bslathi19/PeakRDL-regblock
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First read/write!

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This commit is contained in:
Alex Mykyta
2021-11-16 23:29:58 -08:00
parent d5c5d42390
commit 249fc2df7c
33 changed files with 1332 additions and 202 deletions
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68
peakrdl/regblock/field_logic/generators.py
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@@ -54,16 +54,20 @@ class FieldLogicGenerator(RDLForLoopGenerator):
def __init__(self, field_logic: 'FieldLogic'):
super().__init__()
self.field_logic = field_logic
self.template = self.field_logic.exp.jj_env.get_template(
self.exp = field_logic.exp
self.field_storage_template = self.field_logic.exp.jj_env.get_template(
"field_logic/templates/field_storage.sv"
)
def enter_Field(self, node: 'FieldNode') -> None:
# If a field doesn't implement storage, it is not relevant here
if not node.implements_storage:
return
if node.implements_storage:
self.generate_field_storage(node)
self.assign_field_outputs(node)
def generate_field_storage(self, node: 'FieldNode') -> None:
conditionals = self.field_logic.get_conditionals(node)
extra_combo_signals = OrderedDict()
for conditional in conditionals:
@@ -74,11 +78,11 @@ class FieldLogicGenerator(RDLForLoopGenerator):
if sig is not None:
resetsignal = RDLSignal(sig)
else:
resetsignal = self.field_logic.exp.default_resetsignal
resetsignal = self.exp.default_resetsignal
reset_value = node.get_property("reset")
if reset_value is not None:
reset_value_str = self.field_logic.exp.dereferencer.get_value(reset_value)
reset_value_str = self.exp.dereferencer.get_value(reset_value)
else:
# 5.9.1-g: If no reset value given, the field is not reset, even if it has a resetsignal.
reset_value_str = None
@@ -87,13 +91,55 @@ class FieldLogicGenerator(RDLForLoopGenerator):
context = {
'node': node,
'reset': reset_value_str,
'field_path': get_indexed_path(self.field_logic.top_node, node),
'field_path': get_indexed_path(self.exp.top_node, node),
'extra_combo_signals': extra_combo_signals,
'conditionals': conditionals,
'resetsignal': resetsignal,
'get_always_ff_event': get_always_ff_event,
'has_value_output': self.field_logic.exp.hwif.has_value_output,
'get_output_identifier': self.field_logic.exp.hwif.get_output_identifier,
}
self.add_content(self.template.render(context))
self.add_content(self.field_storage_template.render(context))
def assign_field_outputs(self, node: 'FieldNode') -> None:
field_path = get_indexed_path(self.exp.top_node, node)
# Field value output
if self.exp.hwif.has_value_output(node):
output_identifier = self.exp.hwif.get_output_identifier(node)
self.add_content(
f"assign {output_identifier} = field_storage.{field_path};"
)
# Inferred logical reduction outputs
if node.get_property("anded"):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "anded")
value = self.exp.dereferencer.get_field_propref_value(node, "anded")
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property("ored"):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "ored")
value = self.exp.dereferencer.get_field_propref_value(node, "ored")
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property("xored"):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "xored")
value = self.exp.dereferencer.get_field_propref_value(node, "xored")
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property("swmod"):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "swmod")
value = self.field_logic.get_swmod_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)
if node.get_property("swacc"):
output_identifier = self.exp.hwif.get_implied_prop_output_identifier(node, "swacc")
value = self.field_logic.get_swacc_identifier(node)
self.add_content(
f"assign {output_identifier} = {value};"
)