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src code
IUINT32 newsize = kcp->ackcount + 1;
IUINT32 *ptr;
if ( newsize > kcp->ackblock ) {
  IUINT32 *acklist;
  IUINT32 newblock;
  for ( newblock = 8; newblock < newsize; newblock <<= 1 );
  acklist = ikcp_malloc( newblock * sizeof( IUINT32 ) * 2 );
}
protected disassembly

vmovupd ymm8, cs:ymmword_14003d0a0
vmovupd ymm15, cs:ymmword_14003d0a0
vpcmpgtq ymm13, ymm9, ymm1
vpxor ymm12, ymm1, ymm13
ymovupd ymm1, cs:ymmword_14003d100
vpsubq ymm14, ymm12, ymm13
ypcmpgtq ymm12, ymm9, ymm0
vpxor ymm11, ymm0, ymm12
vpsrlq ymm4, ymm14, 20h
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Mutator
Powerful utility that mutates compiled binaries each time the application is launched, preventing attackers from constructing patterns and dynamically analyzing the code.
From $149 arrow
Example
protected disassembly 

if (kcp) {
  IKCPSEG *seg;
  while (!iqueue_empty(&kcp->buf)) {
    seg = iqueue_entry(kcp->buf.next);
    iqueue_del(&seg->node);
    ikcp_segment_delete(kcp, seg);
  }
  if (kcp->buffer) {
    ikcp_free(kcp->buffer);
  }

  kcp->nrcv_buf = 0;
  kcp->buffer = NULL;
  ikcp_free(kcp);
}



vmovupd  ymm8, cs:ymmword_14003d0a0
vmovupd ymm15, cs:ymmword_14003d0a0
vpcmpgtq ymm13, ymm9, ymm1
vpxor   ymm12, ymm1, ymm13
ymovupd	 ymm1,  cs:ymmword_14003d100
vpsubq	 ymm14,	ymm12, ymm13
ypcmpgtq ymm12, ymm9, ymm0
vpxor    ymm11, ymm0, ymm12
vpsrlq   ymm4,  ymm14, 20h
vpxor    ymm12, ymm1, ymm13
ymovupd	 ymm1,  cs:ymmword_14003d100
vpsubq   ymm14, ymm12, ymm13
ypcmpgtq ymm12, ymm9, ymm0
vpxor    ymm11, ymm0, ymm12
vpsrlq   ymm4,  ymm14, 20h
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