Add support for alias registers
This required some fundamental changes. One of them is that YAML fields are now processed in a more systematic way in which all fields are passed via a dictionary. That way, some of the fields are not bound to the original object anymore.
This commit is contained in:
parent
9deb28ce4e
commit
b2c756af41
GPG Key ID:
186A8AD440942BAF
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@ -23,10 +23,6 @@ class AddrMap(Component):
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def __init__(self, obj: node.RootNode, config: dict):
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super().__init__(obj, config)
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# Create logger object
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self.create_logger(self.path, config)
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self.logger.debug('Starting to process addrmap')
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# Check if global resets are defined
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glbl_settings = dict()
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@ -44,7 +40,7 @@ class AddrMap(Component):
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# We need a dictionary since it might be required to access the objects later
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# by name (for example, in case of aliases)
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self.registers = dict()
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self.regfiles = []
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self.regfiles = dict()
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# Traverse through children
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for child in obj.children():
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@ -54,28 +50,27 @@ class AddrMap(Component):
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self.logger.info('Found hierarchical addrmap. Entering it...')
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self.logger.error('Child addrmaps are not implemented yet!')
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elif isinstance(child, node.RegfileNode):
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self.regfiles.append(RegFile(child, [], [], config, glbl_settings))
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self.regfiles[child.inst_name] = \
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RegFile(child, [], [], config, glbl_settings)
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elif isinstance(child, node.RegNode):
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if child.inst.is_alias:
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# If the node we found is an alias, we shall not create a
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# new register. Rather, we bury up the old register and add
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# additional properties
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self.logger.error('Alias registers are not implemented yet!')
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self.registers[child.inst.alias_primary_inst.inst_name]\
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.add_alias(child)
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else:
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self.registers[child.inst_name] = \
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Register(child, [], [], config, glbl_settings)
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# Add registers to children. This must be done in a last step
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# to account for all possible alias combinations
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self.children = [
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*self.regfiles,
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*[x for x in self.registers.values()]
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]
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self.children = {**self.regfiles, **self.registers}
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self.logger.info("Done generating all child-regfiles/registers")
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# Add bus widget ports
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self.__add_bus_widget_ports()
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widget_rtl = self.__get_widget_ports_rtl()
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# Start assembling addrmap module
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self.logger.info("Starting to assemble input & output ports")
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@ -159,7 +154,7 @@ class AddrMap(Component):
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self.__add_signal_instantiation()
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# Add bus widget RTL
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self.__add_bus_widget_instantiation()
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self.rtl_header.append(widget_rtl)
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# Append genvars
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self.__append_genvars()
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@ -189,16 +184,15 @@ class AddrMap(Component):
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''
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]
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def __add_bus_widget_ports(self):
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def __get_widget_ports_rtl(self):
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self.widget_templ_dict = yaml.load(
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pkg_resources.read_text(widgets, '{}.yaml'.format(self.config['bus'])),
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Loader=yaml.FullLoader)
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self.yaml_signals_to_list(self.widget_templ_dict['module_instantiation'])
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def __add_bus_widget_instantiation(self):
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self.rtl_header.append(
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self.widget_templ_dict['module_instantiation']['rtl'])
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return self.process_yaml(
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self.widget_templ_dict['module_instantiation'],
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# TODO: Add widths
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)
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def __append_genvars(self):
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@ -16,7 +16,7 @@ class Component():
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def __init__(self, obj, config):
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self.rtl_header = []
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self.rtl_footer = []
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self.children = []
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self.children = dict()
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self.typedefs = dict()
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self.ports = dict()
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self.resets = set()
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@ -39,7 +39,9 @@ class Component():
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# Create logger object
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self.create_logger("{}.{}".format(self.owning_addrmap, self.path), config)
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self.logger.debug('Starting to process register "{}"'.format(obj.inst_name))
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self.logger.debug('Starting to process {} "{}"'.format(
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self.__class__.__name__,
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obj.inst_name))
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def create_logger(self, name: str, config: dict):
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self.logger = create_logger(
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@ -52,7 +54,7 @@ class Component():
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def get_resets(self):
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self.logger.debug("Return reset list")
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for x in self.children:
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for x in self.children.values():
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self.resets |= x.get_resets()
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return self.resets
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@ -60,7 +62,7 @@ class Component():
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def get_ports(self, port_type: str):
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self.logger.debug("Return port list")
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for x in self.children:
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for x in self.children.values():
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self.ports[port_type] |= x.get_ports(port_type)
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return self.ports[port_type]
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@ -71,14 +73,14 @@ class Component():
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self.total_array_dimensions))
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return max([
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self.total_dimensions,
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*[x.get_max_dim_depth() for x in self.children]
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*[x.get_max_dim_depth() for x in self.children.values()]
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])
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def get_signals(self, no_children = False):
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self.logger.debug("Return signal list")
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if not no_children:
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for x in self.children:
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for x in self.children.values():
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self.signals |= x.get_signals()
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return self.signals
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@ -86,7 +88,7 @@ class Component():
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def get_typedefs(self):
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self.logger.debug("Return typedef list")
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for x in self.children:
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for x in self.children.values():
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self.typedefs |= x.get_typedefs()
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return self.typedefs
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@ -97,8 +99,16 @@ class Component():
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# Loop through children and append RTL
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rtl_children = []
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for child in self.children:
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rtl_children.append(child.get_rtl())
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for x in self.children.values():
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# In case of fields, the RTL must first be generated.
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# Reason is that we only know at the very end whether
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# all alias registers are processed for fields
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try:
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x.create_rtl()
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except:
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pass
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rtl_children.append(x.get_rtl())
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# Concatenate header, main, and footer
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rtl = [*self.rtl_header, *rtl_children, *self.rtl_footer]
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@ -204,31 +214,34 @@ class Component():
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return ''.join(name)
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def yaml_signals_to_list(self, yaml_obj):
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def process_yaml(self, yaml_obj, values: dict = {}):
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try:
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for x in yaml_obj['signals']:
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self.signals[x['name'].format(path = self.path_underscored)] =\
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(x['signal_type'].format(field_type = self.field_type),
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self.signals[x['name'].format(**values)] =\
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(x['signal_type'].format(**values),
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self.total_array_dimensions)
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except (TypeError, KeyError):
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pass
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try:
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for x in yaml_obj['input_ports']:
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self.ports['input'][x['name'].format(path = self.path_underscored)] =\
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(x['signal_type'].format(field_type = self.field_type),
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self.ports['input'][x['name'].format(**values)] =\
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(x['signal_type'].format(**values),
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self.total_array_dimensions)
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except (TypeError, KeyError):
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pass
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try:
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for x in yaml_obj['output_ports']:
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self.ports['output'][x['name'].format(path = self.path_underscored)] =\
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(x['signal_type'].format(field_type = self.field_type),
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self.ports['output'][x['name'].format(**values)] =\
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(x['signal_type'].format(**values),
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self.total_array_dimensions)
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except (TypeError, KeyError):
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pass
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# Return RTL with values
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return yaml_obj['rtl'].format(**values)
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@staticmethod
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def process_reset_signal(reset_signal):
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rst = dict()
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@ -256,9 +269,16 @@ class Component():
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return rst
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def create_underscored_path(self):
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self.owning_addrmap = self.obj.owning_addrmap.inst_name
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self.full_path = Component.split_dimensions(self.obj.get_path())[0]
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self.path = self.full_path\
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.replace('{}.'.format(self.owning_addrmap), '')
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self.owning_addrmap, self.full_path, self.path, self.path_underscored =\
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Component.create_underscored_path_static(self.obj)
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self.path_underscored = self.path.replace('.', '__')
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@staticmethod
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def create_underscored_path_static(obj):
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owning_addrmap = obj.owning_addrmap.inst_name
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full_path = Component.split_dimensions(obj.get_path())[0]
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path = full_path\
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.replace('{}.'.format(owning_addrmap), '')
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path_underscored = path.replace('.', '__')
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return (owning_addrmap, full_path, path, path_underscored)
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@ -39,12 +39,266 @@ class Field(Component):
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# Print a summary
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self.rtl_header.append(self.summary())
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# Generate RTL
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# HW Access can be handled in __init__ function but SW access
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# must be handled in a seperate method that can be called
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# seperately in case of alias registers
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self.__add_always_ff()
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self.__add_access_rtl()
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self.__add_hw_access()
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self.__add_combo()
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self.__add_ports()
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self.__prepend_signal_declarations()
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self.add_sw_access(obj)
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def add_sw_access(self, obj, alias = False):
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access_rtl = dict()
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if alias:
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owning_addrmap, full_path, path, path_underscored =\
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Field.create_underscored_path_static(obj)
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else:
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owning_addrmap, full_path, path, path_underscored =\
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self.owning_addrmap, self.full_path, self.path, self.path_underscored
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path_wo_field = '__'.join(path.split('.', -1)[0:-1])
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# Define software access (if applicable)
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access_rtl['sw_write'] = ([], False)
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if obj.get_property('sw') in (AccessType.rw, AccessType.w):
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swwe = obj.get_property('swwe')
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swwel = obj.get_property('swwel')
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if isinstance(swwe, (FieldNode, SignalNode)):
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict['sw_access_field_swwe'],
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{'path_wo_field': path_wo_field,
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'genvars': self.genvars_str,
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'swwe': self.get_signal_name(swwe),
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'field_type': self.field_type}
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)
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)
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elif isinstance(swwel, (FieldNode, SignalNode)):
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict['sw_access_field_swwel'],
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{'path_wo_field': path_wo_field,
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'genvars': self.genvars_str,
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'swwel': self.get_signal_name(swwel),
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'field_type': self.field_type}
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)
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)
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else:
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict['sw_access_field'],
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{'path_wo_field': path_wo_field,
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'genvars': self.genvars_str,
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'field_type': self.field_type}
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)
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)
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# Check if an onwrite property is set
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onwrite = obj.get_property('onwrite')
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if onwrite:
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if onwrite == OnWriteType.wuser:
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self.logger.warning("The OnReadType.wuser is not yet supported!")
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elif onwrite in (OnWriteType.wclr, OnWriteType.wset):
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict[str(onwrite)],
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{'path': path_underscored,
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'genvars': self.genvars_str,
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'width': obj.width,
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'path_wo_field': path_wo_field,
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'field_type': self.field_type}
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)
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)
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else:
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# If field spans multiple bytes, every byte shall have a seperate enable!
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for j, i in enumerate(range(self.lsbyte, self.msbyte+1)):
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict[str(onwrite)],
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{'path': path_underscored,
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'genvars': self.genvars_str,
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'i': i,
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'width': obj.width,
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'msb_bus': str(8*(i+1)-1 if i != self.msbyte else obj.msb),
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'bus_w': str(8 if i != self.msbyte else obj.width-(8*j)),
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'msb_field': str(8*(j+1)-1 if i != self.msbyte else obj.width-1),
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'field_w': str(8 if i != self.msbyte else obj.width-(8*j)),
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'field_type': self.field_type}
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)
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)
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else:
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# Normal write
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# If field spans multiple bytes, every byte shall have a seperate enable!
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for j, i in enumerate(range(self.lsbyte, self.msbyte+1)):
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access_rtl['sw_write'][0].append(
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self.process_yaml(
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Field.templ_dict['sw_access_byte'],
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{'path': self.path_underscored,
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'genvars': self.genvars_str,
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'i': i,
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'msb_bus': str(8*(i+1)-1 if i != self.msbyte else obj.msb),
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'bus_w': str(8 if i != self.msbyte else obj.width-(8*j)),
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'msb_field': str(8*(j+1)-1 if i != self.msbyte else obj.width-1),
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'field_w': str(8 if i != self.msbyte else obj.width-(8*j)),
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'field_type': self.field_type}
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)
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)
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access_rtl['sw_write'][0].append("end")
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onread = obj.get_property('onread')
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access_rtl['sw_read'] = ([], False)
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if obj.get_property('sw') in (AccessType.rw, AccessType.r) and onread:
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if onread == OnReadType.ruser:
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self.logger.warning("The OnReadType.ruser is not yet supported!")
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else:
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access_rtl['sw_read'][0].append(
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self.process_yaml(
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Field.templ_dict[str(onread)],
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{'width': obj.width,
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'path': path_underscored,
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'genvars': self.genvars_str,
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'path_wo_field': path_wo_field}
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)
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)
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# Add singlepulse property
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# Property cannot be overwritten by alias
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if obj.get_property('singlepulse'):
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self.access_rtl['singlepulse'] = ([
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self.process_yaml(
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Field.templ_dict['singlepulse'],
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{'path': self.path_underscored,
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'genvars': self.genvars_str}
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)
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],
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True)
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else:
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self.access_rtl['singlepulse'] = ([], False)
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# Add to global dictionary
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try:
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# Alias, so add 'else'
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self.access_rtl['sw_read'] = \
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[*self.access_rtl['sw_read'], access_rtl['sw_read']]
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self.access_rtl['sw_write'] = \
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[*self.access_rtl['sw_write'], access_rtl['sw_write']]
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except KeyError:
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self.access_rtl['sw_read'] = [access_rtl['sw_read']]
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self.access_rtl['sw_write'] = [access_rtl['sw_write']]
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def __add_hw_access(self):
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# Define hardware access (if applicable)
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if self.obj.get_property('hw') in (AccessType.rw, AccessType.w):
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write_condition = 'hw_access_we_wel' if self.we_or_wel else 'hw_access_no_we_wel'
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# if-line of hw-access
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self.access_rtl['hw_write'] = ([
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self.process_yaml(
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Field.templ_dict[write_condition],
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{'negl': '!' if self.obj.get_property('wel') else '',
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'path': self.path_underscored,
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'genvars': self.genvars_str,
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'field_type': self.field_type}
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)
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],
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write_condition == 'hw_access_no_we_wel') # Abort if no condition is set
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# Actual assignment of register
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self.access_rtl['hw_write'][0].append(
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self.process_yaml(
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Field.templ_dict['hw_access_field'],
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{'path': self.path_underscored,
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'genvars': self.genvars_str,
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'field_type': self.field_type}
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)
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)
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else:
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self.access_rtl['hw_write'] = ([], False)
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# Hookup flop to output port in case register is readable by hardware
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if self.obj.get_property('hw') in (AccessType.rw, AccessType.r):
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# Connect flops to output port
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self.rtl_footer.append(
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self.process_yaml(
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Field.templ_dict['out_port_assign'],
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{'genvars': self.genvars_str,
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'path': self.path_underscored,
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'field_type': self.field_type}
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)
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)
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def create_rtl(self):
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# Not all access types are required and the order might differ
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# depending on what types are defined and what precedence is
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||||
# set. Therefore, first add all RTL into a dictionary and
|
||||
# later place it in the right order.
|
||||
#
|
||||
# Check if hardware has precedence (default `precedence = sw`)
|
||||
if self.obj.get_property('precedence') == PrecedenceType.sw:
|
||||
order_list = [
|
||||
'sw_write',
|
||||
'sw_read',
|
||||
'hw_write',
|
||||
'singlepulse'
|
||||
]
|
||||
else:
|
||||
order_list = [
|
||||
'hw_write',
|
||||
'sw_write',
|
||||
'sw_read',
|
||||
'singlepulse'
|
||||
]
|
||||
|
||||
# Add appropriate else
|
||||
order_list_rtl = []
|
||||
abort_set = False
|
||||
|
||||
for i in order_list:
|
||||
# Still a loop and not a list comprehension since this might
|
||||
# get longer in the future and thus become unreadable
|
||||
|
||||
# First check if we need to break or continue the loop
|
||||
if abort_set:
|
||||
break
|
||||
|
||||
# Check if there is a list that shall be unlooped
|
||||
if isinstance(self.access_rtl[i], tuple):
|
||||
access_rtl = [self.access_rtl[i]]
|
||||
else:
|
||||
access_rtl = self.access_rtl[i]
|
||||
|
||||
for unpacked_access_rtl in access_rtl:
|
||||
if len(unpacked_access_rtl[0]) == 0:
|
||||
continue
|
||||
|
||||
order_list_rtl = [*order_list_rtl, *unpacked_access_rtl[0]]
|
||||
order_list_rtl.append("else")
|
||||
|
||||
# If the access_rtl entry has an abortion entry, do not print
|
||||
# any further branches of the conditional block
|
||||
abort_set = unpacked_access_rtl[1]
|
||||
|
||||
# Remove last else
|
||||
order_list_rtl.pop()
|
||||
|
||||
# Chain access RTL to the rest of the RTL
|
||||
self.rtl_header = [*self.rtl_header, *order_list_rtl]
|
||||
|
||||
self.rtl_header.append(
|
||||
self.process_yaml(
|
||||
Field.templ_dict['end_field_ff'],
|
||||
{'path': self.path_underscored}
|
||||
)
|
||||
)
|
||||
|
||||
|
||||
def __add_combo(self):
|
||||
operations = []
|
||||
|
|
@ -56,20 +310,24 @@ class Field(Component):
|
|||
operations.append(['^', 'assign_xored_operation'])
|
||||
|
||||
if len(operations) > 0:
|
||||
self.rtl_header.append(
|
||||
Field.templ_dict['combo_operation_comment']['rtl'].format(
|
||||
path = self.path_underscored))
|
||||
self.rtl_footer.append(
|
||||
self.process_yaml(
|
||||
Field.templ_dict['combo_operation_comment'],
|
||||
{'path': self.path_underscored}
|
||||
)
|
||||
)
|
||||
|
||||
self.rtl_header = [
|
||||
*self.rtl_header,
|
||||
*[Field.templ_dict[i[1]]['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str,
|
||||
op_verilog = i[0]) for i in operations]
|
||||
self.rtl_footer = [
|
||||
*self.rtl_footer,
|
||||
*[self.process_yaml(
|
||||
Field.templ_dict[i[1]],
|
||||
{'path': self.path_underscored,
|
||||
'genvars': self.genvars_str,
|
||||
'op_verilog': i[0],
|
||||
'field_type': self.field_type}
|
||||
) for i in operations]
|
||||
]
|
||||
|
||||
[self.yaml_signals_to_list(Field.templ_dict[i[1]]) for i in operations]
|
||||
|
||||
|
||||
def __process_fieldtype(self):
|
||||
try:
|
||||
|
|
@ -174,11 +432,10 @@ class Field(Component):
|
|||
'\'x' if not obj.get_property("reset") else\
|
||||
obj.get_property('reset')
|
||||
|
||||
# Define hardware access
|
||||
self.hw_access = obj.get_property('hw')
|
||||
self.sw_access = obj.get_property('sw')
|
||||
self.precedence = obj.get_property('precedence')
|
||||
|
||||
# Define dict that holds all RTL
|
||||
self.access_rtl = dict()
|
||||
self.access_rtl['else'] = (["else"], False)
|
||||
self.access_rtl[''] = ([''], False)
|
||||
|
||||
def summary(self):
|
||||
# Additional flags that are set
|
||||
|
|
@ -189,14 +446,16 @@ class Field(Component):
|
|||
misc_flags.discard('hw')
|
||||
misc_flags.discard('reset')
|
||||
|
||||
precedence = self.obj.get_property('precedence')
|
||||
|
||||
# Add comment with summary on field's properties
|
||||
return \
|
||||
Field.templ_dict['field_comment']['rtl'].format(
|
||||
name = self.name,
|
||||
hw_access = str(self.hw_access)[11:],
|
||||
sw_access = str(self.sw_access)[11:],
|
||||
hw_precedence = '(precedence)' if self.precedence == PrecedenceType.hw else '',
|
||||
sw_precedence = '(precedence)' if self.precedence == PrecedenceType.sw else '',
|
||||
hw_access = str(self.obj.get_property('hw'))[11:],
|
||||
sw_access = str(self.obj.get_property('sw'))[11:],
|
||||
hw_precedence = '(precedence)' if precedence == PrecedenceType.hw else '',
|
||||
sw_precedence = '(precedence)' if precedence == PrecedenceType.sw else '',
|
||||
rst_active = self.rst['active'],
|
||||
rst_type = self.rst['type'],
|
||||
misc_flags = misc_flags if misc_flags else '-',
|
||||
|
|
@ -209,228 +468,38 @@ class Field(Component):
|
|||
sense_list = 'sense_list_rst' if self.rst['async'] else 'sense_list_no_rst'
|
||||
|
||||
self.rtl_header.append(
|
||||
Field.templ_dict[sense_list]['rtl'].format(
|
||||
rst_edge = self.rst['edge'],
|
||||
rst_name = self.rst['name']))
|
||||
self.process_yaml(
|
||||
Field.templ_dict[sense_list],
|
||||
{'rst_edge': self.rst['edge'],
|
||||
'rst_name': self.rst['name']}
|
||||
)
|
||||
)
|
||||
|
||||
# Add actual reset line
|
||||
if self.rst['name']:
|
||||
self.rtl_header.append(
|
||||
Field.templ_dict['rst_field_assign']['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
rst_name = self.rst['name'],
|
||||
rst_negl = "!" if self.rst['active'] == "active_low" else "",
|
||||
rst_value = self.rst['value'],
|
||||
genvars = self.genvars_str))
|
||||
|
||||
self.yaml_signals_to_list(Field.templ_dict['rst_field_assign'])
|
||||
self.process_yaml(
|
||||
Field.templ_dict['rst_field_assign'],
|
||||
{'path': self.path_underscored,
|
||||
'rst_name': self.rst['name'],
|
||||
'rst_negl': "!" if self.rst['active'] == "active_low" else "",
|
||||
'rst_value': self.rst['value'],
|
||||
'genvars': self.genvars_str,
|
||||
'field_type': self.field_type}
|
||||
)
|
||||
)
|
||||
|
||||
self.rtl_header.append("begin")
|
||||
|
||||
# Add name of actual field to Signal field
|
||||
# TODO
|
||||
|
||||
def __prepend_signal_declarations(self):
|
||||
pass
|
||||
|
||||
|
||||
def __add_access_rtl(self):
|
||||
# Not all access types are required and the order might differ
|
||||
# depending on what types are defined and what precedence is
|
||||
# set. Therefore, first add all RTL into a dictionary and
|
||||
# later place it in the right order.
|
||||
#
|
||||
# The following RTL blocks are defined:
|
||||
# - hw_write --> write access for the hardware interface
|
||||
# - sw_write --> write access for the software interface
|
||||
#
|
||||
access_rtl = dict()
|
||||
|
||||
# Define hardware access (if applicable)
|
||||
if self.hw_access in (AccessType.rw, AccessType.w):
|
||||
write_condition = 'hw_access_we_wel' if self.we_or_wel else 'hw_access_no_we_wel'
|
||||
|
||||
# if-line of hw-access
|
||||
access_rtl['hw_write'] = ([
|
||||
Field.templ_dict[write_condition]['rtl'].format(
|
||||
negl = '!' if self.obj.get_property('wel') else '',
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str)
|
||||
],
|
||||
write_condition == 'hw_access_no_we_wel') # Abort if no condition is set
|
||||
|
||||
# Actual assignment of register
|
||||
access_rtl['hw_write'][0].append(
|
||||
Field.templ_dict['hw_access_field']['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str))
|
||||
|
||||
# Get ports/signals from list
|
||||
self.yaml_signals_to_list(Field.templ_dict[write_condition])
|
||||
self.yaml_signals_to_list(Field.templ_dict['hw_access_field'])
|
||||
else:
|
||||
access_rtl['hw_write'] = ([], False)
|
||||
|
||||
# Define software access (if applicable)
|
||||
access_rtl['sw_write'] = ([], False)
|
||||
|
||||
if self.sw_access in (AccessType.rw, AccessType.w):
|
||||
swwe = self.obj.get_property('swwe')
|
||||
swwel = self.obj.get_property('swwel')
|
||||
|
||||
if isinstance(swwe, (FieldNode, SignalNode)):
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict['sw_access_field_swwe']['rtl'].format(
|
||||
path_wo_field = self.path_wo_field,
|
||||
genvars = self.genvars_str,
|
||||
swwe = self.get_signal_name(swwe)))
|
||||
elif isinstance(swwel, (FieldNode, SignalNode)):
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict['sw_access_field_swwel']['rtl'].format(
|
||||
path_wo_field = self.path_wo_field,
|
||||
genvars = self.genvars_str,
|
||||
swwel = self.get_signal_name(swwel)))
|
||||
else:
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict['sw_access_field']['rtl'].format(
|
||||
path_wo_field = self.path_wo_field,
|
||||
genvars = self.genvars_str))
|
||||
|
||||
# Check if an onwrite property is set
|
||||
onwrite = self.obj.get_property('onwrite')
|
||||
|
||||
if onwrite:
|
||||
if onwrite == OnWriteType.wuser:
|
||||
self.logger.warning("The OnReadType.wuser is not yet supported!")
|
||||
elif onwrite in (OnWriteType.wclr, OnWriteType.wset):
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict[str(onwrite)]['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str,
|
||||
width = self.obj.width,
|
||||
path_wo_field = self.path_wo_field
|
||||
)
|
||||
)
|
||||
else:
|
||||
# If field spans multiple bytes, every byte shall have a seperate enable!
|
||||
for j, i in enumerate(range(self.lsbyte, self.msbyte+1)):
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict[str(onwrite)]['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str,
|
||||
i = i,
|
||||
width = self.obj.width,
|
||||
msb_bus = str(8*(i+1)-1 if i != self.msbyte else self.obj.msb),
|
||||
bus_w = str(8 if i != self.msbyte else self.obj.width-(8*j)),
|
||||
msb_field = str(8*(j+1)-1 if i != self.msbyte else self.obj.width-1),
|
||||
field_w = str(8 if i != self.msbyte else self.obj.width-(8*j))))
|
||||
else:
|
||||
# Normal write
|
||||
# If field spans multiple bytes, every byte shall have a seperate enable!
|
||||
for j, i in enumerate(range(self.lsbyte, self.msbyte+1)):
|
||||
access_rtl['sw_write'][0].append(
|
||||
Field.templ_dict['sw_access_byte']['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str,
|
||||
i = i,
|
||||
msb_bus = str(8*(i+1)-1 if i != self.msbyte else self.obj.msb),
|
||||
bus_w = str(8 if i != self.msbyte else self.obj.width-(8*j)),
|
||||
msb_field = str(8*(j+1)-1 if i != self.msbyte else self.obj.width-1),
|
||||
field_w = str(8 if i != self.msbyte else self.obj.width-(8*j))))
|
||||
|
||||
access_rtl['sw_write'][0].append("end")
|
||||
|
||||
onread = self.obj.get_property('onread')
|
||||
|
||||
access_rtl['sw_read'] = ([], False)
|
||||
if self.sw_access in (AccessType.rw, AccessType.r) and onread:
|
||||
if onread == OnReadType.ruser:
|
||||
self.logger.warning("The OnReadType.ruser is not yet supported!")
|
||||
else:
|
||||
access_rtl['sw_read'][0].append(
|
||||
Field.templ_dict[str(onread)]['rtl'].format(
|
||||
width = self.obj.width,
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str,
|
||||
path_wo_field = self.path_wo_field
|
||||
)
|
||||
)
|
||||
|
||||
# Add singlepulse property
|
||||
if self.obj.get_property('singlepulse'):
|
||||
access_rtl['singlepulse'] = ([
|
||||
Field.templ_dict['singlepulse']['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
genvars = self.genvars_str)
|
||||
],
|
||||
True)
|
||||
else:
|
||||
access_rtl['singlepulse'] = ([], False)
|
||||
|
||||
# Define else
|
||||
access_rtl['else'] = (["else"], False)
|
||||
|
||||
# Add empty string
|
||||
access_rtl[''] = ([''], False)
|
||||
|
||||
# Check if hardware has precedence (default `precedence = sw`)
|
||||
if self.precedence == PrecedenceType.sw:
|
||||
order_list = [
|
||||
'sw_write',
|
||||
'sw_read',
|
||||
'hw_write',
|
||||
'singlepulse'
|
||||
]
|
||||
else:
|
||||
order_list = [
|
||||
'hw_write',
|
||||
'sw_write',
|
||||
'sw_read',
|
||||
'singlepulse'
|
||||
]
|
||||
|
||||
# Add appropriate else
|
||||
order_list_rtl = []
|
||||
abort_set = False
|
||||
|
||||
for i in order_list:
|
||||
# Still a loop and not a list comprehension since this might
|
||||
# get longer in the future and thus become unreadable
|
||||
if len(access_rtl[i][0]) and not abort_set:
|
||||
order_list_rtl = [*order_list_rtl, *access_rtl[i][0]]
|
||||
order_list_rtl.append("else")
|
||||
|
||||
# If he access_rtl entry has an abortion entry, do not print
|
||||
# any further branches of the conditional block
|
||||
abort_set = access_rtl[i][1]
|
||||
|
||||
# Remove last else
|
||||
order_list_rtl.pop()
|
||||
|
||||
# Chain access RTL to the rest of the RTL
|
||||
self.rtl_header = [*self.rtl_header, *order_list_rtl]
|
||||
|
||||
self.rtl_header.append(
|
||||
Field.templ_dict['end_field_ff']['rtl'].format(
|
||||
path = self.path_underscored))
|
||||
|
||||
|
||||
def __add_ports(self):
|
||||
if self.hw_access in (AccessType.rw, AccessType.r):
|
||||
# Connect flops to output port
|
||||
self.rtl_header.append(
|
||||
Field.templ_dict['out_port_assign']['rtl'].format(
|
||||
genvars = self.genvars_str,
|
||||
path = self.path_underscored))
|
||||
|
||||
self.yaml_signals_to_list(Field.templ_dict['out_port_assign'])
|
||||
|
||||
def sanity_checks(self):
|
||||
# If hw=rw/sw=[r]w and hw has no we/wel, sw will never be able to write
|
||||
if not self.we_or_wel and\
|
||||
self.precedence == PrecedenceType.hw and \
|
||||
self.hw_access in (AccessType.rw, AccessType.w) and \
|
||||
self.sw_access in (AccessType.rw, AccessType.w):
|
||||
self.obj.get_property('precedence') == PrecedenceType.hw and \
|
||||
self.obj.get_property('hw') in (AccessType.rw, AccessType.w) and \
|
||||
self.obj.get_property('sw') in (AccessType.rw, AccessType.w):
|
||||
|
||||
self.logger.warning("Fields with hw=rw/sw=[r]w, we/wel not set and "\
|
||||
"precedence for hardware will render software's "\
|
||||
|
|
|
|||
|
|
@ -34,18 +34,23 @@ class RegFile(Component):
|
|||
# Create comment and provide user information about register he/she
|
||||
# is looking at.
|
||||
self.rtl_header = [
|
||||
RegFile.templ_dict['regfile_comment']['rtl'].format(
|
||||
name = obj.inst_name,
|
||||
dimensions = self.dimensions,
|
||||
depth = self.depth),
|
||||
*self.rtl_header
|
||||
self.process_yaml(
|
||||
RegFile.templ_dict['regfile_comment'],
|
||||
{'name': obj.inst_name,
|
||||
'dimensions': self.dimensions,
|
||||
'depth': self.depth}
|
||||
),
|
||||
*self.rtl_header
|
||||
]
|
||||
|
||||
# Create generate block for register and add comment
|
||||
for i in range(self.dimensions-1, -1, -1):
|
||||
self.rtl_footer.append(
|
||||
RegFile.templ_dict['generate_for_end']['rtl'].format(
|
||||
dimension = chr(97+i)))
|
||||
self.process_yaml(
|
||||
RegFile.templ_dict['generate_for_end'],
|
||||
{'dimension': chr(97+i)}
|
||||
)
|
||||
)
|
||||
|
||||
if self.dimensions and not glbl_settings['generate_active']:
|
||||
self.rtl_header.append("generate")
|
||||
|
|
@ -56,15 +61,18 @@ class RegFile(Component):
|
|||
|
||||
for i in range(self.dimensions):
|
||||
self.rtl_header.append(
|
||||
RegFile.templ_dict['generate_for_start']['rtl'].format(
|
||||
iterator = chr(97+i+self.parents_depths),
|
||||
limit = self.array_dimensions[i]))
|
||||
self.process_yaml(
|
||||
RegFile.templ_dict['generate_for_start'],
|
||||
{'iterator': chr(97+i+self.parents_depths),
|
||||
'limit': self.array_dimensions[i]}
|
||||
)
|
||||
)
|
||||
|
||||
# Empty dictionary of register objects
|
||||
# We need a dictionary since it might be required to access the objects later
|
||||
# by name (for example, in case of aliases)
|
||||
self.registers = dict()
|
||||
self.regfiles = []
|
||||
self.regfiles = dict()
|
||||
|
||||
# Set object to 0 for easy addressing
|
||||
self.obj.current_idx = [0]
|
||||
|
|
@ -79,19 +87,20 @@ class RegFile(Component):
|
|||
elif isinstance(child, node.RegfileNode):
|
||||
self.obj.current_idx = [0]
|
||||
|
||||
self.regfiles.append(
|
||||
self.regfiles[child.inst_name] = \
|
||||
RegFile(
|
||||
child,
|
||||
self.total_array_dimensions,
|
||||
self.total_stride,
|
||||
config,
|
||||
glbl_settings))
|
||||
glbl_settings)
|
||||
elif isinstance(child, node.RegNode):
|
||||
if child.inst.is_alias:
|
||||
# If the node we found is an alias, we shall not create a
|
||||
# new register. Rather, we bury up the old register and add
|
||||
# additional properties
|
||||
self.logger.error('Alias registers are not implemented yet!')
|
||||
self.registers[child.inst.alias_primary_inst.inst_name]\
|
||||
.add_alias(child)
|
||||
else:
|
||||
self.obj.current_idx = [0]
|
||||
self.registers[child.inst_name] = \
|
||||
|
|
@ -104,10 +113,7 @@ class RegFile(Component):
|
|||
|
||||
# Add registers to children. This must be done in a last step
|
||||
# to account for all possible alias combinations
|
||||
self.children = [
|
||||
*self.regfiles,
|
||||
*[x for x in self.registers.values()]
|
||||
]
|
||||
self.children = {**self.regfiles, **self.registers}
|
||||
|
||||
self.logger.info("Done generating all child-regfiles/registers")
|
||||
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
import importlib.resources as pkg_resources
|
||||
import yaml
|
||||
import math
|
||||
import sys
|
||||
import yaml
|
||||
|
||||
from systemrdl import node
|
||||
|
||||
|
|
@ -25,43 +26,59 @@ class Register(Component):
|
|||
super().__init__(obj, config)
|
||||
|
||||
# Save and/or process important variables
|
||||
self.__process_variables(obj, parents_dimensions, parents_stride)
|
||||
self.__process_variables(obj, parents_dimensions, parents_stride, glbl_settings)
|
||||
|
||||
# Create RTL for fields
|
||||
# Fields should be in order in RTL,therefore, use list
|
||||
# Fields should be in order in RTL, therefore, use list
|
||||
for field in obj.fields():
|
||||
field_obj = Field(field, self.total_array_dimensions, config, glbl_settings)
|
||||
# Use range to save field in an array. Reason is, names are allowed to
|
||||
# change when using an alias
|
||||
field_range = ':'.join(map(str, [field.msb, field.lsb]))
|
||||
|
||||
self.children[field_range] = Field(field,
|
||||
self.total_array_dimensions,
|
||||
config,
|
||||
glbl_settings)
|
||||
|
||||
if not config['disable_sanity']:
|
||||
field_obj.sanity_checks()
|
||||
|
||||
self.children.append(field_obj)
|
||||
self.children[field_range].sanity_checks()
|
||||
|
||||
def create_rtl(self):
|
||||
# Create generate block for register and add comment
|
||||
if self.dimensions and not glbl_settings['generate_active']:
|
||||
if self.dimensions and not self.generate_active:
|
||||
self.rtl_header.append("generate")
|
||||
glbl_settings['generate_active'] = True
|
||||
self.generate_initiated = True
|
||||
else:
|
||||
self.generate_initiated = False
|
||||
|
||||
# Add N layers of for-loop starts
|
||||
for i in range(self.dimensions):
|
||||
self.rtl_header.append(
|
||||
Register.templ_dict['generate_for_start'].format(
|
||||
iterator = chr(97+i+self.parents_depths),
|
||||
limit = self.array_dimensions[i]))
|
||||
|
||||
# Add decoders for all registers & aliases
|
||||
self.__add_address_decoder()
|
||||
|
||||
# End loops
|
||||
# Fields will be added by get_rtl()
|
||||
|
||||
# Add N layers of for-loop end
|
||||
for i in range(self.dimensions-1, -1, -1):
|
||||
self.rtl_footer.append(
|
||||
Register.templ_dict['generate_for_end'].format(
|
||||
dimension = chr(97+i)))
|
||||
|
||||
if self.generate_initiated:
|
||||
glbl_settings['generate_active'] = False
|
||||
self.rtl_footer.append("endgenerate")
|
||||
if self.dimensions and not self.generate_active:
|
||||
self.rtl_footer.append("endgenerate\n")
|
||||
|
||||
# Create comment and provide user information about register he/she is looking at
|
||||
self.rtl_header = [
|
||||
Register.templ_dict['reg_comment'].format(
|
||||
name = obj.inst_name,
|
||||
dimensions = self.dimensions,
|
||||
depth = self.depth),
|
||||
*self.rtl_header
|
||||
]
|
||||
|
||||
def __add_address_decoder(self):
|
||||
# Assign variables from bus
|
||||
self.obj.current_idx = [0]
|
||||
|
||||
|
|
@ -70,15 +87,18 @@ class Register(Component):
|
|||
else:
|
||||
rw_wire_assign_field = 'rw_wire_assign_1_dim'
|
||||
|
||||
self.rtl_header.append(
|
||||
Register.templ_dict[rw_wire_assign_field]['rtl'].format(
|
||||
path = self.path_underscored,
|
||||
addr = self.obj.absolute_address,
|
||||
genvars = self.genvars_str,
|
||||
genvars_sum =self.genvars_sum_str,
|
||||
depth = self.depth))
|
||||
|
||||
self.yaml_signals_to_list(Register.templ_dict[rw_wire_assign_field])
|
||||
[self.rtl_header.append(
|
||||
self.process_yaml(
|
||||
Register.templ_dict[rw_wire_assign_field],
|
||||
{'path': x[0],
|
||||
'addr': x[1],
|
||||
'alias': '(alias)' if i > 0 else '',
|
||||
'genvars': self.genvars_str,
|
||||
'genvars_sum': self.genvars_sum_str,
|
||||
'depth': self.depth,
|
||||
'field_type': self.field_type}
|
||||
)
|
||||
) for i, x in enumerate(self.alias_names)]
|
||||
|
||||
# Add wire/register instantiations
|
||||
dict_list = [(key, value) for (key, value) in self.get_signals().items()]
|
||||
|
|
@ -103,31 +123,48 @@ class Register(Component):
|
|||
*self.rtl_header,
|
||||
]
|
||||
|
||||
# Create comment and provide user information about register he/she
|
||||
# is looking at.
|
||||
self.rtl_header = [
|
||||
Register.templ_dict['reg_comment'].format(
|
||||
name = obj.inst_name,
|
||||
dimensions = self.dimensions,
|
||||
depth = self.depth),
|
||||
*self.rtl_header
|
||||
]
|
||||
def add_alias(self, obj: node.RegNode):
|
||||
for field in obj.fields():
|
||||
# Use range to save field in an array. Reason is, names are allowed to
|
||||
# change when using an alias
|
||||
field_range = ':'.join(map(str, [field.msb, field.lsb]))
|
||||
|
||||
try:
|
||||
self.children[field_range].add_sw_access(field, alias=True)
|
||||
except KeyError:
|
||||
self.logger.fatal("Range of field '{}' in alias register '{}' does "
|
||||
"not correspond to range of field in original "
|
||||
"register '{}'. This is illegal according to 10.5.1 b)"
|
||||
"of the SystemRDL 2.0 LRM.". format(
|
||||
field.inst_name,
|
||||
obj.inst_name,
|
||||
self.name))
|
||||
sys.exit(1)
|
||||
|
||||
# Add name to list
|
||||
self.obj.current_idx = [0]
|
||||
self.alias_names.append((self.create_underscored_path_static(obj)[3], obj.absolute_address))
|
||||
|
||||
def __process_variables(
|
||||
self,
|
||||
obj: node.RegNode,
|
||||
parents_dimensions: list,
|
||||
parents_stride: list):
|
||||
parents_stride: list,
|
||||
glbl_settings: dict):
|
||||
# Save object
|
||||
self.obj = obj
|
||||
|
||||
# Save name
|
||||
self.obj.current_idx = [0]
|
||||
self.name = obj.inst_name
|
||||
self.alias_names = [(self.create_underscored_path_static(obj)[3], obj.absolute_address)]
|
||||
|
||||
# Create full name
|
||||
self.create_underscored_path()
|
||||
|
||||
# Gnerate already started?
|
||||
self.generate_active = glbl_settings['generate_active']
|
||||
|
||||
# Determine dimensions of register
|
||||
if obj.is_array:
|
||||
self.sel_arr = 'array'
|
||||
|
|
|
|||
|
|
@ -33,7 +33,9 @@ sw_access_byte:
|
|||
begin
|
||||
{path}_q{genvars}[{msb_field}-:{field_w}] <= sw_wr_bus[{msb_bus}-:{bus_w}];
|
||||
end
|
||||
|
||||
signals:
|
||||
- name: '{path}_q'
|
||||
signal_type: '{field_type}'
|
||||
hw_access_we_wel:
|
||||
rtl: |-
|
||||
if ({negl}{path}_hw_wr{genvars})
|
||||
|
|
|
|||
|
|
@ -1,34 +1,31 @@
|
|||
---
|
||||
rw_wire_assign_1_dim:
|
||||
rtl: |
|
||||
// Assign register-activation signals
|
||||
assign {path}_reg_active{genvars} = addr == {addr};
|
||||
|
||||
assign {path}_sw_wr = {path}_reg_active && r_vld;
|
||||
assign {path}_sw_rd = {path}_reg_active && w_vld;
|
||||
// Register-activation for '{path}' {alias}
|
||||
assign {path}_accss = addr == {addr};
|
||||
assign {path}_sw_wr = {path}_accss && r_vld;
|
||||
assign {path}_sw_rd = {path}_accss && w_vld;
|
||||
signals:
|
||||
- name: '{path}_sw_wr'
|
||||
signal_type: 'logic'
|
||||
- name: '{path}_sw_rd'
|
||||
signal_type: 'logic'
|
||||
- name: '{path}_reg_active'
|
||||
- name: '{path}_accss'
|
||||
signal_type: 'logic'
|
||||
input_ports:
|
||||
output_ports:
|
||||
rw_wire_assign_multi_dim:
|
||||
rtl: |
|
||||
|
||||
// Assign register-activation signals
|
||||
assign {path}_reg_active{genvars} = addr == {addr}+({genvars_sum});
|
||||
|
||||
assign {path}_sw_wr{genvars} = {path}_reg_active{genvars} && r_vld;
|
||||
assign {path}_sw_rd{genvars} = {path}_reg_active{genvars} && w_vld;
|
||||
// Register-activation for '{path}' {alias}
|
||||
assign {path}_accss{genvars} = addr == {addr}+({genvars_sum});
|
||||
assign {path}_sw_wr{genvars} = {path}_accss{genvars} && r_vld;
|
||||
assign {path}_sw_rd{genvars} = {path}_accss{genvars} && w_vld;
|
||||
signals:
|
||||
- name: '{path}_sw_wr'
|
||||
signal_type: 'logic'
|
||||
- name: '{path}_sw_rd'
|
||||
signal_type: 'logic'
|
||||
- name: '{path}_reg_active'
|
||||
- name: '{path}_accss'
|
||||
signal_type: 'logic'
|
||||
input_ports:
|
||||
output_ports:
|
||||
|
|
|
|||
Loading…
Reference in New Issue