bslathi19/PeakRDL-regblock
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This commit is contained in:
Alex Mykyta
2021-12-04 17:24:19 -08:00
parent f70bdf774c
commit 3adf7e1328
44 changed files with 827 additions and 63 deletions
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2
peakrdl/regblock/__about__.py
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@@ -1 +1 @@
__version__ = "0.1.0"
__version__ = "0.1.0-a1"

6
peakrdl/regblock/dereferencer.py
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@@ -81,12 +81,14 @@ class Dereferencer:
def get_field_propref_value(self, field: FieldNode, prop_name: str) -> str:
# Value reduction properties.
# Wrap with the appropriate Verilog reduction operator
val = self.get_value(field)
if prop_name == "anded":
val = self.get_value(field)
return f"&({val})"
elif prop_name == "ored":
val = self.get_value(field)
return f"|({val})"
elif prop_name == "xored":
val = self.get_value(field)
return f"^({val})"
# references that directly access a property value
@@ -159,7 +161,7 @@ class Dereferencer:
prop_value = field.get_property(complementary_pairs[prop_name])
if prop_value is True:
# Points to inferred hwif input
return f"!({self.hwif.get_implied_prop_input_identifier(field, prop_name)})"
return f"!({self.hwif.get_implied_prop_input_identifier(field, complementary_pairs[prop_name])})"
elif prop_value is False:
# This should never happen, as this is checked by the compiler's validator
raise RuntimeError

10
peakrdl/regblock/field_logic/sw_onwrite.py
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@@ -8,7 +8,6 @@ if TYPE_CHECKING:
from systemrdl.node import FieldNode
# TODO: implement sw=w1 "write once" fields
# TODO: Implement swwe/swwel masking properties
class _OnWrite(NextStateConditional):
onwritetype = None
@@ -17,8 +16,15 @@ class _OnWrite(NextStateConditional):
def get_predicate(self, field: 'FieldNode') -> str:
strb = self.exp.dereferencer.get_access_strobe(field)
if field.get_property('swwe') or field.get_property('swwel'):
# dereferencer will wrap swwel complement if necessary
qualifier = self.exp.dereferencer.get_field_propref_value(field, 'swwe')
return f"{strb} && decoded_req_is_wr && {qualifier}"
return f"{strb} && decoded_req_is_wr"
def _wr_data(self, field: 'FieldNode') -> str:
if field.msb < field.lsb:
# Field gets bitswapped since it is in [low:high] orientation
@@ -34,7 +40,7 @@ class WriteOneSet(_OnWrite):
def get_assignments(self, field: 'FieldNode') -> List[str]:
field_path = self.get_field_path(field)
return [
f"field_combo.{field_path}.next = field_storage.{field_path} | {self._wr_data(field)}];",
f"field_combo.{field_path}.next = field_storage.{field_path} | {self._wr_data(field)};",
f"field_combo.{field_path}.load_next = '1;",
]