Fix potential failure to invalidate instruction decoding after bp.

Updated simple assembler to allow setting data segment origin.

PiperOrigin-RevId: 805868787
Change-Id: I4707518dc457f1366276b1051717b33c0a07f00f

cheriot/cheriot_top.cc

diff --git a/cheriot/cheriot_top.cc b/cheriot/cheriot_top.cc
index f549ec8..36eab83 100644
--- a/cheriot/cheriot_top.cc
+++ b/cheriot/cheriot_top.cc
@@ -933,6 +933,7 @@
   if (inst_swap) {
     (void)rv_ap_manager_->ap_memory_interface()->WriteOriginalInstruction(
         address);
+    cheriot_decode_cache_->Invalidate(address);
   }
   // Get the decoded instruction.
   Instruction* inst = cheriot_decode_cache_->GetDecodedInstruction(address);