I forgot to say that this code is in src/cmd/internal/obj/arm64/asm7.go
在2020年8月28日星期五 UTC+8 下午4:45:24 写道：
> case AVADD:
> return 7<<25 | 1<<21 | 1<<15 | 1<<10
>
> case AVAND:
> return 7<<25 | 1<<21 | 7<<10
>
> case AVAND:
> return 7<<25 | 1<<21 | 7<<10
>
> case AVCMEQ:
> return 1<<29 | 0x71<<21
case AVADD:
return 7<<25 | 1<<21 | 1<<15 | 1<<10
case AVAND:
return 7<<25 | 1<<21 | 7<<10
case AVAND:
return 7<<25 | 1<<21 | 7<<10
case AVCMEQ:
return 1<<29 | 0x71<<21 | 0x23<<10
For the AVADD instruction, how is 7,1,1,1 determined? How is 25,21,15,10
determined? What do they mean? Why are
Some of my CLs are tagged with this, and I don't know why? Can someone
please tell me?
https://go-review.googlesource.com/c/go/+/244778
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The modification in this patch, why is the performance after shifting 5
bits to the right better than the performance of shifting 12 bits to the
right? Can someone tell me something for me?
https://go-review.googlesource.com/c/go/+/245177
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The modification in this patch, why is the performance after shifting 5
bits to the right better than the performance of shifting 12 bits to the
right? Can someone tell me something for me?
https://go-review.googlesource.com/c/go/+/245177
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You received this message because you are
I added the issue in golang/issue. I have some time now. I want to work for
you, but I don't know how to do it.
在2020年6月11日星期四 UTC+8 下午12:37:30 写道：
> > Why has this code called Joe Tsai never been merged?
>
> I am Joe Tsai and the reason why my bzip2 encoder implementation has not
> been
Constant definition in token.go:
literalType = 0 << 30
The only use I see is:
- *func (t token) literal() uint32 { return uint32(t - literalType) }*
-
*func literalToken(literal uint32) token { return token(literalType +
literal) } *
I don't know what the purpose of this writing
