| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | 	.file	"div_small.S" | 
 | 2 | /*---------------------------------------------------------------------------+ | 
 | 3 |  |  div_small.S                                                              | | 
 | 4 |  |                                                                           | | 
 | 5 |  | Divide a 64 bit integer by a 32 bit integer & return remainder.           | | 
 | 6 |  |                                                                           | | 
 | 7 |  | Copyright (C) 1992,1995                                                   | | 
 | 8 |  |                       W. Metzenthen, 22 Parker St, Ormond, Vic 3163,      | | 
 | 9 |  |                       Australia.  E-mail billm@jacobi.maths.monash.edu.au | | 
 | 10 |  |                                                                           | | 
 | 11 |  |                                                                           | | 
 | 12 |  +---------------------------------------------------------------------------*/ | 
 | 13 |  | 
 | 14 | /*---------------------------------------------------------------------------+ | 
 | 15 |  |    unsigned long FPU_div_small(unsigned long long *x, unsigned long y)    | | 
 | 16 |  +---------------------------------------------------------------------------*/ | 
 | 17 |  | 
 | 18 | #include "fpu_emu.h" | 
 | 19 |  | 
 | 20 | .text | 
 | 21 | ENTRY(FPU_div_small) | 
 | 22 | 	pushl	%ebp | 
 | 23 | 	movl	%esp,%ebp | 
 | 24 |  | 
 | 25 | 	pushl	%esi | 
 | 26 |  | 
 | 27 | 	movl	PARAM1,%esi	/* pointer to num */ | 
 | 28 | 	movl	PARAM2,%ecx	/* The denominator */ | 
 | 29 |  | 
 | 30 | 	movl	4(%esi),%eax	/* Get the current num msw */ | 
 | 31 | 	xorl	%edx,%edx | 
 | 32 | 	divl	%ecx | 
 | 33 |  | 
 | 34 | 	movl	%eax,4(%esi) | 
 | 35 |  | 
 | 36 | 	movl	(%esi),%eax	/* Get the num lsw */ | 
 | 37 | 	divl	%ecx | 
 | 38 |  | 
 | 39 | 	movl	%eax,(%esi) | 
 | 40 |  | 
 | 41 | 	movl	%edx,%eax	/* Return the remainder in eax */ | 
 | 42 |  | 
 | 43 | 	popl	%esi | 
 | 44 |  | 
 | 45 | 	leave | 
 | 46 | 	ret | 
 | 47 |  |