save restore cursor

2021-09-26 19:44:12 -04:00 · 2021-09-26 19:44:12 -04:00 · dbf4e07b95
parent 74d0ee7f07
commit dbf4e07b95
1 changed files with 14 additions and 1 deletions
--- a/vt100.esc.S
+++ b/vt100.esc.S
@ -133,9 +133,22 @@ vt100_esc ent


 esc_7 ; save cursor position, graphic rendition, and character set.
+
+	lda x
+	sta saved_x
+	lda y
+	sta saved_y
+
 	rts
 esc_8 ; restore cursor position, graphic rendition, and character set.
-	rts 
+
+* TODO - how does this interact with DECOM?
+
+	lda saved_x
+	sta x
+	lda saved_y
+	sta y
+	jmp recalc_cursor

 esc_eq ; enter alternate keypad mode
 	lda #$80