198 lines
7.9 KiB
Makefile
198 lines
7.9 KiB
Makefile
# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
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# See LICENSE.md for license information.
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# SPDX-License-Identifier: MIT
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#
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# Sharp X68000 (elf2x68k / m68k-xelf-gcc) build rules.
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#
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# The port draws planar into the text plane (src/x68000/halPlanar.c), shares
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# the Amiga's 68k planar fills, plots and sprite emitter (src/m68k), plays
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# chip music on the OPM and samples through the ADPCM channel.
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#
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# The toolchain is elf2x68k (BSD-3, gcc 13.4.0 / binutils / newlib), installed
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# by ./install.sh (X68K_ROOT). m68k-xelf-gcc emits ELF; the driver's
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# -Wl,-elf2x68k pass converts it to a Human68k .X.
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#
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# This file holds JoeyLib's library for the X68000 and programRules, the
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# X68000's rules for one program, which make/programs.mk instantiates for
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# every program (a project reaches both through make/project.mk). JoeyLib's
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# own examples and the X68000 gates are at the end.
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PLATFORM := x68000
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include $(dir $(lastword $(MAKEFILE_LIST)))/common.mk
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$(call requireTool,$(X68K_ROOT)/bin/m68k-xelf-gcc,toolchain:x68000)
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X68K_CC := $(X68K_ROOT)/bin/m68k-xelf-gcc
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X68K_AR := $(X68K_ROOT)/bin/m68k-xelf-ar
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# The linker is driven by a wrapper script (m68k-elf/bin/ld.x) that shells out
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# to `m68k-xelf-ld.bfd` by bare name, so the toolchain's own bin/ MUST be on
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# PATH or the link dies with "m68k-xelf-ld.bfd: command not found". Compiling
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# and archiving work fine without it, so this only bites at link time.
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export PATH := $(X68K_ROOT)/bin:$(PATH)
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CFLAGS := $(COMMON_CFLAGS) -m68000 -fomit-frame-pointer \
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-DJOEYLIB_PLATFORM_X68000 \
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-I$(SRC_DIR)/x68000 -I$(SRC_68K) -I$(REPO_DIR)/src/codegen -MMD -MP
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LDFLAGS := -lm
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PORT_C_SRCS := $(wildcard $(SRC_DIR)/x68000/*.c)
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# Raw interrupt shims (timer tick, frame count, SCB raster, SCC receive): each
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# saves every register and returns with RTE, which a C function cannot. And
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# the present's copy (x68kPresent.s).
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PORT_S_SRCS := $(wildcard $(SRC_DIR)/x68000/*.s)
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# Sprite codegen is the shared 68k PLANAR emitter, unchanged. Its
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# AMIGA_PLANE_STRIDE is JL_SURFACE_WIDTH/8 = 40, which is this port's surface
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# stride too -- the display's 128-byte stride never reaches the emitter, which
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# only ever addresses the surface. So sprites COMPILE here rather than
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# interpret; spriteEmitStub.o is gone.
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CODEGEN_DIR := $(REPO_DIR)/src/codegen
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LIB_OBJS := \
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$(patsubst $(SRC_CORE)/%.c,$(BUILD)/obj/core/%.o,$(CORE_C_SRCS)) \
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$(patsubst $(SRC_DIR)/generic/%.c,$(BUILD)/obj/generic/%.o,$(GENERIC_C_SRCS)) \
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$(patsubst $(SRC_DIR)/x68000/%.c,$(BUILD)/obj/port/%.o,$(PORT_C_SRCS)) \
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$(patsubst $(SRC_DIR)/x68000/%.s,$(BUILD)/obj/port/%.o,$(PORT_S_SRCS)) \
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$(BUILD)/obj/68k/planarFill.o \
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$(BUILD)/obj/68k/planarPlot.o \
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$(BUILD)/obj/68k/stageBands.o \
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$(BUILD)/obj/68k/modMix.o \
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$(BUILD)/obj/68k/sfxMix.o \
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$(BUILD)/obj/68k/planarSpriteWalk.o \
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$(BUILD)/obj/68k/spriteEmitPlanar68k.o \
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$(BUILD)/obj/68k/planarSprite.o \
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$(BUILD)/obj/codegen/spriteCompile.o \
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$(BUILD)/obj/codegen/spriteStage.o
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LIB := $(LIBDIR)/libjoey.a
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$(BUILD)/obj/core/%.o: $(SRC_CORE)/%.c
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/generic/%.o: $(SRC_DIR)/generic/%.c
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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# Port-local asm. Same object dir as the port C objects; make picks between the
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# two pattern rules by which prerequisite exists.
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$(BUILD)/obj/port/%.o: $(SRC_DIR)/x68000/%.s
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/68k/%.o: $(SRC_68K)/%.s
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/68k/%.o: $(SRC_68K)/%.c
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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$(BUILD)/obj/codegen/%.o: $(CODEGEN_DIR)/%.c
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -I$(CODEGEN_DIR) -c $< -o $@
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$(BUILD)/obj/port/%.o: $(SRC_DIR)/x68000/%.c
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@mkdir -p $(dir $@)
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$(X68K_CC) $(CFLAGS) -c $< -o $@
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# Archived from scratch, so the members -- and every program's layout --
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# follow LIB_OBJS rather than the order earlier builds added them in.
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$(LIB): $(LIB_OBJS)
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@mkdir -p $(dir $@)
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rm -f $@
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$(X68K_AR) rcs $@ $(LIB_OBJS)
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# Pull in per-object header-dependency files generated by gcc -MMD/-MP, so a
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# header edit rebuilds every object that includes it.
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-include $(LIB_OBJS:.o=.d)
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# ---- programs -----------------------------------------------------------------
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# A program is NAME.X, in bin/ or in its own bin/NAME/ with its DATA beside it
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# (ID_FOLDER: a game's megabyte of data then never rides onto every other
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# program's floppy); joey-run copies the program and its DATA onto a Human68k
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# data floppy.
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PROGRAM_EXT := .X
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PROGRAM_FOLDERS := yes
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# One program, $(1) its id: compiled and linked in one step with the library
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# (the link also leaves NAME.X.elf). gcc's -MMD leaves NAME.d beside it, for
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# header edits.
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define programRules
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$(call programBin,$(1)): $(call programVar,$(1),SRCS) $(LIB)
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@mkdir -p $$(dir $$@)
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$(X68K_CC) $(CFLAGS) $(call programVar,$(1),CFLAGS) $(call programVar,$(1),SRCS) $(LIB) $(LDFLAGS) $(call programVar,$(1),LDFLAGS) -o $$@
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-include $(basename $(call programBin,$(1))).d
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endef
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# ---- JoeyLib's own build: its examples and the X68000 gates ----------------------
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ifndef JOEY_PROJECT
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include $(REPO_DIR)/make/examples.mk
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include $(REPO_DIR)/make/programs.mk
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.DEFAULT_GOAL := all
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.PHONY: all x68000 x68000-lib x68000-examples x68000-verify-audio x68000-verify-serial x68000-verify-mouse x68000-verify-serial-mouse x68000-verify-serial-scb x68000-verify-joy x68000-verify-tilebank x68000-verify-scb x68000-verify-golden clean-x68000 clean
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all x68000: x68000-lib x68000-examples
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x68000-lib: $(LIB)
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x68000-examples: programs
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# Audio gate: AUDIOPRB (AUDIO pressing its own keys, make/examples.mk) under
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# MAME with write taps on the OPM, the PPI and the ADPCM: every noise code in
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# the port's table, the ADPCM fed at 7812 Hz to both speakers (~1 min).
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x68000-verify-audio: $(call programBin,AUDIOPRB)
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$(REPO_DIR)/scripts/verify-x68000-audio.sh $(call programBin,AUDIOPRB)
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# Both-directions RS-232C gate (~1 min).
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x68000-verify-serial: $(call programBin,SERIAL)
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$(REPO_DIR)/scripts/verify-x68000-serial.sh
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# Mouse gate: injected MAME mouse packets through the IOCS ROM into
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# jlMouse* state, read back from KEYS.X's verification scanline.
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x68000-verify-mouse: $(call programBin,KEYS)
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$(REPO_DIR)/scripts/verify-x68000-mouse.sh
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# Serial + mouse together: both share the SCC, so stream both ways on the
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# RS-232C port while the mouse moves, and check neither disturbs the other.
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x68000-verify-serial-mouse: $(call programBin,SERMOUSE)
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$(REPO_DIR)/scripts/verify-x68000-serial-mouse.sh
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# Serial + mouse under per-line palette changes: the serial + mouse gate with
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# examples/sermouse built for a dense SCB at 9600, 19200 and 38400 (~3 min).
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x68000-verify-serial-scb: $(LIB)
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$(REPO_DIR)/scripts/verify-x68000-serial-scb.sh
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# Joystick gate: every direction, both triggers and every release on both
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# ports, held through MAME's pads and read back from JOY.X's display (~10 s).
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x68000-verify-joy: $(call programBin,JOY)
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$(REPO_DIR)/scripts/verify-x68000-joy.sh
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# Tile-bank gate: this port's own .tbk bake loaded both ways must hash like
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# the host gate's, and every other target's bake must be refused (~1 min).
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x68000-verify-tilebank: $(call programBin,TILEBANK) $(TILEBANK_DATA)
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$(REPO_DIR)/scripts/verify-x68000-tilebank.sh
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# SCB gate: every text-palette reload of a 147-change screen, timed on the
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# beam, lands between the last stage pixel of the line above its band and the
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# band's first (~10 s).
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x68000-verify-scb: $(call programBin,SCB)
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$(REPO_DIR)/scripts/verify-x68000-scb.sh
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# Golden-hash gate against the Apple IIgs reference (~1 min: UBER with
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# one-frame windows, which is all the hashes need).
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x68000-verify-golden: $(LIB)
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$(REPO_DIR)/scripts/verify-x68000-golden.sh
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clean-x68000:
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rm -rf $(BUILD)
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# `clean` as an alias for `clean-x68000`. Without it a bare
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# `make -f make/x68000.mk clean` FAILS -- and with stderr discarded that
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# looks like success while leaving stale objects the next build links.
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clean: clean-x68000
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endif
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