bslathi19/PeakRDL-regblock
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Simplify stickybit implementation for single-bit fields to not create redundant expression. #127

Browse Source
This commit is contained in:
Alex Mykyta
2025-03-07 19:39:57 -08:00
parent 6430dd4914
commit 3ed2e1f891
1 changed files with 55 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
src/peakrdl_regblock/field_logic/hw_interrupts.py
View File

@@ -46,15 +46,24 @@ class Stickybit(NextStateConditional):
def get_predicate(self, field: 'FieldNode') -> str:
F = self.exp.hwif.get_input_identifier(field)
return f"{F} != '0"
if field.width == 1:
return str(F)
else:
return f"{F} != '0"
def get_assignments(self, field: 'FieldNode') -> List[str]:
I = self.exp.hwif.get_input_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | {I};",
"load_next_c = '1;",
]
if field.width == 1:
return [
"next_c = '1;",
"load_next_c = '1;",
]
else:
I = self.exp.hwif.get_input_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | {I};",
"load_next_c = '1;",
]
class PosedgeStickybit(NextStateConditional):
"""
@@ -74,13 +83,19 @@ class PosedgeStickybit(NextStateConditional):
return f"(~{Iq} & {I}) != '0"
def get_assignments(self, field: 'FieldNode') -> List[str]:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | (~{Iq} & {I});",
"load_next_c = '1;",
]
if field.width == 1:
return [
"next_c = '1;",
"load_next_c = '1;",
]
else:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | (~{Iq} & {I});",
"load_next_c = '1;",
]
class NegedgeStickybit(NextStateConditional):
"""
@@ -100,13 +115,19 @@ class NegedgeStickybit(NextStateConditional):
return f"({Iq} & ~{I}) != '0"
def get_assignments(self, field: 'FieldNode') -> List[str]:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | ({Iq} & ~{I});",
"load_next_c = '1;",
]
if field.width == 1:
return [
"next_c = '1;",
"load_next_c = '1;",
]
else:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | ({Iq} & ~{I});",
"load_next_c = '1;",
]
class BothedgeStickybit(NextStateConditional):
"""
@@ -126,13 +147,19 @@ class BothedgeStickybit(NextStateConditional):
return f"{Iq} != {I}"
def get_assignments(self, field: 'FieldNode') -> List[str]:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | ({Iq} ^ {I});",
"load_next_c = '1;",
]
if field.width == 1:
return [
"next_c = '1;",
"load_next_c = '1;",
]
else:
I = self.exp.hwif.get_input_identifier(field)
Iq = self.exp.field_logic.get_next_q_identifier(field)
R = self.exp.field_logic.get_storage_identifier(field)
return [
f"next_c = {R} | ({Iq} ^ {I});",
"load_next_c = '1;",
]
class PosedgeNonsticky(NextStateUnconditional):
"""