begriffs open source - cmsis/blob - main/Core_A/html/group__CMSIS__SP.html

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  46    <div id="projectname">CMSIS-Core (Cortex-A)
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  55    <div id="projectbrief">CMSIS-Core support for Cortex-A processor-based devices</div>
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 127   <div class="summary">
 128 <a href="#func-members">Functions</a>  </div>
 129   <div class="headertitle"><div class="title">Stack Pointer (SP/R13)<div class="ingroups"><a class="el" href="group__CMSIS__core__register.html">Core Register Access</a></div></div></div>
 130 </div><!--header-->
 131 <div class="contents">
 132
 133 <p>The processor uses SP as a pointer to the active stack.
 134 <a href="#details">More...</a></p>
 135 <table class="memberdecls">
 136 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
 137 Functions</h2></td></tr>
 138 <tr class="memitem:ga6af63cb939bd108aef1c0f12622350cb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__comp__cntrl__gr.html#gaba87361bfad2ae52cfe2f40c1a1dbf9c">__STATIC_INLINE</a> <a class="el" href="group__comp__cntrl__gr.html#ga1378040bcf22428955c6e3ce9c2053cd">__ASM</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__SP.html#ga6af63cb939bd108aef1c0f12622350cb">__set_SP</a> (uint32_t stack)</td></tr>
 139 <tr class="memdesc:ga6af63cb939bd108aef1c0f12622350cb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set Stack Pointer.  <br /></td></tr>
 140 <tr class="separator:ga6af63cb939bd108aef1c0f12622350cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
 141 <tr class="memitem:gabfe36eb17b6ae34633c7e155d132426e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__comp__cntrl__gr.html#gaba87361bfad2ae52cfe2f40c1a1dbf9c">__STATIC_INLINE</a> <a class="el" href="group__comp__cntrl__gr.html#ga1378040bcf22428955c6e3ce9c2053cd">__ASM</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__SP.html#gabfe36eb17b6ae34633c7e155d132426e">__set_SP_usr</a> (uint32_t topOfProcStack)</td></tr>
 142 <tr class="memdesc:gabfe36eb17b6ae34633c7e155d132426e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set USR/SYS Stack Pointer.  <br /></td></tr>
 143 <tr class="separator:gabfe36eb17b6ae34633c7e155d132426e"><td class="memSeparator" colspan="2">&#160;</td></tr>
 144 </table>
 145 <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
 146 <p>The Stack Pointer is banked per processor mode. Accessing the active stack pointer actually returns/modifies the stack pointer of the current processor execution mode.</p>
 147 <table class="markdownTable">
 148 <tr class="markdownTableHead">
 149 <th class="markdownTableHeadLeft">Mode   </th><th class="markdownTableHeadLeft">Actual SP    </th></tr>
 150 <tr class="markdownTableRowOdd">
 151 <td class="markdownTableBodyLeft">User/System   </td><td class="markdownTableBodyLeft">SP_usr    </td></tr>
 152 <tr class="markdownTableRowEven">
 153 <td class="markdownTableBodyLeft">Hypervisor   </td><td class="markdownTableBodyLeft">SP_hyp    </td></tr>
 154 <tr class="markdownTableRowOdd">
 155 <td class="markdownTableBodyLeft">Supervisor   </td><td class="markdownTableBodyLeft">SP_svc    </td></tr>
 156 <tr class="markdownTableRowEven">
 157 <td class="markdownTableBodyLeft">Abort   </td><td class="markdownTableBodyLeft">SP_abt    </td></tr>
 158 <tr class="markdownTableRowOdd">
 159 <td class="markdownTableBodyLeft">Undefined   </td><td class="markdownTableBodyLeft">SP_und    </td></tr>
 160 <tr class="markdownTableRowEven">
 161 <td class="markdownTableBodyLeft">Monitor   </td><td class="markdownTableBodyLeft">SP_mon    </td></tr>
 162 <tr class="markdownTableRowOdd">
 163 <td class="markdownTableBodyLeft">IRQ   </td><td class="markdownTableBodyLeft">SP_irq    </td></tr>
 164 <tr class="markdownTableRowEven">
 165 <td class="markdownTableBodyLeft">FIQ   </td><td class="markdownTableBodyLeft">SP_fiq   </td></tr>
 166 </table>
 167 <p>Consider <a class="el" href="group__CMSIS__SP.html#ga6af63cb939bd108aef1c0f12622350cb">__set_SP</a> and <a class="el" href="group__CMSIS__SP.html#gabfe36eb17b6ae34633c7e155d132426e">__set_SP_usr</a> to access this register. </p>
 168 <h2 class="groupheader">Function Documentation</h2>
 169 <a id="ga6af63cb939bd108aef1c0f12622350cb" name="ga6af63cb939bd108aef1c0f12622350cb"></a>
 170 <h2 class="memtitle"><span class="permalink"><a href="#ga6af63cb939bd108aef1c0f12622350cb">&#9670;&#160;</a></span>__set_SP()</h2>
 171
 172 <div class="memitem">
 173 <div class="memproto">
 174       <table class="memname">
 175         <tr>
 176           <td class="memname"><a class="el" href="group__comp__cntrl__gr.html#gaba87361bfad2ae52cfe2f40c1a1dbf9c">__STATIC_INLINE</a> <a class="el" href="group__comp__cntrl__gr.html#ga1378040bcf22428955c6e3ce9c2053cd">__ASM</a> void __set_SP </td>
 177           <td>(</td>
 178           <td class="paramtype">uint32_t&#160;</td>
 179           <td class="paramname"><em>stack</em></td><td>)</td>
 180           <td></td>
 181         </tr>
 182       </table>
 183 </div><div class="memdoc">
 184 <dl class="params"><dt>Parameters</dt><dd>
 185   <table class="params">
 186     <tr><td class="paramdir">[in]</td><td class="paramname">stack</td><td>Stack Pointer value to set</td></tr>
 187   </table>
 188   </dd>
 189 </dl>
 190 <p>This function assigns the given value to the current stack pointer. </p>
 191
 192 </div>
 193 </div>
 194 <a id="gabfe36eb17b6ae34633c7e155d132426e" name="gabfe36eb17b6ae34633c7e155d132426e"></a>
 195 <h2 class="memtitle"><span class="permalink"><a href="#gabfe36eb17b6ae34633c7e155d132426e">&#9670;&#160;</a></span>__set_SP_usr()</h2>
 196
 197 <div class="memitem">
 198 <div class="memproto">
 199       <table class="memname">
 200         <tr>
 201           <td class="memname"><a class="el" href="group__comp__cntrl__gr.html#gaba87361bfad2ae52cfe2f40c1a1dbf9c">__STATIC_INLINE</a> <a class="el" href="group__comp__cntrl__gr.html#ga1378040bcf22428955c6e3ce9c2053cd">__ASM</a> void __set_SP_usr </td>
 202           <td>(</td>
 203           <td class="paramtype">uint32_t&#160;</td>
 204           <td class="paramname"><em>topOfProcStack</em></td><td>)</td>
 205           <td></td>
 206         </tr>
 207       </table>
 208 </div><div class="memdoc">
 209 <dl class="params"><dt>Parameters</dt><dd>
 210   <table class="params">
 211     <tr><td class="paramdir">[in]</td><td class="paramname">topOfProcStack</td><td>USR/SYS Stack Pointer value to set</td></tr>
 212   </table>
 213   </dd>
 214 </dl>
 215 <p>This function assigns the given value to the User/System Stack Pointer (SP_usr). </p>
 216
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