--- GlideV2/glide2x/cvg/init/sst1init.h.orig	2022-09-26 18:55:51.354408063 +0200
+++ GlideV2/glide2x/cvg/init/sst1init.h	2022-09-26 19:00:30.416229589 +0200
@@ -163,6 +163,18 @@ p6Fence(void);
 #elif defined (__GNUC__) && defined(__i386__)
 #  define P6FENCE asm("xchg %%eax,%0" : /*outputs*/ : "m" (p6FenceVar) : \
 					"eax");
+#elif defined(__ia64__)
+#define P6FENCE asm volatile ("mf.a" ::: "memory");
+#elif defined(__alpha__)
+# define P6FENCE asm volatile("mb" ::: "memory");
+#elif defined(__powerpc__)
+# define P6FENCE asm volatile ("sync" ::: "memory");
+#elif defined (__x86_64__)
+# define P6FENCE asm volatile("mfence" ::: "memory");
+#elif defined(__sparc64__)
+# define P6FENCE asm volatile("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad" ::: "memory");
+#elif defined(__sparc__)
+# define P6FENCE asm volatile("" ::: "memory");
 #else
 #  error "P6 Fencing in-line assembler code needs to be added for this compiler"
 #endif  
--- GlideV2/glide2x/cvg/glide/src/cpudetect.c.orig	2000-04-20 23:26:36.000000000 +0200
+++ GlideV2/glide2x/cvg/glide/src/cpudetect.c	2013-09-21 08:28:32.804847399 +0200
@@ -34,14 +34,25 @@
 }
 
 void single_precision_asm() {
+#if defined(__x86_64__)
+  asm("push %rax \n fnclex \n fstcw (%rsp) \n movl (%rsp), %eax \n "
+      "and $0x0000fcff, %eax \n movl %eax, (%rsp) \n fldcw (%rsp) \n pop %rax");
+#elif defined(__i386__)
   asm("push %eax \n fnclex \n fstcw (%esp) \n movl (%esp), %eax \n "
       "and $0x0000fcff, %eax \n movl %eax, (%esp) \n fldcw (%esp) \n pop %eax");
+#endif
 }
 
 
 void double_precision_asm() {
-  asm("push %eax \n fnclex \n fstcw (%esp) \n movw (%esp), %eax \n "
+#if defined(__x86_64__)
+  asm("push %rax \n fnclex \n fstcw (%rsp) \n movl (%rsp), %eax \n "
+      "and $0x0000fcff, %eax \n or $0x000002ff, %eax \n mov %eax, (%rsp) \n "
+      "fldcw (%rsp) \n pop %rax");
+#elif defined(__i386__)
+  asm("push %eax \n fnclex \n fstcw (%esp) \n movl (%esp), %eax \n "
       "and $0x0000fcff, %eax \n or $0x000002ff, %eax \n mov %eax, (%esp) \n "
       "fldcw (%esp) \n pop %eax");
+#endif
 }
 
--- GlideV2/glide2x/cvg/init/makefile.linux.orig	2000-04-20 23:26:36.000000000 +0200
+++ GlideV2/glide2x/cvg/init/makefile.linux	2013-09-21 10:33:25.196185785 +0200
@@ -52,5 +52,5 @@
 # for some strange reason
 #
 ifndef DEBUG
-CFLAGS = -g $(GCFLAGS) $(LCFLAGS) $(VCFLAGS)
+CFLAGS = -g $(GCFLAGS) $(LCFLAGS) $(VCFLAGS) -fPIC
 endif
--- GlideV2/glide3x/cvg/init/sst1init.h.orig	2022-09-26 18:55:51.354408063 +0200
+++ GlideV2/glide3x/cvg/init/sst1init.h	2022-09-26 19:00:56.486088357 +0200
@@ -163,6 +163,18 @@ p6Fence(void);
 #elif defined (__GNUC__) && defined(__i386__)
 #  define P6FENCE asm("xchg %%eax,%0" : /*outputs*/ : "m" (p6FenceVar) : \
 					"eax");
+#elif defined(__ia64__)
+#define P6FENCE asm volatile ("mf.a" ::: "memory");
+#elif defined(__alpha__)
+# define P6FENCE asm volatile("mb" ::: "memory");
+#elif defined(__powerpc__)
+# define P6FENCE asm volatile ("sync" ::: "memory");
+#elif defined (__x86_64__)
+# define P6FENCE asm volatile("mfence" ::: "memory");
+#elif defined(__sparc64__)
+# define P6FENCE asm volatile("membar #LoadLoad | #LoadStore | #StoreStore | #StoreLoad" ::: "memory");
+#elif defined(__sparc__)
+# define P6FENCE asm volatile("" ::: "memory");
 #else
 #  error "P6 Fencing in-line assembler code needs to be added for this compiler"
 #endif  
--- GlideV2/glide3x/cvg/glide3/src/makefile.linux.orig	2000-04-20 23:26:39.000000000 +0200
+++ GlideV2/glide3x/cvg/glide3/src/makefile.linux	2013-09-21 14:30:15.403246286 +0200
@@ -144,7 +144,7 @@
 CFILES          =       gxdraw.c
 else
 CFILES          =       gxdraw.c
-ASMTRISETUP     =       xdraw2.S xdraw3.S
+ASMTRISETUP     =       xdraw2.S xdraw3.S cpudtect.S
 DSPOPTS         +=       -DGLIDE_PACKED_RGB=0 -DGLIDE_TRI_CULLING=1
 endif
 
@@ -193,7 +193,7 @@
 LAINCS          =       -I$(BUILD_ROOT)/$(FX_GLIDE_HW)/include
 LAOPTS          =       $(DBGOPTS) $(DSPOPTS) $(OPTOPTS)
 
-AFILES          =       $(ASMTRISETUP) cpudtect.S
+AFILES          =       $(ASMTRISETUP)
 
 # sources
 HEADERS         =       glide.h glidesys.h glideutl.h
--- GlideV2/glide3x/cvg/init/makefile.linux.orig	2000-04-20 23:26:36.000000000 +0200
+++ GlideV2/glide3x/cvg/init/makefile.linux	2013-09-21 10:33:25.196185785 +0200
@@ -52,5 +52,5 @@
 # for some strange reason
 #
 ifndef DEBUG
-CFLAGS = -g $(GCFLAGS) $(LCFLAGS) $(VCFLAGS)
+CFLAGS = -g $(GCFLAGS) $(LCFLAGS) $(VCFLAGS) -fPIC
 endif
--- GlideV2/glide3x/cvg/glide3/src/gdraw.c.orig	2013-09-22 19:48:44.822836076 +0200
+++ GlideV2/glide3x/cvg/glide3/src/gdraw.c	2013-09-23 19:53:38.014765302 +0200
@@ -243,7 +243,7 @@
     vlist[0] = (float *)a;
     vlist[1] = (float *)b;
     vlist[2] = (float *)c;
-    _grDrawTriangles(GR_VTX_PTR_ARRAY, 3, vlist);
+    _grDrawTriangles_Default(GR_VTX_PTR_ARRAY, 3, vlist);
   } else {
     /* 
     ** draw a simple triangle 
--- GlideV2/glide3x/cvg/glide3/src/gpci.c.orig	2000-04-20 23:26:39.000000000 +0200
+++ GlideV2/glide3x/cvg/glide3/src/gpci.c	2013-09-23 20:33:53.300359679 +0200
@@ -221,6 +221,16 @@
 /* Collection of all of the known procs for a given system */
 static GrTriSetupProc _triSetupProcs[][2][2] = 
 {
+#ifdef GLIDE_USE_C_TRISETUP
+  {
+    { NULL, NULL },
+    { NULL, _vptrisetup_cull }
+  },
+  {
+    { NULL, NULL },
+    { NULL, _vptrisetup_cull }
+  }
+#else
   /* Default Procs */
   {
     { _trisetup_Default_Default, _trisetup_Default_cull }, /* GR_WINDOW_COORDS */
@@ -233,10 +243,20 @@
     { _trisetup_clip_coor_thunk, _trisetup_clip_coor_thunk }, /* GR_CLIP_COORDS */
   },
 #endif /* GL_AMD3D */
+#endif
 };
 
+#ifdef GLIDE_USE_C_TRISETUP
+void FX_CSTYLE
+_grDrawVertexList(FxU32 pktype, FxU32 type, FxI32 mode, FxI32 count, void *pointers);
+#endif
+
 static GrVertexListProc _vertexListProcs[][2] = {
+#ifdef GLIDE_USE_C_TRISETUP
+  { _grDrawVertexList, _grDrawVertexList },
+#else
   { _drawvertexlist, _vpdrawvertexlist },
+#endif
 #if GL_AMD3D
   { _grDrawVertexList_3DNow_Window, _grDrawVertexList_3DNow_Clip }
 #endif /* GL_AMD3D */
@@ -577,7 +597,12 @@
 
   /* Setup the basic proc tables based on the cpu type. */
   {
-    _GlideRoot.CPUType = _cpu_detect_asm();
+    _GlideRoot.CPUType =
+#ifdef __i386__
+      _cpu_detect_asm();
+#else
+      0;
+#endif
     if (GETENV("FX_CPU")) _GlideRoot.CPUType = atoi(GETENV("FX_CPU"));
 
     /* Default case */