3 files changed, 293 insertions, 0 deletions
diff --git a/arm7/.cvsignore b/arm7/.cvsignore
new file mode 100644
index 0000000..945fe94
--- /dev/null
+++ b/arm7/.cvsignore
@@ -0,0 +1,7 @@
+build
+*.arm9
+*.arm7
+*.ds.gba
+*.elf
+*.nds
+*.p
diff --git a/arm7/Makefile b/arm7/Makefile
new file mode 100644
index 0000000..bc9acb7
--- /dev/null
+++ b/arm7/Makefile
@@ -0,0 +1,132 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/ds_rules
+
+#---------------------------------------------------------------------------------
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# INCLUDES is a list of directories containing extra header files
+# DATA is a list of directories containing binary files
+# all directories are relative to this makefile
+#---------------------------------------------------------------------------------
+BUILD		:=	build
+SOURCES		:=	source  
+INCLUDES	:=	include build ../common_include
+DATA		:=
+ 
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-mthumb-interwork
+
+CFLAGS	:=	-g -Wall -O2\
+		-mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer\
+		-ffast-math \
+		$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM7
+CXXFLAGS	:=	$(CFLAGS) -fno-rtti -fno-exceptions -fno-rtti
+
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=ds_arm7.specs -g $(ARCH) -Wl,-Map,$(notdir $*).map
+
+LIBS	:=	-lnds7
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:=	$(LIBNDS)
+ 
+  
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+ 
+export ARM7BIN	:=	$(TOPDIR)/$(TARGET).arm7
+export ARM7ELF	:=	$(CURDIR)/$(TARGET).arm7.elf
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
+ 
+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)/*.*)))
+ 
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+ 
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+ 
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+.PHONY: $(BUILD) clean
+ 
+#---------------------------------------------------------------------------------
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+ 
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) *.elf
+ 
+ 
+#---------------------------------------------------------------------------------
+else
+ 
+DEPENDS	:=	$(OFILES:.o=.d)
+ 
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(ARM7BIN)	:	$(ARM7ELF)
+	@$(OBJCOPY) -O binary $< $@
+	@echo built ... $(notdir $@)
+
+
+$(ARM7ELF)	:	$(OFILES)
+	@echo linking $(notdir $@)
+	@$(LD)  $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
+
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data 
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+-include $(DEPENDS)
+ 
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------
diff --git a/arm7/source/main.c b/arm7/source/main.c
new file mode 100644
index 0000000..f2a1b98
--- /dev/null
+++ b/arm7/source/main.c
@@ -0,0 +1,154 @@
+/*
+   ds48 - Nintendo DS ZX Spectrum emulator.
+
+   Copyright (C) 2007  Ian Cowburn <ianc@noddybox.co.uk>
+   
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+   $Id$
+
+   This code is based on the example templates for ndslib
+*/
+
+#include <nds.h>
+#include <stdlib.h>
+
+//---------------------------------------------------------------------------------
+void startSound(int sampleRate, const void* data, u32 bytes, u8 channel, u8 vol,  u8 pan, u8 format) {
+//---------------------------------------------------------------------------------
+	SCHANNEL_TIMER(channel)  = SOUND_FREQ(sampleRate);
+	SCHANNEL_SOURCE(channel) = (u32)data;
+	SCHANNEL_LENGTH(channel) = bytes >> 2 ;
+	SCHANNEL_CR(channel)     = SCHANNEL_ENABLE | SOUND_ONE_SHOT | SOUND_VOL(vol) | SOUND_PAN(pan) | (format==1?SOUND_8BIT:SOUND_16BIT);
+}
+
+
+//---------------------------------------------------------------------------------
+s32 getFreeSoundChannel() {
+//---------------------------------------------------------------------------------
+	int i;
+	for (i=0; i<16; i++) {
+		if ( (SCHANNEL_CR(i) & SCHANNEL_ENABLE) == 0 ) return i;
+	}
+	return -1;
+}
+
+int vcount;
+touchPosition first,tempPos;
+
+//---------------------------------------------------------------------------------
+void VcountHandler() {
+//---------------------------------------------------------------------------------
+	static int lastbut = -1;
+	
+	uint16 but=0, x=0, y=0, xpx=0, ypx=0, z1=0, z2=0;
+
+	but = REG_KEYXY;
+
+	if (!( (but ^ lastbut) & (1<<6))) {
+ 
+		tempPos = touchReadXY();
+
+		if ( tempPos.x == 0 || tempPos.y == 0 ) {
+			but |= (1 <<6);
+			lastbut = but;
+		} else {
+			x = tempPos.x;
+			y = tempPos.y;
+			xpx = tempPos.px;
+			ypx = tempPos.py;
+			z1 = tempPos.z1;
+			z2 = tempPos.z2;
+		}
+		
+	} else {
+		lastbut = but;
+		but |= (1 <<6);
+	}
+
+	if ( vcount == 80 ) {
+		first = tempPos;
+	} else {
+		if (	abs( xpx - first.px) > 10 || abs( ypx - first.py) > 10 ||
+				(but & ( 1<<6)) ) {
+
+			but |= (1 <<6);
+			lastbut = but;
+
+		} else { 	
+			IPC->mailBusy = 1;
+			IPC->touchX			= x;
+			IPC->touchY			= y;
+			IPC->touchXpx		= xpx;
+			IPC->touchYpx		= ypx;
+			IPC->touchZ1		= z1;
+			IPC->touchZ2		= z2;
+			IPC->mailBusy = 0;
+		}
+	}
+	IPC->buttons		= but;
+	vcount ^= (80 ^ 130);
+	SetYtrigger(vcount);
+
+}
+
+//---------------------------------------------------------------------------------
+void VblankHandler(void) {
+//---------------------------------------------------------------------------------
+
+	u32 i;
+
+
+	//sound code  :)
+	TransferSound *snd = IPC->soundData;
+	IPC->soundData = 0;
+
+	if (0 != snd) {
+
+		for (i=0; i<snd->count; i++) {
+			s32 chan = getFreeSoundChannel();
+
+			if (chan >= 0) {
+				startSound(snd->data[i].rate, snd->data[i].data, snd->data[i].len, chan, snd->data[i].vol, snd->data[i].pan, snd->data[i].format);
+			}
+		}
+	}
+
+}
+
+//---------------------------------------------------------------------------------
+int main(int argc, char ** argv) {
+//---------------------------------------------------------------------------------
+
+	// Reset the clock if needed
+	rtcReset();
+
+	//enable sound
+	powerON(POWER_SOUND);
+	SOUND_CR = SOUND_ENABLE | SOUND_VOL(0x7F);
+	IPC->soundData = 0;
+
+	irqInit();
+	irqSet(IRQ_VBLANK, VblankHandler);
+	SetYtrigger(80);
+	vcount = 80;
+	irqSet(IRQ_VCOUNT, VcountHandler);
+	irqEnable(IRQ_VBLANK | IRQ_VCOUNT);
+
+	// Keep the ARM7 idle
+	while (1) swiWaitForVBlank();
+}
+
+