1 ac0e2db6 2004-04-21 devnull .text
 2 ac0e2db6 2004-04-21 devnull .p2align 2,0x90
 3 ac0e2db6 2004-04-21 devnull .globl mpdigdiv
 4 ac0e2db6 2004-04-21 devnull mpdigdiv:
 5 ac0e2db6 2004-04-21 devnull 	/* Prelude */
 6 39ce0d58 2006-03-22 devnull 	pushl %ebp		/* save on stack */
 7 39ce0d58 2006-03-22 devnull 	pushl %ebx
 8 39ce0d58 2006-03-22 devnull 	
 9 39ce0d58 2006-03-22 devnull 	leal 12(%esp), %ebp	/* %ebp = FP for now */
10 39ce0d58 2006-03-22 devnull 	movl 0(%ebp), %ebx	/* dividend */
11 39ce0d58 2006-03-22 devnull 	movl 0(%ebx), %eax
12 39ce0d58 2006-03-22 devnull 	movl 4(%ebx), %edx
13 39ce0d58 2006-03-22 devnull 	movl 4(%ebp), %ebx	/* divisor */
14 39ce0d58 2006-03-22 devnull 	movl 8(%ebp), %ebp	/* quotient */
15 ac0e2db6 2004-04-21 devnull 
16 ac0e2db6 2004-04-21 devnull 	xorl	%ecx, %ecx
17 ac0e2db6 2004-04-21 devnull 	cmpl	%ebx, %edx		/* dividend >= 2^32 * divisor */
18 ac0e2db6 2004-04-21 devnull 	jae	divovfl
19 ac0e2db6 2004-04-21 devnull 	cmpl	%ecx, %ebx		/* divisor == 1 */
20 ac0e2db6 2004-04-21 devnull 	je	divovfl
21 ac0e2db6 2004-04-21 devnull 	divl	%ebx		/* AX = DX:AX/BX */
22 ac0e2db6 2004-04-21 devnull 	movl	%eax, (%ebp)
23 39ce0d58 2006-03-22 devnull done:
24 39ce0d58 2006-03-22 devnull 	/* Postlude */
25 39ce0d58 2006-03-22 devnull 	popl %ebx
26 39ce0d58 2006-03-22 devnull 	popl %ebp
27 39ce0d58 2006-03-22 devnull 	ret
28 ac0e2db6 2004-04-21 devnull 
29 ac0e2db6 2004-04-21 devnull 	/* return all 1's */
30 ac0e2db6 2004-04-21 devnull divovfl:
31 ac0e2db6 2004-04-21 devnull 	notl	%ecx
32 ac0e2db6 2004-04-21 devnull 	movl	%ecx, (%ebp)
33 39ce0d58 2006-03-22 devnull 	jmp done