projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 9095d37b | 3 | # Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| bb817c56 | 4 | # This program and the accompanying materials\r |
| e1f414b6 | 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 | |
| e4a34497 | 7 | # http://opensource.org/licenses/bsd-license.php.\r |
| e1f414b6 | 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 | |
| 1f86b07d | 14 | # MultU64x64.S\r |
| e1f414b6 | 15 | #\r |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # Calculate the product of a 64-bit integer and another 64-bit integer\r | |
| 19 | #\r | |
| 20 | #------------------------------------------------------------------------------\r | |
| 21 | \r | |
| 132f41f0 | 22 | ASM_GLOBAL ASM_PFX(InternalMathMultU64x64)\r |
| e1f414b6 | 23 | \r |
| 24 | #------------------------------------------------------------------------------\r | |
| 25 | # UINT64\r | |
| 26 | # EFIAPI\r | |
| 27 | # InternalMathMultU64x64 (\r | |
| 28 | # IN UINT64 Multiplicand,\r | |
| 29 | # IN UINT64 Multiplier\r | |
| 30 | # );\r | |
| 31 | #------------------------------------------------------------------------------\r | |
| 32 | ASM_PFX(InternalMathMultU64x64):\r | |
| 9095d37b LG |
33 | push %ebx\r |
| 34 | movl 8(%esp), %ebx # ebx <- M1[0..31]\r | |
| 35 | movl 16(%esp), %edx # edx <- M2[0..31]\r | |
| 36 | movl %ebx, %ecx\r | |
| 37 | movl %edx, %eax\r | |
| 38 | imull 20(%esp), %ebx # ebx <- M1[0..31] * M2[32..63]\r | |
| 39 | imull 12(%esp), %edx # edx <- M1[32..63] * M2[0..31]\r | |
| 40 | addl %edx, %ebx # carries are abandoned\r | |
| 57246fe0 | 41 | mull %ecx # edx:eax <- M1[0..31] * M2[0..31]\r |
| 9095d37b | 42 | addl %ebx, %edx # carries are abandoned\r |
| e1f414b6 | 43 | pop %ebx\r |
| 44 | ret\r |