initial support for Mega65 extra ROM

c64/basic/,imports.s

@@ -1,28 +1,42 @@
 
 // Routines imported from Kernal - our private API
 
-#import "KERNAL_combined.sym"
+#if ROM_LAYOUT_STD
+	#import "KERNAL_combined.sym"
+#else
+	#import "KERNAL_0_combined.sym"
+#endif
+
+
+.function KERNAL()
+{
+#if ROM_LAYOUT_STD
+	.return KERNAL
+#else
+	.return KERNAL_0
+#endif
+}
 
 
 #if CONFIG_PANIC_SCREEN
-.label panic               = KERNAL.panic
+.label panic               = KERNAL().panic
 #endif
 
-.label hw_entry_reset      = KERNAL.hw_entry_reset
+.label hw_entry_reset      = KERNAL().hw_entry_reset
 
 #if CONFIG_DBG_PRINTF
-.label printf              = KERNAL.printf
+.label printf              = KERNAL().printf
 #endif
 
-.label plot_set            = KERNAL.plot_set
-.label print_hex_byte      = KERNAL.print_hex_byte
-.label print_return        = KERNAL.print_return
-.label print_space         = KERNAL.print_space
+.label plot_set            = KERNAL().plot_set
+.label print_hex_byte      = KERNAL().print_hex_byte
+.label print_return        = KERNAL().print_return
+.label print_space         = KERNAL().print_space
 
 #if CONFIG_SHOW_FEATURES
-.label print_features      = KERNAL.print_features
+.label print_features      = KERNAL().print_features
 #endif
 
 #if CONFIG_SHOW_PAL_NTSC
-.label print_pal_ntsc      = KERNAL.print_pal_ntsc
+.label print_pal_ntsc      = KERNAL().print_pal_ntsc
 #endif