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Re: Custom logic gates on user space emulation

From: burak sarac
Subject: Re: Custom logic gates on user space emulation
Date: Wed, 4 Dec 2019 12:49:44 +0100

Hello Alex,
 Thank you for your response, if I am on the right path I want to add
hadamard or one of pauli gate to gnu assembler then I want to run this
extended GAS via qemu using user space emulation. i.e.
The idea is there are many quantum computer emulators i.e. here
https://www.quantiki.org/wiki/list-qc-simulators , yet I couldnt find
any one of them uses qemu. For beginning I wanted to try to port
libquantum hadamard impl.  There is https://github.com/Qiskit/openqasm
but source is not present.


burak sarac <address@hidden> writes:

> Hello All,
>  Currently I am studying qemu and I want to figure out how I can use
> custom logic gates on user space emulation.  I am searching very basic
> 'hello world' kind of tutorial or some resources to i.e. adding left
> or LOR : 1 | 0 = 1 but 0 | 1 = 0 to existing x86 arch
> ((https://en.wikibooks.org/wiki/X86_Assembly/Logic) ?).

It's not clear what you want to do. Are you looking to extend an
existing instruction set with additional custom instructions? Can you
explain why you want to do this?

> What I want to
> try is run this extended x86 version with qemu user space emulation.
> Do I need a custom toolchain also for this? I found this book:
> https://subscription.packtpub.com/book/hardware_and_creative/9781783289455/1/ch01lvl1sec15/generating-a-custom-toolchain-become-an-expert

For testing you don't need a custom toolchain - you can use inline
assembly with data statements to insert your custom instructions into a
program. Again it depends on what your eventual aim is here.

> Sorry for my ignorance in case it is totally irrelevant and I would
> appreciate any guidance! Or pseudo kind of road map for me!
> Thank you & have a nice day
> Burak

Alex Bennée

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