Im using a 6502 emulator to work on a project for university. We use a set area of memory which correlates to displaying an 'output' on a simulated display.

Currently I have an array of alphabetic characters which I wish to display onto this 'screen'. This is not the problem - i have done this and it works.
Ive done this by using a LDA array,X in a loop and it produces the out put i desire.

My question is that I now have an array that exceeds 255 characters and as the offset just revolves back to 0 it wont display what i want on the screen.

Without being able to modify the array or use additional variables (like having 2 variable names nested within the array), is there a way I can display more than this?

Or should i be looking at an alternative way of displaying this data..
What the data is isnt important - im just interested in how I can show the entire block without it reverting back to the start.

Any suggestions?

(Pls note the code below is a shell i what i used to achieve the basic functionality of the display to the 'screen', there are more lines to it - but omitted)

Im thinking I have to use 16 bit some how but I dont know where to begin in attempting that.

I would suggest using the indirect addressing modes. Instead of keeping the pointer to the data in the code, store it in zero page somewhere, then use LDA (ptr),Y to read it. You can increment Y to access up to 256 bytes, then when it wraps around to zero just increment the high byte of the pointer.