RARS, the RISC-V Assembler, Simulator, and Runtime, will assemble and simulate the execution of RISC-V assembly language programs. Its primary goal is to be an effective development environment for people getting started with RISC-V.
Original repo: rars
In case it becomes unavailable, here's a fork: rars
RARS made into macOS app using jpackage on original RARS jar distribution:
jpackage --input <folder with rars.jar in it> \
--main-jar rars.jar \
-n RARS \
--main-class rars.Launch \
--app-version 1.6 \
--icon ./RARS.icns \
--mac-package-identifier "RARS" \
--mac-package-name "RARS" \
--mac-app-category "public.app-category.developer" \
--java-options "-Djpackage.app-version=1.6.0 \
-Dapple.laf.useScreenMenuBar=true \
-Duser.dir=/Contents -Xdock:name=RARS \
-Dcom.apple.smallTabs=true \
-Dapple.awt.application.name=RARS \
-Dcom.apple.macos.useScreenMenuBar=true \
-Dcom.apple.macos.use-file-dialog-packages=true" \
--runtime-image #<JRE distribution path. I used AZUL OpenJDK Builds: https://www.azul.com/downloads/#zulu>