more work on new memory models

c64/basic/basic_delete_line.s

@@ -23,6 +23,8 @@ basic_delete_line:
 #if CONFIG_MEMORY_MODEL_60K
 	ldx #<OLDTXT
 	jsr peek_under_roms
+#elif CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
+	jsr peek_under_roms_via_OLDTXT
 #else // CONFIG_MEMORY_MODEL_38K
 	lda (OLDTXT),y
 #endif
@@ -32,6 +34,8 @@ basic_delete_line:
 
 #if CONFIG_MEMORY_MODEL_60K	
 	jsr peek_under_roms
+#elif CONFIG_MEMORY_MODEL_46K || CONFIG_MEMORY_MODEL_50K
+	jsr peek_under_roms_via_OLDTXT
 #else // CONFIG_MEMORY_MODEL_38K
 	lda (OLDTXT),y
 #endif