X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=3sys;a=blobdiff_plain;f=sys1%2Fkern%2Fsrc%2Fmain.c;h=00d3882b0cb59db2d39f3dae61272cdeb185f913;hp=f0441e587454a56bb320222b85721dfe0c03c55b;hb=a9ac2db02f009e086df85d25dc9b32452f259538;hpb=d49aa763f9b7c4ae66cf80f0cbfc3456789fc0ac

diff --git a/sys1/kern/src/main.c b/sys1/kern/src/main.c
index f0441e5..00d3882 100644
--- a/sys1/kern/src/main.c
+++ b/sys1/kern/src/main.c
@@ -12,11 +12,31 @@ void drawtext(int x, int y, const char *s)
 
 void kmain(void)
 {
+	int i, row;
+	int line, scroll;
 	char buf[64];
+	char twirl[] = "-\\|/";
 
 	vga_reset();
-	vga_setcolor(VGA_YELLOW | VGA_BRIGHT, VGA_BLACK);
 
-	sprintf(buf, "kmain addr: %p", (void*)kmain);
-	drawtext(10, 5, buf);
+	line = 0;
+	for(;;) {
+		scroll = line <= 24 ? 0 : line - 24;
+		row = line <= 24 ? line : 24;
+		sprintf(buf, "line %d  (scroll %d [%d])", line, scroll, scroll % 25);
+		vga_scroll(scroll);
+		if(scroll) {
+			vga_clearline(24);
+		}
+		vga_setcolor(VGA_YELLOW | VGA_BRIGHT, VGA_BLACK);
+		drawtext(line & 7, row, buf);
+
+		for(i=0; i<65536 * 4; i++) {
+			buf[0] = twirl[(i >> 18) & 3];
+			buf[1] = 0;
+			vga_setcolor(VGA_WHITE, VGA_BLACK);
+			drawtext(50, row, buf);
+		}
+		line++;
+	}
 }