mirror of
https://codeberg.org/virtualxt/virtualxt.git
synced 2026-10-19 14:04:45 +00:00
Andreas T Jonsson
4d5413503b
Bug fixes: - pic: honor auto-EOI mode (ICW4 bit 1); ISR bit now only set when auto-EOI is disabled (previously set unconditionally) - spec: correct port 0xB0-in polarity (0x00 = hard disk, 0xFF = floppy) to match both the Odin and C implementations - debug: gate cga_regs/cga_vram handlers on the video adapter actually being CGA (returned garbage when EGA/HGC was active) Dead code removal: - unused public APIs: vxt_cpu_flush_prefetch, vxt_bus_set_pic, vxt_uart_registers, vxt_uart_set_error, vxt_disk_bootstrap - write-only CPU instruction-stream fields + MAX_INSTRUCTION_SIZE - unused macros VXT_CPU_USE_PREFETCH, MBOX_TOTAL_SIZE - debug server: g_active_server, single_step, last_segments, SEG_TAG_* - UART iir field, always-false ega_config stub, empty destroy stubs (joystick, UART, mouse), exec_wait/exec_esc folded into exec_nop - frontend: BIOS_ROM_BASE/VXTX_ROM_BASE, mixer HOSTFS_DURATION/ HOSTFS_VOLUME/seek_volume, unreachable clamps, ini_parse return value - misc dead stores/clamps (hostfs, hgc), dangling comment (cpu.c) Makefile: drop 12 redundant pattern rules, replace dead check-circle test with a real compiler check, drop duplicated distclean line, complete .PHONY, collapse flag lists, develop honors LIBRETRO_OUT. STATUS.md: correct stale module test counts (110 -> 119).
303 lines
12 KiB
Makefile
303 lines
12 KiB
Makefile
# VirtualXT -- Makefile
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#
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# Core library, utils, modules, and frontend compile freestanding (no libc).
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# The frontend depends only on libretro function pointers.
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# Tests are hosted (use libc for stdio, malloc, etc.).
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#
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# Targets:
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# develop (default) -- libretro core with debug server + test runners
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# release -- libretro core without debug server
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# object -- release-mode libretro object for packaging/web
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# rpi -- cross-compile baremetal Raspberry Pi kernel
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# web -- standalone Emscripten web frontend
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# test -- run all tests (test-modules + test-cpu)
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# testdata -- download 8088/V20 MOO CPU test data
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# bios-data -- regenerate C headers from BIOS ROMs and disk image
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# samples -- regenerate audio sample header
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# vxtbios/vxtx/egabios-- assemble BIOS ROMs (requires nasm)
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# run -- launch develop core in RetroArch
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# clean/distclean -- remove build artifacts (+ test data)
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CC ?= gcc
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AR ?= ar
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NASM ?= nasm
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PYTHON ?= python3
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BUILD_DATE := $(shell date +%m/%d/%Y)
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VXT_VERSION := $(shell . tools/getversion/export.sh)
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CFLAGS := -std=c11 -Wall -Wextra -Wpedantic -Isrc
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LDFLAGS ?=
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LIBRETRO_OUT ?= virtualxt_libretro.so
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LIBRETRO_LINK_MODE ?= -shared
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LIBRETRO_OBJECT_OUT ?= virtualxt_libretro.o
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CIRCLEHOME ?= ../circle
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# Cross-compiler prefix for Raspberry Pi.
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# Read the toolchain prefix from Circle's Config.mk (set by ./configure).
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# Falls back to the standard baremetal prefix if Circle is not yet configured.
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CROSS_PREFIX ?= $(shell \
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if [ -f "$(CIRCLEHOME)/Config.mk" ]; then \
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grep '^PREFIX64' "$(CIRCLEHOME)/Config.mk" 2>/dev/null | sed 's/^PREFIX64[[:space:]]*=[[:space:]]*//' | sed 's/[[:space:]]*$$//'; \
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fi)
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ifeq ($(CROSS_PREFIX),)
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CROSS_PREFIX := aarch64-none-elf-
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endif
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ifdef NO_RTC
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CFLAGS += -DNO_RTC
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endif
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ifdef NO_DEFAULT_DISK
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CFLAGS += -DNO_DEFAULT_DISK
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endif
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ifdef NO_SAMPLES
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CFLAGS += -DNO_SAMPLES
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endif
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ifdef CRT_FILTER_EXTERNAL
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CFLAGS += -DCRT_FILTER_EXTERNAL
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endif
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CORE_CFLAGS := $(CFLAGS) -ffreestanding -fPIC -O2
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TEST_CFLAGS := $(CFLAGS) -O2 -DDEBUG_SERVER
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FRONT_CFLAGS := $(CORE_CFLAGS) -Itools/libretro -DVXT_VERSION='"$(VXT_VERSION)"'
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DEBUG_CFLAGS := $(TEST_CFLAGS) -fPIC
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# ── Source lists ─────────────────────────────────────────────────────────
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CORE_SRCS := src/utils/utils.c \
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src/vxt/peripheral.c src/vxt/cpu.c src/vxt/alu.c \
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src/vxt/div.c src/vxt/cpu_remap.c src/vxt/cpu_v20.c \
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src/vxt/cpu_cycles.c src/vxt/machine.c \
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src/modules/module_table.c \
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src/modules/rom/rom.c \
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src/modules/disk/disk.c \
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src/modules/chipset/chipset.c src/modules/chipset/pic.c \
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src/modules/chipset/pit.c src/modules/chipset/dma.c \
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src/modules/chipset/ppi.c \
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src/modules/cga/cga.c \
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src/modules/ega/ega.c \
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src/modules/hgc/hgc.c \
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src/modules/uart/uart.c \
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src/modules/mouse/mouse.c \
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src/modules/joystick/joystick.c \
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src/modules/hostfs/hostfs.c \
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src/modules/ems/ems.c \
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$(if $(NO_RTC),,src/modules/rtc/rtc.c)
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TEST_SRCS := src/tests/moo.c src/tests/cpu_main.c
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MODULE_SRCS := src/tests/module_main.c \
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src/tests/test_bus.c src/tests/test_pic.c \
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src/tests/test_pit.c src/tests/test_dma.c \
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src/tests/test_rom.c src/tests/test_ppi.c \
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src/tests/test_ems.c src/tests/test_rtc.c
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# ── Object lists ─────────────────────────────────────────────────────────
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CORE_OBJS := $(CORE_SRCS:.c=.o)
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TEST_OBJS := $(TEST_SRCS:.c=.o)
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MODULE_OBJS := $(MODULE_SRCS:.c=.o)
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DEBUG_TEST_OBJS := src/tests/test_debug.o
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DEBUG_SERVER_OBJS := src/modules/debug/debug_server.o
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DEVELOP_FRONT_OBJS := src/frontend/core.develop.o src/frontend/ini.develop.o src/frontend/crt.develop.o src/frontend/audio_mixer.develop.o
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RELEASE_FRONT_OBJS := src/frontend/core.release.o src/frontend/ini.release.o src/frontend/crt.release.o src/frontend/audio_mixer.release.o
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# When NO_RTC=1, rtc.o is excluded from libvxt.a but test_rtc.c still needs it.
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# Compile rtc.o separately for the module-runner link.
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ifdef NO_RTC
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MODULE_EXTRA_OBJS := src/modules/rtc/rtc.o
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else
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MODULE_EXTRA_OBJS :=
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endif
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# ── BIOS data generation ────────────────────────────────────────────────
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BIOS_DATA := src/frontend/generated/vxtbios_bin.h \
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src/frontend/generated/vxtx_bin.h \
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src/frontend/generated/egabios_rom.h \
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src/frontend/generated/freedos_hd_img.h
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$(BIOS_DATA): bios/vxtbios.bin bios/vxtx.bin bios/egabios.bin boot/freedos_hd.img
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$(PYTHON) tools/bios/gen_bios_data.py
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# ── Sample data generation ──────────────────────────────────────────────
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SAMPLES_DATA := src/frontend/generated/audio_samples.h
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$(SAMPLES_DATA): samples/servo_seeks_eq.wav tools/samples/gen_samples.py
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$(PYTHON) tools/samples/gen_samples.py
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# ── Top-level targets ───────────────────────────────────────────────────
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.PHONY: all develop release object web rpi check-circle clean distclean testdata test test-cpu test-cpu-8088 test-cpu-v20 test-modules run bios-data samples vxtbios vxtx egabios
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.DEFAULT_GOAL := develop
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all: develop
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develop: libvxt.a test-runner module-runner $(DEVELOP_FRONT_OBJS) $(DEBUG_SERVER_OBJS)
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mkdir -p $(dir $(LIBRETRO_OUT))
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$(CC) $(LIBRETRO_LINK_MODE) -o $(LIBRETRO_OUT) $(LDFLAGS) $(DEVELOP_FRONT_OBJS) $(DEBUG_SERVER_OBJS) ./libvxt.a -lpthread
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release: libvxt.a $(RELEASE_FRONT_OBJS)
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mkdir -p $(dir $(LIBRETRO_OUT))
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$(CC) $(LIBRETRO_LINK_MODE) -o $(LIBRETRO_OUT) $(RELEASE_FRONT_OBJS) ./libvxt.a
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object: libvxt.a $(RELEASE_FRONT_OBJS)
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mkdir -p $(dir $(LIBRETRO_OBJECT_OUT))
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$(CC) -r $(LDFLAGS) -o $(LIBRETRO_OBJECT_OUT) $(RELEASE_FRONT_OBJS) ./libvxt.a
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# Cross-compile the libretro core object for Raspberry Pi (AArch64 baremetal),
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# then build the Circle kernel image that wraps it.
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# The baremetal target excludes the default disk image and audio samples to
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# reduce binary size; the user is expected to provide a custom machine setup.
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rpi: check-circle
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rm -f $(CORE_OBJS) $(RELEASE_FRONT_OBJS) libvxt.a $(LIBRETRO_OBJECT_OUT)
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$(MAKE) CC=$(CROSS_PREFIX)gcc AR=$(CROSS_PREFIX)ar object NO_DEFAULT_DISK=1 NO_SAMPLES=1 CRT_FILTER_EXTERNAL=1
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$(MAKE) -C tools/circle/kernel PREFIX64=$(CROSS_PREFIX)
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# Build standalone web frontend with Emscripten.
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web:
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$(MAKE) -C tools/web
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check-circle:
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@command -v $(CROSS_PREFIX)gcc >/dev/null 2>&1 || { \
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echo "Error: No AArch64 cross-compiler found ($(CROSS_PREFIX)gcc)."; \
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echo "Please install aarch64-none-elf-gcc or aarch64-linux-gnu-gcc."; \
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exit 1; \
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}
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@if [ ! -f "$(CIRCLEHOME)/lib/libcircle.a" ]; then \
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echo "Error: Circle library not found at $(CIRCLEHOME)/lib/libcircle.a"; \
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echo "Please build Circle first:"; \
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echo " cd $(CIRCLEHOME) && ./configure -r 4 --multicore && makeall"; \
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exit 1; \
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fi
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bios-data: $(BIOS_DATA)
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samples: $(SAMPLES_DATA)
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# ── BIOS assembly (manual, requires nasm) ───────────────────────────────
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vxtbios: bios/vxtbios.bin
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bios/vxtbios.bin: bios/vxtbios.asm
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$(NASM) -f bin -o $@ -l bios/vxtbios.lst -dBUILD_DATE="'$(BUILD_DATE)'" $<
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$(PYTHON) tools/checksum/update_bios_checksum.py $@
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vxtx: bios/vxtx.bin
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bios/vxtx.bin: bios/vxtx.asm
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$(NASM) -f bin -o $@ -l bios/vxtx.lst $<
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$(PYTHON) tools/checksum/update_bios_checksum.py $@
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egabios: bios/egabios.bin
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bios/egabios.bin: bios/egabios.asm
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$(NASM) -f bin -o $@ -l bios/egabios.lst $<
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$(PYTHON) tools/checksum/update_bios_checksum.py $@
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# ── Libraries and binaries ──────────────────────────────────────────────
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libvxt.a: $(CORE_OBJS)
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$(AR) rcs $@ $^
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test-runner: $(TEST_OBJS) libvxt.a
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$(CC) $(TEST_CFLAGS) -o $@ $(TEST_OBJS) ./libvxt.a
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module-runner: $(MODULE_OBJS) $(MODULE_EXTRA_OBJS) $(DEBUG_TEST_OBJS) $(DEBUG_SERVER_OBJS) libvxt.a
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$(CC) $(TEST_CFLAGS) -o $@ $(MODULE_OBJS) $(MODULE_EXTRA_OBJS) $(DEBUG_TEST_OBJS) $(DEBUG_SERVER_OBJS) ./libvxt.a -lpthread
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# ── Compilation rules ───────────────────────────────────────────────────
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# Core: freestanding.
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src/utils/%.o: src/utils/%.c; $(CC) $(CORE_CFLAGS) -c -o $@ $<
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src/vxt/%.o: src/vxt/%.c; $(CC) $(CORE_CFLAGS) -c -o $@ $<
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src/modules/%.o: src/modules/%.c; $(CC) $(CORE_CFLAGS) -c -o $@ $<
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src/modules/debug/%.o: src/modules/debug/%.c; $(CC) $(DEBUG_CFLAGS) -c -o $@ $<
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# Tests: hosted.
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src/tests/%.o: src/tests/%.c
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$(CC) $(TEST_CFLAGS) -c -o $@ $<
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# Frontend: develop (with debug server) and release (without).
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src/frontend/%.develop.o: src/frontend/%.c
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$(CC) $(FRONT_CFLAGS) -DDEBUG_SERVER -c -o $@ $<
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src/frontend/%.release.o: src/frontend/%.c
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$(CC) $(FRONT_CFLAGS) -c -o $@ $<
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# ── Test targets ────────────────────────────────────────────────────────
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test: test-modules test-cpu
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test-modules: module-runner
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@./module-runner
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test-cpu: test-cpu-8088 test-cpu-v20
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test-cpu-8088: test-runner
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@if [ ! -d src/tests/testdata ] || [ -z "$$(ls src/tests/testdata/*.MOO 2>/dev/null)" ]; then \
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echo "No 8088 test data found. Run 'make testdata' first."; exit 1; \
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fi; \
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failed=0; passed=0; total=0; \
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for f in src/tests/testdata/*.MOO; do \
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[ -f "$$f" ] || continue; \
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mask=213; \
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if [ -f src/tests/testdata/masks.txt ]; then \
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m=$$(grep "^$$(basename $$f) " src/tests/testdata/masks.txt | awk '{print $$2}'); \
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[ -n "$$m" ] && mask=$$m; \
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fi; \
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total=$$((total + 1)); \
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if ./test-runner "$$f" "$$mask"; then \
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passed=$$((passed + 1)); \
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else \
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failed=$$((failed + 1)); \
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fi; \
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done; \
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echo ""; \
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echo "=== 8088 Results: $$passed passed, $$failed failed ($$total files) ==="; \
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[ $$failed -eq 0 ]
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test-cpu-v20: test-runner
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@if [ ! -d src/tests/testdata/v20 ] || [ -z "$$(ls src/tests/testdata/v20/*.MOO 2>/dev/null)" ]; then \
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echo "No V20 test data found. Run 'make testdata' first."; exit 1; \
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fi; \
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failed=0; passed=0; total=0; \
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for f in src/tests/testdata/v20/*.MOO; do \
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[ -f "$$f" ] || continue; \
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mask=213; \
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if [ -f src/tests/testdata/v20/masks.txt ]; then \
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m=$$(grep "^$$(basename $$f) " src/tests/testdata/v20/masks.txt | awk '{print $$2}'); \
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[ -n "$$m" ] && mask=$$m; \
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fi; \
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total=$$((total + 1)); \
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if ./test-runner --v20 "$$f" "$$mask"; then \
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passed=$$((passed + 1)); \
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else \
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failed=$$((failed + 1)); \
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fi; \
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done; \
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echo ""; \
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echo "=== V20 Results: $$passed passed, $$failed failed ($$total files) ==="; \
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[ $$failed -eq 0 ]
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testdata:
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$(PYTHON) tools/testdata/fetch.py
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# ── Run ─────────────────────────────────────────────────────────────────
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run: develop
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retroarch -v -L virtualxt_libretro.so
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# ── Clean ───────────────────────────────────────────────────────────────
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clean:
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rm -f $(CORE_OBJS) $(TEST_OBJS) $(MODULE_OBJS) $(MODULE_EXTRA_OBJS) \
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$(DEBUG_TEST_OBJS) $(DEBUG_SERVER_OBJS) \
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$(DEVELOP_FRONT_OBJS) $(RELEASE_FRONT_OBJS) \
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libvxt.a test-runner module-runner $(LIBRETRO_OUT) \
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$(LIBRETRO_OBJECT_OUT)
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-$(MAKE) -C tools/circle/kernel clean
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-$(MAKE) -C tools/web clean
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distclean: clean
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rm -rf src/tests/testdata
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