# Copyright 2020 Google, Inc.
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Import('*')

class CpuModel(object):
    '''The CpuModel class encapsulates everything the ISA parser needs to
    know about a particular CPU model.'''

    # Dict of available CPU model objects.  Accessible as CpuModel.dict.
    dict = {}

    # Constructor.  Automatically adds models to CpuModel.dict.
    def __init__(self, name, default=False):
        self.name = name           # name of model

        # This cpu is enabled by default
        self.default = default

        # Add self to dict
        if name in CpuModel.dict:
            raise AttributeError("CpuModel '%s' already registered" % name)
        CpuModel.dict[name] = self

Export('CpuModel')

def add_cpu_models_var():
    sticky_vars.Add(ListVariable('CPU_MODELS', 'CPU models',
                sorted(n for n,m in CpuModel.dict.items() if m.default),
                sorted(CpuModel.dict.keys())))
AfterSConsopts(add_cpu_models_var)