X-Git-Url: http://git.subgeniuskitty.com/screensavers/.git/blobdiff_plain/f1dc1972e6e3237ecb7bcacdb3466cf1e5f596ff..b73247cfaa571f5f162eca6e55ee7ea803d31dd7:/hacks/NEDsim/ned_programs/Makefile

diff --git a/hacks/NEDsim/ned_programs/Makefile b/hacks/NEDsim/ned_programs/Makefile
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+++ b/hacks/NEDsim/ned_programs/Makefile
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+#############################################################
+# (c) 2021 Aaron Taylor <ataylor at subgeniuskitty dot com> #
+# See LICENSE.txt file for copyright and license details.   #
+#############################################################
+
+################################################################################
+# Configuration
+################################################################################
+
+# To keep the rules simple, since we are dealing with six different file
+# extensions, NED_EMBED is defined with no suffix, leaving the suffix to be
+# hardcoded in each step as appropriate and simplying the make target list.
+.SUFFIXES: .ned_asm
+NED_SRC != ls *.ned_asm
+NED_EMBED := $(NED_SRC:.ned_asm=)
+
+# This header file will contain C declarations for the binary blobs and a
+# variable which tracks their size. It should be included in any C source code
+# that will link against the object files containing the binary blobs.
+DECLARATION_HEADER_FILE = embedded_ned_program_declarations.h
+
+# Misc program names/paths.
+GNU_ASM     = as
+NED_ASM     = ned1asm
+NED_OBJDUMP = ned1objdump
+
+################################################################################
+# Targets
+################################################################################
+
+# Since nedasm and nedobjcopy do not overwrite existing files, include target
+# `clean` as a preq.
+all: clean $(NED_EMBED)
+    # Build an #include guard around the C declarations of the binary blobs.
+	@mv $(DECLARATION_HEADER_FILE) $(DECLARATION_HEADER_FILE).tempfile
+	@echo "/* Autogenerated code. Do not edit. */" >> $(DECLARATION_HEADER_FILE)
+	@echo "#ifndef NEDSIM_AUTOGEN_BLOB_DECLARATIONS" >> $(DECLARATION_HEADER_FILE)
+	@echo "#define NEDSIM_AUTOGEN_BLOB_DECLARATIONS" >> $(DECLARATION_HEADER_FILE)
+	@cat $(DECLARATION_HEADER_FILE).tempfile >> $(DECLARATION_HEADER_FILE)
+	@rm $(DECLARATION_HEADER_FILE).tempfile
+	@echo "#endif" >> $(DECLARATION_HEADER_FILE)
+
+.ned_asm:
+	# We assemble the NED source and then dump the executable code section of
+	# the resulting a.out file as a binary blob.
+	@$(NED_ASM) -i $*.ned_asm -o $*.out
+	@$(NED_OBJDUMP) -i $*.out -o $*.bin
+	# Using `sed`, prepare an x86 assembly file as a container for each NED
+	# binary blob. This includes building a C header file with relevant
+	# declarations for each binary blob.
+	@sed 's/INSERTNAME/$*/g' container.x86_asm_template > $*.x86_asm
+	@echo "extern const uint8_t $*[];" >> $(DECLARATION_HEADER_FILE)
+	@echo "extern const size_t $*_size;" >> $(DECLARATION_HEADER_FILE)
+	# Assemble the container, creating a linkable object file containing the
+	# NED binary blob.
+	@$(GNU_ASM) -o $*.o $*.x86_asm
+	@rm -f $*.bin $*.x86_asm $*.out
+
+clean:
+	@rm -f *.bin *.x86_asm *.out *.o $(DECLARATION_HEADER_FILE)*
+