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<div id="projectbrief">Windows memory hacking library</div>
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<div class="title">AsmStack.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#pragma once</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#pragma warning(disable : 4100)</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "AsmJit/AsmJit.h"</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#pragma warning(default : 4100)</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "../Include/Macro.h"</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="keyword">namespace </span><a class="code" href="namespaceblackbone.html">blackbone</a></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> {</div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="classblackbone_1_1_asm_stack_allocator.html"> 13</a></span> <span class="keyword">class </span><a class="code" href="classblackbone_1_1_asm_stack_allocator.html">AsmStackAllocator</a></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> {</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  BLACKBONE_API <a class="code" href="classblackbone_1_1_asm_stack_allocator.html">AsmStackAllocator</a>( asmjit::X86Assembler* pAsm, intptr_t baseval = 0x28 )</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  : _pAsm( pAsm )</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  , disp_ofst( <span class="keyword">sizeof</span>(<span class="keywordtype">size_t</span>) )</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  {</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#ifdef USE64</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  disp_ofst = baseval;</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  baseval = 0;</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  }</div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="classblackbone_1_1_asm_stack_allocator.html#ab86c8da341691d21b5dff8b7773238da"> 32</a></span>  BLACKBONE_API asmjit::Mem <a class="code" href="classblackbone_1_1_asm_stack_allocator.html#ab86c8da341691d21b5dff8b7773238da">AllocVar</a>( intptr_t size )</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// Align on word length</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  size = Align( size, <span class="keyword">sizeof</span>(<span class="keywordtype">size_t</span>) );</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#ifdef USE64</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">auto</span> val = asmjit::Mem( _pAsm->zsp, static_cast<int32_t>(disp_ofst), static_cast<int32_t>(size) );</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">auto</span> val = asmjit::Mem( _pAsm->zbp, -disp_ofst - size, size );</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  disp_ofst += size;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> val;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="classblackbone_1_1_asm_stack_allocator.html#a2bc1696e16fc74916817c46b8cde2aed"> 53</a></span>  BLACKBONE_API <span class="keywordtype">bool</span> <a class="code" href="classblackbone_1_1_asm_stack_allocator.html#a2bc1696e16fc74916817c46b8cde2aed">AllocArray</a>( asmjit::Mem arr[], <span class="keywordtype">int</span> count, intptr_t size )</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  {</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < count; i++)</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#ifdef USE64</span></div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  arr[i] = asmjit::Mem( _pAsm->zsp, static_cast<int32_t>(disp_ofst), static_cast<int32_t>(size) );</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#else</span></div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  arr[i] = asmjit::Mem( _pAsm->zbp, -disp_ofst - size, size );</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  disp_ofst += size;</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="classblackbone_1_1_asm_stack_allocator.html#a3186b81dfbc9c7b293326d2652cf49e2"> 72</a></span>  BLACKBONE_API <span class="keyword">inline</span> intptr_t <a class="code" href="classblackbone_1_1_asm_stack_allocator.html#a3186b81dfbc9c7b293326d2652cf49e2">getTotalSize</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> disp_ofst; };</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  asmjit::X86Assembler* _pAsm; <span class="comment">// Underlying assembler</span></div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  intptr_t disp_ofst; <span class="comment">// Next variable stack offset</span></div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> };</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// Helpers</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">//</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#define ALLOC_STACK_VAR(worker, name, type) asmjit::Mem name( worker.AllocVar( sizeof(type) ) );</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#define ALLOC_STACK_VAR_S(worker, name, size) asmjit::Mem name( worker.AllocVar( size ) );</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#define ALLOC_STACK_ARRAY(worker, name, type, count) \</span></div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"> asmjit::Mem name[count]; \</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"> worker.AllocArray( name, count, sizeof(type) );</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> }</div>
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<div class="ttc" id="classblackbone_1_1_asm_stack_allocator_html_ab86c8da341691d21b5dff8b7773238da"><div class="ttname"><a href="classblackbone_1_1_asm_stack_allocator.html#ab86c8da341691d21b5dff8b7773238da">blackbone::AsmStackAllocator::AllocVar</a></div><div class="ttdeci">BLACKBONE_API asmjit::Mem AllocVar(intptr_t size)</div><div class="ttdoc">Allocate stack variable </div><div class="ttdef"><b>Definition:</b> AsmStack.hpp:32</div></div>
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<div class="ttc" id="classblackbone_1_1_asm_stack_allocator_html"><div class="ttname"><a href="classblackbone_1_1_asm_stack_allocator.html">blackbone::AsmStackAllocator</a></div><div class="ttdef"><b>Definition:</b> AsmStack.hpp:13</div></div>
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<div class="ttc" id="classblackbone_1_1_asm_stack_allocator_html_a2bc1696e16fc74916817c46b8cde2aed"><div class="ttname"><a href="classblackbone_1_1_asm_stack_allocator.html#a2bc1696e16fc74916817c46b8cde2aed">blackbone::AsmStackAllocator::AllocArray</a></div><div class="ttdeci">BLACKBONE_API bool AllocArray(asmjit::Mem arr[], int count, intptr_t size)</div><div class="ttdoc">Allocate array of stack variables </div><div class="ttdef"><b>Definition:</b> AsmStack.hpp:53</div></div>
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<div class="ttc" id="classblackbone_1_1_asm_stack_allocator_html_a3186b81dfbc9c7b293326d2652cf49e2"><div class="ttname"><a href="classblackbone_1_1_asm_stack_allocator.html#a3186b81dfbc9c7b293326d2652cf49e2">blackbone::AsmStackAllocator::getTotalSize</a></div><div class="ttdeci">BLACKBONE_API intptr_t getTotalSize() const </div><div class="ttdoc">Get total size of all stack variables </div><div class="ttdef"><b>Definition:</b> AsmStack.hpp:72</div></div>
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<div class="ttc" id="namespaceblackbone_html"><div class="ttname"><a href="namespaceblackbone.html">blackbone</a></div><div class="ttdef"><b>Definition:</b> AsmHelper32.cpp:6</div></div>
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