| base.isa (4004:d551cf1bba0d) | base.isa (4172:141705d83494) |
|---|---|
| 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 --- 478 unchanged lines hidden (view full) --- 487 /// Check "FP enabled" machine status bit. Called when executing any FP 488 /// instruction in full-system mode. 489 /// @retval Full-system mode: NoFault if FP is enabled, FpDisabled 490 /// if not. Non-full-system mode: always returns NoFault. 491#if FULL_SYSTEM 492 inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc) 493 { 494 Fault fault = NoFault; // dummy... this ipr access should not fault | 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 --- 478 unchanged lines hidden (view full) --- 487 /// Check "FP enabled" machine status bit. Called when executing any FP 488 /// instruction in full-system mode. 489 /// @retval Full-system mode: NoFault if FP is enabled, FpDisabled 490 /// if not. Non-full-system mode: always returns NoFault. 491#if FULL_SYSTEM 492 inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc) 493 { 494 Fault fault = NoFault; // dummy... this ipr access should not fault |
| 495 if (xc->readMiscRegWithEffect(MISCREG_PSTATE) & PSTATE::pef && 496 xc->readMiscRegWithEffect(MISCREG_FPRS) & 0x4) | 495 if (xc->readMiscReg(MISCREG_PSTATE) & PSTATE::pef && 496 xc->readMiscReg(MISCREG_FPRS) & 0x4) |
| 497 return NoFault; 498 else 499 return new FpDisabled; 500 } 501#else 502 inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc) 503 { 504 return NoFault; 505 } 506#endif 507}}; 508 509 | 497 return NoFault; 498 else 499 return new FpDisabled; 500 } 501#else 502 inline Fault checkFpEnableFault(%(CPU_exec_context)s *xc) 503 { 504 return NoFault; 505 } 506#endif 507}}; 508 509 |