diff -rupN yabasanshiro.orig/yabause/src/libretro/Makefile yabasanshiro/yabause/src/libretro/Makefile
--- yabasanshiro.orig/yabause/src/libretro/Makefile	2022-02-27 14:51:53.958685169 -0500
+++ yabasanshiro/yabause/src/libretro/Makefile	2022-02-27 14:57:08.993824415 -0500
@@ -155,11 +155,12 @@ else ifneq (,$(findstring rockpro64,$(pl
 	SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
 	LDFLAGS += -lpthread
 	ARCH_IS_LINUX = 1
+        FLAGS += -DAARCH64
 	HAVE_SSE = 0
 	FORCE_GLES = 1
-	USE_ARM_DRC = 1
+        USE_AARCH64_DRC = 1
 	DYNAREC_DEVMIYAX = 1
-	FLAGS += -march=armv8-a+crc -mcpu=cortex-a72 -mtune=cortex-a72.cortex-a53 -mfloat-abi=hard -mfpu=neon-vfpv4 -mvectorize-with-neon-quad
+	FLAGS += -march=armv8-a+crc -mcpu=cortex-a72 -mtune=cortex-a72.cortex-a53
 
 # Rpi4 (64-bit)
 else ifeq ($(platform), rpi4)