all that int16/int32 casting is messing it up I guess.
-plugins/dfxvideo/%.o: CFLAGS += -Wall
+# note: code is not safe for strict-aliasing? (Castlevania problems)
+plugins/dfxvideo/%.o: CFLAGS += -Wall -fno-strict-aliasing
OBJS += plugins/dfxvideo/gpu.o
plugins/dfxvideo/gpu.o: plugins/dfxvideo/fps.c plugins/dfxvideo/prim.c \
plugins/dfxvideo/gpu.c plugins/dfxvideo/soft.c
OBJS += plugins/dfxvideo/gpu.o
plugins/dfxvideo/gpu.o: plugins/dfxvideo/fps.c plugins/dfxvideo/prim.c \
plugins/dfxvideo/gpu.c plugins/dfxvideo/soft.c