Subversion Repositories zipcpu

################################################################################
#
# Filename:     Makefile
#
# Project:      Zip CPU -- a small, lightweight, RISC CPU soft core
#
# Purpose:      To direct and simplify the build of a variety of simple assembly
#               language test programs which will use one (or both) of the
#       ZipCPU simulators.
#
# Targets include:
#
#       hellosim
#               Using the SIM instruction, prints Hello World to the screen.
#
#       simuart
#               Same as hellosim, but without using the SIM instruction.  This
#               *should* be able to run successfully on a verilated or
#               synthesized hardware, although I hvae yet to test it there.
#
#       simtest
#               A set of simple tests designed to demonstrate if the simulator
#               works or not.
#
#       clean
#               Removes the object file directory and any executables that have
#               been created.
#
#       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.
#
#       To actually run one of these programs, list the program on the command
#       line with the ZipCPU simulator, zsim.
#
#
#
# Creator:      Dan Gisselquist, Ph.D.
#               Gisselquist Technology, LLC
#
################################################################################
#
# Copyright (C) 2017, Gisselquist Technology, LLC
#
# 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
# by the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY 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.  (It's in the $(ROOT)/doc directory.  Run make with no
# target there if the PDF file isn't present.)  If not, see
# <http://www.gnu.org/licenses/> for a copy.
#
# License:      GPL, v3, as defined and found on www.gnu.org,
#               http://www.gnu.org/licenses/gpl.html
#
#
################################################################################
#
.PHONY: all
all: $(OBJDIR)/ hellosim simtest simuart cmptest

CC      := zip-gcc
CPP     := zip-cpp
AS      := zip-as
LD      := zip-ld
OBJDUMP := zip-objdump
OBJDIR := obj-zip
CFLAGS := -O3
LIBD   := ../../sw/install/cross-tools/zip/lib
LIBS   := -L$(LIBD) -lzipbasic
LDSCRIPT:= ../zipsim.ld

$(OBJDIR)/%.o: %.c $(OBJDIR)/
        $(CC) $(CFLAGS) -c $< -o $@

$(OBJDIR)/%.o: %.s $(OBJDIR)/
        $(AS) $< -o $@

%.txt: %
        $(OBJDUMP) -dr $< > $@

#
# hellosim
#
# This is an assembly version of Hello World that uses the new SIM instructions.
# It should fail with an illegal instruction error if it is ever tried on an
# RTL-synthesized implementation
#
hellosim: $(OBJDIR)/hellosim.o
        $(LD) -T $(LDSCRIPT) $< -o $@

#
# simuart
#
# This is an assembly version of Hello World that uses the UART in the 
# process.  It doesn't use newlib or any other support tools, just binutils.
#
simuart: $(OBJDIR)/simuart.o
        $(LD) -T $(LDSCRIPT) $< -o $@

#
# simtest
#
# This is just a simple series of instruction tests that should be able to be
# used to determine whether the simulator has a basic amount of functionality.
# 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
# assembler.  Hence the build is a tocuh trickier, but still simple enough.
#
$(OBJDIR)/simtest.o: simtest.s $(OBJDIR)/
        $(CPP) $< > $(OBJDIR)/simtest.s
        $(AS) $(OBJDIR)/simtest.s -o $@

simtest: $(OBJDIR)/simtest.o
        $(LD) -T $(LDSCRIPT) $< -o $@

cmptest: $(OBJDIR)/cmptest.o
        $(LD) -T $(LDSCRIPT) -Map=map.txt $< -o $@


$(OBJDIR)/:
        @bash -c "if [[ ! -e $(OBJDIR) ]]; then mkdir -p $(OBJDIR)/; fi"

.PHONY: clean
clean:
        rm -rf $(OBJDIR)/
        rm -rf hellosim simuart simtest