1 42a57eff 2005-07-19 devnull .globl _tas
 2 42a57eff 2005-07-19 devnull _tas:
 3 42a57eff 2005-07-19 devnull 	movl $0xCAFEBABE, %eax
 4 42a57eff 2005-07-19 devnull 	movl 4(%esp), %ecx
 5 42a57eff 2005-07-19 devnull 	xchgl %eax, 0(%ecx)
 6 42a57eff 2005-07-19 devnull 	ret
 7 42a57eff 2005-07-19 devnull 
 8 42a57eff 2005-07-19 devnull .globl setmcontext
 9 42a57eff 2005-07-19 devnull setmcontext:
10 42a57eff 2005-07-19 devnull 	movl 4(%esp), %edx
11 42a57eff 2005-07-19 devnull 	movl	8(%edx), %fs
12 42a57eff 2005-07-19 devnull 	movl	12(%edx), %es
13 42a57eff 2005-07-19 devnull 	movl	16(%edx), %ds
14 42a57eff 2005-07-19 devnull 	movl	76(%edx), %ss
15 42a57eff 2005-07-19 devnull 	movl	20(%edx), %edi
16 42a57eff 2005-07-19 devnull 	movl	24(%edx), %esi
17 42a57eff 2005-07-19 devnull 	movl	28(%edx), %ebp
18 42a57eff 2005-07-19 devnull 	movl	%esp, %ecx		 
19 42a57eff 2005-07-19 devnull 	movl	72(%edx), %esp		 
20 42a57eff 2005-07-19 devnull 	pushl	60(%edx)	/* eip */	 
21 42a57eff 2005-07-19 devnull 	pushl	44(%edx)	/* ecx */	 
22 42a57eff 2005-07-19 devnull 	pushl	48(%edx)	/* eax */	 
23 42a57eff 2005-07-19 devnull 	movl	36(%edx), %ebx		 
24 42a57eff 2005-07-19 devnull 	movl	40(%edx), %edx
25 42a57eff 2005-07-19 devnull 	movl	12(%ecx), %eax		 
26 42a57eff 2005-07-19 devnull 	popl	%eax			 
27 42a57eff 2005-07-19 devnull 	popl	%ecx
28 42a57eff 2005-07-19 devnull 	ret
29 42a57eff 2005-07-19 devnull 
30 42a57eff 2005-07-19 devnull .globl getmcontext
31 42a57eff 2005-07-19 devnull getmcontext:
32 42a57eff 2005-07-19 devnull 	pushl	%edx
33 42a57eff 2005-07-19 devnull 	movl	8(%esp), %edx
34 42a57eff 2005-07-19 devnull 	movl	%fs, 8(%edx)
35 42a57eff 2005-07-19 devnull 	movl	%es, 12(%edx)
36 42a57eff 2005-07-19 devnull 	movl	%ds, 16(%edx)
37 42a57eff 2005-07-19 devnull 	movl	%ss, 76(%edx)
38 42a57eff 2005-07-19 devnull 	movl	%edi, 20(%edx)
39 42a57eff 2005-07-19 devnull 	movl	%esi, 24(%edx)
40 42a57eff 2005-07-19 devnull 	movl	%ebp, 28(%edx)
41 42a57eff 2005-07-19 devnull 	movl	%ebx, 36(%edx)
42 42a57eff 2005-07-19 devnull 	movl	$1, 48(%edx)
43 42a57eff 2005-07-19 devnull 	popl	%eax
44 42a57eff 2005-07-19 devnull 	movl	%eax, 40(%edx)		 
45 42a57eff 2005-07-19 devnull 	movl	%ecx, 44(%edx)
46 42a57eff 2005-07-19 devnull 	movl	(%esp), %eax	/* eip */		 
47 42a57eff 2005-07-19 devnull 	movl	%eax, 60(%edx)		 
48 42a57eff 2005-07-19 devnull 	movl	%esp, %eax		 
49 42a57eff 2005-07-19 devnull 	addl	$4, %eax	/* setmcontext will re-push the eip */	 
50 42a57eff 2005-07-19 devnull 	movl	%eax, 72(%edx)
51 42a57eff 2005-07-19 devnull 	movl	40(%edx), %edx		 
52 42a57eff 2005-07-19 devnull 	xorl	%eax, %eax		 
53 42a57eff 2005-07-19 devnull 	ret
54 42a57eff 2005-07-19 devnull