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| debug information |
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Posted by: wilco2009 - 12-18-2012, 11:42 PM - Forum: Help & Support
- Replies (6)
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It is possible to debug a zxbasic program in any emulator but at BASIC level (not assembler) using the debug information generated on compiling time?
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| Var declaration checking |
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Posted by: wilco2009 - 12-18-2012, 11:34 PM - Forum: Wishlist
- Replies (5)
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Please, Could be possible to add an command option to require declare all variables.
I think, not declared variables is the source of bugs more difficult to find.
The problem is worse when you consider that BASIC is case sensitive.
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| Non sense results (or error) working with defm strings |
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Posted by: wilco2009 - 12-15-2012, 10:48 AM - Forum: Help & Support
- Replies (2)
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Just to save space, I'm coding some strings in inline Asm sentences, and I found a bug.
If you execute the following code:
Code: Dim x as byte = 1
Dim y as byte = 5
Dim c as byte
textdata:
Asm
defm " BILBO GUARDO EL TESORO Y EL "
db 0
defm " ANILLO POR MUCHO TIEMPO, SIN"
db 0
defm " SOSPECHAR SU VERDADERA"
db 0
defm "NATURALEZA Y SU TERRIBLE PODER"
db 0
defm "HASTA MUCHO TIEMPO DESPUES"
db 0
defm "PERO ESO YA ES OTRA HISTORIA.."
defb $FF
End Asm
Border 0: Paper 0: Ink 6: Bright 1: Cls
dir = @textdata
Do
c = Peek dir
If c <> 255 Then
if c <> 0 Then
print at y, x; Chr$(c)
x = x 1
Else
x = 1
y = y 2
End If
dir = dir 1
End If
If Inkey$ <> "" Then Exit Do: End If
Loop
Pause 1000
End Sub
If you delete the lines:
Code: defm "HASTA MUCHO TIEMPO DESPUES"
db 0
I think the bug have relation with the memory reserved by the asm lines, because deleting or adding lines you get differents errors, sometimes you get an "Out of Memory" message or shows the correct result but paper white instead black.
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| Incorrect values asigned to an uinteger matrix (*solved*) |
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Posted by: wilco2009 - 12-15-2012, 09:42 AM - Forum: Bug Reports
- Replies (1)
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Si se compila el siguiente fragmento de código el resultado es muy diferente del esperado:
Code: Dim obj(15) as uinteger
for i = 0 to 15
obj(i) = 9999
Print Obj(i)
nex i
Si ahora consultas el resultado del array de objs, en lugar de contener todos los elementos 9999 contienen el valor 255.
Compiling the following code, the value of the matrix elements is totally diferent to the expected one:
Code: Dim obj(15) as uinteger
for i = 0 to 15
obj(i) = 9999
Print Obj(i)
nex i
All the elements of the obj matrix are now 255 instead 999.
Using a intermediate scalar variable the result is correct.
NOTE: Bug fixed in the new version 1.3.0s952
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| Optimiser level 3 bug found (*solved*) |
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Posted by: LCD - 11-28-2012, 09:25 AM - Forum: Bug Reports
- Replies (8)
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Hi Boriel!
I just ran into a bug with this code:
Code: paper 7:ink 0:border 7:cls
Function code2level() as ubyte
dim adr as uinteger
dim count as ubyte
adr=@buffer
count=0
do
if not (peek(Uinteger,adr)-peek(Uinteger,@inpstring+3)+peek(Uinteger,adr+2)-peek(Uinteger,@inpstring+5)+peek(Uinteger,adr+4)-peek(Uinteger,@inpstring+7))
goto passok
Else
count=count+1:adr=adr+6
end if
loop until count=32
count=255
passok:
return count
end function
print code2level()
End
inpstring:
asm
defb 1,1,56
defm "Leveld"
end asm
buffer:
asm
defm "Level1"
defm "Level2"
defm "Level3"
defm "Level4"
defm "Level5"
defm "Level6"
defm "Level7"
defm "Level8"
defm "Level9"
defm "Level0"
defm "Levela"
defm "Levelb"
defm "Levelc"
defm "Leveld"
defm "Levele"
defm "Levelf"
defm "Levelg"
defm "Levelh"
defm "Leveli"
defm "Levelj"
defm "Levelk"
defm "Levell"
defm "Levelm"
defm "Leveln"
defm "Levelo"
defm "Levelp"
defm "Levelq"
defm "Levelr"
defm "Levels"
defm "Levelt"
defm "Levelu"
defm "Levelv"
end asm
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| Bit shift bug. (*solved*) |
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Posted by: britlion - 11-17-2012, 03:16 PM - Forum: Bug Reports
- Replies (5)
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Bit shift by 0, when 0 is from a variable=0, which is incorrect!
Code: DIM num as uByte=1
DIM num2 as uByte=0
PRINT num
PRINT (num<<0)
PRINT (num<<num2)
All three lines should read "1"
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