Post by thread:[SX] 16-Bit operations in assembly

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:Ok, I USED to know how to do this back in my 6502 days but I get very little asm time these days and I'm rusty..lol Anyway, here is what I am trying to do. I need to send a 16-bit address (15-bit, actually) to two ports. I would like to do something like: SET(512) // now, RB = %11111111 and RC = %00000001 SET(16788) // now, RB = %0010100 and RC = %10000011 etc... Any clues where I can start?Thanks!

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:For constants use: Value EQU 512 MOV RB,#(Value & 255) MOV RC,#(Value >> 8) Bean.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:Thanks Bean! But I should have mentioned it would be dynamic....

I need "Value" to loop from 0 to 32,767 thanks cbmeeks ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89601 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jon Williams wrote:If you already have a 16-bit value it exists as two bytes, so just copy them to the ports. MOV RB, #addrLo MOV RC, #addrHi Or am I missing something?

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:hmm...maybe I am making it too difficult? Is it really that simple? So, I could: addr ds 2 ; two bytes ;set addr = 2378 MOV RB, #addr MOV RC, #addr+1 ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89626 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:Only without the "#" MOV RB,addr MOV RB,addr+1 Bean.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Johnson Rod wrote:arent you just trying to slide a single bit across 2 output registers?

if so wouldnt this work mov ra , #1 clc loop rr ra rr re jmp loop ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89631 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote: [Quoting: "Bean (Hitt Consulting)"]Only without the "#" MOV RB,addr MOV RC,addr+1 Bean. Dur...yeah, that looks better because I am moving the CONTENTS of addr...not the constant addr...lol [Quoting: "nick bernard"]arent you just trying to slide a single bit across 2 output registers?if so wouldnt this work mov ra , #1 clc loop rl ra rl re jmp loop What I am actually tring to do is read the contents of SRAM.I have built SRAM circuits that actually worked really well but my address bus was limited to 256 bytes (one port). So, two ports gives me 64k which is exactly the amount I need (actually, 32k for now).

I am trying to make a PEEK and POKE command. :-D ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89663 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, jonwilliams wrote:There's no way. You actually couldn't figure out moving a 16-bit variable? If this is the level of programming skills of our customers, we're screwed.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jeff Young wrote:

Whoever this is trying to impersonate Jon, it's not all that funny. Just from reading all of the posts on here, just about every day, I know for a fact that he's a damn good helper when it comes to this stuff... (And I can't forget you as well BEAU!) I noticed at the bottom of the screen when I logged on that the newest member was Jon Williams [Parallax] and thought it was sorta peculiar, so after looking, it shows only 1 post and the screen name was created today, as well as the tone in his post above was a little off-beat for him. (Unless you didn't Google first! But that's another story!) :-) ~Jeff ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89865 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:Yeah the "Total Posts: 1" sorta gives it away, totally uncool. Whoever you are, you should be banished from the forums permanently. Spoofing a person's identity is completely reprehensible, especially if your aim is to sully the reputation of a Parallax employee. They work hard to provide top notch customer service, and they dont need bleepity bleep bleeps like yourself screwing things up.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:Man, some people have TOO much time on their hands. And Dude, the fake Jon, you're NO "hacker" because you changed "(Parallax)" to "[Parallax]". Go get a life....better yet, run across an interstate without looking.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:I love the fact you put his email address in the profile, did you compare the email and or ip addy to the list of other members to see if it was an existing member? If he were smart he would have used an alternate email address and relayed his connection, but something tells me he isn't that bright.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:I love the fact he only got one post in before being busted...hehehe.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jeff Young wrote:

I'd email him and let him know what a &*#*?@! he is, but that's a waste of $0.35 to send it to him! ..... Ooops, wrong type of mail... still a waste of $0.00 though!! I'll bet he's a member here, or he has been reading threads on here for a little while. The fact that he even went as far as copying Jon's picture, and the signature below his name only meant that he actually thought about it before he did it and didn't just pick a random name to do it with. I'm sure if he would've posted a bunch of fake thread responses telling people how to basically (no pun intended) screw up their stamps he would've been really proud of himself. Hmmm... that type of maturity gets me wondering if we should check all of the local elementary schools for wannabe hackers!! We'll get him now! :-) BTW I love the way you handled it Jon! That is awesome! ~Jeff ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89931 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, g_daubach wrote:Momentan �berlege ich, ob ich meine zuk�nftigen Nachrichten im Forum in deusch schreiben soll. Vielleicht f�llt es dadurch solch dummen, geistlosen Leuten schwerer, meine Nachrichten zu f�lschen. Currently, I'm considering to write all my future forum posts in German language. Maybe, this makes it a bit more difficult for such stupid, mindless wimps to fake my posts :-) . I can only say: Rippers get out'a here !!!

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, LostboY wrote:No matter where you go, there you are....

Ryan ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m89959 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:No wonder, the kid must be bored silly living in Des Moines, where the state capitol is rated the 2nd most interesting thing to visit (behind the state fairgrounds, whose #1 review is "too crowded, things are too exspensive (sic), alot of horse cr@p. but overall fun."). Anyways, cbmeeks did you have your question thouroughly answered, since this thread has veered offtopic?

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:Yeah, I think I am OK for now. I had to go back to the drawing board anyway. I got some 74HC164's on their way plus, I might actually have to fire up that SX52 protoboard I have...lol 40 pins makes it a LOT easier to access SRAM than 20.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, LostboY wrote:No matter where you go, there you are.

Ryan ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=89595#m90146 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, knightofoldcode wrote:Jon, I'd assume you changed his e-mail address on the fake Jon's account, seeing as how he could recover the changed password with the lost password feature. ;) But I'm sure you already thought of that. ;) Knight.

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