Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-02-11 06:05:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Cleanup lint warnings in CacheSim.py

Browse Source
This commit is contained in:
Jordan Carlin 2024-12-11 22:42:51 -08:00
parent bc2a0d2714
commit 71168e5a97
No known key found for this signature in database
1 changed files with 45 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
bin/CacheSim.py
View File

@ -44,6 +44,7 @@
import math import math
import argparse import argparse
import os import os
import sys
class CacheLine: class CacheLine:
def __init__(self): def __init__(self):
@ -72,7 +73,7 @@ class Cache:
self.ways = [] self.ways = []
for i in range(numways): for i in range(numways):
self.ways.append([]) self.ways.append([])
for j in range(numsets): for _ in range(numsets):
self.ways[i].append(CacheLine()) self.ways[i].append(CacheLine())
self.pLRU = [] self.pLRU = []
@ -92,7 +93,8 @@ class Cache:
line = self.ways[waynum][setnum] line = self.ways[waynum][setnum]
if line.tag == tag and line.valid: if line.tag == tag and line.valid:
line.dirty = 0 line.dirty = 0
if invalidate: line.valid = 0 if invalidate:
line.valid = 0
# invalidates the cache by setting all valid bits to False # invalidates the cache by setting all valid bits to False
def invalidate(self): def invalidate(self):
@ -103,7 +105,7 @@ class Cache:
# resets the pLRU to a fresh 2-D array of 0s # resets the pLRU to a fresh 2-D array of 0s
def clear_pLRU(self): def clear_pLRU(self):
self.pLRU = [] self.pLRU = []
for i in range(self.numsets): for _ in range(self.numsets):
self.pLRU.append([0]*(self.numways-1)) self.pLRU.append([0]*(self.numways-1))
# splits the given address into tag, set, and offset # splits the given address into tag, set, and offset
@ -158,7 +160,7 @@ class Cache:
tree = self.pLRU[setnum] tree = self.pLRU[setnum]
bottomrow = (self.numways - 1)//2 bottomrow = (self.numways - 1)//2
index = (waynum // 2) + bottomrow index = (waynum // 2) + bottomrow
tree[index] = int(not (waynum % 2)) tree[index] = int(not waynum % 2)
while index > 0: while index > 0:
parent = (index-1) // 2 parent = (index-1) // 2
tree[parent] = index % 2 tree[parent] = index % 2
@ -201,7 +203,7 @@ class Cache:
return self.__str__() return self.__str__()
def main(): def parseArgs():
parser = argparse.ArgumentParser(description="Simulates a L1 cache.") parser = argparse.ArgumentParser(description="Simulates a L1 cache.")
parser.add_argument('numlines', type=int, help="The number of lines per way (a power of 2)", metavar="L") parser.add_argument('numlines', type=int, help="The number of lines per way (a power of 2)", metavar="L")
parser.add_argument('numways', type=int, help="The number of ways (a power of 2)", metavar='W') parser.add_argument('numways', type=int, help="The number of ways (a power of 2)", metavar='W')
@ -211,8 +213,9 @@ def main():
parser.add_argument('-v', "--verbose", action='store_true', help="verbose/full-trace mode") parser.add_argument('-v', "--verbose", action='store_true', help="verbose/full-trace mode")
parser.add_argument('-p', "--perf", action='store_true', help="Report hit/miss ratio") parser.add_argument('-p', "--perf", action='store_true', help="Report hit/miss ratio")
parser.add_argument('-d', "--dist", action='store_true', help="Report distribution of operations") parser.add_argument('-d', "--dist", action='store_true', help="Report distribution of operations")
return parser.parse_args()
args = parser.parse_args() def main(args):
cache = Cache(args.numlines, args.numways, args.addrlen, args.taglen) cache = Cache(args.numlines, args.numways, args.addrlen, args.taglen)
extfile = os.path.expanduser(args.file) extfile = os.path.expanduser(args.file)
mismatches = 0 mismatches = 0
@ -227,7 +230,7 @@ def main():
atoms = 0 atoms = 0
totalops = 0 totalops = 0
with open(extfile, "r") as f: with open(extfile, "r", encoding="utf-8") as f:
for ln in f: for ln in f:
ln = ln.strip() ln = ln.strip()
lninfo = ln.split() lninfo = ln.split()
@ -257,7 +260,7 @@ def main():
IsCBOClean = lninfo[1] != 'C' IsCBOClean = lninfo[1] != 'C'
cache.cbo(addr, IsCBOClean) cache.cbo(addr, IsCBOClean)
if args.verbose: if args.verbose:
print(lninfo[1]); print(lninfo[1])
else: else:
addr = int(lninfo[0], 16) addr = int(lninfo[0], 16)
iswrite = lninfo[1] == 'W' or lninfo[1] == 'A' or lninfo[1] == 'Z' iswrite = lninfo[1] == 'W' or lninfo[1] == 'A' or lninfo[1] == 'Z'
@ -299,4 +302,5 @@ def main():
return mismatches return mismatches
if __name__ == '__main__': if __name__ == '__main__':
exit(main()) args = parseArgs()
sys.exit(main(args))