don't re-enable the cursor blink while there is still pending modem data. this improves performance and visuals.

2022-01-09 19:38:25 -05:00 · 2022-01-09 19:38:25 -05:00 · f486bbfb1b
parent 8fa8d8d1fa
commit f486bbfb1b
1 changed files with 7 additions and 1 deletions
--- a/vt100.main.S
+++ b/vt100.main.S
@ -37,7 +37,6 @@ main	debug main
 	stz SCANINT ; reset 1-sec interrupt


-
 loop
 	bit LOCAL
 	bmi :kb
@ -49,6 +48,13 @@ loop
 	jsr vt100
 :kb	
 	jsr keypress
+
+*
+* if there is pending modem data, don't re-enable the cursor yet.
+* 
+	lda read_q_head
+	cmp read_q_tail
+	bne loop
 	jsr enable_cursor
 	bra loop