From: Joshua Wise <joshua@rebirth.joshuawise.com>
Date: Wed, 10 Sep 2008 18:34:50 +0000 (-0400)
Subject: Add little multiboot stub
X-Git-Url: http://git.joshuawise.com/netwatch.git/commitdiff_plain/56553b7318d2a1466ad07c1955d30a5744b16f12

Add little multiboot stub
---

diff --git a/grubload/multiboot.S b/grubload/multiboot.S
new file mode 100644
index 0000000..bddd8fd
--- /dev/null
+++ b/grubload/multiboot.S
@@ -0,0 +1,21 @@
+.globl _start
+
+_start:
+	jmp multiboot_entry
+
+	.align 4
+multiboot_header:
+	.long 0x1badb002	/* Magic value */
+	.long 0x00000001	/* Flags -- "Please align modules for me" */
+	.long 0xE4524FFD	/* Checksum */
+
+multiboot_entry:
+	mov $_stack_top, %esp
+	pushl %ebx	/* Multiboot info structure */
+	pushl %eax	/* Magic number */
+	jmp c_start
+
+	.align 4
+_stack:
+	.space 16384
+_stack_top:
diff --git a/grubload/multiboot_c.c b/grubload/multiboot_c.c
new file mode 100644
index 0000000..7c6a4fd
--- /dev/null
+++ b/grubload/multiboot_c.c
@@ -0,0 +1,6 @@
+void c_start(unsigned int magic, void *wee)
+{
+	*(unsigned char *)0xB8000 = 'A';
+	while (1)
+		;
+}