| ///*++ | |
| // | |
| // Copyright (c) 2006, Intel Corporation | |
| // All rights reserved. This program and the accompanying materials | |
| // are licensed and made available under the terms and conditions of the BSD License | |
| // which accompanies this distribution. The full text of the license may be found at | |
| // http://opensource.org/licenses/bsd-license.php | |
| // | |
| // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| // | |
| //Module Name: | |
| // | |
| // IpfMul.s | |
| // | |
| //Abstract: | |
| // | |
| // Low level routines for IPF multiply support | |
| // | |
| //--*/ | |
| .file "IpfMul.s" | |
| .section .text | |
| .proc MulS64x64# | |
| .align 32 | |
| .global MulS64x64# | |
| .align 32 | |
| ///*++ | |
| // | |
| //Routine Description: | |
| // | |
| // Multiply two 64-bit signed numbers. | |
| // | |
| // | |
| //Arguments: | |
| // | |
| // INT64 | |
| // MulS64x64 ( | |
| // IN INT64 Value1, | |
| // IN INT64 Value2, | |
| // OUT INT64 *ResultHigh); | |
| // | |
| //Returns: | |
| // | |
| // 64-bit signed result | |
| // | |
| //--*/ | |
| MulS64x64: | |
| // signed 64x64->128-bit multiply | |
| // A in r32, B in r33, Q_hi stored in [r34], Q_lo returned in r8 | |
| { .mfi | |
| alloc r31=ar.pfs,3,0,0,0 // r32-r34 | |
| nop.f 0 | |
| nop.i 0;; | |
| } | |
| {.mmi | |
| setf.sig f6=r32 | |
| setf.sig f7=r33 | |
| nop.i 0;; | |
| } | |
| {.mfi | |
| nop.m 0 | |
| xma.h f8=f6,f7,f0 | |
| nop.i 0 | |
| } | |
| {.mfi | |
| nop.m 0 | |
| xma.l f6=f6,f7,f0 | |
| nop.i 0;; | |
| } | |
| {.mmb | |
| stf8 [r34]=f8 | |
| getf.sig r8=f6 | |
| br.ret.sptk b0;; | |
| } | |
| .endp MulS64x64 | |
| .proc MulU64x64# | |
| .align 32 | |
| .global MulU64x64# | |
| .align 32 | |
| ///*++ | |
| // | |
| //Routine Description: | |
| // | |
| // Multiply two 64-bit unsigned numbers. | |
| // | |
| // | |
| //Arguments: | |
| // | |
| // UINT64 | |
| // MulU64x64 ( | |
| // IN UINT64 Value1, | |
| // IN UINT64 Value2, | |
| // OUT UINT64 *ResultHigh); | |
| // | |
| //Returns: | |
| // | |
| // 64-bit unsigned result | |
| // | |
| //--*/ | |
| MulU64x64: | |
| // A in r32, B in r33, Q_hi stored in [r34], Q_lo returned in r8 | |
| { .mfi | |
| alloc r31=ar.pfs,3,0,0,0 // r32-r34 | |
| nop.f 0 | |
| nop.i 0;; | |
| } | |
| {.mmi | |
| setf.sig f6=r32 | |
| setf.sig f7=r33 | |
| nop.i 0;; | |
| } | |
| {.mfi | |
| nop.m 0 | |
| xma.hu f8=f6,f7,f0 | |
| nop.i 0 | |
| } | |
| {.mfi | |
| nop.m 0 | |
| xma.l f6=f6,f7,f0 | |
| nop.i 0;; | |
| } | |
| {.mmb | |
| stf8 [r34]=f8 | |
| getf.sig r8=f6 | |
| br.ret.sptk b0;; | |
| } | |
| .endp MulU64x64 | |