projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 97f98500 HT |
1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 3 | # Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | # This program and the accompanying materials\r | |
| 5 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 6 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | # http://opensource.org/licenses/bsd-license.php.\r | |
| 8 | #\r | |
| 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 11 | #\r | |
| 12 | # Module Name:\r | |
| 13 | #\r | |
| 14 | # MathDivU64x64.S\r | |
| 15 | #\r | |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # 64-bit Math Worker Function.\r | |
| 19 | # Divides a 64-bit unsigned value with a 64-bit unsigned value and returns\r | |
| 20 | # a 64-bit unsigned result.\r | |
| 21 | #\r | |
| 22 | #------------------------------------------------------------------------------\r | |
| 23 | \r | |
| 24 | .686:\r | |
| 25 | .code:\r | |
| 26 | \r | |
| 27 | ASM_GLOBAL ASM_PFX(__udivdi3), ASM_PFX(DivU64x64Remainder)\r | |
| 28 | \r | |
| 29 | #------------------------------------------------------------------------------\r | |
| 30 | #\r | |
| 31 | # void __cdecl __udivdi3 (void)\r | |
| 32 | #\r | |
| 33 | #------------------------------------------------------------------------------\r | |
| 34 | ASM_PFX(__udivdi3):\r | |
| 35 | # Original local stack when calling __udivdi3\r | |
| 36 | # -----------------\r | |
| 37 | # | |\r | |
| 38 | # |---------------|\r | |
| 39 | # | |\r | |
| 40 | # |-- Divisor --|\r | |
| 41 | # | |\r | |
| 42 | # |---------------|\r | |
| 43 | # | |\r | |
| 44 | # |-- Dividend --|\r | |
| 45 | # | |\r | |
| 46 | # |---------------|\r | |
| 47 | # | ReturnAddr** |\r | |
| 48 | # ESP---->|---------------|\r | |
| 49 | #\r | |
| 50 | \r | |
| 51 | #\r | |
| 52 | # Set up the local stack for NULL Reminder pointer\r | |
| 53 | #\r | |
| 54 | xorl %eax, %eax\r | |
| 55 | push %eax\r | |
| 56 | \r | |
| 57 | #\r | |
| 58 | # Set up the local stack for Divisor parameter\r | |
| 59 | #\r | |
| 60 | movl 20(%esp), %eax\r | |
| 61 | push %eax\r | |
| 62 | movl 20(%esp), %eax\r | |
| 63 | push %eax\r | |
| 64 | \r | |
| 65 | #\r | |
| 66 | # Set up the local stack for Dividend parameter\r | |
| 67 | #\r | |
| 68 | movl 20(%esp), %eax\r | |
| 69 | push %eax\r | |
| 70 | movl 20(%esp), %eax\r | |
| 71 | push %eax\r | |
| 72 | \r | |
| 73 | #\r | |
| 74 | # Call native DivU64x64Remainder of BaseLib\r | |
| 75 | #\r | |
| 76 | jmp ASM_PFX(DivU64x64Remainder)\r | |
| 77 | \r | |
| 78 | #\r | |
| 79 | # Adjust stack\r | |
| 80 | #\r | |
| 81 | addl $20, %esp\r | |
| 82 | \r | |
| 83 | ret $16\r |