diff --git a/samples/echo_irq/Makefile b/samples/echo_irq/Makefile
index 2b8302e..897f3a7 100644
--- a/samples/echo_irq/Makefile
+++ b/samples/echo_irq/Makefile
@@ -7,7 +7,7 @@ echo_irq: echo_irq.o
 	$(LD) -C symon.config -vm -m echo_irq.map -o echo_irq.rom echo_irq.o
 
 echo_irq.o:
-	$(CA) --listing -o echo_irq.o echo_irq.asm
+	$(CA) --listing echo_irq.lst -o echo_irq.o echo_irq.asm
 
 clean:
 	rm -f *.o *.rom *.map *.lst
diff --git a/samples/echo_irq/symon.config b/samples/echo_irq/symon.config
index 6d5ae20..3f1a615 100644
--- a/samples/echo_irq/symon.config
+++ b/samples/echo_irq/symon.config
@@ -1,5 +1,5 @@
 MEMORY {
-RAM1: start = $0000, size = $8000;
+RAM1: start = $0000, size = $8000 - __STACKSIZE__;
 ROM1: start = $C000, size = $3FFA, fill = yes;
 ROMV: start = $FFFA, size = $6, file = %O, fill = yes;
 }
@@ -11,6 +11,6 @@ VECTORS:  load = ROMV, type = ro;
 }
 
 SYMBOLS {
-__STACKSIZE__ = $0300;
+__STACKSIZE__: type = weak, value = $0300;
 }
 
diff --git a/samples/ehbasic/Makefile b/samples/ehbasic/Makefile
index 6a3c38b..e60721a 100644
--- a/samples/ehbasic/Makefile
+++ b/samples/ehbasic/Makefile
@@ -7,7 +7,7 @@ ehbasic: ehbasic.o
 	$(LD) -C symon.config -vm -m ehbasic.map -o ehbasic.rom ehbasic.o
 
 ehbasic.o:
-	$(CA) --listing -o ehbasic.o min_mon.asm
+	$(CA) --listing ehbasic.lst -o ehbasic.o min_mon.asm
 
 clean:
 	rm -f *.o *.rom *.map *.lst
diff --git a/samples/ehbasic/symon.config b/samples/ehbasic/symon.config
index f7eb850..39bf6f2 100644
--- a/samples/ehbasic/symon.config
+++ b/samples/ehbasic/symon.config
@@ -1,5 +1,5 @@
 MEMORY {
-RAM1: start = $0000, size = $8000;
+RAM1: start = $0000, size = $8000 - __STACKSIZE__;
 ROM1: start = $C000, size = $3F00, fill = yes;
 MONITOR: start = $FF00, size = $FA, fill = yes;
 ROMV: start = $FFFA, size = $6, file = %O, fill = yes;
@@ -13,6 +13,6 @@ VECTORS:  load = ROMV, type = ro;
 }
 
 SYMBOLS {
-__STACKSIZE__ = $0300;
+__STACKSIZE__: type = weak, value = $0300;
 }
 
diff --git a/samples/ehbasic_crtc/Makefile b/samples/ehbasic_crtc/Makefile
index 6a3c38b..e60721a 100644
--- a/samples/ehbasic_crtc/Makefile
+++ b/samples/ehbasic_crtc/Makefile
@@ -7,7 +7,7 @@ ehbasic: ehbasic.o
 	$(LD) -C symon.config -vm -m ehbasic.map -o ehbasic.rom ehbasic.o
 
 ehbasic.o:
-	$(CA) --listing -o ehbasic.o min_mon.asm
+	$(CA) --listing ehbasic.lst -o ehbasic.o min_mon.asm
 
 clean:
 	rm -f *.o *.rom *.map *.lst
diff --git a/samples/ehbasic_crtc/symon.config b/samples/ehbasic_crtc/symon.config
index fbaeee2..8b9bb31 100644
--- a/samples/ehbasic_crtc/symon.config
+++ b/samples/ehbasic_crtc/symon.config
@@ -1,5 +1,5 @@
 MEMORY {
-RAM1: start = $0000, size = $8000;
+RAM1: start = $0000, size = $8000 - __STACKSIZE__;
 ROM1: start = $C000, size = $3C00, fill = yes;
 MONITOR: start = $FC00, size = $3FA, fill = yes;
 ROMV: start = $FFFA, size = $6, file = %O, fill = yes;
@@ -13,6 +13,6 @@ VECTORS:  load = ROMV, type = ro;
 }
 
 SYMBOLS {
-__STACKSIZE__ = $0300;
+__STACKSIZE__: type = weak, value = $0300;
 }