doc cv32a65x: update xPELP fields in mstatus (#2177)

docs/06_cv32a65x_riscv/priv-isa-cv32a65x.html

@@ -487,6 +487,7 @@ <h1>The RISC-V Instruction Set Manual for CV32A65X: Volume II: Privileged Archit
 <li><a href="#_endianness_control_in_mstatus_and_mstatush_registers">3.1.6.4. Endianness Control in <code>mstatus</code> and <code>mstatush</code> Registers</a></li>
 <li><a href="#virt-control">3.1.6.5. Virtualization Support in <code>mstatus</code> Register</a></li>
 <li><a href="#_extension_context_status_in_mstatus_register">3.1.6.6. Extension Context Status in <code>mstatus</code> Register</a></li>
+<li><a href="#_previous_expected_landing_pad_elp_state_in_mstatus_register">3.1.6.7. Previous Expected Landing Pad (ELP) State in <code>mstatus</code> Register</a></li>
 </ul>
 </li>
 <li><a href="#_machine_trap_vector_base_address_mtvec_register">3.1.7. Machine Trap-Vector Base-Address (<code>mtvec</code>) Register</a></li>
@@ -500,9 +501,8 @@ <h1>The RISC-V Instruction Set Manual for CV32A65X: Volume II: Privileged Archit
 <li><a href="#mcause">3.1.15. Machine Cause (<code>mcause</code>) Register</a></li>
 <li><a href="#_machine_trap_value_mtval_register">3.1.16. Machine Trap Value (<code>mtval</code>) Register</a></li>
 <li><a href="#_machine_configuration_pointer_mconfigptr_register">3.1.17. Machine Configuration Pointer (<code>mconfigptr</code>) Register</a></li>
-<li><a href="#_machine_configuration_pointer_register_mconfigptr">3.1.18. Machine Configuration Pointer Register (<code>mconfigptr</code>)</a></li>
-<li><a href="#sec:menvcfg">3.1.19. Machine Environment Configuration (<code>menvcfg</code>) Register</a></li>
-<li><a href="#_machine_security_configuration_mseccfg_register">3.1.20. Machine Security Configuration (<code>mseccfg</code>) Register</a></li>
+<li><a href="#sec:menvcfg">3.1.18. Machine Environment Configuration (<code>menvcfg</code>) Register</a></li>
+<li><a href="#_machine_security_configuration_mseccfg_register">3.1.19. Machine Security Configuration (<code>mseccfg</code>) Register</a></li>
 </ul>
 </li>
 <li><a href="#_machine_level_memory_mapped_registers">3.2. Machine-Level Memory-Mapped Registers</a>
@@ -3412,6 +3412,13 @@ <h5 id="_extension_context_status_in_mstatus_register">3.1.6.6. Extension Contex
 illegal-instruction exception.</p>
 </div>
 </div>
+<div class="sect4">
+<h5 id="_previous_expected_landing_pad_elp_state_in_mstatus_register">3.1.6.7. Previous Expected Landing Pad (ELP) State in <code>mstatus</code> Register</h5>
+<div class="paragraph">
+<p>[CV32A65X] As the Zicfilp extension is not supported,
+the <code>SPELP</code> and <code>MPELP</code> fields are read-only zero.</p>
+</div>
+</div>
 </div>
 <div class="sect3">
 <h4 id="_machine_trap_vector_base_address_mtvec_register">3.1.7. Machine Trap-Vector Base-Address (<code>mtvec</code>) Register</h4>
@@ -3941,14 +3948,12 @@ <h4 id="mcause">3.1.15. Machine Cause (<code>mcause</code>) Register</h4>
 </div>
 <div class="sect3">
 <h4 id="_machine_trap_value_mtval_register">3.1.16. Machine Trap Value (<code>mtval</code>) Register</h4>
-
+<div class="paragraph">
+<p>[CV32A65X] The <code>mtval</code> register is an MXLEN-bit read-only 0 register.</p>
 </div>
-<div class="sect3">
-<h4 id="_machine_configuration_pointer_mconfigptr_register">3.1.17. Machine Configuration Pointer (<code>mconfigptr</code>) Register</h4>
-
 </div>
 <div class="sect3">
-<h4 id="_machine_configuration_pointer_register_mconfigptr">3.1.18. Machine Configuration Pointer Register (<code>mconfigptr</code>)</h4>
+<h4 id="_machine_configuration_pointer_mconfigptr_register">3.1.17. Machine Configuration Pointer (<code>mconfigptr</code>) Register</h4>
 <div class="paragraph">
 <p>The <code>mconfigptr</code> register is an MXLEN-bit read-only CSR that holds the physical
 address of a configuration data structure.</p>
@@ -3959,7 +3964,7 @@ <h4 id="_machine_configuration_pointer_register_mconfigptr">3.1.18. Machine Conf
 </div>
 </div>
 <div class="sect3">
-<h4 id="sec:menvcfg">3.1.19. Machine Environment Configuration (<code>menvcfg</code>) Register</h4>
+<h4 id="sec:menvcfg">3.1.18. Machine Environment Configuration (<code>menvcfg</code>) Register</h4>
 <div class="paragraph">
 <p>The <code>menvcfg</code> CSR is a 64-bit read/write register that controls
 certain characteristics of the execution environment for modes less
@@ -3975,7 +3980,7 @@ <h4 id="sec:menvcfg">3.1.19. Machine Environment Configuration (<code>menvcfg</c
 </div>
 </div>
 <div class="sect3">
-<h4 id="_machine_security_configuration_mseccfg_register">3.1.20. Machine Security Configuration (<code>mseccfg</code>) Register</h4>
+<h4 id="_machine_security_configuration_mseccfg_register">3.1.19. Machine Security Configuration (<code>mseccfg</code>) Register</h4>
 <div class="paragraph">
 <p><code>mseccfg</code> is an optional 64-bit read/write register,
 that controls security features.</p>

docs/06_cv32a65x_riscv/src/machine.adoc

@@ -1398,9 +1398,9 @@ interrupts, unless the interrupt results in a user-level context swap.
 ====
 endif::[]
 
-ifeval::[{ohg-config} != CV32A65X]
 ===== Previous Expected Landing Pad (ELP) State in `mstatus` Register
 
+ifeval::[{RVZicfilp} == true]
 The Zicfilp extension adds the `SPELP` and `MPELP` fields that hold the previous
 `ELP`, and are updated as specified in <<ZICFILP_FORWARD_TRAPS>>. The
 *__x__*`PELP` fields are encoded as follows:
@@ -1409,6 +1409,11 @@ The Zicfilp extension adds the `SPELP` and `MPELP` fields that hold the previous
 * 1 - `LP_EXPECTED` - a landing pad instruction is expected.
 endif::[]
 
+ifeval::[{RVZicfilp} == false]
+[{ohg-config}] As the Zicfilp extension is not supported,
+the `SPELP` and `MPELP` fields are read-only zero.
+endif::[]
+
 ==== Machine Trap-Vector Base-Address (`mtvec`) Register
 
 The `mtvec` register is an MXLEN-bit *WARL* read/write register that holds