diff --git a/snes/Makefile b/snes/Makefile
index 079b43e..253cac4 100644
--- a/snes/Makefile
+++ b/snes/Makefile
@@ -1,19 +1,23 @@
 OBJS = header.ips reset.o65 main.o65 font.o65 palette.o65 data.o65 const.o65 logo.o65 logospr.o65 text.o65 dma.o65 menu.o65 pad.o65 time.o65 mainmenu.o65 sysinfo.o65 # gfx.o65 # vars.o65
 
-all: menu.bin
+all: clean menu.bin map
 
 smc: menu.bin
 	cat menu.bin sd2snes.rom > menu.smc
+
+map: menu.bin
+	utils/mkmap.sh $(OBJS)
+
 menu.bin: $(OBJS)
-	sneslink -fsmc -o $@ $^
+	sneslink -fsmc -o $@ $^ 2>&1 | tee link.log
 
 # Generic rule to create .o65 out from .a65
 %.o65: %.a65
-	snescom -J -Wall -o $@ $<
+	snescom -J -Wall -o $@ $< 2>&1 | tee $@.log
 
 # Generic rule to create .ips out from .a65
 %.ips: %.a65
-	snescom -I -J -Wall -o $@ $<
+	snescom -I -J -Wall -o $@ $< 2>&1 | tee $@.log
 
 clean:
 	rm -f *.ips *.o65 *~ menu.bin
diff --git a/snes/data.a65 b/snes/data.a65
index df04d5d..6f7abd5 100644
--- a/snes/data.a65
+++ b/snes/data.a65
@@ -1,3 +1,4 @@
+*=$7E0000
 .data
 ;don't anger the stack!
 dirptr_addr	.word	0
diff --git a/snes/header.a65 b/snes/header.a65
index d33cd62..02d6c73 100644
--- a/snes/header.a65
+++ b/snes/header.a65
@@ -1,6 +1,16 @@
-; This file is part of the snescom-asm demo - a demo of how to build a SNES program.
+; This file is a modified version of the header.a65 file from:
+; snescom-asm demo - a demo of how to build a SNES program.
 ; See http://bisqwit.iki.fi/source/snescom.html for details.
 
+; fill whole area beforehand so the linker does not create multiple
+; objects from it. (necessary for map creation)
+
+*= $C0FF00
+	.word 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+	.word 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+	.word 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+	.word 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
+
 ; Begin assembling to this address.
 *= $C0FF00
 
diff --git a/snes/utils/mkmap.sh b/snes/utils/mkmap.sh
new file mode 100755
index 0000000..b133c3b
--- /dev/null
+++ b/snes/utils/mkmap.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+args=("$@")
+objcount=0
+
+grep object_ link.log | \
+sed -e 's/object_//g; s/_code//g; s/_data//g' | \
+while read obj; do
+  objcount=$((objcount+1))
+  read base idx <<< "$obj"
+  base="0x${base}"
+  fn=${args[$idx-1]}
+  echo ======$fn, base=$base====== > ${fn%%.*}.map
+  sed -e '/^Externs/,$d;/^Labels/d' < $fn.log | \
+  while read line; do
+    read addr label <<< "$line"
+    addr="0x$addr"
+    decaddr=`printf "%d" $addr`
+    [ "$decaddr" -gt "65535" ] && base=0
+    ea=`printf "%X" $((base+addr))`
+    echo $ea $label >> ${fn%%.*}.map
+  done
+done
+