Timer and Counter Instructions
Chapter 5
522
Table 5.E
Average
Execution T
imes for W
ordT
oFile, Sequencers, W
ord and Bit
Shifts, File Diagnostic, File Search and Block T
ransfer Instructions
Average Execution Time in Microseconds
Instruction
False
True
WordToFile Move
FileToWord Move
WordToFile AND, OR, XOR
<1
<1
<1
48
49
75
Sequencer Load
Sequencer In
Sequencer Out
17
<1
17
60 + (27.8 x # words/step)
58 + (40 x # words/step)
63 + (37 x # words/step)
Fifo Unload
Fifo Load
16.4
16.4
62
64
Shift File Down
Shift File Up
17
17
107 + (7.4 x # words in file)
112 + (7 x # words in file)
Examine ON (or OFF) Shift Reg. Bit
Set (or Reset) Shift Reg. Bit
Bit Shift Left
Bit Shift Right
<1
<1
19.2
19.2
47
45
64 + (8.2 x # words in file)
73 + (7.8 x # words in file)
File Search
File Diagnostic
10.8
27.0
68 +
2
120 +
3
Block Transfer Read
Block Transfer Write
19.0
19.0
19.0
19.0
1
Execution T
ime depends on: a) length of files and, b) number of words/step. Section
5.6.2.
2 Execution T
ime is increased by 4.6 x the number of words searched before a match is found. Section
5.6.2.
3 Execution T
ime is increased by 7.6 x the number of words scanned before an error is found. Section
5.6.2.
Table 5.F presents average instruction execution times for File-to-File
move and File Complement instructions for the distributed complete,
complete and incremental modes. The mode depends upon the value of
R (the words or rate per scan — see Chapter 12).
The execution time equation for the distributed complete mode in
microseconds is:
T = 85 + (6.8 x number of words operated upon per scan) + 14.4
(number of full 256 word blocks operated upon per scan).
The execution time equation in microseconds for the complete mode is:
T = 67.2 + (6.8 x number of words operated upon per scan) + 14.4
(number of full 256 word blocks operated upon per scan).
5.6.3
FiletoFile
Move and File
Complement
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