From e1c0ec3dd2d387418178f94d2332f32e2fb1a7ff Mon Sep 17 00:00:00 2001
From: dingusdev <kataetheweirdo@gmail.com>
Date: Wed, 29 Jan 2020 20:47:12 -0700
Subject: [PATCH] Fixed MTSPR for time base regs

---
 cpu/ppc/ppcopcodes.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cpu/ppc/ppcopcodes.cpp b/cpu/ppc/ppcopcodes.cpp
index 9371a0a..2656eec 100644
--- a/cpu/ppc/ppcopcodes.cpp
+++ b/cpu/ppc/ppcopcodes.cpp
@@ -1333,10 +1333,12 @@ void ppc_mtspr() {
 
     switch (ref_spr) {
         //Mirror the TBRs in the SPR range to the user-mode TBRs.
-    case 268:
+    case 284:
+        ppc_state.ppc_spr[284]      = ppc_state.ppc_gpr[reg_s];
         ppc_state.ppc_tbr[TBR::TBL] = ppc_state.ppc_gpr[reg_s];
         break;
-    case 269:
+    case 285:
+        ppc_state.ppc_spr[285]      = ppc_state.ppc_gpr[reg_s];
         ppc_state.ppc_tbr[TBR::TBU] = ppc_state.ppc_gpr[reg_s];
         break;
     case 528: