Anonymous user
Execute Brain****: Difference between revisions
no edit summary
No edit summary |
|||
Line 2,562:
[[/Lua|Implementation in Lua]].
=={{header|M2000 Interpreter}}==
<lang M2000 Interpreter>
Module Checkit {
\\ Brain**** Compiler
Escape Off
\\ no Esc function so we can use Ctrl+Z when input characters to terminate BF
\\ ctrl+c open dialog for exit - by default in console mode
Const skipmonitor as boolean=true, ouput as boolean=True
Const ob$="{",cb$="}"
Gosub CallOne
\\ We use a group object with events.
Group WithEvents BF=BrainF()
Function BF_monitor {
\\ Event functions have same scope as the module where belong
If skipmonitor Then exit
Read New pc, mem
Print pc, mem
Print "Press space bar": While Key$<>" " {}
}
Function BF_newline {
If not skipmonitor then Print "newline" : exit
if output then Print
}
Function BF_print {
Read New c$
If not skipmonitor then Print "character:";c$ : exit
Print c$;
}
Program$ = {++++++[>++++++++++++<-]>.
>++++++++++[>++++++++++<-]>+.
+++++++..+++.>++++[>+++++++++++<-]>.
<+++[>----<-]>.<<<<<+++[>+++++<-]>.
>>.+++.------.--------.>>+.
}
Report Program$
ExecBF(Program$)
End
Sub ExecBF(Code$)
ClearMem()
code$=filter$(code$, " "+chr$(10)+chr$(13))
code$<=replace$(".","@", code$)
code$<=replace$("-","-.D()", code$)
code$<=replace$("+","-.A()", code$)
code$<=replace$("<","-.L()", code$)
code$<=replace$(">","-.R()", code$)
code$<=replace$("@","-.P()", code$)
code$<=replace$("[","-.S("+ob$,code$)
code$<=replace$("]",cb$+")",code$)
code$<=replace$(",","-.K()", code$)
Rem : Print code$
BF.Eval code$
Print
End Sub
Sub ClearMem()
Dim cMem(1 to 30000)=0
For BF {
.Pc=1
.Zero=True
.Mem()=cMem()
}
End Sub
CallOne:
Class BrainF {
events "monitor", "newline", "print"
Dim Mem()
Pc=1, Zero as Boolean=True
Module UpdateZero {
.Zero<=.Mem(.Pc)=0
call event "monitor", .pc, .Mem(.pc)
}
Function A { \\ +
.Mem(.Pc)++
.UpdateZero
}
Function D { \\ -
.Mem(.Pc)--
.UpdateZero
}
Function R { \\ >
If .Pc=30000 Then Error "Upper Bound Error"
.Pc++
.UpdateZero
}
Function L { \\ <
If .Pc=1 Then Error "Lower Bound Error"
.Pc--
.UpdateZero
}
Function P { \\ .
Select Case .Mem(.Pc)
Case 13
Call Event "newline"
Case >31
Call Event "print", Chr$(.Mem(.Pc))
End Select
}
Function K { \\ ,
.Mem(.Pc)=Asc(Key$)
\\ ctrl+z for exit
If .Mem(.Pc)=26 Then Error "Finished"
.UpdateZero
}
Function S { \\ [
If .Zero then =0: exit
Read newEval$
Do {ret=Eval(newEval$)} until .Zero
}
Module Eval {
ret=eval(Letter$)
}
}
Return
}
Checkit
</lang>
=={{header|Mathematica}} / {{header|Wolfram Language}}==
| |||