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Jacek Wieczorek Jacajack

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Bouncing back and forth between computer graphics, electrical engineering and synthesizers.

Jacajack / modrq.c

Created January 31, 2018 22:35

Simple Modbus request builder with va_arg (maybe we need this in liblightmodbus?)

	//TODO polish this (and tidy!)
	//Send Modbus request and parses response
	int modrq( uint8_t priority, uint8_t function, uint8_t addr, uint16_t reg, uint16_t cnt, ... )
	{
	va_list ap;

	uint16_t andmask, ormask, regtype;
	uint8_t waccess;
	int ec = 1;

Jacajack / latexmatrix.sh

Created January 21, 2018 21:41

Converts Scilab matrix to Latex

xsel --clipboard | sed 's/ //gi' | sed 's/\./ \& /gi' | sed 's/ & $/ \\\\/g' | xclip -i

Jacajack / qwcfg.sh

Last active December 2, 2017 20:52

Quick wine config

	#!/bin/bash

	opt1="Virtual"
	opt2="Manage&Decorate"
	opt3="Manage"
	opt4="Nothing"
	mode=$(xmessage -nearmouse -print -buttons $opt1,$opt2,$opt3,$opt4 "Please select Wine graphics mode...")

	#Abort if no choice has been made
	if [[ -z $mode ]]; then

Jacajack / serialize.sh

Created November 23, 2017 23:23

Tired of renaming subtitle files to match with videos?

	#Renames all files in the current directory containing pattern S..E.. in their names
	#Extensions remain unchanged but names are simplified to just S..E..
	#This routine can be put in .bashrc

	function serialize( ) {
	rename 's/.(S\d\dE\d\d).\.(.)/$1.$2/i' .*
	}

Jacajack / hmul.h

Created November 2, 2017 12:38

AVR inline assembly 8bit multiplication upper half

Jacajack / midi.c

Created October 31, 2017 23:49

Simple C MIDI interpreter

	//Toporny, lecz skuteczny interpreter midi
	void midi( uint8_t byte )
	{
	//Odpowiednio: numer kanału, 3 bity statusu, limit danych w bajtach, liczba odczytanych bajtów
	static uint8_t channel = 0, status = 0, dlim = 0, dread = 0;
	static uint8_t dbuf[16] = {0}; //Bufor na dane

	if ( byte & ( 1 << 7 ) )
	{
	//Bajt stanu

Jacajack / compvals.sce

Created October 29, 2017 22:24

Scilab script for calculating AVR synth comparator values

Jacajack / namegen.c

Created October 8, 2017 12:06

Random name generator

	#include <stdlib.h>
	#include <stdio.h>
	#include <time.h>
	#include <string.h>
	#include <ctype.h>

	const char *vowels = "euioay";
	const char *consonants = "wrtpsdfghjklzxcvbnm";

	int main( int argc, char **argv )

Jacajack / fload1.c

Created October 2, 2017 19:31

File queuing service (rev. 1)

	#include <stdio.h>
	#include <stdlib.h>
	#include "fload.h"

	#define MAX_FILE_COUNT 256
	static FILE *files[MAX_FILE_COUNT] = {0};
	static int fcount = 0;


	//Queues specific file for loading

Jacajack / fontthief.asm

Created July 22, 2017 01:21

Display all characters from BIOS font