From 08b5f5a9e7a73726f121b5c8819ff2e4a053c695 Mon Sep 17 00:00:00 2001
From: garritfra <garritfranke@gmail.com>
Date: Sat, 9 Feb 2019 14:44:18 +0100
Subject: [PATCH] Enable input

---
 Makefile |   3 +++
 boot.asm |  23 ++++++++++++-----------
 boot.elf | Bin 0 -> 1120 bytes
 3 files changed, 15 insertions(+), 11 deletions(-)
 create mode 100644 boot.elf

diff --git a/Makefile b/Makefile
index d8fd161..07f2fd0 100644
--- a/Makefile
+++ b/Makefile
@@ -5,3 +5,6 @@ image:
 
 bin:
 	nasm -f bin -o boot.bin boot.asm
+
+run: prog
+	qemu-system-x86_64 dittoOS.img
\ No newline at end of file
diff --git a/boot.asm b/boot.asm
index 3536a72..9d30080 100644
--- a/boot.asm
+++ b/boot.asm
@@ -1,5 +1,7 @@
 	BITS 16
 
+main
+
 start:
 	mov ax, 07C0h		; Set up 4K stack space after this bootloader
 	add ax, 288		; (4096 + 512) / 16 bytes per paragraph
@@ -7,24 +9,23 @@ start:
 	mov sp, 4096
 
 	mov ax, 07C0h		; Set data segment to where we're loaded
+	add ax, 1000
 	mov ds, ax
 
-	mov si, text_string	; Put string position into SI
-	call print_string	; Call our string-printing routine
-    
-    mov ah, 1h          ; Read Char (Saved in al)
-    int 21h             ; Execute
-    mov dl, al          ; copy char to dl
-
-    mov ah, 2h          ; Write char
-    int 21h             ; Execute
-
-	jmp $			; Jump here - infinite loop!
+main_loop:	
+	call read_char
+	jmp main_loop			; Jump here - infinite loop!
 
 
 	text_string db 'Loading kernel', 0
 
 
+read_char:
+	mov ah, 0h
+	int 16h
+	mov ah, 0eh
+	int 10h
+
 print_string:			; Routine: output string in SI to screen
 	mov ah, 0Eh		; int 10h 'print char' function
 
diff --git a/boot.elf b/boot.elf
new file mode 100644
index 0000000000000000000000000000000000000000..fff3f8868de372c80ea7d388c727da85158be38a
GIT binary patch
literal 1120
zcmb<-^>JflWMqH=Mh0dE1doBi0V-hvrZpH?8JJ*7Nuoh!f-oCYmjH-^WRw6@oE=Cr
zL)joo0LW29;)Aq-fFKYfX=iW%s@nh*V*z4rC=D`G5{Qw_`vBx*0L5ScW*&^c;{ZFW
z0%PBWJq!XsX5Wn$f();J`{XC4WagzSWTzJ8rRFefVK^(ch3~Au7QQt$3?(dQ1zvwY
z4AVbK59JUDUB#eRl3G#1pjVtxTvAk$m;_{1=0a!)pMdv}(-RBB$N$L6K{<;HSpdlA
zN8^hE`LMhI$}#dlK1d7#7#XyI3>6p`C~pd6>mc!+fNVV^ei)E#j>Kn3%Fi#+ODxW1
z$W6@5V<;|3EGhvr<8$)!3m8D2j|ci3nA#bNQWI0+lQR;F7z%)VxG*wDuPC)3HL(Om
MfnG{}UMk#105B3$^Z)<=

literal 0
HcmV?d00001