mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-28 01:20:58 +01:00
exo: add sdmmc test program
This commit is contained in:
Michael Scire
parent
a0f1971353
commit
b2f4e0c1b4
108
exosphere/sdmmc_test/Makefile
Normal file
108
exosphere/sdmmc_test/Makefile
Normal file
@ -0,0 +1,108 @@
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#---------------------------------------------------------------------------------
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# Define the atmosphere board and cpu
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#---------------------------------------------------------------------------------
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export ATMOSPHERE_BOARD := nx-hac-001
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export ATMOSPHERE_CPU := arm7tdmi
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#---------------------------------------------------------------------------------
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# pull in common atmosphere configuration
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#---------------------------------------------------------------------------------
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include $(dir $(abspath $(lastword $(MAKEFILE_LIST))))/../../libraries/config/templates/exosphere.mk
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#---------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#---------------------------------------------------------------------------------
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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#---------------------------------------------------------------------------------
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export OUTPUT := $(CURDIR)/$(TARGET)
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export TOPDIR := $(CURDIR)
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export DEPSDIR := $(CURDIR)/$(BUILD)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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CFILES := $(call FIND_SOURCE_FILES,$(SOURCES),c)
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CPPFILES := $(call FIND_SOURCE_FILES,$(SOURCES),cpp)
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SFILES := $(call FIND_SOURCE_FILES,$(SOURCES),s)
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(CPPFILES)),)
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#---------------------------------------------------------------------------------
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export LD := $(CC)
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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export LD := $(CXX)
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#---------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------
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export OFILES_BIN := $(addsuffix .o,$(BINFILES))
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export OFILES_SRC := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
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export OFILES := $(OFILES_BIN) $(OFILES_SRC)
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export HFILES_BIN := $(addsuffix .h,$(subst .,_,$(subst -,_,$(BINFILES))))
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export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I.
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export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib -L$(dir)/$(ATMOSPHERE_LIBRARY_DIR))
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.PHONY: $(BUILD) clean all
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#---------------------------------------------------------------------------------
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all: $(BUILD) check_libexo
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$(BUILD): check_libexo
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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check_libexo:
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@$(MAKE) --no-print-directory -C ../../libraries/libexosphere arm
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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@rm -fr $(BUILD) $(OUTPUT).bin $(OUTPUT).elf *.lz4
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#---------------------------------------------------------------------------------
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else
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.PHONY: all
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DEPENDS := $(OFILES:.o=.d)
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#---------------------------------------------------------------------------------
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# main targets
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#---------------------------------------------------------------------------------
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all : $(OUTPUT).bin
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$(OUTPUT).bin : $(OUTPUT).elf
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$(OBJCOPY) -S -O binary --set-section-flags .bss=alloc,load,contents $< $@
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@echo built ... $(notdir $@)
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$(OUTPUT).elf : $(OFILES) ../../../libraries/libexosphere/$(ATMOSPHERE_LIBRARY_DIR)/libexosphere.a
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%.elf:
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@echo linking $(notdir $@)
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$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
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@$(NM) -CSn $@ > $(notdir $*.lst)
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$(OFILES_SRC) : $(HFILES_BIN)
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#---------------------------------------------------------------------------------
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# you need a rule like this for each extension you use as binary data
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#---------------------------------------------------------------------------------
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%.bin.o %_bin.h: %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(bin2o)
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-include $(DEPENDS)
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#---------------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------------
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194
exosphere/sdmmc_test/sdmmc_test.ld
Normal file
194
exosphere/sdmmc_test/sdmmc_test.ld
Normal file
@ -0,0 +1,194 @@
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OUTPUT_ARCH(arm)
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ENTRY(_ZN3ams10sdmmc_test5StartEv)
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MEMORY
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{
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NULL : ORIGIN = 0, LENGTH = 4K
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test_fw : ORIGIN = 0x40010000, LENGTH = 32K
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}
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SECTIONS
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{
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/* =========== CODE section =========== */
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PROVIDE(__start__ = ORIGIN(test_fw));
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. = __start__;
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__code_start = . ;
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.crt0 :
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{
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KEEP (*(.crt0 .crt0.*))
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. = ALIGN(8);
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} >test_fw
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.vectors :
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{
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KEEP (*(.vectors .vectors.*))
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. = ALIGN(8);
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} >test_fw
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.text :
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{
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*(.text.unlikely .text.*_unlikely .text.unlikely.*)
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*(.text.exit .text.exit.*)
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*(.text.startup .text.startup.*)
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*(.text.hot .text.hot.*)
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*(.text .stub .text.* .gnu.linkonce.t.*)
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. = ALIGN(8);
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} >test_fw
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.init :
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{
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KEEP( *(.init) )
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. = ALIGN(8);
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} >test_fw
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.plt :
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{
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*(.plt)
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*(.iplt)
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. = ALIGN(8);
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} >test_fw
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.fini :
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{
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KEEP( *(.fini) )
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. = ALIGN(8);
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} >test_fw
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/* =========== RODATA section =========== */
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. = ALIGN(8);
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__rodata_start = . ;
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.rodata :
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{
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*(.rodata .rodata.* .gnu.linkonce.r.*)
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. = ALIGN(8);
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} >test_fw
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.eh_frame_hdr : { __eh_frame_hdr_start = .; *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) __eh_frame_hdr_end = .; } >test_fw
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.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) } >test_fw
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.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) } >test_fw
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.gnu_extab : ONLY_IF_RO { *(.gnu_extab*) } >test_fw
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.hash : { *(.hash) } >test_fw
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/* =========== DATA section =========== */
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. = ALIGN(8);
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__data_start = . ;
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.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) } >test_fw
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.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } >test_fw
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.gnu_extab : ONLY_IF_RW { *(.gnu_extab*) } >test_fw
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.exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } >test_fw
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.preinit_array ALIGN(8) :
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{
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PROVIDE (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE (__preinit_array_end = .);
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} >test_fw
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.init_array ALIGN(8) :
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{
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PROVIDE (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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PROVIDE (__init_array_end = .);
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} >test_fw
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.fini_array ALIGN(8) :
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{
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PROVIDE (__fini_array_start = .);
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE (__fini_array_end = .);
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} >test_fw
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.ctors ALIGN(8) :
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{
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KEEP (*crtbegin.o(.ctors)) /* MUST be first -- GCC requires it */
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} >test_fw
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.dtors ALIGN(8) :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} >test_fw
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__got_start__ = .;
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.got : { *(.got) *(.igot) } >test_fw
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.got.plt : { *(.got.plt) *(.igot.plt) } >test_fw
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__got_end__ = .;
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.data ALIGN(8) :
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{
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*(.data .data.* .gnu.linkonce.d.*)
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SORT(CONSTRUCTORS)
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} >test_fw
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__bss_start__ = .;
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.bss ALIGN(8) :
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{
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(16);
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} >test_fw
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__bss_end__ = .;
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__end__ = ABSOLUTE(.) ;
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__total_size__ = (__end__ - __start__);
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__stack_top__ = 0x40031000;
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__stack_bottom__ = 0x40030000;
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/* ==================
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==== Metadata ====
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================== */
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/* Discard sections that difficult post-processing */
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/DISCARD/ : { *(.group .comment .note .interp) }
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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}
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7
exosphere/sdmmc_test/sdmmc_test.specs
Normal file
7
exosphere/sdmmc_test/sdmmc_test.specs
Normal file
@ -0,0 +1,7 @@
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%rename link old_link
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*link:
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%(old_link) -T %:getenv(TOPDIR /sdmmc_test.ld) --gc-sections --nmagic -nostdlib -nostartfiles
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*startfile:
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crti%O%s crtbegin%O%s
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93
exosphere/sdmmc_test/source/sdmmc_test_main.cpp
Normal file
93
exosphere/sdmmc_test/source/sdmmc_test_main.cpp
Normal file
@ -0,0 +1,93 @@
|
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/*
|
||||
* Copyright (c) 2018-2020 Atmosphère-NX
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include <exosphere.hpp>
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namespace ams::sdmmc_test {
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namespace {
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constexpr inline const uintptr_t PMC = secmon::MemoryRegionPhysicalDevicePmc.GetAddress();
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constexpr inline auto Port = sdmmc::Port_Mmc0;
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alignas(8) constinit u8 g_mmc_work_buffer[sdmmc::MmcWorkBufferSize];
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constexpr inline u32 SectorIndex = 0;
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constexpr inline u32 SectorCount = 2;
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NORETURN void PmcMainReboot() {
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/* Write enable to MAIN_RESET. */
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reg::Write(PMC + APBDEV_PMC_CNTRL, PMC_REG_BITS_ENUM(CNTRL_MAIN_RESET, ENABLE));
|
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|
||||
/* Wait forever until we're reset. */
|
||||
AMS_INFINITE_LOOP();
|
||||
}
|
||||
|
||||
void CheckResult(const Result result) {
|
||||
volatile u32 * const DEBUG = reinterpret_cast<volatile u32 *>(0x4003C000);
|
||||
if (R_FAILED(result)) {
|
||||
DEBUG[1] = result.GetValue();
|
||||
PmcMainReboot();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void Main() {
|
||||
/* Debug signaler. */
|
||||
volatile u32 * const DEBUG = reinterpret_cast<volatile u32 *>(0x4003C000);
|
||||
DEBUG[0] = 0;
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||||
DEBUG[1] = 0xAAAAAAAA;
|
||||
|
||||
/* Initialize sdmmc library. */
|
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sdmmc::Initialize(Port);
|
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DEBUG[0] = 1;
|
||||
|
||||
sdmmc::SetMmcWorkBuffer(Port, g_mmc_work_buffer, sizeof(g_mmc_work_buffer));
|
||||
DEBUG[0] = 2;
|
||||
|
||||
Result result = sdmmc::Activate(Port);
|
||||
DEBUG[0] = 3;
|
||||
CheckResult(result);
|
||||
|
||||
/* Select user data partition. */
|
||||
result = sdmmc::SelectMmcPartition(Port, sdmmc::MmcPartition_UserData);
|
||||
DEBUG[0] = 4;
|
||||
CheckResult(result);
|
||||
|
||||
/* Read the first two sectors from disk. */
|
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void * const sector_dst = reinterpret_cast<void *>(0x40038000);
|
||||
result = sdmmc::Read(sector_dst, SectorCount * sdmmc::SectorSize, Port, SectorIndex, SectorCount);
|
||||
DEBUG[0] = 5;
|
||||
CheckResult(result);
|
||||
|
||||
/* Perform a reboot. */
|
||||
DEBUG[1] = 0;
|
||||
PmcMainReboot();
|
||||
}
|
||||
|
||||
NORETURN void ExceptionHandler() {
|
||||
PmcMainReboot();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
namespace ams::diag {
|
||||
|
||||
void AbortImpl() {
|
||||
sdmmc_test::ExceptionHandler();
|
||||
}
|
||||
|
||||
}
|
||||
37
exosphere/sdmmc_test/source/sdmmc_test_start.s
Normal file
37
exosphere/sdmmc_test/source/sdmmc_test_start.s
Normal file
@ -0,0 +1,37 @@
|
||||
/*
|
||||
* Copyright (c) 2018-2020 Atmosphère-NX
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
.section .crt0.text._ZN3ams10sdmmc_test5StartEv, "ax", %progbits
|
||||
.align 3
|
||||
.global _ZN3ams10sdmmc_test5StartEv
|
||||
_ZN3ams10sdmmc_test5StartEv:
|
||||
/* Switch to system mode, mask all interrupts, clear all flags */
|
||||
msr cpsr_cxsf, #0xDF
|
||||
|
||||
/* Set the stack pointer. */
|
||||
ldr sp, =__stack_top__
|
||||
|
||||
/* Set our link register to the exception handler. */
|
||||
ldr lr, =_ZN3ams10sdmmc_test16ExceptionHandlerEv
|
||||
|
||||
/* Call init array functions. */
|
||||
bl __libc_init_array
|
||||
|
||||
/* Invoke main. */
|
||||
b _ZN3ams10sdmmc_test4MainEv
|
||||
|
||||
/* Infinite loop. */
|
||||
2: b 2b
|
||||
@ -30,7 +30,7 @@ _ZN3ams8warmboot5StartEv:
|
||||
|
||||
/* Invoke main. */
|
||||
ldr r0, =_metadata
|
||||
bl _ZN3ams8warmboot4MainEPKNS0_8MetadataE
|
||||
b _ZN3ams8warmboot4MainEPKNS0_8MetadataE
|
||||
|
||||
/* Infinite loop. */
|
||||
1: b 1b
|
||||
@ -112,6 +112,7 @@ $(OFILES) : $(GCH_FILES)
|
||||
$(OFILES_SRC) : $(HFILES_BIN)
|
||||
|
||||
libc.o: CFLAGS += -fno-builtin -fno-lto
|
||||
libgcc_division.arch.arm.o: CFLAGS += -fno-builtin -fno-lto
|
||||
|
||||
#---------------------------------------------------------------------------------
|
||||
%_bin.h %.bin.o : %.bin
|
||||
|
||||
27
libraries/libexosphere/source/libc/libexo_cxx.cpp
Normal file
27
libraries/libexosphere/source/libc/libexo_cxx.cpp
Normal file
@ -0,0 +1,27 @@
|
||||
/*
|
||||
* Copyright (c) 2018-2020 Atmosphère-NX
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||||
* more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
#include <exosphere.hpp>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* cxx implementation details to be stubbed here, as needed. */
|
||||
void __cxa_pure_virtual() { AMS_ABORT("pure virtual function call"); }
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
160
libraries/libexosphere/source/libc/libgcc_division.arch.arm.c
Normal file
160
libraries/libexosphere/source/libc/libgcc_division.arch.arm.c
Normal file
@ -0,0 +1,160 @@
|
||||
// SPDX-License-Identifier: BSD-2-Clause
|
||||
/*
|
||||
* Copyright (c) 2014, STMicroelectronics International N.V.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Form ABI specifications:
|
||||
* int __aeabi_idiv(int numerator, int denominator);
|
||||
* unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator);
|
||||
*
|
||||
* typedef struct { int quot; int rem; } idiv_return;
|
||||
* typedef struct { unsigned quot; unsigned rem; } uidiv_return;
|
||||
*
|
||||
* __value_in_regs idiv_return __aeabi_idivmod(int numerator,
|
||||
* int *denominator);
|
||||
* __value_in_regs uidiv_return __aeabi_uidivmod(unsigned *numerator,
|
||||
* unsigned denominator);
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
/* struct qr - stores qutient/remainder to handle divmod EABI interfaces. */
|
||||
struct qr {
|
||||
unsigned q; /* computed quotient */
|
||||
unsigned r; /* computed remainder */
|
||||
unsigned q_n; /* specficies if quotient shall be negative */
|
||||
unsigned r_n; /* specficies if remainder shall be negative */
|
||||
};
|
||||
|
||||
static void uint_div_qr(unsigned numerator, unsigned denominator,
|
||||
struct qr *qr);
|
||||
|
||||
/* returns in R0 and R1 by tail calling an asm function */
|
||||
unsigned __aeabi_uidivmod(unsigned numerator, unsigned denominator);
|
||||
|
||||
unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator);
|
||||
|
||||
/* returns in R0 and R1 by tail calling an asm function */
|
||||
signed __aeabi_idivmod(signed numerator, signed denominator);
|
||||
|
||||
signed __aeabi_idiv(signed numerator, signed denominator);
|
||||
|
||||
/*
|
||||
* __ste_idivmod_ret_t __aeabi_idivmod(signed numerator, signed denominator)
|
||||
* Numerator and Denominator are received in R0 and R1.
|
||||
* Where __ste_idivmod_ret_t is returned in R0 and R1.
|
||||
*
|
||||
* __ste_uidivmod_ret_t __aeabi_uidivmod(unsigned numerator,
|
||||
* unsigned denominator)
|
||||
* Numerator and Denominator are received in R0 and R1.
|
||||
* Where __ste_uidivmod_ret_t is returned in R0 and R1.
|
||||
*/
|
||||
#ifdef __GNUC__
|
||||
signed ret_idivmod_values(signed quotient, signed remainder);
|
||||
unsigned ret_uidivmod_values(unsigned quotient, unsigned remainder);
|
||||
#else
|
||||
#error "Compiler not supported"
|
||||
#endif
|
||||
|
||||
static void division_qr(unsigned n, unsigned p, struct qr *qr)
|
||||
{
|
||||
unsigned i = 1, q = 0;
|
||||
if (p == 0) {
|
||||
qr->r = 0xFFFFFFFF; /* division by 0 */
|
||||
return;
|
||||
}
|
||||
|
||||
while ((p >> 31) == 0) {
|
||||
i = i << 1; /* count the max division steps */
|
||||
p = p << 1; /* increase p until it has maximum size*/
|
||||
}
|
||||
|
||||
while (i > 0) {
|
||||
q = q << 1; /* write bit in q at index (size-1) */
|
||||
if (n >= p)
|
||||
{
|
||||
n -= p;
|
||||
q++;
|
||||
}
|
||||
p = p >> 1; /* decrease p */
|
||||
i = i >> 1; /* decrease remaining size in q */
|
||||
}
|
||||
qr->r = n;
|
||||
qr->q = q;
|
||||
}
|
||||
|
||||
static void uint_div_qr(unsigned numerator, unsigned denominator, struct qr *qr)
|
||||
{
|
||||
|
||||
division_qr(numerator, denominator, qr);
|
||||
|
||||
/* negate quotient and/or remainder according to requester */
|
||||
if (qr->q_n)
|
||||
qr->q = -qr->q;
|
||||
if (qr->r_n)
|
||||
qr->r = -qr->r;
|
||||
}
|
||||
|
||||
unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator)
|
||||
{
|
||||
struct qr qr = { .q_n = 0, .r_n = 0 };
|
||||
|
||||
uint_div_qr(numerator, denominator, &qr);
|
||||
|
||||
return qr.q;
|
||||
}
|
||||
|
||||
unsigned __aeabi_uidivmod(unsigned numerator, unsigned denominator)
|
||||
{
|
||||
struct qr qr = { .q_n = 0, .r_n = 0 };
|
||||
|
||||
uint_div_qr(numerator, denominator, &qr);
|
||||
|
||||
return ret_uidivmod_values(qr.q, qr.r);
|
||||
}
|
||||
|
||||
signed __aeabi_idiv(signed numerator, signed denominator)
|
||||
{
|
||||
struct qr qr = { .q_n = 0, .r_n = 0 };
|
||||
|
||||
if (((numerator < 0) && (denominator > 0)) ||
|
||||
((numerator > 0) && (denominator < 0)))
|
||||
qr.q_n = 1; /* quotient shall be negate */
|
||||
if (numerator < 0) {
|
||||
numerator = -numerator;
|
||||
qr.r_n = 1; /* remainder shall be negate */
|
||||
}
|
||||
if (denominator < 0)
|
||||
denominator = -denominator;
|
||||
|
||||
uint_div_qr(numerator, denominator, &qr);
|
||||
|
||||
return qr.q;
|
||||
}
|
||||
|
||||
signed __aeabi_idivmod(signed numerator, signed denominator)
|
||||
{
|
||||
struct qr qr = { .q_n = 0, .r_n = 0 };
|
||||
|
||||
if (((numerator < 0) && (denominator > 0)) ||
|
||||
((numerator > 0) && (denominator < 0)))
|
||||
qr.q_n = 1; /* quotient shall be negate */
|
||||
if (numerator < 0) {
|
||||
numerator = -numerator;
|
||||
qr.r_n = 1; /* remainder shall be negate */
|
||||
}
|
||||
if (denominator < 0)
|
||||
denominator = -denominator;
|
||||
|
||||
uint_div_qr(numerator, denominator, &qr);
|
||||
|
||||
return ret_idivmod_values(qr.q, qr.r);
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
@ -0,0 +1,30 @@
|
||||
/* SPDX-License-Identifier: BSD-2-Clause */
|
||||
/*
|
||||
* Copyright (c) 2014, STMicroelectronics International N.V.
|
||||
*/
|
||||
|
||||
/*
|
||||
* signed ret_idivmod_values(signed quot, signed rem);
|
||||
* return quotient and remaining the EABI way (regs r0,r1)
|
||||
*/
|
||||
.section .text.ret_idivmod_values, "ax", %progbits
|
||||
.globl ret_idivmod_values
|
||||
.align 0
|
||||
.syntax unified
|
||||
ret_idivmod_values:
|
||||
bx lr
|
||||
.type ret_idivmod_values, %function
|
||||
.size ret_idivmod_values, .-ret_idivmod_values
|
||||
|
||||
/*
|
||||
* unsigned ret_uidivmod_values(unsigned quot, unsigned rem);
|
||||
* return quotient and remaining the EABI way (regs r0,r1)
|
||||
*/
|
||||
.section .text.ret_uidivmod_values, "ax", %progbits
|
||||
.globl ret_uidivmod_values
|
||||
.align 0
|
||||
.syntax unified
|
||||
ret_uidivmod_values:
|
||||
bx lr
|
||||
.type ret_uidivmod_values, %function
|
||||
.size ret_uidivmod_values, .-ret_uidivmod_values
|
||||
@ -0,0 +1,35 @@
|
||||
/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
|
||||
This file is free software; you can redistribute it and/or modify it
|
||||
under the terms of the GNU General Public License as published by the
|
||||
Free Software Foundation; either version 3, or (at your option) any
|
||||
later version.
|
||||
This file is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
Under Section 7 of GPL version 3, you are granted additional
|
||||
permissions described in the GCC Runtime Library Exception, version
|
||||
3.1, as published by the Free Software Foundation.
|
||||
You should have received a copy of the GNU General Public License and
|
||||
a copy of the GCC Runtime Library Exception along with this program;
|
||||
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
|
||||
.section .text.__gnu_thumb1_case_uqi, "ax", %progbits
|
||||
.globl __gnu_thumb1_case_uqi
|
||||
.align 0
|
||||
.thumb_func
|
||||
.syntax unified
|
||||
__gnu_thumb1_case_uqi:
|
||||
push {r1}
|
||||
mov r1, lr
|
||||
lsrs r1, r1, #1
|
||||
lsls r1, r1, #1
|
||||
ldrb r1, [r1, r0]
|
||||
lsls r1, r1, #1
|
||||
add lr, lr, r1
|
||||
pop {r1}
|
||||
bx lr
|
||||
.type __gnu_thumb1_case_uqi, %function
|
||||
.size __gnu_thumb1_case_uqi, .-__gnu_thumb1_case_uqi
|
||||
Loading…
Reference in New Issue
Block a user