Index: ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
+++ ps/trunk/binaries/data/mods/public/gui/credits/texts/programming.json
@@ -258,6 +258,7 @@
 				{ "nick": "TrinityDeath", "name": "Jethro Lu" },
 				{ "nick": "triumvir", "name": "Corin Schedler" },
 				{ "nick": "trompetin17", "name": "Juan Guillermo" },
+				{ "nick": "tpearson", "name": "Timothy Pearson" },
 				{ "nick": "user1", "name": "A. C." },
 				{ "nick": "usey11" },
 				{ "nick": "vincent_c", "name": "Vincent Cheng" },
Index: ps/trunk/build/premake/premake5.lua
===================================================================
--- ps/trunk/build/premake/premake5.lua
+++ ps/trunk/build/premake/premake5.lua
@@ -87,6 +87,8 @@
 			arch = "aarch64"
 		elseif string.find(machine, "e2k") == 1 then
 			arch = "e2k"
+		elseif string.find(machine, "ppc64") == 1 or string.find(machine, "powerpc64") == 1 then
+			arch = "ppc64"
 		else
 			print("WARNING: Cannot determine architecture from GCC, assuming x86")
 		end
@@ -865,6 +867,8 @@
 		table.insert(source_dirs, "lib/sysdep/arch/aarch64");
 	elseif arch == "e2k" then
 		table.insert(source_dirs, "lib/sysdep/arch/e2k");
+	elseif arch == "ppc64" then
+		table.insert(source_dirs, "lib/sysdep/arch/ppc64");
 	end
 
 	-- OS-specific
Index: ps/trunk/source/lib/alignment.h
===================================================================
--- ps/trunk/source/lib/alignment.h
+++ ps/trunk/source/lib/alignment.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2018 Wildfire Games.
+/* Copyright (C) 2021 Wildfire Games.
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
@@ -80,7 +80,18 @@
 // MMU pages
 //
 
+#ifdef ARCH_PPC64
+// NOTE: ppc64 can operate in either 4k or 64k page size mode
+// If the define page size is larger than the active page size,
+// the allocator functions normally.  If the defined page size
+// is less than the active page size, the allocator fails tests.
+//
+// Define the page size to the maximum known architectural page
+// size on ppc64 systems.
+static const size_t g_PageSize = 64 * 1024;	// 64 KB
+#else
 static const size_t g_PageSize = 4 * 1024;	// 4 KB
+#endif
 static const size_t g_LargePageSize = 2 * 1024 * 1024;	// 2 MB
 
 
Index: ps/trunk/source/lib/byte_order.h
===================================================================
--- ps/trunk/source/lib/byte_order.h
+++ ps/trunk/source/lib/byte_order.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020 Wildfire Games.
+/* Copyright (C) 2021 Wildfire Games.
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
@@ -33,7 +33,7 @@
 #ifndef BYTE_ORDER
 # define LITTLE_ENDIAN 0x4321
 # define BIG_ENDIAN    0x1234
-# if ARCH_IA32 || ARCH_IA64 || ARCH_AMD64 || ARCH_ALPHA || ARCH_ARM || ARCH_AARCH64 || ARCH_MIPS || ARCH_E2K || defined(__LITTLE_ENDIAN__)
+# if ARCH_IA32 || ARCH_IA64 || ARCH_AMD64 || ARCH_ALPHA || ARCH_ARM || ARCH_AARCH64 || ARCH_MIPS || ARCH_E2K || ARCH_PPC64 || defined(__LITTLE_ENDIAN__)
 #  define BYTE_ORDER LITTLE_ENDIAN
 # else
 #  define BYTE_ORDER BIG_ENDIAN
Index: ps/trunk/source/lib/sysdep/arch.h
===================================================================
--- ps/trunk/source/lib/sysdep/arch.h
+++ ps/trunk/source/lib/sysdep/arch.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2020 Wildfire Games.
+/* Copyright (C) 2021 Wildfire Games.
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
@@ -64,6 +64,12 @@
 #else
 # define ARCH_AARCH64 0
 #endif
+// .. PowerPC64 (PPC64)
+#if defined(__powerpc64__)
+# define ARCH_PPC64 1
+#else
+# define ARCH_PPC64 0
+#endif
 // .. MIPS
 #if defined(__MIPS__) || defined(__mips__) || defined(__mips)
 # define ARCH_MIPS 1
@@ -78,7 +84,7 @@
 #endif
 
 // ensure exactly one architecture has been detected
-#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K) != 1
+#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K+ARCH_PPC64) != 1
 # error "architecture not correctly detected (either none or multiple ARCH_* defined)"
 #endif
 
Index: ps/trunk/source/ps/GameSetup/HWDetect.cpp
===================================================================
--- ps/trunk/source/ps/GameSetup/HWDetect.cpp
+++ ps/trunk/source/ps/GameSetup/HWDetect.cpp
@@ -124,6 +124,7 @@
 	scriptInterface.SetProperty(settings, "arch_arm", ARCH_ARM);
 	scriptInterface.SetProperty(settings, "arch_aarch64", ARCH_AARCH64);
 	scriptInterface.SetProperty(settings, "arch_e2k", ARCH_E2K);
+	scriptInterface.SetProperty(settings, "arch_ppc64", ARCH_PPC64);
 
 #ifdef NDEBUG
 	scriptInterface.SetProperty(settings, "build_debug", 0);