p3sim hacks

p3sim is a simulator used in the Computer Architecture course. When I was doing the course and its project, I wanted to speed up some parts of the assemble-load-run testing loop, and I ended up hacking the simulator interface to add some features. So, what follows is the result:

Old stuff alert: Please note the information in this section is old (last change was made 2009 Spring). It is kept for archival purposes.

(These changes have been included in the release which was made available this semester (2009 Spring).)

Direct links (latest release):

• p3sim (diff -u)
• p3sim (RNL version)

All releases (including the latest):

• p3sim - 2008-06-02 (diff -u)
• p3sim - 2008-06-02 (RNL version)
• p3sim - 2008-05-23
• p3sim - 2008-05-23 (RNL version)

Diff's show the difference between the modified versions and the official one. The RNL version provides readable text in RNL computers, because of the known problem with fonts there. Both versions (rnl and non-rnl) provide the following enhancements.

List of features available in 2008-05-23:

• Command-line switches for usage information and ROM loading.
• Debug menu
  • Now includes a memory reset function.
  • In the dialog for writing memory, using -1 as address results in filling all the memory with the specified value.
  • In the same dialog: decimal handling code - if you enter a d-terminated number, it will be converted from decimal to hexadecimal.
• Keystroke to quit: C-q
• Keystroke to do a step: C-i
• Dialog to request n steps to be done at once ("Comandos" > "Instruções...")

2008-06-02 fixes a bug with the decimal handling code (it would only work when filling the memory (address == -1)), and adds binary handling code.