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| author | Arne Döring <arne.doering@gmx.net> | 2019-02-05 09:31:37 +0100 |
|---|---|---|
| committer | Andreas Rumpf <rumpf_a@web.de> | 2019-02-05 09:31:37 +0100 |
| commit | 824f39b32e04e31514aade50da38516b8fadac12 (patch) | |
| tree | d35bb7ae0e67c16f9cc5879f99eda7b7c79f59bb /compiler/vm.nim | |
| parent | bcb5995ddf1228a53e01c9947e5229994e1bf364 (diff) | |
| download | Nim-824f39b32e04e31514aade50da38516b8fadac12.tar.gz | |
Vm bitops fixes (#10520)
Diffstat (limited to 'compiler/vm.nim')
| -rw-r--r-- | compiler/vm.nim | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/vm.nim b/compiler/vm.nim index e95a491fd..71fd2722b 100644 --- a/compiler/vm.nim +++ b/compiler/vm.nim @@ -1264,6 +1264,11 @@ proc rawExecute(c: PCtx, start: int, tos: PStackFrame): TFullReg = of opcNarrowU: decodeB(rkInt) regs[ra].intVal = regs[ra].intVal and ((1'i64 shl rb)-1) + of opcSignExtend: + # like opcNarrowS, but no out of range possible + decodeB(rkInt) + let imm = 64 - rb + regs[ra].intVal = ashr(regs[ra].intVal shl imm, imm) of opcIsNil: decodeB(rkInt) let node = regs[rb].node |