0xE35C_5451, uint32)
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var C: Ct[uint32]
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muladd1(C, t, a, a, t)
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check:
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C.uint32 == 0x4000_0001'u32
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t.uint32 == 0xe35c_5452'u32
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test $uint32 & " muladd1 - #61-2":
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let a = ct(0xFFFF_FFFE, uint32)
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var t = ct(0x0000_0004, uint32)
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var C: Ct[uint32]
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muladd1(C, t, a, a, t)
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check:
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C.uint32 == 0xffff_fffc'u32
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t.uint32 == 0x0000_0008'u32
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test $uint32 & " muladd1 - #61-3":
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let a = ct(0x1480_0020, uint32)
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var t = ct(0x5454_109E, uint32)
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var C: Ct[uint32]
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muladd1(C, t, a, a, t)
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check:
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C.uint32 == 0x01a4_4005'u32
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t.uint32 == 0x7454_149e'u32
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test $uint32 & " muladd1 - #62":
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let a = ct(0x7FEF_FFFF, uint32)
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var t = ct(0x67A4_B24C, uint32)
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var C: Ct[uint32]
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muladd1(C, t, a, a, t)
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check:
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C.uint32 == 0x3ff0_00ff'u32
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t.uint32 == 0x67c4_b24d'u32
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