Apbp fix

dspapbptester/.gitignore

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+*.3dsx
+*.elf
+*.cxi
+*.cia
+build/
+hide/
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac crap
+.DS_Store
+

dspapbptester/Makefile

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+#---------------------------------------------------------------------------------
+.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
+# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional)
+#---------------------------------------------------------------------------------
+TARGET		:=	$(notdir $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source
+DATA		:=	data
+INCLUDES	:=	include
+#ROMFS		:=	romfs
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations \
+			-fomit-frame-pointer -ffunction-sections \
+			$(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	:= $(CTRULIB)
+
+
+ifneq ($(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)))
+PICAFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
+SHLISTFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
+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)) \
+			$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \
+			$(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)
+
+.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).cxi $(TARGET).cia $(TARGET).elf
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+all: $(OUTPUT).3dsx $(OUTPUT).cia
+
+ifeq ($(strip $(NO_SMDH)),)
+$(OUTPUT).3dsx	:	$(OUTPUT).elf $(OUTPUT).smdh
+else
+$(OUTPUT).3dsx	:	$(OUTPUT).elf
+endif
+
+$(OUTPUT).cia   :	$(OUTPUT).cxi
+	@makerom -f cia -o $(OUTPUT).cia -target t -i $(OUTPUT).cxi:0:0
+	@echo built ... $(OUTPUT).cia
+
+$(OUTPUT).cxi   :   $(OUTPUT).elf $(OUTPUT).smdh $(TOPDIR)/rsf.rsf $(TOPDIR)/banner.bnr
+	@makerom -o $(OUTPUT).cxi -rsf $(TOPDIR)/rsf.rsf -target t -elf $(OUTPUT).elf -icon $(OUTPUT).smdh -banner $(TOPDIR)/banner.bnr
+	@echo built ... $(OUTPUT).cxi
+
+$(OUTPUT).elf	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+#---------------------------------------------------------------------------------
+# rules for assembling GPU shaders
+#---------------------------------------------------------------------------------
+define shader-as
+	$(eval CURBIN := $(patsubst %.shbin.o,%.shbin,$(notdir $@)))
+	picasso -o $(CURBIN) $1
+	bin2s $(CURBIN) | $(AS) -o $@
+	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(CURBIN) | tr . _)`.h
+	echo "extern const u8" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(CURBIN) | tr . _)`.h
+	echo "extern const u32" `(echo $(CURBIN) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(CURBIN) | tr . _)`.h
+endef
+
+%.shbin.o : %.v.pica %.g.pica
+	@echo $(notdir $^)
+	@$(call shader-as,$^)
+
+%.shbin.o : %.v.pica
+	@echo $(notdir $<)
+	@$(call shader-as,$<)
+
+%.shbin.o : %.shlist
+	@echo $(notdir $<)
+	@$(call shader-as,$(foreach file,$(shell cat $<),$(dir $<)/$(file)))
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------

dspapbptester/firm/source

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+segment p 0000
+br 0x00000000 always // reset vector
+data 0800
+reti always
+data 0000
+reti always
+data 0000
+br 0x00000000 always // int0
+data 5000
+data 0000
+data 0000
+data 0000
+data 0000
+data 0000
+data 0000
+reti always // int1
+data 0000
+data 0000
+data 0000
+data 0000
+data 0000
+data 0000
+data 0000
+reti always // int2
+
+segment p 0800 // init
+mov 0x0000 sp // set stack pointer
+data 0xF000
+mov 0x0000 mod3 // enable interrupt
+data 0x0180
+load 0x0082u8 page // configure ICU
+mov 0x0000 r0
+data 0x4000
+mov r0 [page:0x000eu8]
+mov r0 [page:0x0010u8]
+mov r0 [page:0x0006u8] // enable apbp as int0
+br 0x00000000 always
+data 0x1000
+
+segment p 1000 // Main loop
+load 0x0000u8 page
+
+mov 0x0000 r0 // transfer APBP register
+data 0x80CC
+mov [r0++] r1
+mov r1 [page:0x0005u8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x0006u8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x0007u8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x0008u8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x0009u8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x000au8]
+modr [r0++]
+mov [r0++] r1
+mov r1 [page:0x000bu8]
+modr [r0++]
+
+
+mov [page:0x0000u8] b0l // get signal
+br 0x00000000 eq // loop back if no signal
+data 1000
+
+mov [page:0x0001u8] b0l // get command type
+
+cmpv 0x0000 b0l
+data 0000
+br 0x00000000 eq
+data 2000
+
+cmpv 0x0000 b0l
+data 0001
+br 0x00000000 eq
+data 3000
+
+br 0x00000000 always
+data 4000
+
+segment p 2000 // read
+mov [page:0x0002u8] r0
+mov [r0] r1
+mov r1 [page:0x0003u8]
+br 0x00000000 always
+data 4000
+
+segment p 3000 // write
+mov [page:0x0002u8] r0
+mov [page:0x0003u8] r1
+mov r1 [r0]
+br 0x00000000 always
+data 4000
+
+segment p 4000 // end
+clr b0 always
+mov b0l [page:0x0000u8] // clear signal
+br 0x00000000 always
+data 1000 // loop back
+
+segment p 5000 // interrupt handler
+mov 0x0000 r5
+data 0x4000
+mov 0x0000 r4
+data 0x8202
+mov r5 [r4] // ack
+mov 0x0000 r4
+data 0x0004
+mov [r4] r5
+modr [r5++]
+mov r5 [r4]
+reti always
+
+
+
+
+segment d 0000 // signal area
+data 0000 // 0, Start signal
+data 0000 // 1, Operation type
+data 0000 // 2, Address
+data 0000 // 3, Data
+data 0000 // 4, interrupt counter
+data 0000 // 5, 80CC
+data 0000 // 6, 80CE
+data 0000 // 7, 80D0
+data 0000 // 8, 80D2
+data 0000 // 9, 80D4
+data 0000 // A, 80D6
+data 0000 // B, 80D8