first commit, enjoy

2 files changed, 262 insertions, 0 deletions

@@ -0,0 +1,168 @@
+#---------------------------------------------------------------------------------
+# Clear the implicit built in rules
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM)
+endif
+
+include $(DEVKITARM)/gba_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output, if this ends with _mb a multiboot image is generated
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#---------------------------------------------------------------------------------
+TARGET          :=      $(shell basename $(CURDIR))_mb
+BUILD           :=      build
+SOURCES         :=      source
+DATA            :=
+GRAPHICS        :=      gfx     
+INCLUDES        :=
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH    :=      -mthumb -mthumb-interwork
+
+CFLAGS  :=      -g -Wall -O3\
+                -mcpu=arm7tdmi -mtune=arm7tdmi\
+                -fomit-frame-pointer\
+                -ffast-math \
+                $(ARCH)
+
+CFLAGS  +=      $(INCLUDE)
+
+CXXFLAGS        :=      $(CFLAGS) -fno-rtti -fno-exceptions
+
+ASFLAGS :=      $(ARCH)
+LDFLAGS =       -g $(ARCH) -Wl,-Map,$(notdir $@).map
+
+#---------------------------------------------------------------------------------
+# any extra libraries we wish to link with the project
+#---------------------------------------------------------------------------------
+LIBS    :=      -lgba
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS :=      $(LIBGBA)
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT   :=      $(CURDIR)/$(TARGET)
+export VPATH    :=      $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+                        $(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR  :=      $(CURDIR)/$(BUILD)
+
+#---------------------------------------------------------------------------------
+# automatically build a list of object files for our project
+#---------------------------------------------------------------------------------
+CFILES          :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES        :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES          :=      $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES        :=      $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+BMPFILES        :=      $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.bmp)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+        export LD       :=      $(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+        export LD       :=      $(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES   :=      $(addsuffix .o,$(BINFILES)) \
+                                        $(BMPFILES:.bmp=.o) \
+                                        $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+#---------------------------------------------------------------------------------
+# build a list of include paths
+#---------------------------------------------------------------------------------
+export INCLUDE  :=      $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+                        $(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+                        -I$(CURDIR)/$(BUILD)
+
+#---------------------------------------------------------------------------------
+# build a list of library paths
+#---------------------------------------------------------------------------------
+export LIBPATHS :=      $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+.PHONY: $(BUILD) clean
+
+#---------------------------------------------------------------------------------
+$(BUILD):
+        @[ -d $@ ] || mkdir -p $@
+        @make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+all     : $(BUILD)
+#---------------------------------------------------------------------------------
+clean:
+        @echo clean ...
+        @rm -fr $(BUILD) $(TARGET).elf $(TARGET).gba
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS :=      $(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT).gba   :       $(OUTPUT).elf
+
+$(OUTPUT).elf   :       $(OFILES)
+
+
+#---------------------------------------------------------------------------------
+# The bin2o rule should be copied and modified
+# for each extension used in the data directories
+#---------------------------------------------------------------------------------
+
+#---------------------------------------------------------------------------------
+# This rule links in binary data with the .bin extension
+#---------------------------------------------------------------------------------
+%.bin.o :       %.bin
+#---------------------------------------------------------------------------------
+        @echo $(notdir $<)
+        @$(bin2o)
+
+#---------------------------------------------------------------------------------
+# This rule links in binary data with the .raw extension
+#---------------------------------------------------------------------------------
+%.raw.o :       %.raw
+#---------------------------------------------------------------------------------
+        @echo $(notdir $<)
+        @$(bin2o)
+
+#---------------------------------------------------------------------------------
+# This rule creates assembly source files using grit
+# grit takes an image file and a .grit describing how the file is to be processed
+# add additional rules like this for each image extension
+# you use in the graphics folders 
+#---------------------------------------------------------------------------------
+%.s %.h : %.bmp %.grit
+#---------------------------------------------------------------------------------
+        grit $< -fts -o$*
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
@@ -0,0 +1,94 @@
+
+#include <gba_console.h>
+#include <gba_video.h>
+#include <gba_interrupt.h>
+#include <gba_systemcalls.h>
+#include <gba_input.h>
+#include <gba_sio.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+u32 getGameSize(void)
+{
+        if(*(vu32*)(0x08000004) != 0x51AEFF24)
+                return 0;
+        u32 i;
+        for(i = (1<<20); i < (1<<25); i<<=1)
+        {
+                vu16 *rompos = (vu16*)(0x08000000+i);
+                int j;
+                bool romend = true;
+                for(j = 0; j < 0x1000; j++)
+                {
+                        if(rompos[j] != j)
+                        {
+                                romend = false;
+                                break;
+                        }
+                }
+                if(romend) break;
+        }
+        return i;
+}
+//---------------------------------------------------------------------------------
+// Program entry point
+//---------------------------------------------------------------------------------
+int main(void) {
+//---------------------------------------------------------------------------------
+
+        // the vblank interrupt must be enabled for VBlankIntrWait() to work
+        // since the default dispatcher handles the bios flags no vblank handler
+        // is required
+        irqInit();
+        irqEnable(IRQ_VBLANK);
+
+        consoleDemoInit();
+        REG_JOYTR = 0;
+        // ansi escape sequence to set print co-ordinates
+        // /x1b[line;columnH
+        u32 i;
+        iprintf("\x1b[9;10HROM Dumper\n");
+        iprintf("\x1b[10;5HPlease look at the TV\n");
+        REG_HS_CTRL |= 6;
+        while (1) {
+                if((REG_HS_CTRL&4))
+                {
+                        REG_HS_CTRL |= 4;
+                        u32 gamesize = getGameSize();
+                        REG_JOYTR = gamesize;
+                        while((REG_HS_CTRL&4) == 0) ;
+                        REG_HS_CTRL |= 4;
+                        if(gamesize == 0)
+                        {
+                                REG_JOYTR = 0;
+                                continue; //nothing to read
+                        }
+                        //game in, send header
+                        for(i = 0; i < 0xC0; i+=4)
+                        {
+                                REG_JOYTR = *(vu32*)(0x08000000+i);
+                                while((REG_HS_CTRL&4) == 0) ;
+                                REG_HS_CTRL |= 4;
+                        }
+                        //wait for other side to choose
+                        while((REG_HS_CTRL&2) == 0) ;
+                        REG_HS_CTRL |= 2;
+                        if(REG_JOYRE == 0)
+                        {
+                                REG_JOYTR = 0;
+                                continue; //nothing to read
+                        }
+                        //dump the game
+                        for(i = 0; i < gamesize; i+=4)
+                        {
+                                REG_JOYTR = *(vu32*)(0x08000000+i);
+                                while((REG_HS_CTRL&4) == 0) ;
+                                REG_HS_CTRL |= 4;
+                        }
+                        REG_JOYTR = 0;
+                }
+                Halt();
+        }
+}
+
+