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P3 Assembly

by rgcv ST3

A Sublime Text 3 assembly language syntax

Details

  • 1.0.1
  • github.​com
  • github.​com
  • 2 months ago
  • 29 minutes ago
  • 2 months ago

Installs

  • Total 333
  • Win 173
  • OS X 58
  • Linux 102
Oct 17 Oct 16 Oct 15 Oct 14 Oct 13 Oct 12 Oct 11 Oct 10 Oct 9 Oct 8 Oct 7 Oct 6 Oct 5 Oct 4 Oct 3 Oct 2 Oct 1 Sep 30 Sep 29 Sep 28 Sep 27 Sep 26 Sep 25 Sep 24 Sep 23 Sep 22 Sep 21 Sep 20 Sep 19 Sep 18 Sep 17 Sep 16 Sep 15 Sep 14 Sep 13 Sep 12 Sep 11 Sep 10 Sep 9 Sep 8 Sep 7 Sep 6 Sep 5 Sep 4 Sep 3 Sep 2
Windows 1 1 3 2 4 4 4 7 3 5 4 6 2 4 4 6 3 4 2 5 7 6 4 6 4 2 7 1 1 3 4 3 4 6 5 4 0 1 3 3 3 3 0 2 0 3
OS X 0 2 0 0 0 0 0 2 1 1 0 1 2 1 2 2 0 1 3 4 2 2 1 1 0 0 1 2 1 4 2 0 1 0 1 1 1 0 2 3 1 0 0 3 0 1
Linux 1 5 2 2 4 2 0 4 3 5 5 1 1 3 3 1 1 0 0 4 1 2 1 1 3 0 1 0 2 3 2 0 4 3 2 5 1 0 1 1 1 1 0 2 0 0

Readme

Source
raw.​githubusercontent.​com

P3 Assembly

A Sublime Text 3 assembly language syntax

Sidenote: Designed to accomodate the syntax of the P3 processor's assembly language, this theme is in no way a finished product. Feel free to contribute to the project or submit an issue detailing a problem with the project or what have you.

Still on a tangent, a color theme is not supplied with this package. It is purely a syntax for the P3 assembly language.

The P3 Processor

The P3 is a 16-bit word architecture processor used at Lisbon University's Superior Technical Institute (Instituto Superior Técnico da Universidade de Lisboa, IST@UL) in the Introduction to Computer Architecture subject of the Computer Science and Engineering BSc degree.

In practice, during the course's subject, a project is tailored for the first year's first semester students (freshmen, hopefully). Usually, or at least thus far, the project consists of creating a well-known game (or should I say recreating) using the P3 processor simulator, a Java application capable of simulating the assembled code to be loaded onto the processor itself on a later stage, during a demo or for testing purposes, since the simulator's.. not very feasible or reliable, if I may.

Some specifications

A few of the processor's specifications are listed below.

1. Registers

  • R0 - R7 - General use registers (R0 holds the constant 0)
  • PC - The program counter
  • SP - The stack pointer
  • RE - State register with 5 state bits, EZCNO, where
    • E: Enable interrupts
    • Z: Zero
    • C: Carry
    • N: Negative
    • O: Overflow

2. Memory

  • Address space: 64K words
  • Word size: 16 bits

3. I/O

  • I/O Addresses: Memory Mapped I/O from FF00h upward
  • Text Window: FFFCh - FFFFh
  • Interruptors (or switches): FFF9h
  • LEDs: FFF8h
  • LCD: FFF4h - FFF5h
  • 7-Segment display: FFF0h - FFF3h
  • Timer: FFF6h - FFF7h

4. Interrupts

  • Interrupt mask: FFFAh
  • Interrupt vector base: FE00h

More information can be found in the P3 processor simulator manual here (in portuguese).

Example Screenshot (using Monokai)

p3assembly-monokai