From ce7317daf7c9740bc8595f14f7248fa1b050afcf Mon Sep 17 00:00:00 2001
From: xeno <xeno@eisberg.nacht>
Date: Thu, 23 Feb 2017 23:49:18 +0100
Subject: initial commit with some old assembly stuff

---
 printb.asm | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 printb.asm

(limited to 'printb.asm')

diff --git a/printb.asm b/printb.asm
new file mode 100644
index 0000000..a8fa788
--- /dev/null
+++ b/printb.asm
@@ -0,0 +1,36 @@
+org 0x0500
+
+
+SECTION .data
+boot: db 'Welcome to the second stage!', 0x0A, 0x0D, 0x00
+foo: db 'What a nice message this is!', 0x0A, 0x0D, 0x00
+
+SECTION .text
+
+
+jmp start
+
+print:
+	push ax
+	cld
+	mov ah, 0x0E
+
+	.loop:
+	lodsb
+	cmp al, 0x00
+	je .out
+	int 0x10
+	jmp .loop
+	.out:
+	pop ax
+	ret
+
+start:
+	mov si, boot
+	call print
+
+	mov si, foo
+	call print
+
+; maybe to something here...
+; e.g.: how to keep CPU from spinning at 100%
-- 
cgit