base.isa (7741:340b6f01d69b) | base.isa (7799:5d0f62927d75) |
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1// Copyright (c) 2006-2007 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright --- 553 unchanged lines hidden (view full) --- 562 /// Check "FP enabled" machine status bit. Called when executing any FP 563 /// instruction in full-system mode. 564 /// @retval Full-system mode: NoFault if FP is enabled, FpDisabled 565 /// if not. Non-full-system mode: always returns NoFault. 566#if FULL_SYSTEM 567 inline Fault 568 checkFpEnableFault(%(CPU_exec_context)s *xc) 569 { | 1// Copyright (c) 2006-2007 The Regents of The University of Michigan 2// All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions are 6// met: redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer; 8// redistributions in binary form must reproduce the above copyright --- 553 unchanged lines hidden (view full) --- 562 /// Check "FP enabled" machine status bit. Called when executing any FP 563 /// instruction in full-system mode. 564 /// @retval Full-system mode: NoFault if FP is enabled, FpDisabled 565 /// if not. Non-full-system mode: always returns NoFault. 566#if FULL_SYSTEM 567 inline Fault 568 checkFpEnableFault(%(CPU_exec_context)s *xc) 569 { |
570 Fault fault = NoFault; // dummy... this ipr access should not fault | 570 Fault fault = NoFault; // dummy... this ipr access should not fault |
571 if (xc->readMiscReg(MISCREG_PSTATE) & PSTATE::pef && 572 xc->readMiscReg(MISCREG_FPRS) & 0x4) { 573 return NoFault; 574 } else { 575 return new FpDisabled; 576 } 577 } 578#else 579 inline Fault 580 checkFpEnableFault(%(CPU_exec_context)s *xc) 581 { 582 return NoFault; 583 } 584#endif 585}}; 586 587 | 571 if (xc->readMiscReg(MISCREG_PSTATE) & PSTATE::pef && 572 xc->readMiscReg(MISCREG_FPRS) & 0x4) { 573 return NoFault; 574 } else { 575 return new FpDisabled; 576 } 577 } 578#else 579 inline Fault 580 checkFpEnableFault(%(CPU_exec_context)s *xc) 581 { 582 return NoFault; 583 } 584#endif 585}}; 586 587 |