From 0f3456c643e13c0bafffb58c80b5eff6195024a1 Mon Sep 17 00:00:00 2001
From: spikey <spikey@fatty.my.domain>
Date: Sat, 17 Feb 2024 19:39:28 -0500
Subject: [PATCH] less broken vga

---
 sys/drv/vga/include/video.h |  7 ++++---
 sys/drv/vga/video.c         | 16 ++++++++++++----
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/sys/drv/vga/include/video.h b/sys/drv/vga/include/video.h
index b9ec86a..4d5c948 100644
--- a/sys/drv/vga/include/video.h
+++ b/sys/drv/vga/include/video.h
@@ -3,11 +3,12 @@
 
 #include <types.h>
 
-#define SIZE		4000	
+#define VGA_SIZE		4000	
 
-s8 *vga_vidmem = (s8 *)0xb8000;
+s8 *vga_vidmem =		(s8 *)0xb8000;
+s8 vga_unused =			0;
 
-void vga_write(s8 *, s8);
+void vga_write(s8 *, s32, s8);
 void vga_clearscreen(void);
 
 #endif
diff --git a/sys/drv/vga/video.c b/sys/drv/vga/video.c
index d8b607a..d0728bb 100644
--- a/sys/drv/vga/video.c
+++ b/sys/drv/vga/video.c
@@ -2,23 +2,31 @@
 #include <video.h>
 
 void
-vga_write(s8 *sequence, s8 flags)
+vga_write(s8 *sequence, s32 size, s8 flags)
 {
+	if (size > VGA_SIZE) {
+		s32 using_size = size - VGA_SIZE;
+
+		for (s32 i = 0; i <= VGA_SIZE; i++) {
+			vga_vidmem[i] = sequence[using_size + i];
+		} 
+	} 
+
 	u32 i = *vga_vidmem;
 
 	while (*sequence != '\0') {
+		vga_vidmem[unused++] = flags;
+		i++;
 		vga_vidmem[i] = *sequence;
 		*sequence++;
 		i++;
-		vga_vidmem[i] = flags;
-		i++;
 	}
 } 
 
 void
 vga_clearscreen(void)
 {
-    for (int i = 0; i <= SIZE; i++) {
+    for (int i = 0; i <= VGA_SIZE; i++) {
         vga_vidmem[i] = 0;
     }
 }