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AN910 Datasheet(PDF) 22 Page - STMicroelectronics

Part # AN910
Description  ST7 AND ST9 PERFORMANCE BENCHMARKING
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN910 Datasheet(HTML) 22 Page - STMicroelectronics

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ST7 AND ST9 PERFORMANCE BENCHMARKING
Table 5. Computing performance execution time measures
(1) The 80C51 results are preliminary results. They may changed in later versions.
Table 6. Computing performance execution time ratios
Execution time
measures (ms)
80C51XA
(20 MHz)
68HC16
(16 MHz)
68HC12
(8 MHz)
ST9+
(25 MHz)
ST9
(12 MHz)
H8/300
(10 MHz)
68HC11
(4 MHz)
68HC08
(8 MHz)
ST7
(8 MHz)
ST7
(4 MHz)
80C51(1)
(20 MHz)
1
sieve
▲
25.1
27.8
47.5
41.4
142
147
2
acker(3,5)
▲
148
224
230
268
868
916
950
3
acker(3,6)
▲
602
920
936
1,090
3,530
3,720
3,850
4
string
0.178
0.157
▲
0.15
0.160
0.514
0.369
0.54
0.264
0.345
0.690
▼
1.17
5
char
0.042
0.039
▲ 0.037
0.048
0.149
0.071
0.140
0.039
0.0070
0.140
0.142
6
bubble(10 words)
▲ 0.170
0.223
0.328
0.306
0.988
0.741
1.33
1.14
1.09
2.18
1.99
7
bubble(600 words)
▲
638
968
1,280
1,190
3,830
3,750
5,130
4,280
▼ 8,560
8
blkmov(64 bytes)
▲ 0.025
0.035
0.037
0.057
0.174
0.036
0.259
0.078
0.153
0.305
0.233
9
blkmov(512 bytes)
▲ 0.167
0.272
0.289
0.452
1.36
0.261
2.05
1.34
2.67
(8.61)
10
convert
▲ 0.146
0.227
0.288
0.223
0.766
0.397
0.82
0.265
0.452
0.904
0.584
11
16mul
0.0019
0.0017
▲ 0.0016
0.0068
0.020
0.012
0.029
0.013
0.018
0.037
0.035
12
shright
▲ 0.0013
0.0038
0.0046
0.0034
0.011
0.010
0.017
0.0072
0.010
0.020
▼ 0.031
13
bitsrt
▲ 0.047
0.050
0.055
0.059
0.178
0.071
0.215
0.086
0.092
0.183
0.203
Execution time
ratios
80C51XA
(20 MHz)
68HC16
(16 MHz)
68HC12
(8 MHz)
ST9+
(25 MHz)
ST9
(12 MHz)
H8/300
(10 MHz)
68HC11
(4 MHz)
68HC08
(8 MHz)
ST7
(8 MHz)
ST7
(4 MHz)
80C51(1)
(20 MHz)
1
sieve
▲
1.65
1.49
0.87
1.00
0.29
0.28
2
acker(3,5)
▲
1.81
1.20
1.16
1.00
0.31
0.29
0.28
3
acker(3,6)
▲
1.81
1.18
1.16
1.00
0.31
0.29
0.28
4
string
0.90
1.02
▲
1.05
1.00
0.31
0.43
0.30
0.61
0.46
0.23
▼
0.14
5
char
1.14
1.23
▲
1.28
1.00
0.32
0.67
0.34
1.23
0.68
0.34
0.34
6
bubble(10 words)
▲
1.80
1.37
0.93
1.00
0.31
0.41
0.23
0.27
0.28
0.14
0.15
7
bubble(600 words)
▲
1.87
1.23
0.93
1.00
0.31
0.32
0.23
0.28
▼
0.14
8
blkmov(64 bytes)
▲
2.30
1.65
1.56
1.00
0.33
1.57
0.22
0.74
0.38
0.19
0.25
9
blkmov(512 bytes)
▲
2.71
1.66
1.56
1.00
0.33
1.73
0.22
0.34
0.17
(0.052)
10
convert
▲
1.54
0.98
0.78
1.00
0.29
0.56
0.27
0.84
0.49
0.25
0.38
11
16mul
3.60
3.92
▲
4.22
1.00
0.35
0.56
0.23
0.52
0.37
0.19
0.20
12
shright
▲
2.67
0.92
0.75
1.00
0.30
0.35
0.20
0.48
0.34
0.17
▼ 0.11
13
bitsrt
▲
1.25
1.18
1.08
1.00
0.33
0.83
0.27
0.69
0.65
0.32
0.29



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