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*: remove unused variables

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Robin Ole Heinemann 2021-05-18 21:10:47 +02:00 committed by whitequark
parent 25caf4045b
commit f570e1bbeb
3 changed files with 3 additions and 8 deletions
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2
nmigen/hdl/rec.py
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@ -49,7 +49,7 @@ class Layout:
try: try:
# Check provided shape by calling Shape.cast and checking for exception # Check provided shape by calling Shape.cast and checking for exception
Shape.cast(shape, src_loc_at=1 + src_loc_at) Shape.cast(shape, src_loc_at=1 + src_loc_at)
except Exception as error: except Exception:
raise TypeError("Field {!r} has invalid shape: should be castable to Shape " raise TypeError("Field {!r} has invalid shape: should be castable to Shape "
"or a list of fields of a nested record" "or a list of fields of a nested record"
.format(field)) .format(field))

4
nmigen/lib/fifo.py
View file

@ -300,7 +300,7 @@ class AsyncFIFO(Elaboratable, FIFOInterface):
try: try:
depth_bits = log2_int(depth, need_pow2=exact_depth) depth_bits = log2_int(depth, need_pow2=exact_depth)
depth = 1 << depth_bits depth = 1 << depth_bits
except ValueError as e: except ValueError:
raise ValueError("AsyncFIFO only supports depths that are powers of 2; requested " raise ValueError("AsyncFIFO only supports depths that are powers of 2; requested "
"exact depth {} is not" "exact depth {} is not"
.format(depth)) from None .format(depth)) from None
@ -480,7 +480,7 @@ class AsyncFIFOBuffered(Elaboratable, FIFOInterface):
try: try:
depth_bits = log2_int(max(0, depth - 1), need_pow2=exact_depth) depth_bits = log2_int(max(0, depth - 1), need_pow2=exact_depth)
depth = (1 << depth_bits) + 1 depth = (1 << depth_bits) + 1
except ValueError as e: except ValueError:
raise ValueError("AsyncFIFOBuffered only supports depths that are one higher " raise ValueError("AsyncFIFOBuffered only supports depths that are one higher "
"than powers of 2; requested exact depth {} is not" "than powers of 2; requested exact depth {} is not"
.format(depth)) from None .format(depth)) from None

5
nmigen/sim/_pyrtl.py
View file

@ -140,8 +140,6 @@ class _RHSValueCompiler(_ValueCompiler):
return self(arg) return self(arg)
elif len(value.operands) == 2: elif len(value.operands) == 2:
lhs, rhs = value.operands lhs, rhs = value.operands
lhs_mask = (1 << len(lhs)) - 1
rhs_mask = (1 << len(rhs)) - 1
if value.operator == "+": if value.operator == "+":
return f"({sign(lhs)} + {sign(rhs)})" return f"({sign(lhs)} + {sign(rhs)})"
if value.operator == "-": if value.operator == "-":
@ -217,7 +215,6 @@ class _RHSValueCompiler(_ValueCompiler):
gen_index = self.emitter.def_var("rhs_index", f"{index_mask} & {self(value.index)}") gen_index = self.emitter.def_var("rhs_index", f"{index_mask} & {self(value.index)}")
gen_value = self.emitter.gen_var("rhs_proxy") gen_value = self.emitter.gen_var("rhs_proxy")
if value.elems: if value.elems:
gen_elems = []
for index, elem in enumerate(value.elems): for index, elem in enumerate(value.elems):
if index == 0: if index == 0:
self.emitter.append(f"if {index} == {gen_index}:") self.emitter.append(f"if {index} == {gen_index}:")
@ -292,7 +289,6 @@ class _LHSValueCompiler(_ValueCompiler):
def on_Cat(self, value): def on_Cat(self, value):
def gen(arg): def gen(arg):
gen_arg = self.emitter.def_var("cat", arg) gen_arg = self.emitter.def_var("cat", arg)
gen_parts = []
offset = 0 offset = 0
for part in value.parts: for part in value.parts:
part_mask = (1 << len(part)) - 1 part_mask = (1 << len(part)) - 1
@ -308,7 +304,6 @@ class _LHSValueCompiler(_ValueCompiler):
index_mask = (1 << len(value.index)) - 1 index_mask = (1 << len(value.index)) - 1
gen_index = self.emitter.def_var("index", f"{self.rrhs(value.index)} & {index_mask}") gen_index = self.emitter.def_var("index", f"{self.rrhs(value.index)} & {index_mask}")
if value.elems: if value.elems:
gen_elems = []
for index, elem in enumerate(value.elems): for index, elem in enumerate(value.elems):
if index == 0: if index == 0:
self.emitter.append(f"if {index} == {gen_index}:") self.emitter.append(f"if {index} == {gen_index}:")