X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2FCyclone%2FOpMove.cpp;h=1bc7a516a6535cea64ab60a15f1941d838c5000b;hb=83c093a48ab58670ea82d0ec81658daa9f9b950a;hp=b5dc0ce57354da09d926e573557a6c50d1887dc8;hpb=0e11c502b05a9ccd67d34d1f0975852d8c3d4232;p=picodrive.git

diff --git a/cpu/Cyclone/OpMove.cpp b/cpu/Cyclone/OpMove.cpp
index b5dc0ce..1bc7a51 100644
--- a/cpu/Cyclone/OpMove.cpp
+++ b/cpu/Cyclone/OpMove.cpp
@@ -415,12 +415,21 @@ int OpMovem(int op)
   }
   else
   {
-    // if (size == 2 && decr && SPLIT_MOVEL_PD) we should do 2xWrite16 here
-    // (same as in movel.l ?, -(An)), but as this is not likely to be needed and
-    // we do not want the performance hit, we do single Write32 instead.
     ot("  ;@ Copy register to memory:\n",1<<size);
     ot("  ldr r1,[r7,r10] ;@ Load value from Dn/An\n");
-    EaWrite(6,1,ea,size,0x003f);
+#if SPLIT_MOVEL_PD
+    if (decr && size==2) { // -(An)
+      ot("  add r0,r6,#2\n");
+      EaWrite(0,1,ea,1,0x003f,0,0);
+      ot("  ldr r1,[r7,r10] ;@ Load value from Dn/An\n");
+      ot("  mov r0,r6\n");
+      EaWrite(0,1,ea,1,0x003f,1);
+    }
+    else
+#endif
+    {
+      EaWrite(6,1,ea,size,0x003f);
+    }
   }
 
   if (decr==0) ot("  add r6,r6,#%d ;@ Post-increment address\n",1<<size);