Re: [PATCH] Semihost SYS_READC implementation (v4)

[Keith Packard]

Peter Maydell <address@hidden> writes:

> That defines the instruction sequence used to make a semihosting
> call, but not the specification of what the calls are:
>  * what call numbers perform which functions
>  * how arguments are passed to the call (registers? parameter
>    blocks in memory? other?)
>  * the semantics of each function supported (number of arguments,
>    behaviour, error handling)
>
> That's really what I had in mind by the overall semihosting spec.

There isn't anything more provided by the RISC-V foundation at this
point. I'm not sure what else they *should* provide as the goal is to
match the ARM design, which does specify all of the above.

-- 
-keith

signature.asc
Description: PGP signature