From f122fa70e30a7d7744b38fa22bd1d5aa949e8277 Mon Sep 17 00:00:00 2001
From: Wojciech Kosior <kwojtus@protonmail.com>
Date: Thu, 24 Dec 2020 09:22:34 +0100
Subject: prepare makefile infrastructure for writing examples

---
 Makefile | 64 +++++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 33 insertions(+), 31 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 39f1f1b..cad5c5f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,40 +1,34 @@
-PROJ_DIR := .
+PROJ_DIR := ./
+
+def : design.bin
 
-include Makefile.config
 include Makefile.util
-include tools/Makefile.tools
 
-TEST_TARGETS := $(addprefix test_,$(shell ls tests))
+IVFLAGS += -Iinclude/
 
-TOOLS_TARGETS := $(addprefix tools/,$(TOOLS))
+TESTS := $(notdir \
+	$(shell find $(PROJ_DIR)/tests -maxdepth 1 -mindepth 1 -type d))
 
-GENERATED_MEM_FILES := $(shell find design/ -name "*.s.tcl")
-GENERATED_MEM_FILES := $(basename $(basename $(GENERATED_MEM_FILES)))
-GENERATED_MEM_FILES := $(addsuffix .mem,$(GENERATED_MEM_FILES))
+TEST_TARGETS := $(addprefix test_,$(TESTS))
 
-all : design.bin
+EXAMPLES := $(notdir \
+	$(shell find $(PROJ_DIR)/examples -maxdepth 1 -mindepth 1 -type d))
 
+EXAMPLE_SIM_TARGETS := $(addprefix simulate_,$(EXAMPLES))
+EXAMPLE_BUILD_TARGETS := $(addprefix build_,$(EXAMPLES))
+EXAMPLE_PROG_TARGETS := $(addprefix prog_,$(EXAMPLES))
 
-design.v : design/rom.mem design/*.v
-	$(IV) -Iinclude/ -E $(filter %.v,$^) \
+design.v : design/rom.mem design/*.v design/font.mem
+	$(IV) $(IVFLAGS) -E $(filter %.v,$^) \
 		-DROM_WORDS_COUNT=$(call FILE_LINES,$<) -o $@
 
-design.json : design.v design/rom.mem design/font.mem
-	$(YOSYS) -p 'read_verilog -defer $<' \
-	         -p 'synth_ice40 -top $(TOPMODULE) -json $@'
-
-design.asc : design.json $(PCF)
-	$(PNR) --hx8k --asc $@ --pcf $(PCF) --json $< --package ct256
-
-design.bin : design.asc
-	$(ICEPACK) $< $@
+# Yosys synthesis (generates design.json), NextPNR routing (generates
+# design.asc), bitstream generation (generates design.bin) and programming
+# were moved to Makefile.util, so that they can be reused in examples.
 
 timing.rpt : design.asc
 	$(ICETIME) -d hx8k -mtr $@ $<
 
-prog : design.bin
-	sudo iceprogduino $<
-
 
 CALL_TESTS = \
 	cd tests/; \
@@ -65,18 +59,26 @@ wasm_compile_test :
 $(TEST_TARGETS) : test_% :
 	$(MAKE) -C tests/$*
 
+$(EXAMPLE_SIM_TARGETS) : simulate_% :
+	$(MAKE) -C examples/$*
 
-tools : $(TOOLS_TARGETS)
+$(EXAMPLE_BUILD_TARGETS) : build_% :
+	$(MAKE) -C examples/$* design.bin
+
+$(EXAMPLE_PROG_TARGETS) : prog_% :
+	$(MAKE) -C examples/$* prog
 
-$(TOOLS_TARGETS) : tools/% :
-	$(MAKE) -C tools/ $*
 
+tools : $(TOOLS_TARGETS)
 
 clean :
-	for TEST in tests/*; do $(MAKE) -C $$TEST clean >/dev/null; done
-	rm $(GENERATED_MEM_FILES) 2>/dev/null || true
+	for TEST in tests/*/; do $(MAKE) -C $$TEST clean >/dev/null; done
+	for EXAMP in examples/*/; do $(MAKE) -C $$EXAMP clean > /dev/null; done
+	rm $(call FIND_GENERATED_FILES,design/) 2>/dev/null || true
 	$(MAKE) -C tools/ clean >/dev/null
-	rm $(addprefix design.,v json asc bin) timing.rpt 2>/dev/null || true
+	rm $(addprefix design.,v json asc bin) timing.rpt \
+		$(addsuffix .log,yosys pnr) 2>/dev/null || true
 
-.PHONY : all tools test quicktest stack_machine_test stack_machine_quicktest \
-	wasm_compile_test $(TEST_TARGETS) $(TOOLS_TARGETS) tools
+.PHONY : def tools test quicktest stack_machine_test stack_machine_quicktest \
+	wasm_compile_test $(TEST_TARGETS) $(TOOLS_TARGETS) tools \
+	$(EXAMPLE_SIM_TARGETS) $(EXAMPLE_BUILD_TARGETS) $(EXAMPLE_PROG_TARGETS)
-- 
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