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Spike tutorial

前言

spike 是 risc-v 的模擬器，讓 risc-v 的指令可以跑在任意的機器上，而不需要處理器有支援。本文主要在於紀錄如何在spike原有的基礎上，加上新的指令，以及如何測試新的指令。

大致上的 spike 流程為

c source code -> riscv-gcc -> riscv object code -> spike -> pk -> run on cpu

Note

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XZ

Compress a file (filename.sql will be replaced by filename.sql.xz)

xz filename.sql

Uncompress file (filename.sql.xz will be replaced by filename.sql)

To forward X11 from inside a docker container to a host running macOS

Install XQuartz: https://www.xquartz.org/
Launch XQuartz. Under the XQuartz menu, select Preferences
Go to the security tab and ensure "Allow connections from network clients" is checked.
Run xhost + ${hostname} to allow connections to the macOS host *
Setup a HOSTNAME env var export HOSTNAME=`hostname`*
Add the following to your docker-compose:

 environment:

Set the default size for new Docker for Mac disk images

UPDATE: The instructions here are no longer necessary! Resizing the disk image is now possible right from the UI since Docker for Mac Version 17.12.0-ce-mac49 (21995).

If you are getting the error: No space left on device

Configuring the qcow2 size cap is possible in the current versions:

# my disk is currently 64GiB

	#include <stdio.h>
	#include <string.h>
	#include <stdint.h>
	#include <stdlib.h>
	#include <sys/time.h>
	#include <locale.h>

	#define NUMBYTES (102410241024)

	char bytes[NUMBYTES];

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	Hi All!

	I've recently launched a tool that wraps many of the commands here with a user interface. This desktop application is currently available for macOS. There's a roadmap outlining planned features for the near future.
	Feel free to request any features you'd like to see, and I'll prioritize them accordingly.
	One of the most important aspects of this application is that every command executed behind the scenes is displayed in a special log section. This allows you to see exactly what’s happening and learn from it.

	Here's the link to the repository: https://github.com/Pulimet/ADBugger

	App Description:
	ADBugger is a desktop tool designed for debugging and QA of Android devices and emulators. It simplifies testing, debugging, and performance analysis by offering device management, automated testing, log analysis, and remote control capabilities. This ensures smooth app performance across various setups.

	sudo apt install binutils

	cd ~/src/an_autotools_project
	export CXXFLAGS='-fuse-ld=gold'
	export CFLAGS='-fuse-ld=gold'
	./configure
	make -j4 # no longer wait for linking! =D

	# gcc doesn't support -fuse-ld=lld http://gcc.gnu.org/ml/gcc-patches/2016-07/msg00145.html :(

	## Basic Options ##
	# 下載目錄
	dir=/mnt/usb
	# 進度紀錄
	input-file=/mnt/usb/.aria2/aria2.session
	# 同時進行任務數
	max-concurrent-downloads=10
	# 斷線續傳
	continue=true