Skip to content

Instantly share code, notes, and snippets.

Avatar
🎼

Aaron Hinojosa 67hz

🎼
View GitHub Profile
@67hz
67hz / .bashrc
Created Aug 5, 2020
colorize man pages
View .bashrc
man() {
LESS_TERMCAP_mb=$'\e[01;31m' \
LESS_TERMCAP_md=$'\e[01;33m' \
LESS_TERMCAP_me=$'\e[0m' \
LESS_TERMCAP_se=$'\e[0m' \
LESS_TERMCAP_so=$'\e[01;44;19m' \
LESS_TERMCAP_ue=$'\e[0m' \
LESS_TERMCAP_us=$'\e[01;32m' \
command man "$@"
}
@67hz
67hz / CMakeLists.txt
Created Mar 21, 2020
C++ CMake starter - loads Gtest and Boost into deps - Change MainMain to whatever your app name is
View CMakeLists.txt
cmake_minimum_required(VERSION 3.13.0)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS ON)
# for gdb - remove before prod
# this is left to developer
# run: cmake -DCMAKE_BUILD_TYPE=Debug ..
set(CMAKE_BUILD_TYPE Debug)
add_compile_options(-Wall -Wextra -Wpedantic)
@67hz
67hz / Makefile
Created Mar 12, 2020
Makefile for STM32 development
View Makefile
TARGET=main
CC=arm-none-eabi-gcc
LD=arm-none-eabi-gcc
AR=arm-none-eabi-ar
AS=arm-none-eabi-as
CP=arm-none-eabi-objcopy
OD=arm-none-eabi-objdump
SE=arm-none-eabi-size
SF=st-flash
View cc_notes.md
@67hz
67hz / .ycm_extra_conf.py
Created Feb 28, 2020
Simple ycm_extra_conf.py with gtk support (adjust gtk path as necessary)
View .ycm_extra_conf.py
def Settings( ** kwargs):
return {
'flags': [
'-x',
'c',
'-std=c99',
'-Wall',
'-Wextra',
'-Werror',
'-I/usr/local/Cellar/gtk+3/3.24.14/include/gtk-3.0',
@67hz
67hz / erlang_notes.md
Last active Jul 26, 2019
My Erlang Notes circa 2004 with some recent additions
View erlang_notes.md

Erlang

  • let it crash philosophy - supervisors handle actor crashes
    • most common - restart actor with initial state
    • actor recieve messages in mailbox - can be across nodes
  • dynamically typed and strongly typed so no implicit conversion
  • atoms, tuples, pattern-matchingå
  • no true strings
  • atoms can't be garbage collected
  • Some BIFS implemented in C for speed
@67hz
67hz / main.asm
Created Apr 4, 2019
x86 Assembly: Scanning an array for a non-zero value
View main.asm
; Scanning array for non-zero value
.386
.model flat
.data
;intArray SWORD 0,0,0,0,4,3,0,-34,-56,7,8
intArray SWORD 0,0,0,0,0,0,0,0,0,0,0,0
.code
main proc
@67hz
67hz / finding_duplicates_in_string_using_bitwise_ops.cpp
Created Mar 27, 2019
A simple program to illustrate bitwise masking and merging to determine if a string contains duplicates.
View finding_duplicates_in_string_using_bitwise_ops.cpp
// Simple program to illustrate bitwise ops to check string for duplicates
#include <iostream>
using namespace std;
int main()
{
char * A = new char[20];
cout << "Enter string to be checked for duplicates" << endl;
cin >> A;
@67hz
67hz / find_duplicates_in_unsorted_array.cpp
Last active Apr 13, 2019
passing array as ref to maintain size info in C++
View find_duplicates_in_unsorted_array.cpp
// If std::array is not an option (e.g embedded), use the following tactic to maintain size info of array as param
// This method uses non-type template arguments to retain size of array.
// See std::begin() and std::end() for similar approaches.
#include <iostream>
using namespace std;
// @param h {T} represents highest number in given array
// used to determine size of hash array
@67hz
67hz / x86MemoryAddressingModes.md
Last active Mar 4, 2019
x86 Memory Addressing Modes with examples
View x86MemoryAddressingModes.md

x86 Memory Addressing Modes

Effective Address

effectiveAddress = BaseReg + IndexReg * ScaleFactor + Displacement

BaseReg = any general purpose register
IndexReg = Index Register - any gen purpose register except Stack Pointer Reg (ESP)
ScaleFactor = 1,2,4,8
Displacement = Constant offset encoded w/in instruction
You can’t perform that action at this time.