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docs/api/rand_8h_source.html
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44  <span id="projectnumber">4.5.0</span>
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46 <div id="projectbrief">API Documentation for GBDK 2020</div>
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101 <div class="header">
102 <div class="headertitle"><div class="title">rand.h</div></div>
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104 <div class="contents">
105 <a href="rand_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> </div>
106 <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#ifndef RAND_INCLUDE</span></div>
107 <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#define RAND_INCLUDE</span></div>
108 <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
109 <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include <<a class="code" href="types_8h.html">types.h</a>></span></div>
110 <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include <<a class="code" href="stdint_8h.html">stdint.h</a>></span></div>
111 <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
112 <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#if defined(__PORT_sm83) || defined(__PORT_mos6502)</span></div>
113 <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"><a class="line" href="rand_8h.html#initrand"> 28</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="rand_8h.html#initrand">initrand</a>(<a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> seed) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a>;</div>
114 <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#elif defined(__PORT_z80)</span></div>
115 <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="keywordtype">void</span> <a class="code hl_function" href="rand_8h.html#initrand">initrand</a>(<a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> seed) <a class="code hl_define" href="asm_2z80_2types_8h.html#Z88DK_FASTCALL">Z88DK_FASTCALL</a>;</div>
116 <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#endif</span></div>
117 <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
118 <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"><a class="line" href="rand_8h.html#RAND_MAX"> 33</a></span><span class="preprocessor">#define RAND_MAX 255</span></div>
119 <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="rand_8h.html#RANDW_MAX"> 34</a></span><span class="preprocessor">#define RANDW_MAX 65535</span></div>
120 <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
121 <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="keyword">extern</span> <a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> <a class="code hl_variable" href="rand_8h.html#__rand_seed">__rand_seed</a>;</div>
122 <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
123 <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="preprocessor">#if defined(__PORT_sm83)</span></div>
124 <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"><a class="line" href="rand_8h.html#c"> 54</a></span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#rand">rand</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>);</div>
125 <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="preprocessor">#elif defined(__PORT_z80)</span></div>
126 <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#rand">rand</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>, <a class="code hl_variable" href="msx_8h.html#iyh">iyh</a>, <a class="code hl_variable" href="msx_2metasprites_8h.html#iyl">iyl</a>);</div>
127 <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="preprocessor">#elif defined(__PORT_mos6502)</span></div>
128 <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#rand">rand</a>(<span class="keywordtype">void</span>);</div>
129 <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="preprocessor">#endif</span></div>
130 <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
131 <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="preprocessor">#if defined(__PORT_sm83)</span></div>
132 <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"><a class="line" href="rand_8h.html#randw"> 66</a></span><a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> <a class="code hl_function" href="rand_8h.html#randw">randw</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>);</div>
133 <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="preprocessor">#elif defined(__PORT_z80)</span></div>
134 <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> <a class="code hl_function" href="rand_8h.html#randw">randw</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>, <a class="code hl_variable" href="msx_8h.html#iyh">iyh</a>, <a class="code hl_variable" href="msx_2metasprites_8h.html#iyl">iyl</a>);</div>
135 <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="preprocessor">#elif defined(__PORT_mos6502)</span></div>
136 <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> <a class="code hl_function" href="rand_8h.html#randw">randw</a>(<span class="keywordtype">void</span>);</div>
137 <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="preprocessor">#endif</span></div>
138 <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
139 <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="preprocessor">#if defined(__PORT_sm83) || defined(__PORT_mos6502)</span></div>
140 <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"><a class="line" href="rand_8h.html#initarand"> 83</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="rand_8h.html#initarand">initarand</a>(<a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> seed) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a>;</div>
141 <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="preprocessor">#elif defined(__PORT_z80)</span></div>
142 <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span><span class="keywordtype">void</span> <a class="code hl_function" href="rand_8h.html#initarand">initarand</a>(<a class="code hl_typedef" href="stdint_8h.html#uint16_t">uint16_t</a> seed) <a class="code hl_define" href="asm_2z80_2types_8h.html#Z88DK_FASTCALL">Z88DK_FASTCALL</a>;</div>
143 <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="preprocessor">#endif</span></div>
144 <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
145 <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="preprocessor">#if defined(__PORT_sm83)</span></div>
146 <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"><a class="line" href="rand_8h.html#arand"> 93</a></span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#arand">arand</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>);</div>
147 <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="preprocessor">#elif defined(__PORT_z80)</span></div>
148 <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#arand">arand</a>(<span class="keywordtype">void</span>) <a class="code hl_define" href="asm_2types_8h.html#OLDCALL">OLDCALL</a> <a class="code hl_define" href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a>(<a class="code hl_variable" href="gb_8h.html#b">b</a>, <a class="code hl_variable" href="rand_8h.html#c">c</a>, <a class="code hl_variable" href="msx_8h.html#iyh">iyh</a>, <a class="code hl_variable" href="msx_2metasprites_8h.html#iyl">iyl</a>);</div>
149 <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span><span class="preprocessor">#elif defined(__PORT_mos6502)</span></div>
150 <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span><a class="code hl_typedef" href="stdint_8h.html#uint8_t">uint8_t</a> <a class="code hl_function" href="rand_8h.html#arand">arand</a>(<span class="keywordtype">void</span>);</div>
151 <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="preprocessor">#endif</span></div>
152 <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
153 <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span><span class="preprocessor">#endif</span></div>
154 <div class="ttc" id="aasm_2types_8h_html_OLDCALL"><div class="ttname"><a href="asm_2types_8h.html#OLDCALL">OLDCALL</a></div><div class="ttdeci">#define OLDCALL</div><div class="ttdef"><b>Definition:</b> types.h:21</div></div>
155 <div class="ttc" id="aasm_2types_8h_html_PRESERVES_REGS"><div class="ttname"><a href="asm_2types_8h.html#PRESERVES_REGS">PRESERVES_REGS</a></div><div class="ttdeci">#define PRESERVES_REGS(...)</div><div class="ttdef"><b>Definition:</b> types.h:32</div></div>
156 <div class="ttc" id="aasm_2z80_2types_8h_html_Z88DK_FASTCALL"><div class="ttname"><a href="asm_2z80_2types_8h.html#Z88DK_FASTCALL">Z88DK_FASTCALL</a></div><div class="ttdeci">#define Z88DK_FASTCALL</div><div class="ttdef"><b>Definition:</b> types.h:47</div></div>
157 <div class="ttc" id="agb_8h_html_b"><div class="ttname"><a href="gb_8h.html#b">b</a></div><div class="ttdeci">void b</div><div class="ttdef"><b>Definition:</b> gb.h:748</div></div>
158 <div class="ttc" id="amsx_2metasprites_8h_html_iyl"><div class="ttname"><a href="msx_2metasprites_8h.html#iyl">iyl</a></div><div class="ttdeci">static uint8_t iyl</div><div class="ttdef"><b>Definition:</b> metasprites.h:49</div></div>
159 <div class="ttc" id="amsx_8h_html_iyh"><div class="ttname"><a href="msx_8h.html#iyh">iyh</a></div><div class="ttdeci">void iyh</div><div class="ttdef"><b>Definition:</b> msx.h:102</div></div>
160 <div class="ttc" id="arand_8h_html___rand_seed"><div class="ttname"><a href="rand_8h.html#__rand_seed">__rand_seed</a></div><div class="ttdeci">uint16_t __rand_seed</div></div>
161 <div class="ttc" id="arand_8h_html_arand"><div class="ttname"><a href="rand_8h.html#arand">arand</a></div><div class="ttdeci">uint8_t arand(void) OLDCALL PRESERVES_REGS(b</div></div>
162 <div class="ttc" id="arand_8h_html_c"><div class="ttname"><a href="rand_8h.html#c">c</a></div><div class="ttdeci">uint8_t c</div><div class="ttdef"><b>Definition:</b> rand.h:54</div></div>
163 <div class="ttc" id="arand_8h_html_initarand"><div class="ttname"><a href="rand_8h.html#initarand">initarand</a></div><div class="ttdeci">void initarand(uint16_t seed) OLDCALL</div></div>
164 <div class="ttc" id="arand_8h_html_initrand"><div class="ttname"><a href="rand_8h.html#initrand">initrand</a></div><div class="ttdeci">void initrand(uint16_t seed) OLDCALL</div></div>
165 <div class="ttc" id="arand_8h_html_rand"><div class="ttname"><a href="rand_8h.html#rand">rand</a></div><div class="ttdeci">uint8_t rand(void) OLDCALL PRESERVES_REGS(b</div></div>
166 <div class="ttc" id="arand_8h_html_randw"><div class="ttname"><a href="rand_8h.html#randw">randw</a></div><div class="ttdeci">uint16_t randw(void) OLDCALL PRESERVES_REGS(b</div></div>
167 <div class="ttc" id="astdint_8h_html"><div class="ttname"><a href="stdint_8h.html">stdint.h</a></div></div>
168 <div class="ttc" id="astdint_8h_html_uint16_t"><div class="ttname"><a href="stdint_8h.html#uint16_t">uint16_t</a></div><div class="ttdeci">unsigned short int uint16_t</div><div class="ttdef"><b>Definition:</b> stdint.h:52</div></div>
169 <div class="ttc" id="astdint_8h_html_uint8_t"><div class="ttname"><a href="stdint_8h.html#uint8_t">uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdef"><b>Definition:</b> stdint.h:51</div></div>
170 <div class="ttc" id="atypes_8h_html"><div class="ttname"><a href="types_8h.html">types.h</a></div></div>
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