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annotate analyze_olp.py @ 915:9e882eca717e

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Initial support for relative mouse mode and skeleton of support for capture mode. Avoid mouse position overflow in absolute mode. Allow absolute mode to be set by ROM DB.
author Michael Pavone <pavone@retrodev.com>
date Tue, 15 Dec 2015 20:01:50 -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)