BIOS now attached to BOOTCPM command, fixed another screen editor bug

src/kernal/board_m65/mega65_bootcpm.s

@@ -4,6 +4,13 @@
 
 BOOTCPM:
 
-	; jsr map_MON_1
-	; XXX implement system startupo
-	jmp BOOTCPM
+	jsr CLALL
+	clc
+	jsr M65_MODESET
+
+	jsr viciv_init           ; do it now, later it will not be safe anymore
+	lda #$01
+	jsr M65_SCRMODESET
+
+	jsr map_ZVM_1
+	jmp ($2000)