This Compiler can translate MiniJava into K210 RISC-V assembly.

MiniJava is a subset of Java. The meaning of a MiniJava program is given by its meaning as a Java program.
BNF for MiniJava
Syntax alternative source Tufts
Syntax alternative source UCR
MiniJava-typesystem

If the syntax of the input MiniJava program is not correct, the Compiler will report an exception. Although common IDEs cannot check for MiniJava syntax correctness, the correct MiniJava program should be able to run in Java properly.

K210 is a RISC-V Dual Core 64bit chip for AI+IOT. It is widely used in the development board of embedded system.
RISC-V Assembly can run on K210 by using RISC-V GNU Toolchain.
If you are interested in my development environment, please refer to this tutorial. UART is used for input and output on the development board.

minijava-to-k210-riscv-compiler.jar is written by using jdk1.8.0_101.
JRE version 1.8+ should be able to execute minijava-to-k210-riscv-compiler.jar properly.
JRE 15.0.1 can execute it properly.

If you would like to print RISC-V assembly to terminal,
java -jar minijava-to-k210-riscv-compiler.jar < test.java

If you would like to print RISC-V assembly to file test.s,
java -jar minijava-to-k210-riscv-compiler.jar < test.java > test.s

k210asms & k210out_pics:
The RISC-V assembly files in k210asms are compiled from the corresponding MiniJava files in testcases.
The pictures in k210out_pics are the serial communication result of the corresponding RISC-V assembly files in k210asms.

This project is based on the RISC-V version homework of UCLA CS132. The project contains four parts to form a compiler pipeline: [Type Checker] -> [Translate to Sparrow] -> [Translate to SparrowV (Register Allocation)] -> [RISC-V assembly]. In the original homework, the target language of the last step is Venus RISC-V assembly.

The project is formed by modifying the target language of the last step to K210 RISC-V assembly. This tutorial records the steps to complete the project.

The copyright of the content in the folder testcases and cs132.jar belongs to Professor Palsberg.

For Academic Integrity, this is NOT a open source project, and the file minijava-to-k210-riscv-compiler.jar is highly obfuscated.
(Professor Palsberg spent a lot of energy on the development of the RISC-V version homework for UCLA CS132 Compiler Construction, which is a CS capstone, so I try to protect the effectiveness of the homework here.)