Nexus

Nexus is an interpreter for a custom programming language, made for Xilinx's Nexys A7 FPGA.

Design

Language syntax

The syntax is very simple and supports programming some of Nexys A7's outputs, such as LEDs.

Syntax: [INSTRUCTION] (PARAMETERS)

LEDs

Syntax: LED [id] [state]

• state is either ON or OFF

Examples:

LED  0 ON
LED  1 OFF

RGB LEDs

Syntax: CLED [id] [state]

• state is either ON, OFF or R (red), G (green), B (blue)
• if state is ON, color is set to white
• if state == OFF, led turns off

Examples:

CLED 1  G
CLED 0 ON
CLED 1 OFF 

Background color

Syntax: CLRS [color]

• color is a 1-char hex value (0-9, A-F) - currently only works for values 0-3

Examples:

CLRS 0
CLRS 3

License

The project is licensed under the MIT license.