260 lines
27 KiB
HTML
260 lines
27 KiB
HTML
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<div class="headertitle"><div class="title">macros.h</div></div>
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<div class="contents">
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<a href="macros_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef _MACROS_H_</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define _MACROS_H_</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include <<a class="code" href="math_8h.html">math.h</a>></span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include <libultraship.h></span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#ifndef __sgi</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"><a class="line" href="macros_8h.html#a93a390d3f6c6f748f9ce929cf323168a"> 8</a></span><span class="preprocessor">#define GLOBAL_ASM(...)</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#if !defined(__sgi) && (!defined(NON_MATCHING) || !defined(AVOID_UB))</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// asm-process isn't supported outside of IDO, and undefined behavior causes</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment">// crashes.</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment">// #error Matching build is only possible on IDO; please build with NON_MATCHING=1.</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"><a class="line" href="macros_8h.html#a4bf0a01781df461ad257e5391ac09ae7"> 17</a></span><span class="preprocessor">#define ARRAY_COUNT(arr) (s32)(sizeof(arr) / sizeof(arr[0]))</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"><a class="line" href="macros_8h.html#af3ddc5a73ff88a58733f0879ce37196d"> 19</a></span><span class="preprocessor">#define GLUE(a, b) a##b</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"><a class="line" href="macros_8h.html#a8aacf963fc7253845c961ed3912d78a2"> 20</a></span><span class="preprocessor">#define GLUE2(a, b) GLUE(a, b)</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment">// Avoid compiler warnings for unused variables</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#define UNUSED __attribute__((unused))</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"><a class="line" href="macros_8h.html#addf5ec070e9499d36b7f2009ce736076"> 26</a></span><span class="preprocessor">#define UNUSED</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="comment">// Avoid undefined behaviour for non-returning functions</span></div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#define NORETURN __attribute__((noreturn))</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="macros_8h.html#aa1728270d73c5d1598de1fd691762eb1"> 33</a></span><span class="preprocessor">#define NORETURN</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">// Avoid undefined behaviour for non-returning functions</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#define NO_REORDER __attribute__((no_reorder))</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="macros_8h.html#a981d727c769c9516175fef643b82477d"> 40</a></span><span class="preprocessor">#define NO_REORDER</span></div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">// Static assertions</span></div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="preprocessor">#define STATIC_ASSERT(cond, msg) _Static_assert(cond, msg)</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"><a class="line" href="macros_8h.html#a8ce491b27b644889db1ca99d8c99c24e"> 47</a></span><span class="preprocessor">#define STATIC_ASSERT(cond, msg) typedef char GLUE2(static_assertion_failed, __LINE__)[(cond) ? 1 : -1]</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> </div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment">// Align to 8-byte boundary for DMA requirements</span></div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="preprocessor">#define ALIGNED8</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="macros_8h.html#afcf59d0855225b13f2060708ce1d6a9f"> 54</a></span><span class="preprocessor">#define ALIGNED8</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment">// Align to 16-byte boundary for audio lib requirements</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="preprocessor">#ifdef __GNUC__</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="preprocessor">#define ALIGNED16</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="macros_8h.html#a3fcac48969e76bd4245894796b40b7b6"> 61</a></span><span class="preprocessor">#define ALIGNED16</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment">// Fixed point macros</span></div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="macros_8h.html#a10664b2f9bc7d6aca323c2176607ed25"> 65</a></span><span class="preprocessor">#define FTOFIX(f) ((s32) ((f) * 65536.0))</span></div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="macros_8h.html#a38dd3cc47348bf50cffa34352cc93156"> 66</a></span><span class="preprocessor">#define ITOFIX(i) ((s32) ((i) << 16))</span></div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"><a class="line" href="macros_8h.html#a6ee57cbc899a869579ce6c9a9d91481e"> 67</a></span><span class="preprocessor">#define FIXTOF(x) ((double) ((x) / 65536.0))</span></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"><a class="line" href="macros_8h.html#ace18d13c8231a0f9fa2367c88bda5d62"> 68</a></span><span class="preprocessor">#define FIXTOI(x) ((s32) ((x) >> 16))</span></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="comment">// Split fixed-point values into its integer or fractional parts.</span></div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="macros_8h.html#af55e3de19a43cfde88382154130a2edc"> 71</a></span><span class="preprocessor">#define toFixedInt(f) (FTOFIX(f) >> 16)</span></div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="macros_8h.html#afb95d4bc9307ade70d0ac672aa24b82f"> 72</a></span><span class="preprocessor">#define toFrac(f) (FTOFIX(f) & 0xFFFF)</span></div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> </div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="comment">// Setup a fixed-point matrix using floats or doubles. Recommend using doubles for more precision.</span></div>
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<div class="foldopen" id="foldopen00075" data-start="" data-end="">
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="macros_8h.html#a0a3920b8b184cd75133b9e51c4c8d99d"> 75</a></span><span class="preprocessor">#define toFixedPointMatrix(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15, x16) \</span></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="preprocessor"> { \</span></div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="preprocessor"> { ((toFixedInt(x1)) << 16) | toFixedInt(x2), ((toFixedInt(x3)) << 16) | toFixedInt(x4), \</span></div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="preprocessor"> (toFixedInt(x5) << 16) | toFixedInt(x6), (toFixedInt(x7) << 16) | toFixedInt(x8) }, \</span></div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="preprocessor"> { ((toFixedInt(x9)) << 16) | toFixedInt(x10), ((toFixedInt(x11)) << 16) | toFixedInt(x12), \</span></div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="preprocessor"> (toFixedInt(x13) << 16) | toFixedInt(x14), (toFixedInt(x15) << 16) | toFixedInt(x16) }, \</span></div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="preprocessor"> { ((toFrac(x1)) << 16) | toFrac(x2), ((toFrac(x3)) << 16) | toFrac(x4), (toFrac(x5) << 16) | toFrac(x6), \</span></div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="preprocessor"> (toFrac(x7) << 16) | toFrac(x8) }, \</span></div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="preprocessor"> { \</span></div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="preprocessor"> ((toFrac(x9)) << 16) | toFrac(x10), ((toFrac(x11)) << 16) | toFrac(x12), \</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="preprocessor"> (toFrac(x13) << 16) | toFrac(x14), (toFrac(x15) << 16) | toFrac(x16) \</span></div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="preprocessor"> } \</span></div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="preprocessor"> }</span></div>
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</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment">// convert a virtual address to physical.</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="preprocessor">#ifndef TARGET_N64</span></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="macros_8h.html#af0a1d439c0dd0d6ceb64be64f1650bbc"> 91</a></span><span class="preprocessor">#define VIRTUAL_TO_PHYSICAL(addr) (addr)</span></div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="comment">// convert a physical address to virtual.</span></div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="macros_8h.html#ac1d0bb67b7c87d4c00796bc18d1f2e23"> 94</a></span><span class="preprocessor">#define PHYSICAL_TO_VIRTUAL(addr) (addr)</span></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="comment">// another way of converting virtual to physical</span></div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"><a class="line" href="macros_8h.html#ac33bc9457f1c1be3f60fcf54fab88ee7"> 97</a></span><span class="preprocessor">#define VIRTUAL_TO_PHYSICAL2(addr) (addr)</span></div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span><span class="preprocessor">#define VIRTUAL_TO_PHYSICAL(addr) ((uintptr_t) (addr) & 0x1FFFFFFF)</span></div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="comment">// convert a physical address to virtual.</span></div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span><span class="preprocessor">#define PHYSICAL_TO_VIRTUAL(addr) ((uintptr_t) (addr) | 0x80000000)</span></div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span><span class="comment">// another way of converting virtual to physical</span></div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="preprocessor">#define VIRTUAL_TO_PHYSICAL2(addr) ((u8*) (addr) - 0x80000000U)</span></div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span><span class="comment">// aligns an address to the next 16 bytes</span></div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"><a class="line" href="macros_8h.html#a08b2c3c00c27891c0b0179c9d8a1c2b6"> 109</a></span><span class="preprocessor">#define ALIGN16(val) (((val) + 0xF) & ~0xF)</span></div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment">// Envelopes are always stored as big endian, to match sequence files which are</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment">// byte blobs and can embed envelopes. Hence this byteswapping macro.</span></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="preprocessor">#ifndef BSWAP16</span></div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="preprocessor">#if IS_BIG_ENDIAN</span></div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="preprocessor">#define BSWAP16(x) (x)</span></div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="preprocessor">#else</span></div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"><a class="line" href="macros_8h.html#a5b9670220af6a7b1f964e53887255cab"> 117</a></span><span class="preprocessor">#define BSWAP16(x) (((x) & 0xff) << 8 | (((x) >> 8) & 0xff))</span></div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span></div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"><a class="line" href="macros_8h.html#a635e1ead21634c60d387a6602b27ada8"> 127</a></span><span class="preprocessor">#define GET_PACKED_END(dl) (((u8*) dl) + sizeof(dl) - sizeof(dl[0]) - 0x07000000)</span></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="preprocessor">#ifndef MAX</span></div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="macros_8h.html#afa99ec4acc4ecb2dc3c2d05da15d0e3f"> 130</a></span><span class="preprocessor">#define MAX(a, b) ((a) > (b) ? (a) : (b))</span></div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span><span class="preprocessor">#ifndef MIN</span></div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"><a class="line" href="macros_8h.html#a3acffbd305ee72dcd4593c0d8af64a4f"> 134</a></span><span class="preprocessor">#define MIN(a, b) ((a) < (b) ? (a) : (b))</span></div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="preprocessor">#ifndef CLAMP</span></div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"><a class="line" href="macros_8h.html#a8eb135fbf284e798769beb8a26247037"> 138</a></span><span class="preprocessor">#define CLAMP(var, min, max) ((var) < (min) ? min : (var) > (max) ? max : var)</span></div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="preprocessor">#endif</span></div>
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