Hello world program to be used for monitor demo

assembly/applications/hello_world.asm

@@ -0,0 +1,16 @@
+; Prints "Hello world" in terminal
+; Usage: assemble this file with z80asm and insert the resulting bytes
+; via Memory Monitor from address 0xA000 to test SET and RUN commands.
+
+org 0xA000  ; Set starting position to ram
+ld bc, HELLO_WORLD_STR
+Term_print:
+    ld a, (bc)  ; bc is the pointer to string's first char
+    cp 0        ; compare A content with 0 (subtract 0 from value and set zero flag Z if result is 0)
+    jp z, term_print_end
+    out (0x00),a    ; output char to IO device 0, addr 0
+    inc bc ; increment bc to move to next char
+    jp Term_print
+	term_print_end:
+	halt
+HELLO_WORLD_STR: DB "Hello world!",0