zwegner

#include <immintrin.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>

// PRNG modified from the public domain RKISS by Bob Jenkins. See:
// http://www.burtleburtle.net/bob/rand/smallprng.html

typedef struct {

zwegner

# Proof of optimality of 4-move solution to adversarial Wordle
# https://qntm.org/files/wordle/index.html
import array
import collections

with open('wordle-words.txt') as f:
    normal_words = [word.strip() for word in f]

with open('wordle-fake-words.txt') as f:
    all_words = [word.strip() for word in f] + normal_words

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# Test address matching in store forwarding
#
# This tests a mechanism discussed in these references:
#
# * US Patent 2008/0082765 A1
#     https://patentimages.storage.googleapis.com/73/b9/bf/b258f3e3985f47/US20080082765A1.pdf
# * Fallout: Leaking Data on Meltdown-resistant CPUs
#     https://mdsattacks.com/files/fallout.pdf
# * Stack Overflow: What are the microarchitectural details behind MSBDS (Fallout)?
#     https://stackoverflow.com/a/56213609

zwegner

import re

from x86_info_term import get_cache

args, cache = get_cache()
uops_info = cache['datasets']['uops_info']['data']

for inst in uops_info:
    for form in uops_info[inst]['forms']:
        if 'ICL' in form['arch'] and 'SKX' in form['arch']:

zwegner

import random

def hamming(a, b):
    x = a ^ b
    c = 0
    while x:
        x &= x - 1
        c += 1
    return c

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import collections
import contextlib
import sys

# Register class, for GPRs and vector registers
_Reg = collections.namedtuple('Reg', 't v')
class Reg(_Reg):
    def __str__(self):
        names = ['ax', 'cx', 'dx', 'bx', 'sp', 'bp', 'si', 'di']
        if self.t == 'r' and self.v < 8:

zwegner

from fractions import Fraction

ascii = range(0, 0x80)
cont = range(0x80, 0xC0)
cont_2_0 = range(0xA0, 0xC0)
cont_2_2 = range(0x80, 0xA0)
cont_3_0 = range(0x90, 0xC0)
cont_3_2 = range(0x80, 0x90)
leader2 = range(0xC2, 0xE0)
leader3_0 = range(0xE0, 0xE1)

zwegner

import itertools

N_BITS = 8
MASK = (1 << N_BITS) - 1

# Bit class, which stores values as a truth table of up to two variables
class Bit:
    def __init__(self, op, bit_a=None, bit_b=None):
        self.op = op
        # Remove variables when the truth table doesn't depend on them

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N_BITS = 8
MASK = (1 << N_BITS) - 1

class Ternary:
    def __init__(self, ones, unknowns):
        self.ones = ones & MASK
        self.unknowns = unknowns & MASK
    def __add__(self, other):
        x = self.ones + other.ones
        u = self.unknowns | other.unknowns | (x ^ (x + self.unknowns + other.unknowns))

zwegner

#include <stdio.h>

const int mask[4] = { 0x5555, 0x3333, 0x0F0F, 0x00FF };

int count_table(int *table, char *lbl) {
	int count, x;

	for (count = x = 0; x < 1<<16; x++)
		count += table[x];