diff --git a/devices/memctrl/memctrlbase.h b/devices/memctrl/memctrlbase.h
index 15798f8..2769f16 100644
--- a/devices/memctrl/memctrlbase.h
+++ b/devices/memctrl/memctrlbase.h
@@ -1,6 +1,6 @@
 /*
 DingusPPC - The Experimental PowerPC Macintosh emulator
-Copyright (C) 2018-21 divingkatae and maximum
+Copyright (C) 2018-22 divingkatae and maximum
                       (theweirdo)     spatium
 
 (Contact divingkatae#1017 or powermax#2286 on Discord for more info)
@@ -28,6 +28,17 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #include <string>
 #include <vector>
 
+// Common DRAM capacities.
+enum {
+    DRAM_CAP_2MB    = (1 << 21),
+    DRAM_CAP_4MB    = (1 << 22),
+    DRAM_CAP_8MB    = (1 << 23),
+    DRAM_CAP_16MB   = (1 << 24),
+    DRAM_CAP_32MB   = (1 << 25),
+    DRAM_CAP_64MB   = (1 << 26),
+    DRAM_CAP_128MB  = (1 << 27),
+};
+
 enum RangeType {
     RT_ROM    = 1, /* read-only memory */
     RT_RAM    = 2, /* random access memory */
diff --git a/devices/memctrl/platinum.h b/devices/memctrl/platinum.h
index c493ad9..651edc8 100644
--- a/devices/memctrl/platinum.h
+++ b/devices/memctrl/platinum.h
@@ -23,8 +23,8 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
     Author: Max Poliakovski
 
-    Platium is a single chip memory subsystem controller designed especially
-    for the Power Macintosh 7200 computer, code name Catalyst.
+    Platinum is a single chip memory and video subsystem controller designed
+    especially for the Power Macintosh 7200 computer, code name Catalyst.
 */
 
 #ifndef PLATINUM_MEMCTRL_H
@@ -136,16 +136,6 @@ enum PlatinumReg : uint32_t {
     IRIDIUM_CONFIG  = 0x4A0,
 };
 
-enum {
-    DRAM_CAP_2MB    = (1 << 21),
-    DRAM_CAP_4MB    = (1 << 22),
-    DRAM_CAP_8MB    = (1 << 23),
-    DRAM_CAP_16MB   = (1 << 24),
-    DRAM_CAP_32MB   = (1 << 25),
-    DRAM_CAP_64MB   = (1 << 26),
-    DRAM_CAP_128MB  = (1 << 27),
-};
-
 // FB_RESET register bits.
 enum {
     VRAM_SM_RESET     = (1 << 0), // VRAM state machine reset
diff --git a/machines/machinecatalyst.cpp b/machines/machinecatalyst.cpp
index 7b87410..e0a0292 100644
--- a/machines/machinecatalyst.cpp
+++ b/machines/machinecatalyst.cpp
@@ -54,7 +54,7 @@ int initialize_catalyst(std::string& id)
     }
 
     // plug 8MB RAM DIMM into slot #0
-    platinum_obj->insert_ram_dimm(0, Platinum::DRAM_CAP_8MB);
+    platinum_obj->insert_ram_dimm(0, DRAM_CAP_8MB);
 
     // allocate and map physical RAM
     platinum_obj->map_phys_ram();