1 /// @file 2 /// IPF specific AsmReadCpuid()function 3 /// 4 /// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 5 /// This program and the accompanying materials 6 /// are licensed and made available under the terms and conditions of the BSD License 7 /// which accompanies this distribution. The full text of the license may be found at 8 /// http://opensource.org/licenses/bsd-license.php. 9 /// 10 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 /// 13 /// Module Name: ReadCpuid.s 14 /// 15 /// 16 17 //--------------------------------------------------------------------------------- 18 //++ 19 // AsmReadCpuid 20 // 21 // This routine is used to Reads the current value of Processor Identifier Register (CPUID). 22 // 23 // Arguments : 24 // 25 // On Entry : The 8-bit Processor Identifier Register index to read. 26 // 27 // Return Value: The current value of Processor Identifier Register specified by Index. 28 // 29 //-- 30 //---------------------------------------------------------------------------------- 31 .text 32 .type AsmReadCpuid, @function 33 .proc AsmReadCpuid 34 .regstk 1, 0, 0, 0 35 36 AsmReadCpuid:: 37 mov r8 = cpuid[in0];; 38 br.ret.dpnt b0;; 39 .endp AsmReadCpuid 40 41
