ticks.py (13431:40bbea43ddf7) ticks.py (13663:9b64aeabf9a5)
1# Copyright (c) 2007 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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42
43 if isinstance(ticksPerSecond, (int, long)):
44 tps = ticksPerSecond
45 elif isinstance(ticksPerSecond, float):
46 tps = ticksPerSecond
47 elif isinstance(ticksPerSecond, str):
48 tps = round(convert.anyToFrequency(ticksPerSecond))
49 else:
1# Copyright (c) 2007 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

--- 33 unchanged lines hidden (view full) ---

42
43 if isinstance(ticksPerSecond, (int, long)):
44 tps = ticksPerSecond
45 elif isinstance(ticksPerSecond, float):
46 tps = ticksPerSecond
47 elif isinstance(ticksPerSecond, str):
48 tps = round(convert.anyToFrequency(ticksPerSecond))
49 else:
50 raise TypeError, \
51 "wrong type '%s' for ticksPerSecond" % type(ticksPerSecond)
50 raise TypeError(
51 "wrong type '%s' for ticksPerSecond" % type(ticksPerSecond))
52 _m5.core.setClockFrequency(int(tps))
53
54# how big does a rounding error need to be before we warn about it?
55frequency_tolerance = 0.001 # 0.1%
56
57def fromSeconds(value):
58 import _m5.core
59
60 if not isinstance(value, float):
52 _m5.core.setClockFrequency(int(tps))
53
54# how big does a rounding error need to be before we warn about it?
55frequency_tolerance = 0.001 # 0.1%
56
57def fromSeconds(value):
58 import _m5.core
59
60 if not isinstance(value, float):
61 raise TypeError, "can't convert '%s' to type tick" % type(value)
61 raise TypeError("can't convert '%s' to type tick" % type(value))
62
63 # once someone needs to convert to seconds, the global frequency
64 # had better be fixed
65 if not _m5.core.clockFrequencyFixed():
62
63 # once someone needs to convert to seconds, the global frequency
64 # had better be fixed
65 if not _m5.core.clockFrequencyFixed():
66 raise AttributeError, \
67 "In order to do conversions, the global frequency must be fixed"
66 raise AttributeError(
67 "In order to do conversions, the global frequency must be fixed")
68
69 if value == 0:
70 return 0
71
72 # convert the value from time to ticks
73 value *= _m5.core.getClockFrequency()
74
75 int_value = int(round(value))
76 err = (value - int_value) / value
77 if err > frequency_tolerance:
78 warn("rounding error > tolerance\n %f rounded to %d", value,
79 int_value)
80 return int_value
81
82__all__ = [ 'setGlobalFrequency', 'fixGlobalFrequency', 'fromSeconds',
83 'frequency_tolerance' ]
68
69 if value == 0:
70 return 0
71
72 # convert the value from time to ticks
73 value *= _m5.core.getClockFrequency()
74
75 int_value = int(round(value))
76 err = (value - int_value) / value
77 if err > frequency_tolerance:
78 warn("rounding error > tolerance\n %f rounded to %d", value,
79 int_value)
80 return int_value
81
82__all__ = [ 'setGlobalFrequency', 'fixGlobalFrequency', 'fromSeconds',
83 'frequency_tolerance' ]