Yeah, thats the simulator I'm using now which didn't support display memory which is why I had to emulate it.
Actually, I should probably re-write that along with some printf and console routines.

Thanks for the info but I don't understand quite a bit of what you said.
Still learning 6502 assembly after a short break so once that is done hopefully I can learn how to build something which uses it.

I have been reading through my 6502 book and some examples required display memory to write to inorder to change the screen.
Since the simulator I'm using does not have any display memory I decided to emulate it starting at $200 until $3B8 which should fill the simulator display console.
I'm ...

The keyboards aren't broken, they just have the keys too close together.
The other thing is my only apple II assembly book gives you a broken assembler to work with and the code in the book uses commands only their assembler understands.

I'm still looking for more tutorials though, the one I found ...

Thanks for the tip, and yes, writing to $E001 in the simulator outputs a character to a display window.

Thanks for the info, any specific books/sites you can recommend?
Still learning 6502 asm, the site I looked at didn't explain the code samples very well but I picked up enough to do this:


.ORG $200
Hello: .ASCII "Hello!", $00
.START .Main

.Main LDY #$00 ; String indexer
.getch LDX Hello, Y ...

Is it possible to learn 6502 assembly on my pc?
I have several apple IIs lying around but the keyboards are not friendly when it comes to lots of typing - that and the small screen size.
After learning how to program for the 6502 I'd like to build a small computer, what can you recommend for someone ...

I couldn't find a dos toolkit disk but I found one with Lisa on it.
Thanks everyone for your help.

Hello,

I have the book "Machine Language for Beginners" by Richard Mansfield and would like to learn 6502 assembly.
The problem I'm having is the simple assembler program which is listed in the book takes a long time to enter into my apple and doesn't even work.

I don't know ( and don't really ...