Documentation for XuanTie Instruction Extension

[tirumalnaidu]

Please provide the documentation for XIE and can anyone verify whether Vector instructions are supported by openc910

[avianes]

Hi,

Please provide the documentation for XIE

XIE is documented in Chinese in doc/ #14 (comment)

anyone verify whether Vector instructions are supported by openc910

No it's not #1 (comment)

[QiaowenYoung]

I guess the V extension is supported since I just found some code for vector instructions decoding (like vadd), but they haven't released the doc on how to verify it.

[hyc]

Other docs say the C910, like C906 and C920, supports v0.7.1 of the vector extension spec. https://github.com/riscv/riscv-v-spec/releases/tag/0.7.1 But mainstream compilers are only targeting v1.0 of this spec. Seems you must use T-head's toolchain for now. https://github.com/T-head-Semi/xuantie-gnu-toolchain