| 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 |  |