Memory Freeing / Lifetime Management
void* aligned_alloc_32(size_t size)
void* ptr = NULL;
posix_memalign(&ptr, 32, size);
return ptr;
#include <immintrin.h>
// After AVX2 math and before SSE code:
_mm256_zeroupper();
struct DeferredFree void* ptr; uint64_t epoch; ;
thread_local vector<DeferredFree> local_freelist;
atomic<uint64_t> global_epoch;
void defer_free(void* p)
local_freelist.push_back(p, global_epoch.load());
void try_reclaim()
uint64_t min_epoch = /* min epoch observed among workers */;
for (auto it = local_freelist.begin(); it != local_freelist.end();)
if (it->epoch < min_epoch) free(it->ptr); it = local_freelist.erase(it);
else ++it;
Related search suggestions (terms you can use next):
The PC port of Uncharted 4: A Thief's End utilizes the AVX2 (Advanced Vector Extensions 2) instruction set, specifically SIMD (Single Instruction, Multiple Data) operations, for high-performance mathematical calculations. This creates a hard dependency on Intel Haswell (4th Gen) or later, and AMD Ryzen (Zen) or later CPUs. Users attempting to run the title on legacy hardware (e.g., Intel Ivy Bridge or AMD FX series) encounter an immediate EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D) crash. This paper analyzes the "AVX2 Fix" methodology, which typically involves binary patching or instruction emulation to bypass this hardware requirement. uncharted+4+avx2+fix+free
Navigate to your game installation folder. Usually:
Inside, find the Uncharted4.exe file (or U4.exe depending on updates). Do not launch it. Memory Freeing / Lifetime Management
Search engines are flooded with fake "AVX2 unlocker" software that asks for $9.99 or contains malware. Remember: Intel provides the SDE emulator for free to developers. Nobody should charge you for this fix.
If a website asks for your credit card to download an "AVX2 patch" for Uncharted 4, close the tab. The tools described here (Intel SDE + a Notepad script) are 100% free and open-source. #include <immintrin
Instead of running the game directly, we will tell Windows to run the game through the Intel SDE emulator.