Appendices

A. Complete Source Code

• terminal.s - All code to set up timers, LCD, and issue first START signal for ADC
• int_handler.s - Interrupt Handler code for IRQ1 (Nintendo 8) and IRQ7 (ADC EOC#)
• effects.c - Effects processing code
• LCD Code
  • mainc.c - Did main setup, displayed splash screen, and loaded first half of the menu
  • mario.c - Handled input from IRQ1 ISR to arrange onscreen indicators appropriately
  • showWelcome.c - Displayed the welcome screen on the LCD
  • showEchoChorus.c - Displayed the words "Echo" and "Chorus" on two separate lines
  • showFlangeDistort.c - Displayed the words "Flange" and "Distortion" on two separate linse
  • putChar.s - Assembly code to put one character on the LCD
  • putInstr.s - Assembly code to execute one instruction on the LCD
  • clearDisplay.s - Assembly code to clear the LCD display

High Level Design

Hardware Design