gem5/src/arch/mips/isa/operands.isa

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// -*- mode:c++ -*-
// Copyright (c) 2007 MIPS Technologies, Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met: redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer;
// redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution;
// neither the name of the copyright holders nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: Korey Sewell
// Jaidev Patwardhan
def operand_types {{
'sb' : ('signed int', 8),
'ub' : ('unsigned int', 8),
'sh' : ('signed int', 16),
'uh' : ('unsigned int', 16),
'sw' : ('signed int', 32),
'uw' : ('unsigned int', 32),
'sd' : ('signed int', 64),
'ud' : ('unsigned int', 64),
'sf' : ('float', 32),
'df' : ('float', 64),
}};
def operands {{
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#General Purpose Integer Reg Operands
'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1),
'Rs': ('IntReg', 'uw', 'RS', 'IsInteger', 2),
'Rt': ('IntReg', 'uw', 'RT', 'IsInteger', 3),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Immediate Value operand
'IntImm': ('IntReg', 'uw', 'INTIMM', 'IsInteger', 3),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Operands used for Link or Syscall Insts
'R31': ('IntReg', 'uw','31','IsInteger', 4),
'R2': ('IntReg', 'uw','2', 'IsInteger', 5),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Special Integer Reg operands
'LO0': ('IntReg', 'uw','MipsISA::LO', 'IsInteger', 6),
'HI0': ('IntReg', 'uw','MipsISA::HI', 'IsInteger', 7),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Bitfield-dependent HI/LO Register Access
'LO_RD_SEL': ('IntReg','uw','MipsISA::DSPLo0 + ACDST*3', None, 6),
'HI_RD_SEL': ('IntReg','uw','MipsISA::DSPHi0 + ACDST*3', None, 7),
'LO_RS_SEL': ('IntReg','uw','MipsISA::DSPLo0 + ACSRC*3', None, 6),
'HI_RS_SEL': ('IntReg','uw','MipsISA::DSPHi0 + ACSRC*3', None, 7),
#DSP Special Purpose Integer Operands
'DSPControl': ('IntReg', 'uw', 'MipsISA::DSPControl', None, 8),
'DSPLo0': ('IntReg', 'uw', 'MipsISA::LO', None, 1),
'DSPHi0': ('IntReg', 'uw', 'MipsISA::HI', None, 1),
'DSPACX0': ('IntReg', 'uw', 'MipsISA::DSPACX0', None, 1),
'DSPLo1': ('IntReg', 'uw', 'MipsISA::DSPLo1', None, 1),
'DSPHi1': ('IntReg', 'uw', 'MipsISA::DSPHi1', None, 1),
'DSPACX1': ('IntReg', 'uw', 'MipsISA::DSPACX1', None, 1),
'DSPLo2': ('IntReg', 'uw', 'MipsISA::DSPLo2', None, 1),
'DSPHi2': ('IntReg', 'uw', 'MipsISA::DSPHi2', None, 1),
'DSPACX2': ('IntReg', 'uw', 'MipsISA::DSPACX2', None, 1),
'DSPLo3': ('IntReg', 'uw', 'MipsISA::DSPLo3', None, 1),
'DSPHi3': ('IntReg', 'uw', 'MipsISA::DSPHi3', None, 1),
'DSPACX3': ('IntReg', 'uw', 'MipsISA::DSPACX3', None, 1),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Floating Point Reg Operands
'Fd': ('FloatReg', 'sf', 'FD', 'IsFloating', 1),
'Fs': ('FloatReg', 'sf', 'FS', 'IsFloating', 2),
'Ft': ('FloatReg', 'sf', 'FT', 'IsFloating', 3),
'Fr': ('FloatReg', 'sf', 'FR', 'IsFloating', 3),
#Special Purpose Floating Point Control Reg Operands
'FIR': ('FloatReg', 'uw', 'MipsISA::FIR', 'IsFloating', 1),
'FCCR': ('FloatReg', 'uw', 'MipsISA::FCCR', 'IsFloating', 2),
'FEXR': ('FloatReg', 'uw', 'MipsISA::FEXR', 'IsFloating', 3),
'FENR': ('FloatReg', 'uw', 'MipsISA::FENR', 'IsFloating', 3),
'FCSR': ('FloatReg', 'uw', 'MipsISA::FCSR', 'IsFloating', 3),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Operands For Paired Singles FP Operations
'Fd1': ('FloatReg', 'sf', 'FD', 'IsFloating', 4),
'Fd2': ('FloatReg', 'sf', 'FD+1', 'IsFloating', 4),
'Fs1': ('FloatReg', 'sf', 'FS', 'IsFloating', 5),
'Fs2': ('FloatReg', 'sf', 'FS+1', 'IsFloating', 5),
'Ft1': ('FloatReg', 'sf', 'FT', 'IsFloating', 6),
'Ft2': ('FloatReg', 'sf', 'FT+1', 'IsFloating', 6),
'Fr1': ('FloatReg', 'sf', 'FR', 'IsFloating', 7),
'Fr2': ('FloatReg', 'sf', 'FR+1', 'IsFloating', 7),
#Status Control Reg
'Status': ('ControlReg', 'uw', 'MipsISA::Status', None, 1),
#LL Flag
'LLFlag': ('ControlReg', 'uw', 'MipsISA::LLFlag', None, 1),
# Index Register
'Index':('ControlReg','uw','MipsISA::Index',None,1),
'CP0_RD_SEL': ('ControlReg', 'uw', '(RD << 3 | SEL)', None, 1),
#MT Control Regs
'MVPConf0': ('ControlReg', 'uw', 'MipsISA::MVPConf0', None, 1),
'MVPControl': ('ControlReg', 'uw', 'MipsISA::MVPControl', None, 1),
'TCBind': ('ControlReg', 'uw', 'MipsISA::TCBind', None, 1),
'TCStatus': ('ControlReg', 'uw', 'MipsISA::TCStatus', None, 1),
'TCRestart': ('ControlReg', 'uw', 'MipsISA::TCRestart', None, 1),
'VPEConf0': ('ControlReg', 'uw', 'MipsISA::VPEConf0', None, 1),
'VPEControl': ('ControlReg', 'uw', 'MipsISA::VPEControl', None, 1),
'YQMask': ('ControlReg', 'uw', 'MipsISA::YQMask', None, 1),
#CP0 Control Regs
'EntryHi': ('ControlReg','uw', 'MipsISA::EntryHi',None,1),
'EntryLo0': ('ControlReg','uw', 'MipsISA::EntryLo0',None,1),
'EntryLo1': ('ControlReg','uw', 'MipsISA::EntryLo1',None,1),
'PageMask': ('ControlReg','uw', 'MipsISA::PageMask',None,1),
'Random': ('ControlReg','uw', 'MipsISA::CP0_Random',None,1),
'ErrorEPC': ('ControlReg','uw', 'MipsISA::ErrorEPC',None,1),
'EPC': ('ControlReg','uw', 'MipsISA::EPC',None,1),
'DEPC': ('ControlReg','uw', 'MipsISA::DEPC',None,1),
'SRSCtl': ('ControlReg','uw', 'MipsISA::SRSCtl',None,1),
'Config': ('ControlReg','uw', 'MipsISA::Config',None,1),
'Config3': ('ControlReg','uw', 'MipsISA::Config3',None,1),
'Config1': ('ControlReg','uw', 'MipsISA::Config1',None,1),
'Config2': ('ControlReg','uw', 'MipsISA::Config2',None,1),
'PageGrain': ('ControlReg','uw', 'MipsISA::PageGrain',None,1),
# named bitfields of Control Regs
'Status_IE': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_ERL': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_EXL': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_BEV': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_CU3': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_CU2': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_CU1': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'Status_CU0': ('ControlBitfield', 'uw', 'MipsISA::Status', None, 1),
'SRSCtl_HSS': ('ControlBitfield', 'uw', 'MipsISA::SRSCtl', None, 4),
'SRSCtl_PSS': ('ControlBitfield', 'uw', 'MipsISA::SRSCtl', None, 4),
'SRSCtl_CSS': ('ControlBitfield', 'uw', 'MipsISA::SRSCtl', None, 4),
'Config_AR': ('ControlBitfield', 'uw', 'MipsISA::Config', None, 3),
'Config_MT': ('ControlBitfield', 'uw', 'MipsISA::Config', None, 1),
'Config1_CA': ('ControlBitfield', 'uw', 'MipsISA::Config1', None, 1),
'Config3_SP': ('ControlBitfield', 'uw', 'MipsISA::Config3', None, 1),
'PageGrain_ESP': ('ControlBitfield', 'uw', 'MipsISA::PageGrain', None, 1),
'Cause_EXCCODE': ('ControlBitfield', 'uw', 'MipsISA::Cause', None, 4),
'Cause_TI': ('ControlBitfield', 'uw', 'MipsISA::Cause', None, 4),
'IntCtl_IPTI': ('ControlBitfield', 'uw', 'MipsISA::IntCtl', None, 4),
'EntryHi_ASID': ('ControlBitfield', 'uw', 'MipsISA::EntryHi', None, 1),
'EntryLo0_PFN': ('ControlBitfield', 'uw', 'MipsISA::EntryLo0', None, 1),
'EntryLo0_C': ('ControlBitfield', 'uw', 'MipsISA::EntryLo0', None, 3),
'EntryLo0_D': ('ControlBitfield', 'uw', 'MipsISA::EntryLo0', None, 1),
'EntryLo0_V': ('ControlBitfield', 'uw', 'MipsISA::EntryLo0', None, 1),
'EntryLo0_G': ('ControlBitfield', 'uw', 'MipsISA::EntryLo0', None, 1),
'EntryLo1_PFN': ('ControlBitfield', 'uw', 'MipsISA::EntryLo1', None, 1),
'EntryLo1_C': ('ControlBitfield', 'uw', 'MipsISA::EntryLo1', None, 3),
'EntryLo1_D': ('ControlBitfield', 'uw', 'MipsISA::EntryLo1', None, 1),
'EntryLo1_V': ('ControlBitfield', 'uw', 'MipsISA::EntryLo1', None, 1),
'EntryLo1_G': ('ControlBitfield', 'uw', 'MipsISA::EntryLo1', None, 1),
# named bitfields of Debug Regs
'Debug_DM': ('ControlBitfield', 'uw', 'MipsISA::Debug', None, 1),
'Debug_IEXI': ('ControlBitfield', 'uw', 'MipsISA::Debug', None, 1),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Memory Operand
Finally MIPS does hello world! arch/mips/isa/bitfields.isa: add RS_SRL bitfield ...these must be set to 0 for a SRL instruction arch/mips/isa/decoder.isa: Make unimplemented instructions Fail instead of just Warn Edits to SRA & SRAV instructions Implement CFC1 instructions Unaligned Memory Access Support (Maybe Not fully functional yet) Enforce a more strict decode policy (in terms of different bitfields set to 0 on certain instructions) arch/mips/isa/formats/branch.isa: Fix disassembly arch/mips/isa/formats/int.isa: Add sign extend Immediate and zero extend Immediate to Int class. Probably a bit unnecessary in the long run since these manipulations could be done in the actually instruction instead of keep a int value arch/mips/isa/formats/mem.isa: Comment/Remove out split-memory access code... revisit this after SimpleCPU works arch/mips/isa/formats/unimp.isa: Add inst2string function to Unimplemented panic. PRints out the instruction binary to help in debuggin arch/mips/isa/formats/unknown.isa: define inst2string function , use in unknown disassembly and panic function arch/mips/isa/operands.isa: Make "Mem" default to a unsigned word since this is MIPS32 arch/mips/isa_traits.hh: change return values to 32 instead of 64 arch/mips/linux_process.cc: assign some syscalls to the right functions cpu/static_inst.hh: more debug functions for MIPS (these will be move to the mips directory soon) mem/page_table.cc: mem/page_table.hh: toward a better implementation for unaligned memory access mem/request.hh: NO ALIGN FAULT flag added to support unaligned memory access sim/syscall_emul.cc: additional SyscallVerbose comments --HG-- extra : convert_revision : 1987d80c9f4ede507f1f0148435e0bee97d2428c
2006-04-10 18:23:17 +02:00
'Mem': ('Mem', 'uw', None, ('IsMemRef', 'IsLoad', 'IsStore'), 4),
FP programs are back to running... Condition Codes can be read and set... Special Regs (Hi,Lo,FCSR) are now added to the operands for use in decoder.isa. Now it's back to just debugging execution of code for the release (those unaligned memory access instruction pairs are still quite the pain i might add) arch/mips/isa_traits.hh: declare functions for .cc file arch/mips/isa_traits.cc: delete unnecessary overloaded functions implement condition code functions implement round function arch/mips/isa/base.isa: remove R31 constant... define in the operands.isa file instead arch/mips/isa/decoder.isa: wholesale changes once again to FP. Now the FP Condition Codes are implemented and the FP programs can run and complete to finish. Use isnan() instead of my unorderedFP() function Also, we now access special regs such as HI,LO,FCSR,etc. just like we do any other reg. operand arch/mips/isa/operands.isa: add more operands for special control regs in int and FP regfiles arch/mips/isa/formats/branch.isa: use R31 instead of r31 arch/mips/isa/formats/fp.isa: use MakeCCVector to set Condition Codes in FCSR arch/mips/regfile/float_regfile.hh: treat control regs like any other reg. Just Index them after the regular architectural registers arch/mips/regfile/int_regfile.hh: treat hi,lo as regular int. regs w/special indexing arch/mips/regfile/regfile.hh: no longer need for special register accesses with their own function. --HG-- rename : arch/mips/regfile.hh => arch/mips/regfile/regfile.hh extra : convert_revision : 5d2f8fdb59606de2b2e9db3e0a085240561e479e
2006-05-12 08:57:32 +02:00
#Program Counter Operands
'NPC': ('NPC', 'uw', None, 'IsControl', 4),
'NNPC':('NNPC', 'uw', None, 'IsControl', 4)
}};