Our script will generate MIF files for both sections, which correspond to the data memory and the instruction memory, respectively. In order to show you what the program looks like, open this file in a text editor: gedit my_program.asm As you will see, this program is composed of a data section and a text (code) section. For our first program, copy the following file into your home directory:Ģ cp /usr/local/3rdparty/csce611/benchmarks/my_program.asm 3. Open a terminal and copy the file GenMIF.sh from the directory /usr/local/3rdparty/ csce611/cpu_support_files/ to your design directory. In this tutorial, we will introduce you to MIF file generation in the following example. In this class, we provide you with a script file to automate generate MIF file from MIPS assembly codes. You can also use a Hexadecimal Intel-Format File (.hex) to provide memory initialization data. The MIF file serves as an input file for memory initialization in the Quartus compiler and simulator. This file is used during Quartus project compilation and/or simulation. For the usage of the simulator, please check the MARS tutorial at MIF Files A memory Initialization File (.mif) is an ASCII text file (with the extension.mif) that specifies the initial content of a memory block (CAM, RAM, or ROM), that is, the initial values for each address. You can also download MARS from or get a copy at your home directory. Now we can invoke the tool by typing mars in the terminal.
Now log out and log back into your workstation. In the text editor, add the following line to the end of file: alias mars='java -jar /usr/local/3rdparty/csce611/mars/mars.jar' Save the file and close the editor. We have installed MARS in a shared directory, but in order to avoid the need to specify its entire path, you can specify a UNIX alias to make it more convenient to run MARS. MARS is an improved version of the SPIM simulator that you may have used in CSCE 212.
For this, we will use a Java-based MIPS simulator called MARS. 1 Generating MIF files Introduction In order to load our handwritten (or compiler generated) MIPS assembly problems into our instruction ROM, we need a way to assemble them into machine language and then save these machine language programs in a text file where the binary machine instructions are represented as a sequence of ASCII hexadecimal values.
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