Re: [PATCH v5 08/11] target/loongarch: Reject la64-only instructions in la32 mode

[gaosong]

在 2023/8/11 下午11:18, Richard Henderson 写道:
> On 8/11/23 01:12, gaosong wrote:
> > > +TRANS_64(sra_d, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_sra_d)
> > >   TRANS(rotr_w, gen_rrr, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_rotr_w)
> > TRANS_64(rotr_w, ...)
> ...
> > >   TRANS(rotri_w, gen_rri_v, EXT_NONE, EXT_NONE, gen_rotr_w)
> > TRANS_64(rotri_w, ...)
> >
> > I see the manual from https://www.loongson.cn/download/index
> >
> > insn cpucfg also not support on la32.
>
>
> I see all 3 of these, ROTR.W, ROTRI.W and CPUCFG listed in Table 2 at
>
> https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#overview-of-basic-integer-instructions 

I see. These are not listed in [1] (the LA32 Lite Edition Manual),  It 
seems that the LA32 Lite Edition drops some instructions.


[1]:
https://www.loongson.cn/uploads/images/2023041918122813624.%E9%BE%99%E8%8A%AF%E6%9E%B6%E6%9E%8432%E4%BD%8D%E7%B2%BE%E7%AE%80%E7%89%88%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C_r1p03.pdf

Thanks.
Song Gao