shithub: riscv

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vt: turn off nl -> nl+cr translation default in raw mode, don't scroll more than screen height

--- a/sys/src/cmd/vt/main.c

+++ b/sys/src/cmd/vt/main.c

@@ -101,7 +101,7 @@

 };

 /* terminal control */

-struct ttystate ttystate[2] = { {0, 1}, {0, 1} };

+struct ttystate ttystate[2] = { {0, 1}, {0, 0} };

 Point	margin;

 Point	ftsize;

@@ -347,10 +347,9 @@

 	hidecursor();

-	if(scrolloff != 0){

-		n = scrolloff % (ymax+1);

-		draw(screen, Rpt(pt(0,0), pt(xmax+2, ymax+1-n)), screen, nil, pt(0, n));

-	}

+	if(scrolloff && scrolloff <= ymax)

+		draw(screen, Rpt(pt(0,0), pt(xmax+2, ymax+1-scrolloff)),

+			screen, nil, pt(0, scrolloff));

 	for(y = 0; y <= ymax; y++){

 		if(!screenchange(y))