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Jakob Löw M4GNV5

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M4GNV5 / alloc.ptrs.js
Last active May 25, 2017 22:03
Buddy Allocator
import "printf", "malloc", "free" from "libc.so.6";
var cfree = free;
var minfactor = 3;
var maxfactor = 7;
var maxsize = 1 << maxfactor;
var startBlock = 1 << maxfactor;
var used = null;
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M4GNV5 / primes.hs
Last active November 13, 2017 09:23
import Control.Concurrent.Async
import Data.Foldable
import Control.Exception
import Control.DeepSeq
numThreads = 4
maxChunkSize = 1024000
isPrime :: [Int] -> Int -> Bool
isPrime primes x = all ((/=0) . (mod x)) $ takeWhile ((<=x) . (^2)) primes
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M4GNV5 / measure.sh
Created February 10, 2018 13:10
Brainfuck compiler comparasion script
#!/bin/bash
set -e
input="../$1"
stdin="$2"
function measure()
{
total=0
@M4GNV5
M4GNV5 / input.ino
Created February 11, 2018 14:47
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266mDNS.h>
#define WIFI_SSID "<removed>"
#define WIFI_PSK "<removed>"
#define GPIO_LED 13
#define GPIO_RELAY 12
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M4GNV5 / esp8266 exception
Created February 17, 2018 10:04
ctx: sys
sp: 3ffffd70 end: 3fffffb0 offset: 01a0
>>>stack>>>
3fffff10: 4010502c 001d3def 3ffe9284 00000000
3fffff20: 4010502c 001d45f1 3ffeedf0 00000000
3fffff30: 3ffee6f0 3ffeedf0 40222613 3ffe9284
3fffff40: 00000000 001ccbdf 40201364 00000064
3fffff50: 3ffeedf0 01b12953 60000600 40106895
3fffff60: 40229e70 00000001 00000000 4020207c
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M4GNV5 / cppMacro.sh
Created April 7, 2018 21:50
#!/bin/bash
printf "#include <stdio.h>\n" > /tmp/cppmacro.c
while [ $# -gt 1 ]; do
printf "#include <$1.h>\n" >> /tmp/cppmacro.c
shift
done
printf "int main()\n{\n\tprintf(\"%%d\\\\n\", $1);\n\treturn 0;\n}" >> /tmp/cppmacro.c
gcc -D_GNU_SOURCE /tmp/cppmacro.c -o /tmp/cppmacro
@M4GNV5
M4GNV5 / gdblog.txt
Created July 1, 2018 21:33
Mongoose MQTT Crash
Remote debugging using /dev/ttyUSB0
0x40094624 in invoke_abort () at /home/jakob/git/Open-Vehicle-Monitoring-System-3/env/esp-idf/components/esp32/panic.c:139
139 *((int *) 0) = 0;
(gdb) back
#0 0x40094624 in invoke_abort () at /home/jakob/git/Open-Vehicle-Monitoring-System-3/env/esp-idf/components/esp32/panic.c:139
#1 0x400947ee in abort () at /home/jakob/git/Open-Vehicle-Monitoring-System-3/env/esp-idf/components/esp32/panic.c:148
#2 0x4010504e in __assert_func (
file=0x3f412e80 "/home/jakob/git/Open-Vehicle-Monitoring-System-3/vehicle/OVMS.V3/components/mongoose/mongoose/mongoose.c",
line=10700, func=<optimized out>, failedexpr=0x3f41308c "nc->send_mbuf.len >= len")
at ../../../.././newlib/libc/stdlib/assert.c:63
@M4GNV5
M4GNV5 / diceModuloCounts.hs
Last active November 7, 2018 21:31
import Data.Ord
import Data.List
import Data.Function
dice n = [1..n]
combinations xs ys = concat $ map (\y -> map (\x -> x : y) xs) ys
diceCombinations n k = foldr (combinations) (map return diceN) (replicate (k - 1) diceN)
@M4GNV5
M4GNV5 / _output_x86_64.txt
Created December 2, 2018 23:50
function optimized func(i1 : int) : int
incoming_reg(i1, rdi)
.L:
i3 = 42
l5 = retrieve_frame_pointer
outgoing_reg(i3, rsi)
outgoing_reg(l5, rdi)
call child
.L:
return_reg(i8, rax)
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M4GNV5 / displaylink--debug
Created March 9, 2019 12:44