diff -aurN a/SamTFE/Sources/CMakeLists.txt b/SamTFE/Sources/CMakeLists.txt
--- a/SamTFE/Sources/CMakeLists.txt	2022-05-29 23:38:44.637615000 +0300
+++ b/SamTFE/Sources/CMakeLists.txt	2022-06-01 14:15:52.118403541 +0300
@@ -278,6 +278,11 @@
     add_definitions(-DPLATFORM_PYRA=1)
 endif()
 
+option(RPI4 "Raspberry PI 4" FALSE)
+if(RPI4)
+    add_definitions(-DPLATFORM_RPI4=1)
+endif()
+
 option(USE_TREMOR "Use Tremor instead of Vorbis" FALSE)
 if (USE_TREMOR)
     add_definitions(-DUSE_TREMOR=1)
diff -aurN a/SamTFE/Sources/Engine/Base/Timer.cpp b/SamTFE/Sources/Engine/Base/Timer.cpp
--- a/SamTFE/Sources/Engine/Base/Timer.cpp	2022-05-29 23:18:11.604401775 +0300
+++ b/SamTFE/Sources/Engine/Base/Timer.cpp	2022-06-01 14:55:04.242015242 +0300
@@ -53,7 +53,7 @@
   }
   return mmRet;
 
-#elif (defined __GNU_INLINE_X86_32__ )
+#elif (defined __GNU_INLINE_X86_32__ ) && !defined(PLATFORM_RPI4)
   __int64 mmRet;
   __asm__ __volatile__ (
     "rdtsc                    \n\t"
@@ -64,7 +64,7 @@
         : "memory", "eax", "edx"
   );
   return(mmRet);
-#elif (defined __GNU_INLINE_X86_64__ )
+#elif (defined __GNU_INLINE_X86_64__ ) && !defined(PLATFORM_RPI4)
     uint64_t x;
     asm volatile (
         ".intel_syntax noprefix  \n\t" // switch to prettier syntax
@@ -89,6 +89,18 @@
         :                // input operands
         : "rdx");        // additional clobbers (with cpuid also: rbx, rcx)
     return x;
+#elif (defined PLATFORM_RPI4)
+    // TODO: Raspberry PI 4
+    volatile unsigned cc;
+    static int init = 0;
+    if(!init) {
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 2" :: "r"(1<<31)); /* stop the cc */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 0" :: "r"(5));     /* initialize */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31)); /* start the cc */
+         init = 1;
+    }
+    __asm__ __volatile__ ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
+    return (uint64_t)cc;
 #else
   #error Please implement for your platform/compiler.
 #endif
@@ -121,7 +133,8 @@
 void cpu_rdtsc(uint64_t* result)
 {
 	uint32_t low_part, hi_part;
-#if defined( __GNU_INLINE_X86_32__ ) || defined( __GNU_INLINE_X86_64__ )
+
+#if (defined( __GNU_INLINE_X86_32__ ) || defined( __GNU_INLINE_X86_64__ )) && !defined(PLATFORM_RPI4)
 	__asm __volatile (
 		"	rdtsc\n"
 		"	mov	%%eax,	%0\n"
@@ -137,6 +150,19 @@
 		mov	low_part,	eax
 		mov	hi_part,	edx
 	};
+#elif (defined PLATFORM_RPI4)
+    // TODO: Raspberry PI 4
+    volatile unsigned cc;
+    static int init = 0;
+    if(!init) {
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 2" :: "r"(1<<31)); /* stop the cc */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 0" :: "r"(5));     /* initialize */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31)); /* start the cc */
+         init = 1;
+    }
+    __asm__ __volatile__ ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
+    *result = (uint64_t)сс;
+    return;
 #else
 #    error "Unsupported compiler"
 #endif
diff -aurN a/SamTSE/Sources/CMakeLists.txt b/SamTSE/Sources/CMakeLists.txt
--- a/SamTSE/Sources/CMakeLists.txt	2022-05-29 23:38:44.637615000 +0300
+++ b/SamTSE/Sources/CMakeLists.txt	2022-06-01 14:15:52.118403541 +0300
@@ -278,6 +278,11 @@
     add_definitions(-DPLATFORM_PYRA=1)
 endif()
 
+option(RPI4 "Raspberry PI 4" FALSE)
+if(RPI4)
+    add_definitions(-DPLATFORM_RPI4=1)
+endif()
+
 option(USE_TREMOR "Use Tremor instead of Vorbis" FALSE)
 if (USE_TREMOR)
     add_definitions(-DUSE_TREMOR=1)
diff -aurN a/SamTSE/Sources/Engine/Base/Timer.cpp b/SamTSE/Sources/Engine/Base/Timer.cpp
--- a/SamTSE/Sources/Engine/Base/Timer.cpp	2022-05-29 23:18:11.604401775 +0300
+++ b/SamTSE/Sources/Engine/Base/Timer.cpp	2022-06-01 14:55:04.242015242 +0300
@@ -53,7 +53,7 @@
   }
   return mmRet;
 
-#elif (defined __GNU_INLINE_X86_32__ )
+#elif (defined __GNU_INLINE_X86_32__ ) && !defined(PLATFORM_RPI4)
   __int64 mmRet;
   __asm__ __volatile__ (
     "rdtsc                    \n\t"
@@ -64,7 +64,7 @@
         : "memory", "eax", "edx"
   );
   return(mmRet);
-#elif (defined __GNU_INLINE_X86_64__ )
+#elif (defined __GNU_INLINE_X86_64__ ) && !defined(PLATFORM_RPI4)
     uint64_t x;
     asm volatile (
         ".intel_syntax noprefix  \n\t" // switch to prettier syntax
@@ -89,6 +89,18 @@
         :                // input operands
         : "rdx");        // additional clobbers (with cpuid also: rbx, rcx)
     return x;
+#elif (defined PLATFORM_RPI4)
+    // TODO: Raspberry PI 4
+    volatile unsigned cc;
+    static int init = 0;
+    if(!init) {
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 2" :: "r"(1<<31)); /* stop the cc */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 0" :: "r"(5));     /* initialize */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31)); /* start the cc */
+         init = 1;
+    }
+    __asm__ __volatile__ ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
+    return (uint64_t)cc;
 #else
   #error Please implement for your platform/compiler.
 #endif
@@ -121,7 +133,8 @@
 void cpu_rdtsc(uint64_t* result)
 {
 	uint32_t low_part, hi_part;
-#if defined( __GNU_INLINE_X86_32__ ) || defined( __GNU_INLINE_X86_64__ )
+
+#if (defined( __GNU_INLINE_X86_32__ ) || defined( __GNU_INLINE_X86_64__ )) && !defined(PLATFORM_RPI4)
 	__asm __volatile (
 		"	rdtsc\n"
 		"	mov	%%eax,	%0\n"
@@ -137,6 +150,19 @@
 		mov	low_part,	eax
 		mov	hi_part,	edx
 	};
+#elif (defined PLATFORM_RPI4)
+    // TODO: Raspberry PI 4
+    volatile unsigned cc;
+    static int init = 0;
+    if(!init) {
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 2" :: "r"(1<<31)); /* stop the cc */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 0" :: "r"(5));     /* initialize */
+         __asm__ __volatile__ ("mcr p15, 0, %0, c9, c12, 1" :: "r"(1<<31)); /* start the cc */
+         init = 1;
+    }
+    __asm__ __volatile__ ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
+    *result = (uint64_t)сс;
+    return;
 #else
 #    error "Unsupported compiler"
 #endif