Programs for Z80 Calcs Discussion

[bfr]

Hello, this is the section where you may comment on the Z80 series of ti-calcs and where you may ask other members questions about the given subject. I'll start by saying that the ti-calc.org site offers many games to the Z80 series, in both asm and BASIC. Also, Z80 asm is...um...weird, at least compared to 68k asm; and asm is pretty weird anyway.

[Simon]

i am trying to learn asm by myself but it is almost imposible tho

[Pure]

I'm just starting to learn z80 asm. It may be complicated, but it'll be certainly worth it.

[Vladik]

You can make many great programs with Z80 Asm that were impossible to make in BASIC...

[Simon]

I am becomming very skillful for making ti82 game
but i still don't get the loops for( and while

[bcherry]

well, I'll explain them. While( is the basic loop. It does whatever commands follow it until the word "End", as long as the condition is true. Therefore:

:0->A
:While A<5
:A+1->A
:End

works just like:

:0->A
:Lbl 1
:If A<5
:Then
:A+1->A
:End
:If A<5
:Goto 1

For( is a special While( loop. For increments a variable every time around, until it reaches a certain value. For would be better for what we did above:

:For(A,0,5
:End

does the same thing. That's those two in a nutshell, though obviously there is a lot more.

[Simon]

got it almost all except for the for(, its harder to understand but i think it's when it's writed

disp"hello"
FOR(A,1,1000)
disp" how are you"


the for works like a pause but you can't press the enter, you need to wait untill A gets to 1000 by adding 1 each time ?

[Vladik]

You do mean


disp "hello"
FOR(A,1,1000)
END
disp "how are you"

, don't you?

If you want to let the user press a key OR wait for the loop to finish, try this:

Disp "Hello!"
Disp "Press a key or wait for me to go!"
For(A,1,1000)
GetKey->K
If K>0
Goto KEY
EndFor
Lbl KEY
Disp "Got to go now..."

[Vladik]

While implemntation


Disp "Hello!"
Disp "Press a key or wait for me to go!"
1->A
While A<1001 (or <=1000, either way...) and GetKey=0
K+1->K
EndWhile
Disp "Got to go now..."


Both should work fine...

[bfr]

Maybe he meant:

Disp "hello"
For(A,1,1000)
Disp "how are you"
End

That will quickly display "hello" and then display "how are you" about a thousand times.

BUt what I think would be better would be:

Disp "Hello, how are you"
For(A,1,20)
End

That will display "Hello, how are you" for a while.

Or you could split it into: Disp "Hello"."How are you".

[Vladik]

No; if he was talking about making a pause, he most definitely meant

For(A,1,1000)
End

Anyone watch(ing) the Superbowl? (It's still going...)

[Simon]

you got it

[bfr]

Are you a professional BASIC progrmmer now? It is good to be at the point where you just think of a good program, and can easily make it without any bugs. I'd like to see one of your games if you made any and if not, just any program. Maybe I can show the programming for one of my games. I could type it all out ...

[bcherry]

to be a "professional" BASIC programmer, you would have to be selling your programs and making money. Otherwise you would just be advanced, or perhaps "proficient." On this topic, today during class I was bored so I made an uncle worm esque game in BASIC on my 83. It actually runs fairly quickly, I was surprised.

[bfr]

Maybe Simon is making money$$$.