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1. Here is the code to do a recursive factorial function in MIPS assembly. Changing it to do Fibonacci is left as an exercise to the reader. (Note: delay slots aren't optimized in this code, as it's designed for readability.).
2. In the Mars Messages text area will be highighted and the corresponding erroneous instruction will be selected in the text editor. In addition, you can click on any error message in the Mars Messages text area to select the corresponding erroneous instruction in the text editor. The first feature does not select in every situation (such as when.

James Larus' article (pdf) describes macros for MIPS, however, his SPIM only implements a subset of the assembly language, that doesn't include macros. Mars has recently included macros, so you can use them, however that leaves me with a problem, because mipsmark relies on spim.

MIPS Assembler and Runtime Simulator

What's new in MARS 3.6:

• We've finally implemented the most requested new feature: memory and register cells will be highlighted when written to during timed or stepped simulation! The highlighted memory/register cell thus represents the result of the instruction just completed. During timed or stepped execution, this is NOT the highlighted instruction. During back-stepping, this IS the highlighted instruction. The highlighted instruction is the next one to be executed in the normal (forward) execution sequence.
• In conjunction with cell highlighting, we've added the ability to customize the highlighting color scheme and font. Select Highlighting in the Settings menu. In the resulting dialog, you can select highlight background color, text color, and font for the different runtime tables (Text segment, Data segment, Registers). You can also select them for normal, not just highlighted, display by even- and odd-numbered row but not by table.
• Cool new Labels Window feature: the table can be sorted in either ascending or descending order based on either the Label (alphanumeric) or the Address (numeric) column. Just click on the column heading to select and toggle between ascending (upright triangle) or descending (inverted triangle). Addresses are sorted based on unsigned 32 bit values. The setting persists across sessions.
• The Messages panel, which includes the Mars Messages and Run I/O tabs, now displays using a mono-spaced (fixed character width) font. This facilitates text-based graphics when running from the IDE.

MARS stands for MIPS Assembler and Runtime Simulator and is a lightweight interactive development environment (IDE) for programming in MIPS assembly language, intended for educational-level use with Patterson and Hennessy's Computer Organization and

Filed under

MARS 3.6

Mars Mips Macros

Mars Mips Assembly

runs on:

Linux

filename:

Mars.jar

main category:

Text Editing&Processing

developer:

visit homepage