From a33c25d744c8a33c38dffca50ef34ba9d90d9c84 Mon Sep 17 00:00:00 2001
From: Xnoe <xnoe@xnoe.moe>
Date: Mon, 30 Aug 2021 08:11:11 +0100
Subject: [PATCH] Added programs to properly test inter-segment file read and
 write

---
 Makefile  |  8 ++++++--
 hello.txt |  5 +++++
 print.asm | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+), 2 deletions(-)
 create mode 100644 hello.txt
 create mode 100644 print.asm

diff --git a/Makefile b/Makefile
index 5adfe4f..e65221a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,9 @@
-disk.img: boot.sector kernel.bin hello.bin
+disk.img: boot.sector kernel.bin hello.bin print.bin hello.txt
 	dd if=/dev/zero of=disk.img count=43 bs=100k
 	dd if=boot.sector of=disk.img conv=notrunc
 	mount disk.img img.d
 	cp *.bin img.d/
+	cp hello.txt img.d/
 	umount img.d
 	chmod 777 disk.img
 
@@ -13,4 +14,7 @@ kernel.bin: kernel.asm
 	nasm kernel.asm -o $@
 
 hello.bin: hello.asm
-	nasm hello.asm -o $@
\ No newline at end of file
+	nasm hello.asm -o $@
+
+print.bin: print.asm
+	nasm print.asm -o $@
\ No newline at end of file
diff --git a/hello.txt b/hello.txt
new file mode 100644
index 0000000..68f6994
--- /dev/null
+++ b/hello.txt
@@ -0,0 +1,5 @@
+HELLO WORLD!
+
+THIS IS A TEST MESSAGE TO SEE IF I CAN LOAD AND PRINT THIS FILE!
+
+WOOOOOOO
diff --git a/print.asm b/print.asm
new file mode 100644
index 0000000..fd31c46
--- /dev/null
+++ b/print.asm
@@ -0,0 +1,36 @@
+  mov ax, 3000h
+  mov ds, ax
+
+  mov si, filename
+  mov ah, 4
+  int 22h
+
+  cmp ax, 0
+  je error
+
+  mov si, ax
+  mov di, 0
+  mov bx, 4000h
+  mov ah, 3
+  int 22h
+
+  mov ax, 4000h
+  mov ds, ax
+  mov si, 0
+  mov ah, 1
+  int 22h
+
+  mov ax, 2000h
+  mov ds, ax
+  jmp exit
+
+error:
+  mov si, err_msg
+  mov ah, 1
+  int 22h
+
+exit:
+  retf
+
+filename db "HELLO   TXT"
+err_msg db "HELLO.TXT Missing!"
\ No newline at end of file