1# Copyright (c) 2014, 2016 ARM Limited
2# All rights reserved
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
--- 108 unchanged lines hidden (view full) ---
117 self.template = t
118
119 def subst(self, d):
120 myDict = None
121
122 # Protect non-Python-dict substitutions (e.g. if there's a printf
123 # in the templated C++ code)
124 template = self.parser.protectNonSubstPercents(self.template)
125
126 # Build a dict ('myDict') to use for the template substitution.
127 # Start with the template namespace. Make a copy since we're
128 # going to modify it.
129 myDict = self.parser.templateMap.copy()
130
131 if isinstance(d, InstObjParams):
132 # If we're dealing with an InstObjParams object, we need
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211 myDict.update(d)
212 elif hasattr(d, '__dict__'):
213 # if the argument is an object, we use its attribute map.
214 myDict.update(d.__dict__)
215 else:
216 raise TypeError, "Template.subst() arg must be or have dictionary"
217 return template % myDict
218
219 # Convert to string.
220 def __str__(self):
221 return self.template
222
223################
224# Format object.
225#
226# A format object encapsulates an instruction format. It must provide
227# a defineInst() method that generates the code for an instruction
228# definition.
229
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275###############
276# GenCode class
277#
278# The GenCode class encapsulates generated code destined for various
279# output files. The header_output and decoder_output attributes are
280# strings containing code destined for decoder.hh and decoder.cc
281# respectively. The decode_block attribute contains code to be
282# incorporated in the decode function itself (that will also end up in
283# decoder.cc). The exec_output attribute is the string of code for the
284# exec.cc file. The has_decode_default attribute is used in the decode block
285# to allow explicit default clauses to override default default clauses.
286
287class GenCode(object):
288 # Constructor.
289 def __init__(self, parser,
290 header_output = '', decoder_output = '', exec_output = '',
291 decode_block = '', has_decode_default = False):
292 self.parser = parser
293 self.header_output = header_output
294 self.decoder_output = decoder_output
295 self.exec_output = exec_output
296 self.decode_block = decode_block
297 self.has_decode_default = has_decode_default
298
299 # Write these code chunks out to the filesystem. They will be properly
300 # interwoven by the write_top_level_files().
301 def emit(self):
302 if self.header_output:
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1448
1449#######################
1450#
1451# ISA Parser
1452# parses ISA DSL and emits C++ headers and source
1453#
1454
1455class ISAParser(Grammar):
1456 def __init__(self, output_dir):
1457 super(ISAParser, self).__init__()
1458 self.output_dir = output_dir
1459
1460 self.filename = None # for output file watermarking/scaremongering
1461
1462 # variable to hold templates
1463 self.templateMap = {}
1464
1465 # This dictionary maps format name strings to Format objects.
1466 self.formatMap = {}
1467
1468 # Track open files and, if applicable, how many chunks it has been
1469 # split into so far.
--- 127 unchanged lines hidden (view full) ---
1597 fn = 'decoder-ns.cc.inc'
1598 assert(fn in self.files)
1599 print >>f, 'namespace %s {' % self.namespace
1600 if splits > 1:
1601 print >>f, '#define __SPLIT %u' % i
1602 print >>f, '#include "%s"' % fn
1603 print >>f, '}'
1604
1605 # instruction execution
1606 splits = self.splits[self.get_file('exec')]
1607 for i in range(1, splits+1):
1608 file = 'generic_cpu_exec.cc'
1609 if splits > 1:
1610 file = extn.sub(r'_%d\1' % i, file)
1611 with self.open(file) as f:
1612 fn = 'exec-g.cc.inc'
1613 assert(fn in self.files)
1614 f.write('#include "%s"\n' % fn)
1615 f.write('#include "cpu/exec_context.hh"\n')
1616 f.write('#include "decoder.hh"\n')
1617
1618 fn = 'exec-ns.cc.inc'
1619 assert(fn in self.files)
1620 print >>f, 'namespace %s {' % self.namespace
1621 if splits > 1:
1622 print >>f, '#define __SPLIT %u' % i
1623 print >>f, '#include "%s"' % fn
1624 print >>f, '}'
1625
1626 # max_inst_regs.hh
1627 self.update('max_inst_regs.hh',
1628 '''namespace %(namespace)s {
1629 const int MaxInstSrcRegs = %(maxInstSrcRegs)d;
1630 const int MaxInstDestRegs = %(maxInstDestRegs)d;
1631 const int MaxMiscDestRegs = %(maxMiscDestRegs)d;\n}\n''' % self)
1632
1633 scaremonger_template ='''// DO NOT EDIT
--- 252 unchanged lines hidden (view full) ---
1886 self.isa_name = t[2]
1887 self.namespace = t[2] + 'Inst'
1888
1889 # Output blocks 'output <foo> {{...}}' (C++ code blocks) are copied
1890 # directly to the appropriate output section.
1891
1892 # Massage output block by substituting in template definitions and
1893 # bit operators. We handle '%'s embedded in the string that don't
1894 # indicate template substitutions by doubling them first so that the
1895 # format operation will reduce them back to single '%'s.
1896 def process_output(self, s):
1897 s = self.protectNonSubstPercents(s)
1898 return substBitOps(s % self.templateMap)
1899
1900 def p_output(self, t):
1901 'output : OUTPUT output_type CODELIT SEMI'
1902 kwargs = { t[2]+'_output' : self.process_output(t[3]) }
1903 GenCode(self, **kwargs).emit()
1904
1905 # global let blocks 'let {{...}}' (Python code blocks) are
--- 482 unchanged lines hidden (view full) ---
2388
2389 # make sure we haven't already defined this one
2390 if id in self.formatMap:
2391 error(lineno, 'format %s redefined.' % id)
2392
2393 # create new object and store in global map
2394 self.formatMap[id] = Format(id, params, code)
2395
2396 def protectNonSubstPercents(self, s):
2397 '''Protect any non-dict-substitution '%'s in a format string
2398 (i.e. those not followed by '(')'''
2399
2400 return re.sub(r'%(?!\()', '%%', s)
2401
2402 def buildOperandNameMap(self, user_dict, lineno):
2403 operand_name = {}
--- 212 unchanged lines hidden ---
2# All rights reserved
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
--- 108 unchanged lines hidden (view full) ---
117 self.template = t
118
119 def subst(self, d):
120 myDict = None
121
122 # Protect non-Python-dict substitutions (e.g. if there's a printf
123 # in the templated C++ code)
124 template = self.parser.protectNonSubstPercents(self.template)
125
126 # Build a dict ('myDict') to use for the template substitution.
127 # Start with the template namespace. Make a copy since we're
128 # going to modify it.
129 myDict = self.parser.templateMap.copy()
130
131 if isinstance(d, InstObjParams):
132 # If we're dealing with an InstObjParams object, we need
--- 78 unchanged lines hidden (view full) ---
211 myDict.update(d)
212 elif hasattr(d, '__dict__'):
213 # if the argument is an object, we use its attribute map.
214 myDict.update(d.__dict__)
215 else:
216 raise TypeError, "Template.subst() arg must be or have dictionary"
217 return template % myDict
218
219 # Convert to string.
220 def __str__(self):
221 return self.template
222
223################
224# Format object.
225#
226# A format object encapsulates an instruction format. It must provide
227# a defineInst() method that generates the code for an instruction
228# definition.
229
--- 45 unchanged lines hidden (view full) ---
275###############
276# GenCode class
277#
278# The GenCode class encapsulates generated code destined for various
279# output files. The header_output and decoder_output attributes are
280# strings containing code destined for decoder.hh and decoder.cc
281# respectively. The decode_block attribute contains code to be
282# incorporated in the decode function itself (that will also end up in
283# decoder.cc). The exec_output attribute is the string of code for the
284# exec.cc file. The has_decode_default attribute is used in the decode block
285# to allow explicit default clauses to override default default clauses.
286
287class GenCode(object):
288 # Constructor.
289 def __init__(self, parser,
290 header_output = '', decoder_output = '', exec_output = '',
291 decode_block = '', has_decode_default = False):
292 self.parser = parser
293 self.header_output = header_output
294 self.decoder_output = decoder_output
295 self.exec_output = exec_output
296 self.decode_block = decode_block
297 self.has_decode_default = has_decode_default
298
299 # Write these code chunks out to the filesystem. They will be properly
300 # interwoven by the write_top_level_files().
301 def emit(self):
302 if self.header_output:
--- 1145 unchanged lines hidden (view full) ---
1448
1449#######################
1450#
1451# ISA Parser
1452# parses ISA DSL and emits C++ headers and source
1453#
1454
1455class ISAParser(Grammar):
1456 def __init__(self, output_dir):
1457 super(ISAParser, self).__init__()
1458 self.output_dir = output_dir
1459
1460 self.filename = None # for output file watermarking/scaremongering
1461
1462 # variable to hold templates
1463 self.templateMap = {}
1464
1465 # This dictionary maps format name strings to Format objects.
1466 self.formatMap = {}
1467
1468 # Track open files and, if applicable, how many chunks it has been
1469 # split into so far.
--- 127 unchanged lines hidden (view full) ---
1597 fn = 'decoder-ns.cc.inc'
1598 assert(fn in self.files)
1599 print >>f, 'namespace %s {' % self.namespace
1600 if splits > 1:
1601 print >>f, '#define __SPLIT %u' % i
1602 print >>f, '#include "%s"' % fn
1603 print >>f, '}'
1604
1605 # instruction execution
1606 splits = self.splits[self.get_file('exec')]
1607 for i in range(1, splits+1):
1608 file = 'generic_cpu_exec.cc'
1609 if splits > 1:
1610 file = extn.sub(r'_%d\1' % i, file)
1611 with self.open(file) as f:
1612 fn = 'exec-g.cc.inc'
1613 assert(fn in self.files)
1614 f.write('#include "%s"\n' % fn)
1615 f.write('#include "cpu/exec_context.hh"\n')
1616 f.write('#include "decoder.hh"\n')
1617
1618 fn = 'exec-ns.cc.inc'
1619 assert(fn in self.files)
1620 print >>f, 'namespace %s {' % self.namespace
1621 if splits > 1:
1622 print >>f, '#define __SPLIT %u' % i
1623 print >>f, '#include "%s"' % fn
1624 print >>f, '}'
1625
1626 # max_inst_regs.hh
1627 self.update('max_inst_regs.hh',
1628 '''namespace %(namespace)s {
1629 const int MaxInstSrcRegs = %(maxInstSrcRegs)d;
1630 const int MaxInstDestRegs = %(maxInstDestRegs)d;
1631 const int MaxMiscDestRegs = %(maxMiscDestRegs)d;\n}\n''' % self)
1632
1633 scaremonger_template ='''// DO NOT EDIT
--- 252 unchanged lines hidden (view full) ---
1886 self.isa_name = t[2]
1887 self.namespace = t[2] + 'Inst'
1888
1889 # Output blocks 'output <foo> {{...}}' (C++ code blocks) are copied
1890 # directly to the appropriate output section.
1891
1892 # Massage output block by substituting in template definitions and
1893 # bit operators. We handle '%'s embedded in the string that don't
1894 # indicate template substitutions by doubling them first so that the
1895 # format operation will reduce them back to single '%'s.
1896 def process_output(self, s):
1897 s = self.protectNonSubstPercents(s)
1898 return substBitOps(s % self.templateMap)
1899
1900 def p_output(self, t):
1901 'output : OUTPUT output_type CODELIT SEMI'
1902 kwargs = { t[2]+'_output' : self.process_output(t[3]) }
1903 GenCode(self, **kwargs).emit()
1904
1905 # global let blocks 'let {{...}}' (Python code blocks) are
--- 482 unchanged lines hidden (view full) ---
2388
2389 # make sure we haven't already defined this one
2390 if id in self.formatMap:
2391 error(lineno, 'format %s redefined.' % id)
2392
2393 # create new object and store in global map
2394 self.formatMap[id] = Format(id, params, code)
2395
2396 def protectNonSubstPercents(self, s):
2397 '''Protect any non-dict-substitution '%'s in a format string
2398 (i.e. those not followed by '(')'''
2399
2400 return re.sub(r'%(?!\()', '%%', s)
2401
2402 def buildOperandNameMap(self, user_dict, lineno):
2403 operand_name = {}
--- 212 unchanged lines hidden ---