Last modified by wah on 2023/09/11 16:17
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1 |=(((
2
3 )))|=(((
4 KIELER SyncCharts
5 )))|=(((
6 YAKINDU SCT
7 )))|=(((
8
9 )))
10 |(% colspan="1" %)(% colspan="1" %)
11 (((
12 **Declarations**
13 )))|(% colspan="1" %)(% colspan="1" %)
14 (((
15 **Pure Signals**: signals have a present status:
16
17 * absent or present
18 * must be set for input signals
19 * computed for local and output signals:\\
20 ** for each tick absent by default unless signal is emitted
21 * Example:\\
22 ** Emit signal S: S
23 ** Test for presence: S
24
25 **Valued Signals**:
26
27 * are pure signals than additionally are able to store a value
28 * values are persistent across ticks
29 * Example:
30 ** Emit signal V with value 3: V(3)
31 ** Test for presence: V
32 ** Get the last emitted value of V: ?V
33 \\
34
35 (% style="color: rgb(0,0,0);" %)**Variables: **
36
37 * (% style="color: rgb(0,0,0);" %)Are not(%%) shared between concurrent regions
38 * Currently implemented by host type  variables
39 )))|(% colspan="1" %)(% colspan="1" %)
40 (((
41 **Events**:
42
43 * (% style="color: rgb(0,0,0);" %)interface scope: events can either be ingoing (in event event)(%%)
44 (% style="color: rgb(0,0,0);" %)or outgoing (out event event).
45 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)local scope: events are able to store a value.{{code language="none"}}internal: event localEvent : bool{{/code}}(%%)
46
47 {{{}}}
48
49 (% style="color: rgb(0,0,0);" %)**Variables:**
50
51 * variable:{{code language="none"}}var variable: string{{/code}}
52
53 {{{}}}(% style="color: rgb(0,0,0);" %)** **
54 * read-only variable:{{code language="none"}}var readonly size: int = 10 {{/code}}
55
56 {{{}}}
57 * external variable: can be referenced by the environment
58 {{code language="none"}}var external variable: int = 44External variables are not used at the moment.{{/code}}
59
60 {{{}}}
61 )))|(% colspan="1" %)(% colspan="1" %)
62 (((
63
64 )))
65 |(((
66 **Types**
67 )))|(((
68 * **int**
69 * **bool**
70 * **string**
71 \\
72 * **pure**: only makes sense for Signals. Signals are absent or present.
73 * **unsigned**
74 * **float**
75 * **double**
76 * **host: **no actual type is given. The given type in the hostType attribute is used.
77 )))|(((
78 * **integer**
79 * **boolean **
80 * **string**
81 \\
82 * **real**
83 * **void**
84 New types are going to be added. A type system abstraction is present.
85 \\
86 )))|(((
87
88 )))
89 |(((
90 **Expressions**
91 )))|(((
92 * **Logical AND:** var1 && var2
93 * **Logical OR:** var1 || var2
94 * **Logical NOT:** !var1
95
96
97 {{{(A and B) or ((not C) and D) }}}
98 )))|(((
99 * **Logical AND:** var1 && var2
100 * **Logical OR:** var1 || var2
101 * **Logical NOT:** !var1
102 * **Conditional Expression:** var1 ? var2 : var3
103 )))|(((
104
105 )))
106 |(((
107 **Operations**
108 )))|(((
109 * **Equal**: '='
110 * (% style="color: rgb(0,0,0);" %)**Less Than**(%%)**: '**<'
111 * (% style="color: rgb(0,0,0);" %)**Equal Or Less Than**(%%)**: '**<='
112 * (% style="color: rgb(0,0,0);" %)**Greater Than**(%%)**:** '>'
113 * (% style="color: rgb(0,0,0);" %)**Equal Or Greater Than**(%%)**:** '>='
114 * **NOT: '**!='
115 * **Add**: '+'
116 * **Minus** : '-'
117 * **Multiply**: '*'
118 * **Divide**: '/'
119 * **Modulo**: 'mod'
120 * **Value**: '?'
121
122 {{{?B = 3}}}(((
123
124 )))
125 * **PRE**: 'pre':
126
127 {{{pre(S):gives the presence status of S at}}}
128
129 {{{the previous tick. }}}
130
131 {{{pre(?S):returns the value of S at the}}}
132
133 {{{previous tick.}}}
134 * **NE**: '<>'
135 )))|(((
136 * **Equal**: '=='
137 * **less than:** '<'
138 * **Equal Or Less Than**: '<='
139 * **Greater Than**: '>'
140 * **Equal Or Greater Than** '>='
141 * **Not Equal:** '!='
142 * **Plus:** '+'
143 * **Minus:** '-'
144 * **Multiply:** '*'
145 * **Divide:** '/'
146 * **Modulo:** '%'
147 * **valueof()**
148 **\\**
149 * **Shift Left**: '<<'
150 * **Shift Right**: '>>'
151 * **Positive: '**+'
152 * **Negative: '**-'
153 * **Complement: **'~~'
154 )))|(((
155
156 )))
157 |(% colspan="1" %)(% colspan="1" %)
158 (((
159 **Trigger**
160 )))|(% colspan="1" %)(% colspan="1" %)
161 (((
162 * Simple signal reference: I / O
163 * Boolean expression: 
164
165 {{{(A and B) or ((not C) and D)}}}
166 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Valued Signals and Variables can be used in conditions in these boolean expressions(% style="color: rgb(0,0,0);" %)
167
168 {{{variable &#x3e; 1}}}
169
170 {{{?A = 1}}}
171 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Comparison(% style="color: rgb(0,0,0);" %)
172
173 {{{?A &#x3e; (variable + 1)}}}
174
175 {{{A and (3 &#x3e; ?B) or ((var5 + 2) = 6)}}}
176 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Pre
177
178 {{{A and pre(B)}}}
179
180 {{{3 &#x3c; pre(?A)}}}
181 * (((
182 Immediate, #S: the trigger is satisfied as soon as the state is entered..
183 )))
184 * (((
185 Count Delays, 3 S
186
187 {{{ }}}
188 )))
189 * (((
190 Time in SyncCharts: Multiform notion of time,
191 e.g., signal SECOND appears every second (depending on the physical tick length).
192
193
194 )))
195 )))|(% colspan="1" %)(% colspan="1" %)
196 (((
197 * **event:**
198 {{code language="none"}}I / raise O{{/code}}
199
200 {{{}}}
201 * **after**:{{code language="none"}}after 20 s{{/code}}
202
203 {{{}}}
204 * **every**{{code language="none"}}every 200 ms{{/code}}
205
206 {{{}}}
207 * **always: **
208 (% style="color: rgb(0,0,0);" %)enables a reaction to be executed in every run to completion step
209 * (% style="color: rgb(0,0,0);" %)**default: **(%%)
210 (% style="color: rgb(0,0,0);" %)enables a reaction to be executed in every run to completion step
211 * (% style="color: rgb(0,0,0);" %)**else**: (%%)
212 (% style="color: rgb(0,0,0);" %)used in transitions and implies the lowest evaluation priority for that transition.
213 * (% style="color: rgb(0,0,0);" %)**entry**
214 * (% style="color: rgb(0,0,0);" %)**exit**
215 * (% style="color: rgb(0,0,0);" %)**oncycle**(%%) 
216 {{code language="none"}}{{/code}}
217
218 {{{}}}
219 )))|(% colspan="1" %)(% colspan="1" %)
220 (((
221
222 )))
223 |(% colspan="1" %)(% colspan="1" %)
224 (((
225 **Effects**
226 )))|(% colspan="1" %)(% colspan="1" %)
227 (((
228 * Emission of a simple signal
229
230 {{{/ A}}}
231 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Emission of value of a valued Signal
232
233 {{{/ A(3)}}}
234 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Assignment of a variable(% style="color: rgb(0,0,0);" %)
235
236 {{{/ varA := 42}}}
237 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)Multiple effects get comma- or whitespace separated(% style="color: rgb(0,0,0);" %)
238
239 {{{/ A, B, C(25), varA := 2}}}
240 * (% style="color: rgb(0, 0, 0); color: rgb(0, 0, 0); color: rgb(0, 0, 0)" %)New values may use value expressions as explained above
241
242 {{{/ A(3 + pre(?B)), varC := (varD + 1)}}}
243 )))|(% colspan="1" %)(% colspan="1" %)
244 (((
245 * **Assignment of a variable:** S / varA = 5
246 * **raise** myvar
247 * **myvar = valueof(event)**: (% style="color: rgb(0,0,0);" %)Returns the value of an valued event(%%)
248 (% style="color: rgb(0,0,0);" %) that it passed to the function as parameter.
249 * **mybool = active(StateA)**: (% style="color: rgb(0,0,0);" %)Returns „true” if a state is active or „false” otherwise.
250 )))|(% colspan="1" %)(% colspan="1" %)
251 (((
252
253 )))
254
255
256 \\

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