a9be35c7b3
This change adds a boatload of ROM patches to alter screen base, resolution, words-per-line, and related variables so that MacOS will function correctly with a framebuffer other than 512x342 (which remains the default). The majority of the patches are actually to make ROM-drawn low-level things (such as disc icons, happy/sad Mac icons/crash hexadecimal info) render right and be positioned correctly. This works up to about 800x600; the limiting factor is patching int16 immediates for certain instructions, meaning a ~64KB framebuffer size is the current limit without more work. The Makefile can now take DISP_WIDTH/DISP_HEIGHT parameters to configure a build. There is no support for dynamic switching, or runtime-selected switching.
96 lines
3 KiB
Makefile
96 lines
3 KiB
Makefile
# Makefile for umac
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#
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# Builds Musashi as submodule, unix_main as SDL2 test application.
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#
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# Copyright 2024 Matt Evans
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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DEBUG ?= 0
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MEMSIZE ?= 128
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SOURCES = $(wildcard src/*.c)
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MUSASHI = external/Musashi/
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MUSASHI_SRC = $(MUSASHI)/m68kcpu.c $(MUSASHI)/m68kdasm.c $(MUSASHI)/m68kops.c $(MUSASHI)/softfloat/softfloat.c
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MY_OBJS = $(patsubst %.c, %.o, $(SOURCES))
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MUSASHI_OBJS = $(patsubst %.c, %.o, $(MUSASHI_SRC))
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OBJS = $(MY_OBJS) $(MUSASHI_OBJS)
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SDL_CFLAGS = $(shell sdl2-config --cflags)
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SDL_LIBS = $(shell sdl2-config --libs)
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LINKFLAGS =
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LIBS = $(SDL_LIBS) -lm
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INCLUDEFLAGS = -Iinclude/ -I$(MUSASHI) $(SDL_CFLAGS) -DMUSASHI_CNF=\"../include/m68kconf.h\"
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INCLUDEFLAGS += -DENABLE_DASM=1
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INCLUDEFLAGS += -DUMAC_MEMSIZE=$(MEMSIZE)
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CFLAGS = $(INCLUDEFLAGS) -Wall -Wextra -pedantic -DSIM
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ifeq ($(DEBUG),1)
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CFLAGS += -Og -g -ggdb -DDEBUG
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endif
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# Basic support for changing screen res (with the MacPlusV3 ROM)
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DISP_WIDTH ?= 512
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DISP_HEIGHT ?= 342
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CFLAGS_CFG = -DDISP_WIDTH=$(DISP_WIDTH) -DDISP_HEIGHT=$(DISP_HEIGHT)
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all: main
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$(MUSASHI_SRC): $(MUSASHI)/m68kops.h
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$(MUSASHI)/m68kops.c $(MUSASHI)/m68kops.h:
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make -C $(MUSASHI) m68kops.c m68kops.h && ./tools/decorate_ops.py $(MUSASHI)/m68kops.c tools/fn_hot200.txt
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prepare: $(MUSASHI)/m68kops.c $(MUSASHI)/m68kops.h
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%.o: %.c
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$(CC) $(CFLAGS) $(CFLAGS_CFG) -c $< -o $@
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main: $(OBJS)
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@echo Linking $(OBJS)
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$(CC) $(LINKFLAGS) $^ $(LIBS) -o $@
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clean:
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make -C $(MUSASHI) clean
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rm -f $(MY_OBJS) main
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################################################################################
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# Mac driver sources (no need to generally rebuild
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# Needs a m68k-linux-gnu binutils, but not GCC.
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M68K_CROSS ?= m68k-linux-gnu-
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M68K_AS = $(M68K_CROSS)as
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M68K_LD = $(M68K_CROSS)ld
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M68K_OBJCOPY = $(M68K_CROSS)objcopy
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include/sonydrv.h: sonydrv.bin
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xxd -i < $< > $@
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.PHONY: sonydrv.bin
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sonydrv.bin: macsrc/sonydrv.S
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@# Yum hacky
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cpp $< | $(M68K_AS) -o sonydrv.o
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$(M68K_LD) sonydrv.o -o sonydrv.elf -Ttext=0
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$(M68K_OBJCOPY) sonydrv.elf -O binary --keep-section=.text $@
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