From b50b32afa9db75287b641cf284f4212bddb5f863 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Lov=C3=A9n?= <thomasloven@gmail.com>
Date: Mon, 4 Dec 2017 12:25:04 +0100
Subject: [PATCH] Move VGA cursor when writing to screen

---
 src/kernel/drivers/vga.c  | 10 ++++++++++
 src/kernel/drivers/vga.tt |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/src/kernel/drivers/vga.c b/src/kernel/drivers/vga.c
index c28e7ef..863f9ef 100644
--- a/src/kernel/drivers/vga.c
+++ b/src/kernel/drivers/vga.c
@@ -1,5 +1,6 @@
 #include <vga.h>
 #include <memory.h>
+#include <ports.h>
 
 void *vidmem;
 struct vga_cell{
@@ -20,6 +21,14 @@ void vga_init()
   format = 0x7;
 }
 
+void movecursor()
+{
+  outb(0x3D4, 0x0F);
+  outb(0x3D5, (uint8_t)(cursor & 0xFF));
+  outb(0x3D4, 0x0E);
+  outb(0x3D5, (uint8_t)((cursor >> 8) & 0xFF));
+}
+
 void flush()
 {
   memcpy(vidmem, buffer, sizeof(buffer));
@@ -53,4 +62,5 @@ void vga_write(char c)
   }
   scroll();
   flush();
+  movecursor();
 }
diff --git a/src/kernel/drivers/vga.tt b/src/kernel/drivers/vga.tt
index dab92f8..53bcced 100644
--- a/src/kernel/drivers/vga.tt
+++ b/src/kernel/drivers/vga.tt
@@ -1,6 +1,9 @@
 // vim: ft=c
 #include <ttest.h>
 
+#include <ports.h>
+#undef outb
+#define outb(...)
 #include <vga.h>
 #undef VGA_MEMORY
 #define VGA_MEMORY calloc(80*24,3)