FrankBuss

; comppile with ACME (https://sourceforge.net/projects/acme-crossass/ ) 
; acme -f cbm -o test.prg test.asm
;
; then start in the emulator:
; x16emu -run test.prg

*=$0801

        !byte $0b,$08,$01,$00,$9e,$32,$30,$36,$31,$00,$00,$00

FrankBuss

VPOKE4,0,33
MON
A0400     SEI
          LDA #$04
          STA $9F20
          LDA #$02
          STA $9F21
          LDA #$00
          STA $9F22
          STA $9F23

FrankBuss

10 REM ADDRESS 12:5
20 VPOKE 4, $800, 0
30 REM ADDRESS 16:13 (STARTING AT $10000) AND 8 BPP MODE
40 VPOKE 4, $801, $88
50 REM X COORDINATE 7:0
60 VPOKE 4, $802, 220
70 REM X COORDINATE 9:8
80 VPOKE 4, $803, 0
90 REM Y COORDINATE 7:0
100 VPOKE 4, $804, 55

FrankBuss

#!/usr/bin/python3

import pyaudio
import numpy as np
import sys
import time
import math

p = pyaudio.PyAudio()

FrankBuss

#/usr/bin/python3

# play a sequence of beeps
# based on https://stackoverflow.com/a/27978895/3210924

import pyaudio
import numpy as np
from numpy import zeros
import sys
import time

FrankBuss

-- max buffer length in seconds
length = 10

addLabel(50, 125, "Input", 20)
addLabel(50, 165, "Trigger", 20)
addLabel(50, 205, "Delay", 20)
addLabel(190, 125, "Output", 20)
input = addInput(20, 120)
trigger = addInput(20, 160)
delay = addInput(20, 200)

FrankBuss

/*
See https://gitlab.com/nedopc/npc5/blob/master/emu-rv32i.c for the latest version, with more features and less bugs :-)

RISCV emulator for the RV32I architecture
based on TinyEMU by Fabrice Bellard, see https://bellard.org/tinyemu/
stripped down for RV32I only, all "gotos" removed, and fixed some bugs for the compliance test
by Frank Buss, 2018

Requires libelf-dev:

FrankBuss

// set these fuse bits to 0:
// CKDIV8, SUT0, CKSEL3, CKSEL2, and CKSEL0

// the CPU clock is 31250 Hz
#define F_CPU 31250

#include <avr/io.h>
#include <avr/power.h>
#include <util/delay.h>

FrankBuss

# create a NAND lookup table

#!/usr/bin/python3
import sys

for i in xrange(256):
    if i % 16 == 0:
        sys.stdout.write("    .db ") 
    
    # PB1 input

FrankBuss

; ATTiny25 implementation of a NAND
; PB1 and PB2 is input, with pullups, and PB0 is output

; fuse settings: disable CKDIV8 for 8 MHz clock

start:
    ; set PB0 as output, all other pins as input
    ldi r20, 1
    out DDRB, r20