helloworld-demo

samples/cbm/Makefile

@@ -135,6 +135,8 @@ plasma: plasma.c
 	$(CL) -t $(SYS) -O -o plasma -m plasma.map plasma.c
 nachtm: nachtm.c
 	$(CL) -t $(SYS) -O -o nachtm -m nachtm.map nachtm.c
+hello: hello.s
+	$(CL) -t $(SYS) -C c64-asm.cfg -u __EXEHDR__ hello.s -o hello.prg
 
 # --------------------------------------------------------------------------
 # Rule to make a CBM disk with all samples. Needs the c1541 program that comes

samples/cbm/hello.s

@@ -0,0 +1,18 @@
+.macpack cbm
+
+start:
+    lda #14
+    jsr $ffd2
+
+    ldy #0
+loop:
+    lda message,y
+    beq done
+    sta $0400,y
+    iny
+    bne loop
+done:
+    rts
+
+message:
+    scrcode "Hello, World!@"