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################################################################################
################################################################################
#
##
# Filename:     Makefile
## Filename:    Makefile
#
##
# Project:      Zip CPU -- a small, lightweight, RISC CPU soft core
## Project:     Zip CPU -- a small, lightweight, RISC CPU soft core
#
##
# Purpose:      To direct and simplify the build of a variety of simple assembly
## Purpose:     To direct and simplify the build of a variety of simple assembly
#               language test programs which will use one (or both) of the
##              language test programs which will use one (or both) of the
#       ZipCPU simulators.
##      ZipCPU simulators.
#
##
# Targets include:
## Targets include:
#
##
#       hellosim
##      hellosim
#               Using the SIM instruction, prints Hello World to the screen.
##              Using the SIM instruction, prints Hello World to the screen.
#
##
#       simuart
##      simuart
#               Same as hellosim, but without using the SIM instruction.  This
##              Same as hellosim, but without using the SIM instruction.  This
#               *should* be able to run successfully on a verilated or
##              *should* be able to run successfully on a verilated or
#               synthesized hardware, although I hvae yet to test it there.
##              synthesized hardware, although I hvae yet to test it there.
#
##
#       simtest
##      simtest
#               A set of simple tests designed to demonstrate if the simulator
##              A set of simple tests designed to demonstrate if the simulator
#               works or not.
##              works or not.
#
##
#       clean
##      clean
#               Removes the object file directory and any executables that have
##              Removes the object file directory and any executables that have
#               been created.
##              been created.
#
##
#       None of the files/targets below have any dependencies, or if they did,
##      None of the files/targets below have any dependencies, or if they did,
#       GCC can't determine them, so thus there is no make depends step.
##      GCC can't determine them, so thus there is no make depends step.
#
##
#       To actually run one of these programs, list the program on the command
##      To actually run one of these programs, list the program on the command
#       line with the ZipCPU simulator, zsim.
##      line with the ZipCPU simulator, zsim.
#
##
#
##
#
##
# Creator:      Dan Gisselquist, Ph.D.
## Creator:     Dan Gisselquist, Ph.D.
#               Gisselquist Technology, LLC
##              Gisselquist Technology, LLC
#
##
################################################################################
################################################################################
#
##
# Copyright (C) 2017, Gisselquist Technology, LLC
## Copyright (C) 2017, Gisselquist Technology, LLC
#
##
# This program is free software (firmware): you can redistribute it and/or
## This program is free software (firmware): you can redistribute it and/or
# modify it under the terms of  the GNU General Public License as published
## modify it under the terms of  the GNU General Public License as published
# by the Free Software Foundation, either version 3 of the License, or (at
## by the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
## your option) any later version.
#
##
# This program is distributed in the hope that it will be useful, but WITHOUT
## This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
## for more details.
#
##
# You should have received a copy of the GNU General Public License along
## You should have received a copy of the GNU General Public License along
# with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
## with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
# target there if the PDF file isn't present.)  If not, see
## target there if the PDF file isn't present.)  If not, see
#  for a copy.
##  for a copy.
#
##
# License:      GPL, v3, as defined and found on www.gnu.org,
## License:     GPL, v3, as defined and found on www.gnu.org,
#               http://www.gnu.org/licenses/gpl.html
##              http://www.gnu.org/licenses/gpl.html
#
##
#
##
################################################################################
################################################################################
#
##
 
##
.PHONY: all
.PHONY: all
all: $(OBJDIR)/ hellosim simtest simuart cmptest
all:
 
PROGRAMS := hellosim simuart simtest cmptest
 
all: $(PROGRAMS)
 
 
CC      := zip-gcc
CC      := zip-gcc
CPP     := zip-cpp
CPP     := zip-cpp
AS      := zip-as
AS      := zip-as
LD      := zip-ld
LD      := zip-ld
OBJDUMP := zip-objdump
OBJDUMP := zip-objdump
OBJDIR := obj-zip
OBJDIR := obj-zip
CFLAGS := -O3
CFLAGS := -O3
LIBD   := ../../sw/install/cross-tools/zip/lib
LIBD   := ../../sw/install/cross-tools/zip/lib
LIBS   := -L$(LIBD) -lzipbasic
LIBS   := -L$(LIBD) -lzipbasic
LDSCRIPT:= ../zipsim.ld
LDSCRIPT:= ./simscript.ld
 
 
$(OBJDIR)/%.o: %.c $(OBJDIR)/
$(OBJDIR)/%.o: %.c
 
        $(mk-objdir)
        $(CC) $(CFLAGS) -c $< -o $@
        $(CC) $(CFLAGS) -c $< -o $@
 
 
$(OBJDIR)/%.o: %.s $(OBJDIR)/
$(OBJDIR)/%.o: %.s
 
        $(mk-objdir)
        $(AS) $< -o $@
        $(AS) $< -o $@
 
 
%.txt: %
%.txt: %
        $(OBJDUMP) -dr $< > $@
        $(OBJDUMP) -dr $< > $@
 
 
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# used to determine whether the simulator has a basic amount of functionality.
# used to determine whether the simulator has a basic amount of functionality.
# Because the test includes #define, #ifdef, and #endif statements, though, it
# Because the test includes #define, #ifdef, and #endif statements, though, it
# needs to be run through the C pre-processor before it can go through the
# needs to be run through the C pre-processor before it can go through the
# assembler.  Hence the build is a tocuh trickier, but still simple enough.
# assembler.  Hence the build is a tocuh trickier, but still simple enough.
#
#
$(OBJDIR)/simtest.o: simtest.s $(OBJDIR)/
$(OBJDIR)/simtest.o: simtest.s
 
        $(mk-objdir)
        $(CPP) $< > $(OBJDIR)/simtest.s
        $(CPP) $< > $(OBJDIR)/simtest.s
        $(AS) $(OBJDIR)/simtest.s -o $@
        $(AS) $(OBJDIR)/simtest.s -o $@
 
 
simtest: $(OBJDIR)/simtest.o
simtest: $(OBJDIR)/simtest.o
        $(LD) -T $(LDSCRIPT) $< -o $@
        $(LD) -T $(LDSCRIPT) $< -o $@
 
 
cmptest: $(OBJDIR)/cmptest.o
cmptest: $(OBJDIR)/cmptest.o
        $(LD) -T $(LDSCRIPT) -Map=map.txt $< -o $@
        $(LD) -T $(LDSCRIPT) -Map=map.txt $< -o $@
 
 
 
 
$(OBJDIR)/:
define  mk-objdir
        @bash -c "if [[ ! -e $(OBJDIR) ]]; then mkdir -p $(OBJDIR)/; fi"
        @bash -c "if [[ ! -e $(OBJDIR) ]]; then mkdir -p $(OBJDIR)/; fi"
 
endef
 
 
 
tags: $(wildcard *.c) $(wildcard *.h) $(wildcard *.cpp)
 
        @echo "Generating tags"
 
        @ctags $(wildcard *.c) $(wildcard *.h)
 
 
.PHONY: clean
.PHONY: clean
clean:
clean:
        rm -rf $(OBJDIR)/
        rm -rf $(OBJDIR)/
        rm -rf hellosim simuart simtest
        rm -rf $(PROGRAMS)
        rm -rf $(PROGRAMS)
        rm -rf $(PROGRAMS)

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