piquan

;; Closed-over macro demo
;;
;; To answer a question, yes, you can close over macro definitions.
;; There's lots of ways to do that!
;;
;; The key is to remember that macros are "code-rewriting" functions.
;; When code is compiled, each time the macro is used, the macro
;; definition runs.  Whatever it returns is what gets compiled.
;; Here's some examples.

piquan

// Useful link:
// http://www.personal.kent.edu/~sbirch/Music_Production/MP-II/MIDI/an_introduction_to_midi_contents.htm

#include <assert.h>
#include <err.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

piquan

#! /usr/bin/env python3

import base64
import gzip
import math
import random
import sys
import time

# This requires Pillow, a fork of PIL.  Please uninstall PIL if you have

piquan

FROM debian:stretch-slim

RUN apt-get update && apt-get install -y texlive-binaries build-essential

# Note that ADD will automatically extract tarballs.
ADD cwebbin-22p.tar.gz /tmp/
ADD cweb-3.64c.tar.gz /tmp/cwebbin-cwebbin-22p/
ADD cwebbin.diff /tmp/cwebbin-cwebbin-22p/
WORKDIR /tmp/cwebbin-cwebbin-22p/
RUN patch -p1 < cwebbin.diff

piquan

/* HTTP GET Example using plain POSIX sockets

   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/
#include <string.h>
#include "freertos/FreeRTOS.h"

piquan

// Today I learned that if you are sloppy with your parts bin
// organization, and mean to grab a piezo speaker and instead grab a
// piezo buzzer with a built-in oscillator, you get an interesting
// spectrum from a frequency sweep.  The sum-and-difference signals
// and their harmonics make neat patterns in a spectrogram!
//
// This originally was supposed to use a piezo speaker, so the
// amplifier below is based around that.  However, I grabbed the wrong
// part; I grabbed a buzzer with an internal 2 kHz oscillator, similar
// to Adafruit's part 1536.  (1536 is 5v tolerant, but I meant to grab

piquan

#! ./venv/bin/python3

# Q to quit
# R to randomize
# S to make a simple initial state
# + or - to change rule number by 1 (watch the title bar)
# Digits to enter the rule number; you may need to prefix it with some 0s.
# Space to pause / resume

import random

piquan

//--------------------- .text._Z4testmmPm         --------------------------  
        .section        .text._Z4testmmPm,"ax",@progbits  
        .sectioninfo    @"SHI_REGISTERS=14"  
        .align  64  
        .global         _Z4testmmPm  
        .type           _Z4testmmPm,@function  
        .size           _Z4testmmPm,(.L_28 - _Z4testmmPm)  
        .other          _Z4testmmPm,@"STO_CUDA_ENTRY STV_DEFAULT"  
_Z4testmmPm:  
.text._Z4testmmPm: