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annotate analyze_olp.py @ 572:0f32f52fc98e

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Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
author Michael Pavone <pavone@retrodev.com>
date Mon, 03 Mar 2014 21:08:43 -0800
parents be9c7b3e25ee
children b290343e5664
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1 #!/usr/bin/env python
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2
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3 from zipfile import ZipFile
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4 from sys import exit, argv
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5
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6 def detect_rise(last, sample, bit):
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7 mask = 1 << bit
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8 return (not last & mask) and (sample & mask)
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9
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10 def detect_fall(last, sample, bit):
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11 mask = 1 << bit
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12 return (last & mask) and (not sample & mask)
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13
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14 def detect_high(sample, bit):
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15 mask = 1 << bit
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16 return sample & mask
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17
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18 def detect_low(sample, bit):
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19 mask = 1 << bit
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20 return not sample & mask
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21
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22 def analyze_delays(chanmap, datafile):
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23 m68k_clk = chanmap['M68K CLK']
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24 m_as = chanmap['!AS']
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25 last = False
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26 clks = 0
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27 as_start = 0
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28 for line in datafile.readlines():
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29 line = line.strip()
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30 if line and not line.startswith(';'):
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31 sample,_,num = line.partition('@')
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32 sample = int(sample, 16)
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33 if not (last is False):
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34 if detect_rise(last, sample, m68k_clk):
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35 clks = clks + 1
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36 if detect_rise(last, sample, m_as):
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37 as_clks = clks - as_start
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38 if as_clks > 2:
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39 print '!AS held for', as_clks, 'cycles starting (delay of ' + str(as_clks - 2) + ') at', as_start, 'and ending at', clks
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40 elif detect_fall(last, sample, m_as):
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41 as_start = clks
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42 last = sample
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43
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44 def main(args):
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45 if len(args) < 2:
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46 print 'Usage: analyze_olp.py filename'
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47 exit(1)
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48 olpfile = ZipFile(args[1], "r")
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49 channelfile = olpfile.open('channel.labels')
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50 channels = [line.strip() for line in channelfile.readlines()]
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51 channelfile.close()
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52 chanmap = {}
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53 for i in xrange(0, len(channels)):
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54 chanmap[channels[i]] = i
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55 datafile = olpfile.open('data.ols')
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56 analyze_delays(chanmap, datafile)
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57
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58
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59 if __name__ == '__main__':
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60 main(argv)