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basic: function plotter update

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minjaesong
2020-12-23 19:40:45 +09:00
parent f1b046bd13
commit db8ca2d8ed
3 changed files with 31 additions and 13 deletions
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6
assets/basic.js
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@@ -2617,8 +2617,8 @@ bF._troNOP = function(lnum, stmtnum) { return new SyntaxTreeReturnObj("null", un
bF._executeSyntaxTree = function(lnum, stmtnum, syntaxTree, recDepth) { bF._executeSyntaxTree = function(lnum, stmtnum, syntaxTree, recDepth) {
if (lnum === undefined || stmtnum === undefined) throw Error(`Line or statement number is undefined: (${lnum},${stmtnum})`); if (lnum === undefined || stmtnum === undefined) throw Error(`Line or statement number is undefined: (${lnum},${stmtnum})`);
let _debugExec = true; let _debugExec = false;
let _debugPrintCurrentLine = true; let _debugPrintCurrentLine = false;
let recWedge = ">".repeat(recDepth) + " "; let recWedge = ">".repeat(recDepth) + " ";
if (_debugExec || _debugPrintCurrentLine) serial.println(recWedge+"@@ EXECUTE @@"); if (_debugExec || _debugPrintCurrentLine) serial.println(recWedge+"@@ EXECUTE @@");
@@ -2870,7 +2870,7 @@ bF._executeAndGet = function(lnum, stmtnum, syntaxTree) {
try { try {
var execResult = bF._executeSyntaxTree(lnum, stmtnum, syntaxTree, 0); var execResult = bF._executeSyntaxTree(lnum, stmtnum, syntaxTree, 0);
if (bF.parserDoDebugPrint) serial.println(`Line ${lnum} TRO: ${Object.entries(execResult)}`); if (DBGON) serial.println(`Line ${lnum} TRO: ${Object.entries(execResult)}`);
return execResult.troNextLine; return execResult.troNextLine;
} }

21
assets/sinc1.bas
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@@ -1,17 +1,18 @@
1 GOTO 1000 1 ZEROLINE=10
2 AMP=20
3 GOTO 1000
100 LABEL SINCQ:REM gets Sinc(Q) 100 LABEL SINCQ:REM gets Sinc(Q)
110 Q=SIN(I)/I 110 Q=IF I==0 THEN 1.0 ELSE SIN(I)/I
120 RETURN 120 RETURN
200 LABEL TOSPC 200 LABEL PLOTLINE:REM Converts 0-1 value into screen line
201 REM Converts 0-1 value into screen line 201 REM input is Q, results are stored to SQ
202 REM input is Q, results are stored to SQ 210 SQ=CHR(0)
210 SQ="I":REM currently empty string literals can't be used because of bug 220 FOR X=1 TO ZEROLINE+AMP
220 FOR X=1 TO 10 MAX 10+Q*20 230 SQ=SQ+(IF X==ROUND(ZEROLINE+Q*AMP) THEN "@" ELSE IF X==10 THEN "|" ELSE CHR(250))
230 SQ=SQ+(IF X==FIX(10+Q*20) THEN "@" ELSE IF X==10 THEN ":" ELSE " ")
240 NEXT 240 NEXT
250 RETURN 250 RETURN
1000 FOR I=1 TO 20 1000 FOR I=0 TO 20
1010 GOSUB SINCQ 1010 GOSUB SINCQ
1020 GOSUB TOSPC 1020 GOSUB PLOTLINE
1030 PRINT(SQ) 1030 PRINT(SQ)
1040 NEXT 1040 NEXT

17
assets/sinc2.bas Normal file
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@@ -0,0 +1,17 @@
1 ZEROLINE=10
2 AMP=20
10 DEFUN SINC(P)=IF P==0 THEN 1.0 ELSE SIN(P)/P
20 DEFUN TOCHAR(P,X)=IF (X==ROUND(ZEROLINE+P*AMP)) THEN "@" ELSE IF (X==ZEROLINE) THEN "|" ELSE CHR(250)
30 DEFUN SCONCAT(ACC,S)=ACC+S
40 DEFUN PLOTLINE(X)=FOLD(SCONCAT,CHR(0),MAP(TOCHAR<~X,1 TO ZEROLINE+AMP))
100 FOR I=0 TO 20
110 PRINT PLOTLINE(SINC(I))
120 NEXT
999 END
1000 REM Known bugs
1010 DEFUN PLOTLINE(F,X)=FOLD(SCONCAT,CHR(0),MAP(TOCHAR<~F(X),1 TO ZEROLINE+AMP))
1011 REM calling user-defined function within DEFUN is not working
1020 REM empty string literal "" is translated to number zero (another JS blunder)