--- /dev/null
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+TOPDIR ?= $(CURDIR)
+include $(DEVKITARM)/3ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#
+# NO_SMDH: if set to anything, no SMDH file is generated.
+# APP_TITLE is the name of the app stored in the SMDH file (Optional)
+# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
+# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
+# ICON is the filename of the icon (.png), relative to the project folder.
+# If not set, it attempts to use one of the following (in this order):
+# - <Project name>.png
+# - icon.png
+# - <libctru folder>/default_icon.png
+#---------------------------------------------------------------------------------
+TARGET := $(notdir $(CURDIR))
+BUILD := build
+SOURCES := source
+DATA := data
+INCLUDES := include
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH := -march=armv6k -mtune=mpcore -mfloat-abi=hard
+
+CFLAGS := -g -Wall -O2 -mword-relocations \
+ -fomit-frame-pointer -ffast-math \
+ $(ARCH)
+
+CFLAGS += $(INCLUDE) -DARM11 -D_3DS
+
+CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
+
+ASFLAGS := -g $(ARCH)
+LDFLAGS = -specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+LIBS := -lctru -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS := $(CTRULIB)
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT := $(CURDIR)/$(TARGET)
+export TOPDIR := $(CURDIR)
+
+export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+ $(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR := $(CURDIR)/$(BUILD)
+
+CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+ export LD := $(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+ export LD := $(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES := $(addsuffix .o,$(BINFILES)) \
+ $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+ $(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+ -I$(CURDIR)/$(BUILD)
+
+export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+ifeq ($(strip $(ICON)),)
+ icons := $(wildcard *.png)
+ ifneq (,$(findstring $(TARGET).png,$(icons)))
+ export APP_ICON := $(TOPDIR)/$(TARGET).png
+ else
+ ifneq (,$(findstring icon.png,$(icons)))
+ export APP_ICON := $(TOPDIR)/icon.png
+ endif
+ endif
+else
+ export APP_ICON := $(TOPDIR)/$(ICON)
+endif
+
+ifeq ($(strip $(NO_SMDH)),)
+ export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
+endif
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+
+$(BUILD):
+ @[ -d $@ ] || mkdir -p $@
+ @$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+ @echo clean ...
+ @rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS := $(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(NO_SMDH)),)
+$(OUTPUT).3dsx : $(OUTPUT).elf $(OUTPUT).smdh
+else
+$(OUTPUT).3dsx : $(OUTPUT).elf
+endif
+
+$(OUTPUT).elf : $(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o : %.bin
+#---------------------------------------------------------------------------------
+ @echo $(notdir $<)
+ @$(bin2o)
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
--- /dev/null
+#include <string.h>
+#include <malloc.h>
+#include <inttypes.h>
+#include <stdio.h>
+
+
+#include <3ds.h>
+
+Handle threadHandle, threadRequest;
+
+#define STACKSIZE (4 * 1024)
+
+volatile bool threadExit = false;
+
+volatile int threadcount=0;
+
+void threadMain(void *arg) {
+
+ while(1) {
+ svcWaitSynchronization(threadRequest, U64_MAX);
+ svcClearEvent(threadRequest);
+
+ if(threadExit) svcExitThread();
+
+ threadcount++;
+ }
+}
+
+int main(int argc, char** argv) {
+
+
+ gfxInitDefault();
+
+ consoleInit(GFX_TOP, NULL);
+
+
+ svcCreateEvent(&threadRequest,0);
+ u32 *threadStack = memalign(32, STACKSIZE);
+ Result ret = svcCreateThread(&threadHandle, threadMain, 0, &threadStack[STACKSIZE/4], 0x3f, 0);
+
+ printf("thread create returned %x\n", ret);
+
+ // Main loop
+ while (aptMainLoop())
+ {
+ gspWaitForVBlank();
+ hidScanInput();
+
+ printf("\x1b[5;0H");
+ printf("thread counter = %d\n",threadcount);
+
+ u32 kDown = hidKeysDown();
+ if (kDown & KEY_START)
+ break; // break in order to return to hbmenu
+
+ if (kDown * KEY_A)
+ svcSignalEvent(threadRequest);
+
+ // Flush and swap framebuffers
+ gfxFlushBuffers();
+ gfxSwapBuffers();
+ }
+
+ // tell thread to exit
+ threadExit = true;
+
+ // signal the thread
+ svcSignalEvent(threadRequest);
+
+ // give it time to exit
+ svcSleepThread(10000000ULL);
+
+ // close handles and free allocated stack
+ svcCloseHandle(threadRequest);
+ svcCloseHandle(threadHandle);
+ free(threadStack);
+
+
+ gfxExit();
+ return 0;
+}