I want the Date in the lower left in this format:
MM\DD\YY

I want the Time in the lower right in this format:
HH:MM (12-hour mode)

How do I do this?

-_-;

You use the freakin' bcalls in that wiki. One gives you month day and year, and one gives your hours and minutes.

I gave you http://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:47E0 .

For the last time, please learn to read and use the documentation and tutorials available. We're essentially writing your program for you.

Where in this page:
http://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:514F
and this page:
http://wikiti.brandonw.net/index.php?title=83Plus:BCALLs:515E
does it say how to set the position on the screen?

I need step by step help with the b_calls. I'm having a hard time copying from the buffer to the screen.

Oh my goodness, the second link you provided even shows you how to use it! It uses the _vputs bcall, which is controlled by pencol and penrow. Just change these values... Please also read the manual. It covers the FPS and buffers.

How do I display, increase, and decrease a number in the format 0.00 (2 decimal place number) in ASM?

I don't want 8.8 fixed number. I want a number with 2 decimal places.

What could you possibly mean? 8.8 just means that 1 byte is used for both the fraction and whole number. It is a an old style to represent fractions for sure, but it does an okay job in z80.

I would suggest that you completely avoid the whole decimal issue for now, and simply store it as a whole number, but just change the location of the decimal point.

For example:

Code:


That's for displaying the number in base 10, and hopefully shows you how to change it. Now, all you have to do is write the code to display the decimal point at a certain spot -- I would recommend that you just make it a point and display it, rather than a character. Hopefully this helps!

(I wish the spacing in code tags worked better with tabs. )


EDIT: And here are some links that will provide everything that you should start with and know about to some degree before anything else:

IMPORTANT:
http://tutorials.eeems.ca/ASMin28Days/lesson/toc.html
BEST:
http://education.ti.com/~/media/672891A1E98349CAB91C11B4928C253C

How do I add .01 in ASM the easiest way.

Did you read anything in the post above yours?

I would love to know the simplest way to add .01 in ASM without scrolling through documentation.

Any b_calls?

Let me repeat my question. Did you read the post directly above yours? Why do you want us to do the "scrolling through documentation" for you?

You just told us everything we needed to know.

We have given you the links.

We have given you the documentation.

We are not going to just program things for you. Go figure it out. Go read the tutorials. Go read the documentation.

This is getting ridiculous.

B_call(_setxxxxop2)

What should I write for xxxx?

What I'm trying to do is do user input with a decimal number with 2 places. Pressing the up arrow would increase by 1, down would decrease by 1. Right arrow key to change what number place to increase or decrease.

The bcall is literally called _setxxxxop2, as you would know if you had read the documentation.

Please, read my post one more time. Don't worry about decimals just yet. They can be strange at first. Just display a point in between the decimal and the whole number, sort of like a pseudo-decimal number. This will make math many times easier if that is what you are planning, and you will be able to understand what is happening better. Look at the BEST link for bcalls, but remember, bcalls are just locations that the program jumps too. You can pretty much create your own versions as well.

EDIT: If you want to move in between each place value, just multiply by 10 each time you move left. For example, to change 4.99 to 5.09, I could add 10 to the number. From 5.09 to 4.09, I could subtract 100.

By the way, before it might happen, a register cannot hold a decimal.

I suggest that you read http://catb.org/esr/faqs/smart-questions.html . It is an excellent guide to asking questions, and I feel everyone here, especially you, would be more productive if you read and understood it. It is really a lot easier than learning z80 assembly.

I looked all over the web and Cemetech and it's only giving me the outputs for b_call(_getDate).

Outputs:
OP1=Day of Month
FPST=Day of Month
FPS1=Month
FPS2=Year

I want to do the MM\DD\YY format.
How do I display the outputs above?
I tried every method and I couldn't get it to display.
I want to display it in small font in the lower left of the screen.

How do I do this?

This is the section of code that i'm having trouble trying to display the date:

Code:


This is the output:

Okay, before I answer, let me say one thing: Everything you need is in the two links I gave you. Please read them already!

So, if you look at the documentation for the _DispHL bcall, you will notice that it displays in large font. Use the routine that I gave you, please: _dispop1a. ---Make sure you set the small font flag!

Next, take a look at this awesome list of bcalls that was in the documentation:


Code:


Mateo is currently pondering something...
Mateo - Finished pondering and decided to just write the program. See below.

I want a way to display the Date in DD\MM\YY instead of DD\MM\YYYY because DD\MM\YYYY doesn't fit in the space I made for the Date:


Also, when I select 0 in the User Input:


It gives me an Err:Overflow message:


When I select any other number in User Input (Example:1):


It displays the Results screen like it's supposed to do:


Why am I getting the Err:OverFlow message when I select 0 in User Input?
How do I fix this?

And how do I change the date format from DD\MM\YYYY to DD\MM\YY?

Edit: Here's the code for it:

Code:

Code:


That should in theory do what you want, but you are going to have to be more specific for your second question. Some code, perhaps? Thanks!