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Python

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# OP Environment
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import math
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import cocotb
from cocotb.triggers import Timer
from cocotb.handle import Force
from cocotb.handle import Release
from dotmap import DotMap
# ------------------------------------------------------------------------------------------------
# Classes
class Sim(DotMap):
def msg(self, m):
self.dut._log.info(f'[{self.cycle:08d}] {m}') #wtf do multiline if /n in m
def __init__(self, dut, cfg=None):
super().__init__()
self.dut = dut
self.resetDone = False
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# defaults
self.memFiles = ['../mem/boot_ieq1.bin.hex'] #wtf cmdline parm
self.threads = None
self.resetCycle = 10
self.hbCycles = 100
self.clk2x = True
self.clk4x = False
self.resetAddr = 0xFFFFFFFC
self.resetOp = 0x48000002
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self.maxCycles = 500
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self.memFiles = None
self.config = DotMap()
# these should be in a2 core class
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self.config.core = DotMap({
'creditsLd': None,
'creditsSt': None,
'creditsLdStSingle': None,
'lsDataForward' : None,
'cpcr4_sq_cnt' : None
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})
self.config.a2l2 = DotMap({
'badAddr': [('E0','E0', 'IRW')]
})
# json
if cfg is not None:
pass
# runtime
self.cycle = 0
self.ok = True
self.fail = None
self.done = False
if self.threads is None:
try:
v = dut.an_ac_pm_thread_stop[1].value
self.threads = 2
except:
self.threads = 1
self.msg(f'Set threads={self.threads}.')
# helpers
# wtf: assertFail doesn't work??#@#!!
def safeint(self, v, n=10, assertFail=True, rc=False):
try:
res = int(v, n)
ok = True
except:
self.ok = False
self.fail = f'Bad integer conversion: {v},{n}'
if assertFail:
assert(False, self.fail)
res = 0
ok = False
if rc:
return (ok, res)
else:
return res
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class TransQ(DotMap):
def __init__(self):
super().__init__()
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# could allow registering callback for loads and/or stores in range
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class Memory(DotMap):
def __init__(self, sim, default=0, logReads=False, logStores=True):
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super().__init__()
self.sim = sim
self.data = {}
self.le = False
self.default = default # default word data for unloaded
self.logReads = logReads
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self.logStores = logStores
def loadFile(self, filename, format='ascii', addr=0, le=0):
# format # binary, ascii, ascii w/addr
# le: reverse bytes
try:
if format == 'ascii':
with open(filename, 'r') as f:
lines = f.readlines()
for line in lines:
self.data[addr] = int(line, 16) # key is int
addr += 4
elif format == 'binary':
pass
elif format == 'addrdata':
pass
except Exception as e:
self.sim.msg(f'Error reading {filename}:\n{e}')
raise IOError
# word-aligned byte address
def read(self, addr):
try:
addr = addr + 0
except:
addr = int(addr, 16)
if self.logReads:
if addr not in self.data:
self.sim.msg(f'Mem Read: @{addr:08X} XXXXXXXX')
else:
self.sim.msg(f'Mem Read: @{addr:08X} {self.data[addr]:08X}')
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if addr in self.data:
return self.data[addr]
else:
return self.default
# word-aligned byte address + data
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def write(self, addr, data, be=None):
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try:
addr = addr + 0
except:
addr = int(addr, 16)
try:
data = data + 0
except:
data = int(data, 16)
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if be is not None:
try:
be = be + 0
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be = f'{be:04b}'
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except:
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pass
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if be == '0000':
return
mask = 0
for i in range(4):
mask = mask << 8
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if be[i] == '1':
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mask += 0xFF
data = (self.read(addr) & ~mask) | (data & mask)
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if self.logStores:
if addr not in self.data:
self.sim.msg(f'Mem Update: @{addr:08X} XXXXXXXX->{data:08X}')
else:
self.sim.msg(f'Mem Update: @{addr:08X} {self.data[addr]:08X}->{data:08X}')
self.data[addr] = data
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def dump(self, start, end, cols=4, ascii=True, trimLeadingZeros=False, trimTrailingZeros=False):
#wtf check for start>end and do in reverse
#wtf trimTrailingZeros
# word-align
wordstart = (start >> 2) << 2
wordend = (end >> 2) << 2
# column align (handles powers of 2)
c = int(math.log2(cols))
# address of column 0 of first line
linestart = (wordstart >> 2 >> c) << c << 2
# column of wordstart
colstart = (wordstart>>2) - (linestart>>2)
# word address
word = wordstart>>2
text = ''
row = ''
rowTransDict = {}
for i in range(32):
rowTransDict[i] = '.'
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for i in range(127, 256):
rowTransDict[i] = '.'
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# first line may be unaligned by row
zeros = True
if colstart != 0:
textRow += f'{linestart:08X}: '
for i in range(colstart):
textRow += f'{"":8s} '
row += f'{"":8s} '
for i in range(colstart, cols):
v = f'{self.read(word<<2):08X}'
textRow += v + ' '
if v != '00000000':
zeros = False
row += v
word +=1
rowb = bytearray.fromhex(row)
rowb = rowb.decode('iso-8859-1').translate(rowTransDict)
textRow += (' ' + rowb) if ascii else ''
textRow += '\n'
if not trimLeadingZeros or not zeros:
text += textRow
lastword = wordend >> 2
while (word <= lastword):
textRow = f'{word<<2:08X}: '
row = ''
for j in range(cols):
v = f'{self.read(word<<2):08X}'
textRow += v + ' '
if v != '00000000':
zeros = False
row += v
word += 1
if (word > lastword):
break
rowb = bytearray.fromhex(row)
rowb = rowb.decode('iso-8859-1').translate(rowTransDict)
textRow += (' ' + rowb) if ascii else ''
textRow += '\n'
if not trimLeadingZeros or not zeros:
text += textRow
return text
# ------------------------------------------------------------------------------------------------
# Functions
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# the zero char pad should be based on pad value; currently 64 max
def hex(n, pad=0):
if pad:
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return f'0000000000000000000000000000000000000000000000000000000000000000{n.value.hex()[2:].upper()}'[-pad:]
else:
return n.value.hex()[2:].upper()