Index: Makefile
===================================================================
--- Makefile	(revision c65a0e28c4af16f9b2db6a1bd72e49e1d5951558)
+++ Makefile	(revision bef53a9164ef720f3d3575e5097a0473b3750b62)
@@ -9,13 +9,13 @@
 # the hand-written assembly language code
 
-FLAGS :=		-Os -m68000 -mshort -Wall -Wextra \
+FLAGS :=		-Os -m68000 -Wall -Wextra
+
+FLAGS_COM :=	$(FLAGS) -mshort -std=c99 -ffreestanding \
+				-fno-strict-aliasing -fno-inline -fno-omit-frame-pointer \
 				-Wpedantic -Wcast-align -Wcast-qual -Wconversion -Wsign-conversion \
 				-Wshadow -Wmissing-declarations -Wredundant-decls \
 				-I include
 
-FLAGS_COM :=	$(FLAGS) -std=c99 -ffreestanding \
-				-fno-strict-aliasing -fno-inline -fno-omit-frame-pointer
-
-FLAGS_ASM :=	$(FLAGS)
+FLAGS_ASM :=	$(FLAGS) -Wa,--register-prefix-optional
 
 HEADERS :=		$(wildcard include/*.h)
@@ -127,5 +127,5 @@
 
 ROM_C :=		booter.c romp.c
-ROM_S :=		bios.s timeint.s
+ROM_S :=		bios.s lowram.s timeint.s
 
 ROM_CO :=		$(ROM_C:.c=.o)
@@ -183,9 +183,10 @@
 hatari/c.img:	$(wildcard hatari/c/bin/*) $(wildcard hatari/c/work/*)
 				rm -f hatari/c.img
-				atari-hd-image 8 hatari/c.img BUCHLA hatari/c
+				atari-hd-image 16 hatari/c.img BUCHLA hatari/c
 
 emu:			hatari/c.img
 				hatari \
 				--control-socket /tmp/buchla.sock \
+				--memsize 14 \
 				--vdi-width 1280 --vdi-height 960 \
 				--drive-a false --drive-b false \