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use ashr from nim-stint/#76

This commit is contained in:
andri lim 2019-05-11 21:44:06 +07:00 committed by zah
parent 51e23fa582
commit 929b28b133
1 changed files with 3 additions and 8 deletions
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11
nimbus/vm/interpreter/opcodes_impl.nim
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@ -906,19 +906,14 @@ op shrOp, inline = true, shift, num:
op sarOp, inline = true:
let shiftLen = computation.stack.popInt().safeInt
let x = computation.stack.popInt()
#let num = cast[Int256](computation.stack.popInt())
let num = cast[Int256](computation.stack.popInt())
if shiftLen >= 256:
#if num.isNegative:
if cast[Int256](x).isNegative:
if num.isNegative:
push: cast[Uint256]((-1).i256)
else:
push: 0
else:
# ashr depends on nim-stint/#76
# push: cast[Uint256](ashr(num, shiftLen))
# while waiting for stint/#76 merged, we use this workaround
push: (x shr shiftLen) or (((0-(x shr 255)) shl 1) shl (255-shiftLen))
push: cast[Uint256](ashr(num, shiftLen))
op extCodeHash, inline = true:
let address = computation.stack.popAddress()