Asm scalars

.gitignore

@@ -1,4 +1,3 @@
-/DJDM19
-/DMDM19
-/OCDM19
-/WCDM19
+.vscode
+build_dos
+build_linux

Makefile

@@ -0,0 +1,105 @@
+CC := gcc
+CXX := g++
+DBGFLAGS := -g -DRANGECHECK -fsanitize=address -fsanitize=undefined
+#EXTRAFLAGS = $(DBGFLAGS)
+EXTRAFLAGS = -O2 -fomit-frame-pointer
+CFLAGS := -m32 -Wno-attributes -Wno-unused-result -DAPPVER_EXEDEF=DM19F2 -fno-pic -no-pie $(EXTRAFLAGS)
+COBJFLAGS := $(CFLAGS) -c
+AS := nasm
+
+SRC_DIR := src
+DOS_BUILD_DIR := build_dos
+LINUX_BUILD_DIR := build_linux
+
+define get-objects-from-dir
+$(patsubst $(1)/%.c,$(1)/%.o,$(wildcard $(1)/*.c)) \
+$(patsubst $(1)/%.asm,$(1)/%.o,$(wildcard $(1)/*.asm))
+endef
+
+define src-to-build
+$(patsubst %,$(1)/%,$(2))
+endef
+
+define _depend
+#!/bin/sh
+CC=$1
+DIR=$2
+shift 2
+case "$DIR" in
+"" | ".")
+$CC -MM -MG -c "$@" | sed -e 's@^\(.*\).o:@\\1.d \\1.o:@g'
+;;
+*)
+$CC -MM -MG -c "$@" | sed -e "s@^\(.*\).o:@$DIR\/\\1.d $DIR\/\\1.o:@g"
+;;
+esac
+endef
+export depend = $(value _depend)
+
+# Z_ZONE_OBJ = $(SRC_DIR)/z_zone/z_zone_asan.o
+Z_ZONE_OBJ = $(SRC_DIR)/z_zone/z_zone.o
+
+# Find all .o files
+DOOM_OBJS := $(call get-objects-from-dir,$(SRC_DIR)) $(Z_ZONE_OBJ)
+DOS_OBJS := $(call get-objects-from-dir,$(SRC_DIR)/dos)
+LINUX_OBJS := $(call get-objects-from-dir,$(SRC_DIR)/linux)
+
+ALL_DOS_OBJS := $(call src-to-build, $(DOS_BUILD_DIR), $(DOOM_OBJS) $(DOS_OBJS))
+ALL_LINUX_OBJS := $(call src-to-build, $(LINUX_BUILD_DIR), $(DOOM_OBJS) $(LINUX_OBJS))
+
+.PRECIOUS: $(DOS_BUILD_DIR)/%.d $(LINUX_BUILD_DIR)/%.d %/depend.sh
+
+%/depend.sh: Makefile | %/depend.sh.dir
+	@echo "$$depend" > $@
+	@chmod +x $@
+
+define make-rules
+$(1)/%.d: %.c $(1)/depend.sh | $(1)/%.dir
+	@$(1)/depend.sh $(CC) $$(@D) $(CFLAGS) $$< > $$@
+
+$(1)/%.d: %.asm | $(1)/%.dir
+	@touch $$@
+
+$(1)/%.o: %.c $(1)/%.d
+	@echo "Compiling $$<"
+	@$(CC) $(COBJFLAGS) -o $$@ $$<
+
+$(1)/%.o: %.cpp | $(1)/%.dir
+	@$(CXX) $(COBJFLAGS) -o $$@ $$<
+
+$(1)/%.s: %.c $(1)/%.d
+	@$(CC) $(COBJFLAGS) -S -o $$@ $$<
+
+$(1)/%.o: %.asm $(1)/%.d | $(1)/%.dir
+	@$(AS) $$< $(2) -o $$@
+endef
+
+$(eval $(call make-rules, $(DOS_BUILD_DIR), -f coff))
+$(eval $(call make-rules, $(LINUX_BUILD_DIR), -f elf))
+
+%.dir:
+	@mkdir -p $(dir $@)
+
+# Doom targets
+$(DOS_BUILD_DIR)/doom.exe: $(ALL_DOS_OBJS)
+	$(CXX) -o $@ $^ $(CFLAGS)
+
+$(LINUX_BUILD_DIR)/doom: $(ALL_LINUX_OBJS)
+	$(CXX) -o $@ $^ $(CFLAGS) -lX11
+
+
+.PHONY: debug
+debug: $(TARGET_DEBUG)
+
+.PHONY: clean
+clean:
+	@rm -rf $(DOS_BUILD_DIR)
+	@rm -rf $(LINUX_BUILD_DIR)
+
+# Include dependency files
+# This will include the dependency files generated by the depend.sh script
+# and will ensure that any change to headers will force correct rebuilding.
+# The wildcard function will expand to all .d files in the build directories
+# are present, which prevents make from trying to generate .d files that
+# don't exist.
+-include $(wildcard $(ALL_DOS_OBJS:.o=.d)  $(ALL_LINUX_OBJS:.o=.d))