Re: [Qemu-devel] QEMU as ISS (Instruction Set Simulator)

[Aleksandar Markovic]

On Tue, Aug 20, 2019 at 12:12 PM 立 <address@hidden> wrote:

> I am working on a project that requires me to modify the ISA of the MIPS
> target.


L.,

How is it going?

Aleksandar



> I have been staring at the source code for about a week, but found it
> really difficult due to me being a young rookie and the sparse comments.
> Specifically, I need to extend MIPS, by adding some new instructions and
> new CPU registers to the current architecture, and that sounds really easy.
> I think the place for me to look at should be at the directory
> ${qemu_root}/target/mips/. With a MIPS Instruction Set Manual Release 6
> handy, I have difficulty finding the source code where the ISA resides. Is
> it in op_helper.c? Or translate.c? Any guidance would be really
> appreciated. Thank you very much in advance.
>
>
> Cheers,
> L.