userspace: add SIMD test application

Signed-off-by: EnderIce2 <enderice2@protonmail.com>

Userspace/apps/test/simd_test/.gitignore

@@ -0,0 +1 @@
+simd_test

Userspace/apps/test/simd_test/Makefile

@@ -0,0 +1,36 @@
+default:
+	$(error Do not run this Makefile directly!)
+
+S_SOURCES = $(shell find ./ -type f -name '*.S')
+C_SOURCES = $(shell find ./ -type f -name '*.c')
+CXX_SOURCES = $(shell find ./ -type f -name '*.cpp')
+
+OBJ = $(S_SOURCES:.S=.o) $(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o)
+
+FILENAME = $(notdir $(shell pwd))
+WARNCFLAG = -Wall -Wextra
+
+build: $(FILENAME)
+	cp $(FILENAME) $(WORKSPACE_DIR)/out/bin/$(FILENAME)
+
+# Use static linking
+LDFLAGS += -static -fno-pic -fno-pie -Wl,-static
+
+$(FILENAME): $(OBJ)
+	$(info Linking $@)
+	$(CC) $(LDFLAGS) $(SYSROOT) $(OBJ) -o $@
+
+%.o: %.c $(HEADERS)
+	$(info Compiling $<)
+	$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
+
+%.o: %.cpp $(HEADERS)
+	$(info Compiling $<)
+	$(CXX) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fexceptions -c $< -o $@ -fno-rtti
+
+%.o: %.S
+	$(info Compiling $<)
+	$(AS) -o $@ $<
+
+clean:
+	rm -f $(OBJ) $(FILENAME)

Userspace/apps/test/simd_test/simd.c

@@ -0,0 +1,11 @@
+int main(int, char *argv[], char *[])
+{
+#if defined(__amd64__) || defined(__i386__)
+	__asm__ __volatile__("movaps (%0), %%xmm0\n"
+						 "movaps %%xmm0, (%0)\n"
+						 : : "r"(argv) : "memory");
+#else
+#warning "Unimplemented"
+#endif
+	return 0;
+}