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 | |