#
# Specify target platform (16-bit real-mode DOS), instruction set
# (vanilla 8086), floating point instructions (soft emulation),
# maximum warnings and warnings should be treated as errors.
# Memory model small (near code, near data) as nothing here is
# larger than 64KB.

WCC_COMMON = -bt=dos -0 -wx -we -fpc -ms

WCC_FLAGS = $(WCC_COMMON) -zpw
WCC_FLAGS += -zc -ze -r

# -s    Disable stack checks
# -oh   Enable expensive optimizations
# -ol   Enable loop optimizations
# -os   Optimize for size
# -ot   Optimize for speed (exclusive w/ -os)
WCC_FLAGS += -s -oh -os

# Add DWARF debugging table
#WCC_FLAGS += -d2 -hd

WASM_FLAGS = $(WCC_COMMON) -d1 -dROMDISK_WORKAROUND

#WCC_FLAGS += -DJRIDE_ISA=1

TARGETS = \
	bin/flash.exe \
	bin/rtc.com \
	bin/ide.exe \
	bin/jed2jpf \
	bin/biossum \
	bin/pull.com \
	bin/pimount.com \
	bin/netpid \
	bin/picon.com \
	bin/fwupdate \
	bin/optbios.hex \
	bin/flash.hex \


FIRMWARE_TARGET = rtl/netpi/releases/firmware_ver1_8.jed
#FIRMWARE_TARGET = rtl/netpi/impl/netpi_impl.jed


all: $(TARGETS)


%.hex: %.bin
	@echo " -CONV-   Converting '$<' -> '$@'"
	@objcopy -I binary -O ihex $< $@

# Watcom rules

%.obj %.lst : %.c
	@echo " -WCC-    Compiling '$<'"
	@wcc -q $(WCC_FLAGS) -fo=$@ $<
	@wdis -s=$< -a -e -p -l=$*.lst $@
	@chmod 644 $*.lst

%.obj: %.asm
	@echo " -WASM-   Assembling '$<'"
	@wasm -zq $(WASM_FLAGS) -fo=$@ $<

.PRECIOUS: %.obj %.bin

bin/%.exe: %.obj flash_api.obj
	@echo " -WLINK-  Linking '$@'"
	@WL_TARGET=bin/$* wlink @build/exe.lnk file { $^ }

bin/%.com: %.obj flash_api.obj
	@echo " -WLINK-  Linking '$@'"
	@WL_TARGET=bin/$* wlink @build/com.lnk file { $^ }

bin/pimount.com: redir_io.obj resident.obj pimount.obj flash_api.obj
	@echo " -WLINK-  Linking '$@'"
	@WL_TARGET=bin/pimount wlink @build/com.lnk file { $^ }

BIOS_OBJS = \
	string.obj \
	bios_entry.obj

bin/optbios.bin: $(BIOS_OBJS)
	@echo " -WLINK-  Linking '$@'"
	@WL_TARGET=bin/optbios wlink @build/bios.lnk file { $^ }
	@./bin/biossum $@


# Rasperry PI targets

CC = gcc
OBJCOPY = objcopy

CFLAGS += \
	-pipe \
	-Wall \
	-Wundef \
	-Werror \
	-Wno-trigraphs \
	-Wsign-compare \
	-Wuninitialized

%.o : %.c
	@echo " -HOSTCC- Compiling '$<'"
	@$(CC) -c $(CFLAGS) -o $@ $<

bin/biossum: biossum.o
	@echo " -HOSTLD- Linking '$<'"
	@$(CC) $(CFLAGS) -o $@ $^

bin/jed2jpf: jed2jpf.o
	@echo " -HOSTLD- Linking '$@'"
	@$(CC) $(CFLAGS) -o $@ $^

firmware.c: $(FIRMWARE_TARGET) bin/jed2jpf
	@echo " -JED-    Packing '$<'"
	@./bin/jed2jpf -a -o $@ $<

bin/netpid: netpi.o machxo2_api.o firmware.o server.o config.o spi.o
	@echo " -HOSTLD- Linking '$<'"
	@$(CC) $(CFLAGS) -o $@ $^

bin/mkromdisk: mkromdisk.o
	@echo " -HOSTLD- Linking '$<'"
	@$(CC) $(CFLAGS) -o $@ $^

bin/romdisk.img: bin/mkromdisk mbr.obj romdisk.manifest
	@./bin/mkromdisk -k 496 -p 1536 $@ mbr.obj romdisk.manifest

bin/flash.bin: bin/optbios.bin bin/romdisk.img
	@echo " -CAT-    Concatenating '$@' from '$^'"
	@cat $^ > $@

bin/fwupdate: fwupdate.o spi.o
	@echo " -HOSTLD- Linking '$<'"
	@$(CC) $(CFLAGS) -o $@ $^

clean:
	rm -rf *~ *.o *.obj *.lst *.err bin/* firmware.c $(TARGETS)