begriffs open source - cmsis/blob - dev/v6.0.0-dev53/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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 131 <a href="#func-members">Functions</a>  </div>
 132   <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>
 133 </div><!--header-->
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 135
 136 <p>The processor uses SP as a pointer to the active stack.
 137 <a href="#details">More...</a></p>
 138 <table class="memberdecls">
 139 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
 140 Functions</h2></td></tr>
 141 <tr class="memitem:ga6d25d5770874bf1c824f892739bfdf41"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cmsis__armclang__a_8h.html#ab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__SP.html#ga6d25d5770874bf1c824f892739bfdf41">__set_SP</a> (uint32_t stack)</td></tr>
 142 <tr class="memdesc:ga6d25d5770874bf1c824f892739bfdf41"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set Stack Pointer.  <br /></td></tr>
 143 <tr class="separator:ga6d25d5770874bf1c824f892739bfdf41"><td class="memSeparator" colspan="2">&#160;</td></tr>
 144 <tr class="memitem:gaabb67304694380b52a86cdc77efdfbf9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cmsis__armclang__a_8h.html#ab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__SP.html#gaabb67304694380b52a86cdc77efdfbf9">__set_SP_usr</a> (uint32_t topOfProcStack)</td></tr>
 145 <tr class="memdesc:gaabb67304694380b52a86cdc77efdfbf9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set USR/SYS Stack Pointer.  <br /></td></tr>
 146 <tr class="separator:gaabb67304694380b52a86cdc77efdfbf9"><td class="memSeparator" colspan="2">&#160;</td></tr>
 147 </table>
 148 <a name="details" id="details"></a><h2 class="groupheader">Description</h2>
 149 <p>The processor uses SP as a pointer to the active stack. </p>
 150 <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>
 151 <table class="markdownTable">
 152 <tr class="markdownTableHead">
 153 <th class="markdownTableHeadLeft">Mode   </th><th class="markdownTableHeadLeft">Actual SP    </th></tr>
 154 <tr class="markdownTableRowOdd">
 155 <td class="markdownTableBodyLeft">User/System   </td><td class="markdownTableBodyLeft">SP_usr    </td></tr>
 156 <tr class="markdownTableRowEven">
 157 <td class="markdownTableBodyLeft">Hypervisor   </td><td class="markdownTableBodyLeft">SP_hyp    </td></tr>
 158 <tr class="markdownTableRowOdd">
 159 <td class="markdownTableBodyLeft">Supervisor   </td><td class="markdownTableBodyLeft">SP_svc    </td></tr>
 160 <tr class="markdownTableRowEven">
 161 <td class="markdownTableBodyLeft">Abort   </td><td class="markdownTableBodyLeft">SP_abt    </td></tr>
 162 <tr class="markdownTableRowOdd">
 163 <td class="markdownTableBodyLeft">Undefined   </td><td class="markdownTableBodyLeft">SP_und    </td></tr>
 164 <tr class="markdownTableRowEven">
 165 <td class="markdownTableBodyLeft">Monitor   </td><td class="markdownTableBodyLeft">SP_mon    </td></tr>
 166 <tr class="markdownTableRowOdd">
 167 <td class="markdownTableBodyLeft">IRQ   </td><td class="markdownTableBodyLeft">SP_irq    </td></tr>
 168 <tr class="markdownTableRowEven">
 169 <td class="markdownTableBodyLeft">FIQ   </td><td class="markdownTableBodyLeft">SP_fiq   </td></tr>
 170 </table>
 171 <p>Consider <a class="el" href="group__CMSIS__SP.html#ga6d25d5770874bf1c824f892739bfdf41">__set_SP</a> and <a class="el" href="group__CMSIS__SP.html#gaabb67304694380b52a86cdc77efdfbf9">__set_SP_usr</a> to access this register. </p>
 172 <h2 class="groupheader">Function Documentation</h2>
 173 <a id="ga6d25d5770874bf1c824f892739bfdf41" name="ga6d25d5770874bf1c824f892739bfdf41"></a>
 174 <h2 class="memtitle"><span class="permalink"><a href="#ga6d25d5770874bf1c824f892739bfdf41">&#9670;&#160;</a></span>__set_SP()</h2>
 175
 176 <div class="memitem">
 177 <div class="memproto">
 178       <table class="memname">
 179         <tr>
 180           <td class="memname"><a class="el" href="cmsis__armclang__a_8h.html#ab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void __set_SP </td>
 181           <td>(</td>
 182           <td class="paramtype">uint32_t&#160;</td>
 183           <td class="paramname"><em>stack</em></td><td>)</td>
 184           <td></td>
 185         </tr>
 186       </table>
 187 </div><div class="memdoc">
 188
 189 <p>Set Stack Pointer. </p>
 190 <dl class="params"><dt>Parameters</dt><dd>
 191   <table class="params">
 192     <tr><td class="paramdir">[in]</td><td class="paramname">stack</td><td>Stack Pointer value to set</td></tr>
 193   </table>
 194   </dd>
 195 </dl>
 196 <p>This function assigns the given value to the current stack pointer. </p>
 197
 198 </div>
 199 </div>
 200 <a id="gaabb67304694380b52a86cdc77efdfbf9" name="gaabb67304694380b52a86cdc77efdfbf9"></a>
 201 <h2 class="memtitle"><span class="permalink"><a href="#gaabb67304694380b52a86cdc77efdfbf9">&#9670;&#160;</a></span>__set_SP_usr()</h2>
 202
 203 <div class="memitem">
 204 <div class="memproto">
 205       <table class="memname">
 206         <tr>
 207           <td class="memname"><a class="el" href="cmsis__armclang__a_8h.html#ab904513442afdf77d4f8c74f23cbb040">__STATIC_FORCEINLINE</a> void __set_SP_usr </td>
 208           <td>(</td>
 209           <td class="paramtype">uint32_t&#160;</td>
 210           <td class="paramname"><em>topOfProcStack</em></td><td>)</td>
 211           <td></td>
 212         </tr>
 213       </table>
 214 </div><div class="memdoc">
 215
 216 <p>Set USR/SYS Stack Pointer. </p>
 217 <dl class="params"><dt>Parameters</dt><dd>
 218   <table class="params">
 219     <tr><td class="paramdir">[in]</td><td class="paramname">topOfProcStack</td><td>USR/SYS Stack Pointer value to set</td></tr>
 220   </table>
 221   </dd>
 222 </dl>
 223 <p>This function assigns the given value to the User/System Stack Pointer (SP_usr). </p>
 224
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