I'm still working on this program to check the batteries of my calculator, and I stored the battery level in a variable. I want to make it print out "The battery lvl is " + variable. I've Googled this and looked through z80 heaven and other sources and I still cannot find any information on how to do this.
Sorry if this is a dumb beginner question, but I genuinely cannot figure this out.
Thanks! ^^;

Edit: This is for z80 and not ez80

So is it in z80 then?

Yes, as you would have notice if you had seen the subforum it was posted in

I'm still learning myself, so I may very well be mistaken, but it seems that there isn't any rom call for displaying a decimal number (I'm assuming that's what you want) so I imagine you have to generate a string yourself and _PutS.

Depending on whether or not the variable you have is already binary coded decimal or not, you will have to convert it to such, and then you can probably add whatever the binary value of the character '0' is to each digit. I'm not sure how to do that in assembly yet, but I'll be learning to soon I imagine.

_SetXXOP1
_DispOP1A

It's not a decimal number, it's an integer x-x
how do you make it a string?

I just told you.

Given that the value of a battery level will be between 0-100, something like this might work:


Code:


(from http://tutorials.eeems.ca/ASMin28Days/lesson/day11.html#num)

Sorry, the page must not have refreshed when I responded, I didn't see your reply. My bad ^^;