Initial SMM (System Management Mode) emulation

2020-01-12 01:04:05 -06:00
parent ed9d0f4d1b
commit 391e71c236
9 changed files with 441 additions and 37 deletions
--- a/src/cpu_new/x86_ops_misc.h
+++ b/src/cpu_new/x86_ops_misc.h
@@ -957,3 +957,15 @@ static int opWRMSR(uint32_t fetchdat)
        return 1;
 }

+static int opRSM(uint32_t fetchdat)
+{
+        if(!in_smm)
+        {
+                leave_smm();
+                if(smi_latched) enter_smm();
+                return 0;
+        }
+        cpu_state.pc = cpu_state.oldpc;
+        x86illegal();
+        return 1;
+}