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+---- Thread: Using the Debug feature (/showthread.php?tid=910)
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Using the Debug feature - PhilOfPerth - 09-22-2022
I am curious about the Debug function. I have set watch points and then run my programme - what next?
There is no output of results visible, and no message to say the Debug has operated. Should I get a file with run results, or what?
RE: Using the Debug feature - Pete - 09-23-2022
Fell developed the debugger feature, but sadly, when he dumped the project, and the .rip site, he also took a lot of his YouTube vids down; the debugger one included.
I tried it out last year, but never really got into using it. As fast as QB64 compiles, I just debug without it.
Possibly Steve, when he is feeling better, may have some experience with it he can share with you. After all, I know he must be constantly debugging his stuff all the time...
Pete
RE: Using the Debug feature - SpriggsySpriggs - 09-23-2022
You'll add the $DEBUG metacommand to the top of your code to turn on debugging. Then, while debugging is happening, it should show some text at the bottom of the IDE telling you how to control the execution of the code. The watchlist should show up as well.
RE: Using the Debug feature - mdijkens - 09-23-2022
I'm a big fan of the debug feature
Set breakpoints or stop command and run with F7 or F8.
Add watch variables with F4 during debugging.
Really helpful.
Now on holiday with only phone, but can maybe make a video about it later...
RE: Using the Debug feature - Pete - 09-23-2022
A vid would be nice to have up again. Also, I like the option to have the watch list sent to the console. Honestly the debug ability in QBasic was great, but that was interpreter. Still, QuickBASIC and PDS, which were QBasic with some added bells and whistles and the ability to make stand-alone exe files, could still be run in interpreter mode.
These days I just use a variable "betatest%" to show PRINT statements containing variables, values, and to help explain what is going on behind the scenes. If the betatest% variable is set, those print statements appear as the program runs and sleep when appropriate. If the variable is zero, no reporting is done during a program run.
Pete
RE: Using the Debug feature - mdijkens - 09-23-2022
Agreed.
What I still miss most compared to PDS is the possibility to select an expression in your code and add the expression to the watchlist
RE: Using the Debug feature - PhilOfPerth - 09-23-2022
I wasn't aware of the betatest% option, @Pete, but it sounds like what I do at the moment: when I find an unwanted result from my programme, I add a line at that point like "locate 22,1:print "A% is": a%;"b$ is ";b$ : sleep 2 which shows what those variables are at that point. I was hoping Debug would sort of allow this in a simpler way. The only useful part of Debug to me at present is the list of all variables that it provides.
@mdijkens I tried the f8 and f7 and f4 options, but couldn't get any meaningful results - the screen blanked, and then it seemed to be waiting for something, I don't know what!
RE: Using the Debug feature - Pete - 09-23-2022
(09-23-2022, 11:25 PM)PhilOfPerth Wrote: I wasn't aware of the betatest% option, @Pete, but it sounds like what I do at the moment: when I find an unwanted result from my programme, I add a line at that point like "locate 22,1:print "A% is": a%;"b$ is ";b$ : sleep 2 which shows what those variables are at that point. I was hoping Debug would sort of allow this in a simpler way. The only useful part of Debug to me at present is the list of all variables that it provides.
@mdijkens I tried the f8 and f7 and f4 options, but couldn't get any meaningful results - the screen blanked, and then it seemed to be waiting for something, I don't know what!
Here's an example of how I use my betatest% method in a square root string math example. Try it with betatest off and on.
Code: (Select All)
$CONSOLE:ONLY
'WIDTH 150, 42
DIM SHARED betatest%
DO
INPUT "Input 1 to betattest or 0 to run withut comments: "; i
IF i = 1 THEN betatest% = -1 ELSE betatest% = 0 ' betatest on/off.
LINE INPUT "Number to find the square root of: "; num$
PRINT sm_sqrt$(num$)
LOOP
FUNCTION sm_sqrt$ (sm_var$)
sqrt_a$ = sm_var$ ' Convert to prevent sm_var$ from being changed.
oldy$ = "": sqrt$ = "": k$ = "": z$ = ""
IF limit&& < 150 THEN custom_limit&& = 32 ELSE custom_limit&& = limit&&
IF INSTR(sqrt_a$, ".") THEN ' Number is a decimal.
decx$ = MID$(sqrt_a$, 1, INSTR(sqrt_a$, ".") - 1) ' Whole number portion of number.
sqrt_a$ = MID$(sqrt_a$, 1, INSTR(sqrt_a$, ".") - 1) + MID$(sqrt_a$, INSTR(sqrt_a$, ".") + 1) ' Remove decimal point, which converts deciaml to whole number number.
IF LEN(sqrt_a$) = 1 THEN sqrt_a$ = sqrt_a$ + "0"
ELSE
decx$ = sqrt_a$ ' Whole number.
END IF
h&& = LEN(decx$) ' The number of digits of the whole number (portion).
IF h&& / 2 = h&& \ 2 THEN i&& = 1 ELSE i&& = 0 ' 0 = Odd vs 1 = even number of digits in whole number (portion).
' Varible review:
' sqrt_a$ is the entire number with any decimal point removed.
' decx$ is the whole number (portion) of the number.
' h&& is number of digits in the whole number (portion).
' i&& index for parsing sqrt_a$ for drop-down division. If hh& is odd index starts at zero. Index at 1 if h&& is even.
' sqrt$ is the root answer per each iteration.
' custom_limit&& is the max. number of digits to evaluate the root number.
DO
IF betatest% < -1 THEN PRINT "Combine remainder ";: COLOR 12: PRINT sm_sub$(z$, k$);: COLOR 7: PRINT " with ";
z$ = sm_sub$(z$, k$) + (MID$(sqrt_a$, i&&, 2))
IF LEFT$(z$, 1) = "0" THEN z$ = MID$(z$, 2) ' Remove any leading zero.
IF betatest% < -1 THEN PRINT MID$(sqrt_a$, 1, i&& - 1);: COLOR 9: PRINT MID$(sqrt_a$, i&&, 2);: COLOR 7: PRINT MID$(sqrt_a$, i&& + 2); " and remove any leading zero to = ";: COLOR 6: PRINT z$;: COLOR 7: PRINT " as the target."
FOR j&& = 1 TO 10
IF i&& > 1 THEN
y$ = sm_mult$(sqrt$, "2") + LTRIM$(STR$(j&&))
COLOR 2: PRINT "y$ = (sqrt$ * 2 ~ j&& * J&&): "; sqrt$; " * 2 = "; sm_mult$(sqrt$, "2"); " ~"; j&&; "= "; y$; " *"; j&&; "= "; sm_mult$(y$, LTRIM$(STR$(j&&))): COLOR 7
ELSE
y$ = LTRIM$(STR$(j&&)) ' 1st loop starts here as there is no sqrt$ yet.
COLOR 2: PRINT "y$: j&& ="; j&&; "y$ is same as j&& = "; y$; " *"; j&&; " = "; sm_mult$(y$, LTRIM$(STR$(j&&))): COLOR 7
END IF
sm_greater_lesser sm_mult$(y$, LTRIM$(STR$(j&&))), z$, gl%
IF gl% > -1 THEN ' 0 = perfect square division. 1 = Too big so use the previous iteration.
IF gl% = 0 THEN
IF betatest% < -1 THEN PRINT "gl% ="; gl%; " Perfect square division. j&& =";: COLOR 14: PRINT j&&: COLOR 7
oldy$ = y$ ' Perfect square division. Not over, so do not subtract 1. j&& =";: COLOR 14: PRINT j&& - 1: COLOR 7
ELSE
IF betatest% < -1 THEN PRINT "gl% ="; gl%; " Estimate over target: "; sm_mult$(y$, LTRIM$(STR$(j&&))); " > "; z$; " so j&& =";: COLOR 14: PRINT j&& - 1: COLOR 7
j&& = j&& - 1 ' Adjusts size to the previous iteration.
END IF
IF STRING$(LEN(z$), "0") = z$ AND i&& >= h&& THEN
IF betatest% < -1 THEN PRINT "Checking for exit as z$ is null and i&&"; i&&; ">= h&&"; h&&; " so if oldy$ "; oldy$; " = zero then exit."
IF sm_mult$(oldy$, LTRIM$(STR$(j&&))) = "0" THEN EXIT DO
END IF
IF dpx&& = 0 THEN ' Decimal point relocator. Limited to && size unless converted to string.
IF i&& >= h&& THEN
dpx&& = INT(h&& / 2 + .5)
IF dpx&& = 0 THEN dpx&& = -1 ' Do not set to zero as -1 accomplishes the same thing and prevents ongoing loops here.
END IF
END IF
IF betatest% < -1 THEN PRINT "Sqrt combined with j&& * j&&: ";: temp$ = LTRIM$(STR$(VAL(MID$(sqrt$, 1, 1)))) + MID$(sqrt$, 2): PRINT temp$; " * 2 = "; LTRIM$(STR$(VAL(sqrt$) * 2));: COLOR 14: PRINT LTRIM$(STR$(j&&));: COLOR 7: PRINT " * ";: COLOR 14: PRINT LTRIM$(STR$(j&&));: COLOR 7: PRINT " =";: COLOR 5: PRINT VAL(oldy$) * j&&;: COLOR 7: PRINT " This is k$."
sqrt$ = sqrt$ + LTRIM$(STR$(j&&))
k$ = sm_mult$(oldy$, LTRIM$(STR$(j&&)))
IF betatest% < -1 THEN PRINT "Remainder ";: COLOR 6: PRINT z$;: COLOR 7: PRINT " - ";: COLOR 5: PRINT k$;: COLOR 7: PRINT " = ";: COLOR 12: PRINT sm_sub$(z$, k$): COLOR 7
EXIT FOR
END IF
oldy$ = y$
NEXT
oldy$ = ""
IF betatest% < -1 THEN PRINT "Increase index by 2 so i&& ="; i&& + 2
i&& = i&& + 2
IF betatest% <= -1 THEN IF LEN(z$) >= custom_limit&& THEN PRINT "Max. digits reached. Exiting..."
IF LEN(z$) >= custom_limit&& THEN EXIT DO
sqrt_a$ = sqrt_a$ + "00"
IF betatest% < -1 THEN PRINT "Multiply sqrt_a$ "; MID$(sqrt_a$, 1, LEN(sqrt_a$) - 2); " * 100 = "; sqrt_a$: SLEEP
LOOP
IF dpx&& THEN
sm_sqrt$ = MID$(sqrt$, 0, dpx&& + 1) + "." + MID$(sqrt$, dpx&& + 1)
ELSE
sm_sqrt$ = sqrt$
END IF
END FUNCTION
''----------------------------------------
SUB sm_greater_lesser (stringmatha$, stringmathb$, gl%)
compa$ = stringmatha$: compb$ = stringmathb$ ' So original variables do not get changed.
DO
WHILE -1 ' Falx loop.
IF gl% = 2 THEN EXIT WHILE ' For bypassing sign and decimal adjustments when only positive non-decimal numbers are being evaluated.
' Remove trailing zeros after a decimal point.
IF INSTR(compa$, ".") THEN
DO UNTIL RIGHT$(compa$, 1) <> "0" AND RIGHT$(compa$, 1) <> "." AND RIGHT$(compa$, 1) <> "-"
compa$ = MID$(compa$, 1, LEN(compa$) - 1)
LOOP
END IF
IF INSTR(compb$, ".") THEN
DO UNTIL RIGHT$(compb$, 1) <> "0" AND RIGHT$(compb$, 1) <> "." AND RIGHT$(compb$, 1) <> "-"
compb$ = MID$(compb$, 1, LEN(compb$) - 1)
LOOP
END IF
IF MID$(compa$, 1, 2) = "-0" OR compa$ = "" OR compa$ = "-" THEN compa$ = "0"
IF MID$(compb$, 1, 2) = "-0" OR compb$ = "" OR compb$ = "-" THEN compb$ = "0"
' A - and +
j% = 0: k% = 0
IF LEFT$(compa$, 1) = "-" THEN j% = -1
IF LEFT$(compb$, 1) = "-" THEN k% = -1
IF k% = 0 AND j% THEN gl% = -1: EXIT DO
IF j% = 0 AND k% THEN gl% = 1: EXIT DO
j&& = INSTR(compa$, ".")
k&& = INSTR(compb$, ".")
' A starting decimal and non-decimal.
IF j&& = 0 AND k&& = 1 THEN
IF compa$ = "0" THEN gl% = -1 ELSE gl% = 1
EXIT DO
END IF
IF k&& = 0 AND j&& = 1 THEN
IF compb$ = "0" THEN gl% = 1 ELSE gl% = -1
EXIT DO
END IF
' remove decimals and align.
j2&& = 0: k2&& = 0
IF j&& <> 0 OR k&& <> 0 THEN
IF j&& THEN compa$ = MID$(compa$, 1, INSTR(compa$, ".") - 1) + MID$(compa$, INSTR(compa$, ".") + 1): j2&& = LEN(compa$) - j&& + 1
IF k&& THEN compb$ = MID$(compb$, 1, INSTR(compb$, ".") - 1) + MID$(compb$, INSTR(compb$, ".") + 1): k2&& = LEN(compb$) - k&& + 1
compa$ = compa$ + STRING$(k2&& - j2&&, "0")
compb$ = compb$ + STRING$(j2&& - k2&&, "0")
END IF
EXIT WHILE
WEND
' Remove leading zeros if any.
DO UNTIL LEFT$(compa$, 1) <> "0"
compa$ = MID$(compa$, 2)
LOOP
IF compa$ = "" THEN compa$ = "0"
DO UNTIL LEFT$(compb$, 1) <> "0"
compb$ = MID$(compb$, 2)
LOOP
IF compb$ = "" THEN compb$ = "0"
' Both positive or both negative whole numbers.
SELECT CASE LEN(compa$)
CASE IS < LEN(compb$)
gl% = -1
CASE IS = LEN(compb$)
IF compa$ = compb$ THEN
gl% = 0
ELSEIF compa$ > compb$ THEN gl% = 1
ELSEIF compa$ < compb$ THEN gl% = -1
END IF
CASE IS > LEN(compb$)
gl% = 1
END SELECT
EXIT DO
LOOP
END SUB
SUB sm_add_subtract_router (stringmatha$, operator$, stringmathb$, runningtotal$)
DIM AS _INTEGER64 a, c, s
a1$ = stringmatha$: b1$ = stringmathb$
s = 18: i&& = 0: c = 0
a$ = stringmatha$: b$ = stringmathb$: op$ = operator$
IF op$ = "-" THEN
IF LEFT$(b$, 1) = "-" THEN b$ = MID$(b$, 2) ELSE b$ = "-" + b$
END IF
IF INSTR(a$, ".") <> 0 OR INSTR(b$, ".") <> 0 THEN
decimal% = -1
IF INSTR(a$, ".") <> 0 THEN
dec_a&& = LEN(MID$(a$, INSTR(a$, ".") + 1))
a$ = MID$(a$, 1, INSTR(a$, ".") - 1) + MID$(a$, INSTR(a$, ".") + 1)
END IF
IF INSTR(b$, ".") <> 0 THEN
dec_b&& = LEN(MID$(b$, INSTR(b$, ".") + 1))
b$ = MID$(b$, 1, INSTR(b$, ".") - 1) + MID$(b$, INSTR(b$, ".") + 1)
END IF
' Line up decimal places by inserting trailing zeros.
IF dec_b&& > dec_a&& THEN
j&& = dec_b&&
a$ = a$ + STRING$(dec_b&& - dec_a&&, "0")
ELSE
j&& = dec_a&&
b$ = b$ + STRING$(dec_a&& - dec_b&&, "0")
END IF
END IF
IF LEFT$(a$, 1) = "-" OR LEFT$(b$, 1) = "-" THEN
IF LEFT$(a$, 1) = "-" AND LEFT$(b$, 1) = "-" THEN
sign$ = "": a$ = MID$(a$, 2): b$ = MID$(b$, 2)
ELSE
IF LEFT$(a$, 1) = "-" THEN a$ = MID$(a$, 2): sign_a$ = "-"
IF LEFT$(b$, 1) = "-" THEN b$ = MID$(b$, 2): sign_b$ = "-"
IF LEFT$(a1$, 1) = "-" THEN a1_x$ = MID$(a1$, 2) ELSE a1_x$ = a1$
IF LEFT$(b1$, 1) = "-" THEN b1_x$ = MID$(b1$, 2) ELSE b1_x$ = b1$
sm_greater_lesser a1_x$, b1_x$, gl%
IF gl% < 0 THEN
IF LEN(sign_b$) THEN sign$ = "-": SWAP a$, b$
ELSE
IF LEN(sign_a$) THEN sign$ = "-": SWAP sign_a$, sign_b$
END IF
END IF
END IF
z$ = ""
' Addition and subtraction of digits.
DO
i&& = i&& + s
x1$ = MID$(a$, LEN(a$) - i&& + 1, s)
x2$ = MID$(b$, LEN(b$) - i&& + 1, s)
IF LEN(x2$) > LEN(x1$) THEN SWAP x1$, x2$
a = VAL(sign_a$ + x1$) + VAL(sign_b$ + x2$) + c
IF x1$ + x2$ = "" AND c = 0 THEN EXIT DO
c = 0
IF a > VAL(STRING$(s, "9")) THEN a = a - 10 ^ s: c = 1
IF a < 0 THEN a = a + 10 ^ s: c = -1 ' a will never be less than 0.
tmp$ = LTRIM$(STR$(a))
z$ = STRING$(LEN(x1$) - LEN(tmp$), "0") + tmp$ + z$
LOOP
IF decimal% THEN
z$ = MID$(z$, 1, LEN(z$) - j&&) + "." + MID$(z$, LEN(z$) - j&& + 1)
END IF
' Remove any leading zeros.
DO
IF LEFT$(z$, 1) = "0" THEN z$ = MID$(z$, 2) ELSE EXIT DO
LOOP
IF z$ = "" OR z$ = "0" THEN z$ = "0" ELSE z$ = LEFT$(sign$, 1) + z$
runningtotal$ = z$
sign$ = "": sign_a$ = "": sign_b$ = "": i&& = 0: j&& = 0: decimal% = 0: c = 0
END SUB
FUNCTION sm_add$ (stringmatha$, stringmathb$)
operator$ = "+"
sm_add_subtract_router stringmatha$, operator$, stringmathb$, runningtotal$
sm_add$ = runningtotal$
END FUNCTION
FUNCTION sm_sub$ (stringmatha$, stringmathb$)
operator$ = "-"
sm_add_subtract_router stringmatha$, operator$, stringmathb$, runningtotal$
sm_sub$ = runningtotal$
END FUNCTION
FUNCTION sm_mult$ (stringmatha$, stringmathb$)
DIM AS _INTEGER64 a, c, aa, cc, s, ss
z$ = "": sign$ = "": mult&& = 0: h&& = 0: i&& = 0: j&& = 0: c = 0: decimal% = 0
zz$ = "": ii&& = 0: jj&& = 0
s = 8: ss = 18
a$ = stringmatha$: b$ = stringmathb$
IF INSTR(a$, "-") <> 0 OR INSTR(b$, "-") <> 0 THEN
IF INSTR(a$, "-") <> 0 AND INSTR(b$, "-") <> 0 THEN
a$ = MID$(a$, 2): b$ = MID$(b$, 2)
ELSE
IF INSTR(a$, "-") <> 0 THEN a$ = MID$(a$, 2) ELSE b$ = MID$(b$, 2)
sign$ = "-"
END IF
END IF
IF INSTR(a$, ".") <> 0 OR INSTR(b$, ".") <> 0 THEN
decimal% = -1
IF INSTR(a$, ".") <> 0 THEN
dec_a&& = LEN(MID$(a$, INSTR(a$, ".") + 1))
a$ = MID$(a$, 1, INSTR(a$, ".") - 1) + MID$(a$, INSTR(a$, ".") + 1)
END IF
IF INSTR(b$, ".") <> 0 THEN
dec_b&& = LEN(MID$(b$, INSTR(b$, ".") + 1))
b$ = MID$(b$, 1, INSTR(b$, ".") - 1) + MID$(b$, INSTR(b$, ".") + 1)
END IF
END IF
IF LEN(a$) < LEN(b$) THEN SWAP a$, b$ ' Needed so x1$ is always the largest for leading zero replacements.
' Multiplication of digits.
DO
h&& = h&& + s: i&& = 0
x2$ = MID$(b$, LEN(b$) - h&& + 1, s)
DO
i&& = i&& + s
x1$ = MID$(a$, LEN(a$) - i&& + 1, s)
a = VAL(x1$) * VAL(x2$) + c
c = 0
tmp$ = LTRIM$(STR$(a))
IF LEN(tmp$) > s THEN c = VAL(MID$(tmp$, 1, LEN(tmp$) - s)): tmp$ = MID$(tmp$, LEN(tmp$) - s + 1)
z$ = STRING$(LEN(x1$) - LEN(tmp$), "0") + tmp$ + z$
LOOP UNTIL i&& >= LEN(a$) AND c = 0
jj&& = jj&& + 1
IF jj&& > 1 THEN
ii&& = 0: cc = 0
aa$ = holdaa$
bb$ = z$ + STRING$((jj&& - 1) * s, "0")
' Addition only of digits.
DO
ii&& = ii&& + ss
xx1$ = MID$(aa$, LEN(aa$) - ii&& + 1, ss)
xx2$ = MID$(bb$, LEN(bb$) - ii&& + 1, ss)
IF LEN(xx1$) < LEN(xx2$) THEN SWAP xx1$, xx2$
aa = VAL(xx1$) + VAL(xx2$) + cc
IF xx1$ + xx2$ = "" AND cc = 0 THEN EXIT DO ' Prevents leading zeros.
cc = 0
IF aa > VAL(STRING$(ss, "9")) THEN aa = aa - 10 ^ ss: cc = 1
tmp$ = LTRIM$(STR$(aa))
zz$ = STRING$(LEN(xx1$) - LEN(tmp$), "0") + tmp$ + zz$
LOOP
DO WHILE LEFT$(zz$, 1) = "0"
IF LEFT$(zz$, 1) = "0" THEN zz$ = MID$(zz$, 2)
LOOP
IF zz$ = "" THEN zz$ = "0"
holdaa$ = zz$
ELSE
holdaa$ = z$ + STRING$(jj&& - 1, "0")
END IF
z$ = "": zz$ = ""
LOOP UNTIL h&& >= LEN(b$)
z$ = holdaa$
IF decimal% THEN
DO UNTIL LEN(z$) >= dec_a&& + dec_b&&
z$ = "0" + z$
LOOP
z$ = MID$(z$, 0, LEN(z$) - (dec_a&& + dec_b&& - 1)) + "." + MID$(z$, LEN(z$) - (dec_a&& + dec_b&&) + 1)
DO UNTIL RIGHT$(z$, 1) <> "0" AND RIGHT$(z$, 1) <> "."
z$ = MID$(z$, 1, LEN(z$) - 1)
LOOP
END IF
IF STRING$(LEN(z$), "0") = z$ OR z$ = "" OR z$ = "0" THEN z$ = "0" ELSE z$ = sign$ + z$
decimal% = 0: sign$ = ""
runningtotal$ = z$
sm_mult$ = z$
END FUNCTION
FUNCTION sm_div$ (stringmatha$, stringmathb$)
hold_stringmatha$ = stringmatha$: hold_stringmathb$ = stringmathb$
q$ = "": divisor$ = stringmathb$: dividend$ = stringmatha$
DO ' Falx loop.
'Strip off neg(s) and determine quotent sign.
IF LEFT$(divisor$, 1) = "-" THEN divisor$ = MID$(divisor$, 2): q$ = "-"
IF LEFT$(dividend$, 1) = "-" THEN dividend$ = MID$(dividend$, 2): IF q$ = "-" THEN q$ = "" ELSE q$ = "-"
' Quick results for divisor 1 or 0.
IF dividend$ = "0" THEN q$ = "0": EXIT DO
IF divisor$ = "1" THEN q$ = dividend$: EXIT DO
IF divisor$ = "0" THEN q$ = "Division by zero not possible.": EXIT DO
' Determine decimal direction. -1 to left, +1 to right.
gl% = 0: sm_greater_lesser divisor$, dividend$, gl%
IF betatest% AND gl% = 1 THEN PRINT divisor$; " > "; dividend$; " Move decimal to the left"
IF betatest% AND gl% = 0 THEN PRINT divisor$; " = "; dividend$
IF betatest% AND gl% = -1 THEN PRINT divisor$; " < "; dividend$; " Move deciml to the right."
IF gl% = 1 THEN ' Divisor is larger than dividend so decimal moves to the left.
div_decimal% = -1 ' Move decimal point to the left.
ELSEIF gl% = -1 THEN
div_decimal% = 1 ' Move decimal point to the right.
ELSE
' Divisor and dividend are the same number.
q$ = q$ + "1": EXIT DO
END IF
divisor_ratio_dividend% = gl%
' Strip off decimal point(s) and determine places in these next 2 routines.
dp&& = 0: dp2&& = 0: j2&& = 0
temp&& = INSTR(divisor$, ".")
IF temp&& THEN
divisor$ = MID$(divisor$, 1, temp&& - 1) + MID$(divisor$, temp&& + 1)
IF temp&& = 1 THEN
DO UNTIL LEFT$(divisor$, 1) <> "0" ' Strip off any leading zeros on divisor only.
divisor$ = MID$(divisor$, 2)
dp&& = dp&& + 1
LOOP
dp&& = dp&& + 1
ELSE
dp&& = -(temp&& - 2)
END IF
ELSE
dp&& = -(LEN(divisor$) - 1)
END IF
temp&& = INSTR(dividend$, ".")
IF temp&& THEN
dividend$ = MID$(dividend$, 1, temp&& - 1) + MID$(dividend$, temp&& + 1)
IF temp&& = 1 THEN
DO UNTIL LEFT$(dividend$, 1) <> "0" ' Strip off any leading zeros on divisor only.
dividend$ = MID$(dividend$, 2)
dp2&& = dp2&& + 1
LOOP
dp2&& = dp2&& + 1
ELSE
dp2&& = -(temp&& - 2)
END IF
ELSE
dp2&& = -(LEN(dividend$) - 1)
END IF
IF betatest% THEN COLOR 11: PRINT "Divisor decimal moves "; LTRIM$(STR$(dp&&)); ". Dividend decimal moves"; LTRIM$(STR$(dp2&&)); ". Quotent decimal ABS("; LTRIM$(STR$(dp&&)); " - "; LTRIM$(STR$(dp2&&)); ") =";: COLOR 14: PRINT ABS(dp&& - dp2&&);: COLOR 11: PRINT "+ any adjustment.": COLOR 7
dp&& = ABS(dp&& - dp2&&)
IF betatest% THEN PRINT "Divisor 1st# = "; MID$(divisor$, 1, 1); " Remainder 1st# = "; MID$(dividend$, 1, 1)
' Adjust decimal place for instances when divisor is larger than remainder the length of the divisor.
j% = 0
IF MID$(divisor$, 1, 1) > MID$(dividend$, 1, 1) THEN
j% = 1
IF betatest% THEN PRINT "Larger divisor, so move quotent decimal one place back to: ";: COLOR 14: PRINT LTRIM$(STR$(dp&&)): COLOR 7
ELSEIF MID$(divisor$, 1, 1) = MID$(dividend$, 1, 1) THEN
IF LEN(divisor$) = LEN(dividend$) THEN
IF divisor$ > dividend$ THEN j% = 1
ELSE
IF LEN(divisor$) > LEN(dividend$) THEN
temp$ = dividend$ + STRING$(LEN(divisor$) - LEN(dividend$), "0")
ELSE
temp$ = MID$(dividend$, 1, LEN(divisor$))
END IF
IF divisor$ > temp$ THEN j% = 1
END IF
IF betatest% THEN
IF j% THEN PRINT "Larger divisor than dividend at LEN(divisor$), so move quotent decimal one place back to: ";: COLOR 14: PRINT LTRIM$(STR$(dp&&)): COLOR 7
IF j% = 0 THEN PRINT "Smaller divisor than dividend at LEN(divisor$), so no quotent decimal place adjustment needed. Quotent decimal place = ";: COLOR 14: PRINT LTRIM$(STR$(dp&&)): COLOR 7
END IF
ELSE
j% = 0
IF betatest% THEN PRINT "Smaller divisor, so no quotent decimal place adjustment needed. Quotent decimal place = ";: COLOR 14: PRINT LTRIM$(STR$(dp&&)): COLOR 7
END IF
IF j% THEN dp&& = dp&& - div_decimal%
origdividend$ = dividend$
' Determine length of divisor and dividend to begin initial long divison step.
gl% = 2: sm_greater_lesser divisor$, MID$(dividend$, 1, LEN(divisor$)) + STRING$(LEN(divisor$) - LEN(dividend$), "0"), gl%
divisor_ratio_dividend% = gl%
IF gl% = 1 AND MID$(dividend$, 1, 1) <> "0" THEN
dividend$ = MID$(dividend$, 1, LEN(divisor$) + 1) + STRING$(LEN(divisor$) + 1 - LEN(dividend$), "0")
ELSE
dividend$ = MID$(dividend$, 1, LEN(divisor$)) + STRING$(LEN(divisor$) - LEN(dividend$), "0")
END IF
' Long divison loop. Mult and subtraction of dividend and remainder.
k&& = 0
IF betatest% THEN PRINT "Begin long divison loop..."
DO
SELECT CASE MID$(divisor$, 1, 1)
CASE IS < MID$(dividend$, 1, 1)
adj_rem_len% = 0
CASE IS = MID$(dividend$, 1, 1)
gl% = 2: sm_greater_lesser divisor$, MID$(dividend$, 1, LEN(divisor$)), gl%
IF gl% = 1 THEN adj_rem_len% = 1 ELSE adj_rem_len% = 0
CASE IS > MID$(dividend$, 1, 1)
adj_rem_len% = 1
END SELECT
IF j2&& = 0 THEN j2&& = LEN(divisor$) + adj_rem_len%
DO
IF LEN(divisor$) > LEN(dividend$) THEN
w3&& = 0: runningtotal$ = dividend$: stringmathb$ = "0"
IF betatest% THEN PRINT: COLOR 3: PRINT "Divisor is larger so "; dividend$; " \ "; divisor$; " =";: COLOR 5: PRINT w3&&: COLOR 7
EXIT DO
END IF
IF LEN(divisor$) = LEN(dividend$) THEN
gl% = 2: sm_greater_lesser divisor$, dividend$, gl%
IF gl% = 1 THEN
w3&& = 0: runningtotal$ = dividend$: stringmathb$ = "0"
IF betatest% THEN COLOR 9: PRINT "Length of divisor is the same as remainder but remainder is smaller so w3&& = ";: COLOR 5: PRINT "0": COLOR 7
EXIT DO
END IF
END IF
SELECT CASE LEN(dividend$)
CASE IS > 2
w3&& = VAL(MID$(dividend$, 1, 2 + adj_rem_len%)) \ VAL(MID$(divisor$, 1, 2))
IF betatest% THEN PRINT MID$(dividend$, 1, 2 + adj_rem_len%); " \ "; MID$(divisor$, 1, 2); " =";
CASE ELSE
w3&& = VAL(MID$(dividend$, 1, 1 + adj_rem_len%)) \ VAL(MID$(divisor$, 1, 1))
IF betatest% THEN PRINT MID$(dividend$, 1, 1 + adj_rem_len%); " \ "; MID$(divisor$, 1, 1); " =";
END SELECT
IF betatest% THEN COLOR 5: PRINT " " + LTRIM$(STR$(w3&&));: COLOR 7: PRINT ". Begin mult est. at or one above this number."
IF w3&& < 9 THEN w3&& = w3&& + 1 ELSE IF w3&& = 10 THEN w3&& = 9
DO
stringmatha$ = divisor$: stringmathb$ = LTRIM$(STR$(w3&&))
runningtotal$ = sm_mult$(divisor$, LTRIM$(STR$(w3&&)))
gl% = 2: sm_greater_lesser runningtotal$, dividend$, gl%
IF gl% <= 0 OR w3&& = 0 THEN EXIT DO
IF betatest% THEN COLOR 8: PRINT "Mult loop:"; w3&&; "* "; divisor$; " = "; runningtotal$: COLOR 7
w3&& = w3&& - 1
LOOP
stringmatha$ = dividend$: stringmathb$ = runningtotal$
sm_add_subtract_router dividend$, "-", stringmathb$, runningtotal$
EXIT DO
LOOP
IF betatest% THEN PRINT LTRIM$(STR$(w3&&)); " * "; divisor$; " = "; stringmathb$; " | "; stringmatha$; " - "; stringmathb$; " = "; runningtotal$; " Remainder and drop-down = ";
j2&& = j2&& + 1
drop$ = "0": MID$(drop$, 1, 1) = MID$(origdividend$, j2&&, 1)
IF runningtotal$ <> "0" THEN remainder$ = runningtotal$ ELSE remainder$ = ""
dividend$ = remainder$ + drop$
w3$ = LTRIM$(STR$(w3&&))
temp$ = ""
IF div_decimal% = -1 THEN
IF dp&& AND k&& = 0 THEN
q$ = q$ + "." + STRING$(dp&& - 1, "0")
IF w3&& = 0 THEN w3$ = ""
END IF
END IF
IF div_decimal% >= 0 THEN
IF dp&& = k&& THEN
temp$ = "."
END IF
END IF
q$ = q$ + w3$ + temp$
IF betatest% AND remainder$ = "" THEN betatemp$ = CHR$(34) + CHR$(34) ELSE IF betatest% THEN betatemp$ = remainder$
IF betatest% AND MID$(origdividend$, j2&&, 1) = "" THEN betatemp2$ = CHR$(34) + CHR$(34) ELSE IF betatest% THEN betatemp2$ = MID$(origdividend$, j2&&, 1)
IF betatest% THEN PRINT dividend$; " ("; betatemp$; " + "; drop$; ") at:"; j2&&; "of "; origdividend$; " Loop"; k&& + 1; "Quotent = ";: COLOR 14, 4: PRINT q$;: COLOR 7, 0: PRINT: SLEEP
' Check to terminate
IF div_decimal% = -1 THEN
' Decimal to left.
IF remainder$ = "" AND MID$(origdividend$, j2&&, 1) = "" OR LEN(q$) >= limit&& THEN EXIT DO
ELSE
' Decimal to right.
IF remainder$ = "" AND MID$(origdividend$, j2&&, 1) = "" AND k&& >= dp&& OR LEN(q$) >= limit&& THEN EXIT DO
END IF
IF INKEY$ = " " THEN EXIT DO
k&& = k&& + 1
LOOP
EXIT DO
LOOP
IF RIGHT$(q$, 1) = "." AND divisor$ <> "0" THEN runningtotal$ = MID$(q$, 1, LEN(q$) - 1) ELSE runningtotal$ = q$
sm_div$ = runningtotal$
stringmatha$ = hold_stringmatha$: stringmathb$ = hold_stringmathb$
END FUNCTIONPete
RE: Using the Debug feature - RhoSigma - 09-24-2022
(09-22-2022, 11:44 PM)PhilOfPerth Wrote: I am curious about the Debug function. I have set watch points and then run my programme - what next?
There is no output of results visible, and no message to say the Debug has operated. Should I get a file with run results, or what?
Did you check out the Wiki page for $DEBUG? Note that only variables added to the watchlist will be displayed, press F7 to start debugging paused on the first instruction, then F4 to open the watchlist dialog. After adding the variables of interest close the dialog, then proceed with F6/F7/F8 as needed. If you've set a breakpoint, then you may also press F5 as usual to quickly run your program until the breakpoint. Note that breakpoints must be set on lines containing real code, breaks on comment lines have no effect and your program just runs over it, as the compiled program doesn't know the comment lines, those exist in the source text only.
RE: Using the Debug feature - Pete - 09-24-2022
Wait, we have a Wiki? I know, I know, removing Pete from my buddy list as we speak...
We do have a Wiki, and it's a thing of beauty. Great new format.
Pete