AND / OR function with variables

[russbow]

I want to call a sub routine if a variable is zero OR 5 and another variable is 1

if b8=0 or b8=5 and flag=0 then gosub count_it

that is if b8=0 and flag=0 then gosub also if b8=5 and flag=0

Also would this work to re-set flag for b8 values of 1,2,3,4 - 6,7,8 or 9

if b8<>0 and b8<>5 then let flag=0

It passes the syntax but I just don't feel comfortable with it.

 

[Technical]

For anything that is not goto or gosub you should use a multiline structure:

if b8<>0 and b8<>5 then 
let flag=0
end if

 

[nick12ab]

For anything that is not goto or gosub you should use a multiline structure:

if b8<>0 and b8<>5 then 
let flag=0
end if

And anything within a DO : LOOP or an IF statement should be indented. If there's labels in use, it also looks neater if everything is indented.

main:
    if b8<>0 and b8<>5 then
        let flag=0
    end if

 

[russbow]

Thank you both.

It is

if b8=0 or b8=5 and flag=0 then gosub count_it

that I need reassurance with.

Does this equate to

if b8-0 and flag=0 then gosub
if b8=5 and flag-0 then gosub

I can read this as

if (b8-0) OR ( b8=5 and flag=0 )

 

[Technical]

It's left to right so,

if ((b8=0 or b8=5) and flag=0) then

 

[russbow]

that's grand, thanks.

 

[MPep]

And anything within a DO : LOOP or an IF statement should be indented. If there's labels in use, it also looks neater if everything is indented.

main:
    if b8<>0 and b8<>5 then
        let flag=0
    end if

Not necessarily, but certainly aids in readability. More experienced programmers WILL use this because it makes fault finding easier.