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authormanzerbredes <loic.guegan_secondary@yahoo.fr>2015-07-17 17:14:42 +0400
committermanzerbredes <loic.guegan_secondary@yahoo.fr>2015-07-17 17:14:42 +0400
commitc83e3bf27fdc7086a7f8c93a8ca63ef976c758e5 (patch)
tree537615759dcfca6e618436aa3c0a1c2b0b8f9be2
parentbd68108ff335f7f02c8517ac2d81b079679958ff (diff)
Create a simple bootloader with nasm
-rw-r--r--bootloader/Makefile8
-rw-r--r--bootloader/bootloader.asm14
2 files changed, 22 insertions, 0 deletions
diff --git a/bootloader/Makefile b/bootloader/Makefile
new file mode 100644
index 0000000..9cb2ec5
--- /dev/null
+++ b/bootloader/Makefile
@@ -0,0 +1,8 @@
+
+
+
+bootloader.bin: bootloader.asm
+ nasm -f bin -o $@ $^
+
+clean:
+ rm bootloader.bin
diff --git a/bootloader/bootloader.asm b/bootloader/bootloader.asm
new file mode 100644
index 0000000..8009ff0
--- /dev/null
+++ b/bootloader/bootloader.asm
@@ -0,0 +1,14 @@
+[BITS 16]
+
+;Save the first adress in with start label
+start:
+
+;Init CPU registers
+mov ax, 0x0C70
+mov ds, ax ;Init data segment
+
+;Complete the MBR with nothing
+times 510 - ($ - start) db 0x0
+
+;Declare magic number
+dw 0xAA55