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169 lines
5.9 KiB
169 lines
5.9 KiB
.PHONY: all clean
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MYDIR := $(dir $(lastword $(MAKEFILE_LIST)))
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ifndef PROJECT_NAME
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$(error PROJECT_NAME is not set to the name of your rom.)
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endif
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ifndef MBC
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$(error MBC is not set. Should be set to the MBC name or value you want. Example "MBC5+RAM+BATTERY")
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endif
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ifndef TARGETS
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$(error TARGETS is not set. Should be a combination of DMG SGB CGB)
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endif
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ifneq ($(filter-out DMG SGB CGB,$(TARGETS)),)
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$(error TARGETS should be a combination of DMG SGB CGB, unknown: $(filter-out DMG SGB CGB,$(TARGETS)))
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endif
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MAPS := $(shell find level/ -type f -name '*.png' -not -name '*_coll.png')
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SRC := $(shell find src/ -type f -name '*.c') $(shell find $(MYDIR)/src/ -type f -name '*.c') $(MAPS:level/%.png=_build/level/%.c)
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ASM := $(shell find src/ -type f -name '*.asm') $(shell find $(MYDIR)/src/ -type f -name '*.asm')
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# Which files do we use from the sdcc libc
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LIBC := _memset.c gbz80/memcpy.s
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LIBC += _divuchar.c _divschar.c _muluchar.c _mulschar.c _modschar.c _moduchar.c
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LIBC += _divuint.c _divsint.c _mulint.c _modsint.c _moduint.c
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# the 32 bit functions use 10% of ROM0, so do not include them
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#LIBC += _divulong.c _divslong.c _mullong.c _modslong.c _modulong.c
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LIBC_PATH := $(subst \,/,$(shell sdcc -mgbz80 --print-search-dirs | grep gbz80 | tail -n 1))/../src
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ifneq (1,$(words [$(LIBC_PATH)]))
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$(error "your environment or sdcc is installed in a path with spaces in it, this is not allowed, as it will break sdcc")
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endif
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Q ?= @
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BUILD := _build
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TOOLS := $(MYDIR)/tools
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OBJS := $(patsubst %, $(BUILD)/%.o, $(ASM) $(SRC)) $(patsubst %, $(BUILD)/libc/%.o, $(LIBC)) $(BUILD)/gsinit.end.o
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CFLAGS := -mgbz80 -Isrc/ -I$(MYDIR)/inc -I$(BUILD)/level
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ASFLAGS := -isrc/ -i$(MYDIR)/inc -i$(BUILD)/assets/ -Wall
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LDFLAGS := --pad 0xFF
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FIXFLAGS := --validate --pad-value 0xFF --title "$(PROJECT_NAME)" --mbc-type "$(MBC)" -l 0x33
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ROM_EXTENSION := gb
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# Replace spaces with underscores in the project name.
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PROJECT_NAME := $(subst $() $(),_,$(PROJECT_NAME))
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ifeq ($(filter CGB,$(TARGETS)),) # Not targeting CGB, so disable CGB features
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CFLAGS += -DCGB=0
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ASFLAGS += -DCGB=0
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LDFLAGS += --dmg
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else
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CFLAGS += -DCGB=1
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ASFLAGS += -DCGB=1
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ifeq ($(filter DMG,$(TARGETS))$(filter SGB,$(TARGETS)),) # Check if not targeting both CGB and DMG
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FIXFLAGS += --color-only
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else
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FIXFLAGS += --color-compatible
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endif
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ROM_EXTENSION := gbc
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endif
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ifeq ($(filter SGB,$(TARGETS)),) # Not targeting SGB, so disable SGB features
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CFLAGS += -DSGB=0
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ASFLAGS += -DSGB=0
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else # Targeting SGB as well
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CFLAGS += -DSGB=1
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ASFLAGS += -DSGB=1
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FIXFLAGS += --sgb-compatible
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endif
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ifneq ($(findstring RAM,$(MBC)),)
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FIXFLAGS += --ram-size 2
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endif
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all: $(PROJECT_NAME).$(ROM_EXTENSION)
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# Rules to make c files
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$(BUILD)/%.c.as: %.c
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@echo Compiling $<
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@mkdir -p $(dir $@)
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$(Q)sdcc $(CFLAGS) -S $< -o $@ -Wp "-MQ $@ -MD $(@:.as=.as.d)"
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-include $(patsubst %.c, $(BUILD)/%.c.as.d, $(SRC))
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$(BUILD)/libc/%.c.as: $(LIBC_PATH)/%.c
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@echo Compiling $<
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@mkdir -p $(dir $@)
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$(Q)sdcc $(CFLAGS) -S $< -o $@
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$(BUILD)/%.c.asm: $(BUILD)/%.c.as $(TOOLS)/asmconvert.py
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$(Q)python3 $(TOOLS)/asmconvert.py $(notdir $<) < $< > $@
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$(BUILD)/%.c.asm.d: $(BUILD)/%.c.asm
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@mkdir -p $(dir $@)
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$(Q)rgbasm $(ASFLAGS) $< -M $@ -MT $(@:.asm.d=.o) -MT $@ -MG
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# rgbds dependency generation is broken, as it stops after the first missing file. so list all incbins always
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$(Q)cat $< | grep -i '^ *INCBIN' | sed -E 's/ *incbin *"([^"]*)"/$(subst /,\/,$(@:.asm.d=.o)): \1/gI' >> $@
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-include $(patsubst %.c, $(BUILD)/%.c.asm.d, $(SRC))
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$(BUILD)/%.c.o: $(BUILD)/%.c.asm $(BUILD)/%.c.asm.d
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@echo "Assembling (c)" $<
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@mkdir -p $(dir $@)
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$(Q)rgbasm $(ASFLAGS) $< -o $@
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# Rules to build libc asm files
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$(BUILD)/libc/%.s.asm: $(LIBC_PATH)/%.s $(TOOLS)/asmconvert.py
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@mkdir -p $(dir $@)
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$(Q)python3 $(TOOLS)/asmconvert.py $(notdir $<) < $< > $@
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$(BUILD)/libc/%.s.o: $(BUILD)/libc/%.s.asm
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@echo Assembling $<
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@mkdir -p $(dir $@)
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$(Q)rgbasm $(ASFLAGS) $< -o $@
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# Rules to build project asm files
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$(BUILD)/%.asm.d: %.asm
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@mkdir -p $(dir $@)
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$(Q)rgbasm $(ASFLAGS) $< -M $@ -MT $(@:.d=.o) -MT $@ -MG
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# rgbds dependency generation is broken, as it stops after the first missing file. so list all incbins always
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$(Q)cat $< | grep -i '^ *INCBIN' | sed -E 's/incbin "([^"]*)"/$(subst /,\/,$(@:.d=.o)): \1/gI' >> $@
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$(BUILD)/%.asm.o: %.asm $(BUILD)/%.asm.d
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@echo Assembling $<
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@mkdir -p $(dir $@)
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$(Q)rgbasm $(ASFLAGS) $< -o $@
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-include $(patsubst %.asm, $(BUILD)/%.asm.d, $(ASM))
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# Rule to build the final rom
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$(PROJECT_NAME).$(ROM_EXTENSION) $(PROJECT_NAME).map $(PROJECT_NAME).sym: $(OBJS)
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@echo Linking $@
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$(Q)rgblink $(LDFLAGS) $^ -o $@ -m $(basename $@).map -n $(basename $@).sym
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$(Q)rgbfix $(FIXFLAGS) $@
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@python3 $(TOOLS)/romspace.py $(basename $@).map
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# Asset related rules
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$(BUILD)/assets/%.2bpp $(BUILD)/assets/%.map: assets/%.png
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@echo Converting $<
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@mkdir -p $(dir $@)
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$(Q)rgbgfx \
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-t "$(BUILD)/$(shell dirname $<)/$(shell basename -s .png $<).map" \
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-o "$(BUILD)/$(shell dirname $<)/$(shell basename -s .png $<).2bpp" \
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-u \
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$<
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$(BUILD)/level/%.h $(BUILD)/level/%.c: level/%.png level/%_coll.png
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@echo Generating level $<
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@mkdir -p $(BUILD)/level
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@cp $< $(BUILD)/level/
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@cp $(shell dirname $<)/$(shell basename -s .png $<)_coll.png $(BUILD)/level/
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@python3 scripts/generate_map.py --compress 1 "$(BUILD)/$<"
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$(BUILD)/assets/%.oam.2bpp: assets/%.oam.png
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@echo Converting $<
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@mkdir -p $(dir $@)
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$(Q)rgbgfx -h $< -o $@
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$(BUILD)/assets/%.1bpp: assets/%.png
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@echo Converting $<
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@mkdir -p $(dir $@)
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$(Q)rgbgfx -d 1 $< -o $@
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# Special hack to place a ret instruction at the end of the GSINIT section.
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# This has to be linked last, as that ensures that this fragment is at the end of the "GSINIT" section.
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$(BUILD)/gsinit.end.o:
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@printf 'SECTION FRAGMENT "GSINIT", ROMX, BANK[1]\n ret' | rgbasm - -o $@
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clean:
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@rm -rf $(BUILD) $(PROJECT_NAME).$(ROM_EXTENSION) $(PROJECT_NAME).map $(PROJECT_NAME).sym
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# Do not remove intermediate files (like assets, c->asm files, etc)
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.SECONDARY:
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