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/**
* Example of how AVX512's FPGA-like VPTERNLOG instruction could
* be used to implement the other instructions in the x86 isa.
* Here we implement MMX PADDB. Due to the way we need to reshape
* the data, VPTERNLOG is probably most useful for huge datasets.
*/
uint64_t vpternlog(uint64_t a, uint64_t b, uint64_t c, uint64_t t) {
int i;
uint64_t r;
@jart
jart / reallz4.S
Created January 13, 2021 01:17
Tiniest lz4 block copier that's binary compatible with i8086 + i386 + x86_64
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
RMS NOTATION TUTORIAL
BEHAVIOR
=: write-only
+: read/writeable
&: earlyclobber (impacts register sharing, defensive copying, etc.)
%: commutative
,: groups alternative constraints
?: discourages group of constraints
@jart
jart / illumination.sh
Last active June 20, 2022 18:58
Rational Illumination for PC and TV w/ IBM Scratchpad
#!/bin/sh
fricas -nosman <<EOF
E := [_
-- Standard Illumination Model for Computers_
--_
-- Is defined as a system of linear equations, where negative_
-- colors don't exist and is solved by computing the point at_
-- which they all intersect the one which needs to be defined_
-- as the Planckian locus of the illuminant._
@jart
jart / defer.c
Last active March 26, 2024 07:08
Go-like defer for C that works with most optimization flag combinations under GCC/Clang
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
@jart
jart / printimage.c
Last active December 20, 2023 11:13
/*bin/echo ' -*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;coding:utf-8 -*-┤
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚────────────────────────────────────────────────────────────────────'>/dev/null
if ! [ "${0%.*}.exe" -nt "$0" ]; then
#!/usr/bin/env python2
import BaseHTTPServer
import SocketServer
import base64
import httplib
import mimetypes
import os
import shutil
import ssl
@jart
jart / fone.go
Last active June 6, 2020 19:34
Linux CLI Telephone in 300 lines of Go. This is a NAT traversing SIP user agent. It can hook into the PSTN via gateways like Flowroute. The keyboard can be used to send DTMF tones.
// To the extent possible under law, Justine Tunney has waived
// all copyright and related or neighboring rights to this file,
// as it is written in the following disclaimers:
// - http://unlicense.org/
// - http://creativecommons.org/publicdomain/zero/1.0/
package main
// #cgo pkg-config: ncurses libpulse-simple
// #include <stdlib.h>
--- /tmp/NonBlockingThreadPool.h 2018-05-25 12:50:34.146863121 -0700
+++ NonBlockingThreadPool.h 2018-05-25 12:48:54.000000000 -0700
@@ -10,6 +10,7 @@
#ifndef EIGEN_CXX11_THREADPOOL_NONBLOCKING_THREAD_POOL_H
#define EIGEN_CXX11_THREADPOOL_NONBLOCKING_THREAD_POOL_H
+#include <iostream>
namespace Eigen {
#!/bin/sh
# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software