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@dinfuehr
dinfuehr / aarch64-logical-immediates.txt
Last active August 26, 2025 15:19
all possible logical immediates
5555555555555555 0101010101010101010101010101010101010101010101010101010101010101 size=02 length=00 rotation=00 N=0 immr=000000 imms=111100
aaaaaaaaaaaaaaaa 1010101010101010101010101010101010101010101010101010101010101010 size=02 length=00 rotation=01 N=0 immr=000001 imms=111100
1111111111111111 0001000100010001000100010001000100010001000100010001000100010001 size=04 length=00 rotation=00 N=0 immr=000000 imms=111000
8888888888888888 1000100010001000100010001000100010001000100010001000100010001000 size=04 length=00 rotation=01 N=0 immr=000001 imms=111000
4444444444444444 0100010001000100010001000100010001000100010001000100010001000100 size=04 length=00 rotation=02 N=0 immr=000010 imms=111000
2222222222222222 0010001000100010001000100010001000100010001000100010001000100010 size=04 length=00 rotation=03 N=0 immr=000011 imms=111000
3333333333333333 0011001100110011001100110011001100110011001100110011001100110011 size=04 length=01 rotation=00 N=0 immr=000000 imms=111001
9999999999999999 100110011001100110011001100
@APTy
APTy / file.go
Created February 7, 2017 23:24
cgo
// A simple cgo example for writing to a file.
package main
// #include <stdlib.h>
// #include <stdio.h>
import "C"
import (
"errors"
"fmt"
@davehughes
davehughes / .pgpass
Last active December 6, 2022 10:38
psql connection aliasing/management
# alias:northwind
db1.example.com:5432:northwind:postgres:hunter2
# alias:mainframe
db1.example.com:5432:mainframe:dave:password123
db1.example.com:5432:unaliased:postgres:
import itertools
DIMENSIONS = {
'city': [
'sf', 'nyc', 'la', 'chicago',
],
'color': [
'red', 'orange', 'yellow', 'green', 'blue', 'indigo', 'violet',
],
@axgle
axgle / sync.Pool.md
Last active December 18, 2022 09:56

What is sync.Pool in golang and How to use it

sync.Pool (1/2)

Many Go libraries include custom thread-safe free lists, like this:

var objPool = make(chan *Object, 10)

func obj() *Object {

select {