why using LDI instead of LD? it takes more cycles. Am i missing something? Thanks
@hei_zart56902 жыл бұрын
HELO PELAJAR KOMPUTER SAINS
@memelord78042 жыл бұрын
Who else got a midterm tmrw
@crispinvlogs10 ай бұрын
In 2 hrs
@Lol-mi2bf2 жыл бұрын
Why tf is the sound so low? Speak louder dipshit
@dailyhypothesies34772 жыл бұрын
I didn´t understand the LDR because i needed an example. What do you mean by base and offset. How is it used in practice? You´re explaining it well, but in a language i don´t yet understand. Simplify please <3
@giorgossakkatos61012 жыл бұрын
You're a talented communicator of science. Thank you very much!
@anhnguyenthi4032 жыл бұрын
The video sound is pretty good, beyond my imagination
@abdulazimkhilji69882 жыл бұрын
how did you do it can you share with me , thank you
@nangnguyen83093 жыл бұрын
The video sound is pretty good, beyond my imagination
@sefalimalndal63794 жыл бұрын
Amar
@user-ji7fd3wc5b5 жыл бұрын
Not as clear as the LOAD and ADD videos
@leejin3215 жыл бұрын
thank you
@HuyTran-ew4yq7 жыл бұрын
Hi, I don't understand what the BR function and GETc funtion affect to this program.Could you help me. (I started learing yesterday :((( ) Sorry with my E-grammar. .ORIG x3000 LD R1, NOT_A ADD R0, R0, R1 BRZ result HALT result: LD R0, Y OUT HALT NOT_A .FILL x-41 Y .FILL x59 .END Thank you!!!
@mattphillips79967 жыл бұрын
In 4:13, you mention the PCoffset maximum offset to be -255 through +256, when it should be -256 through +255 because we can only represent up to 2^n - 1 in the positive range.
@MatthewYounan6 жыл бұрын
Actually, they're right. I almost made that same mistake lol You're absolutely right with your logic however, the PC is incremented right before so you take your -256 through +255 and add you're +1 from the PC and you get -255 through +256.
@zaboomafia7 жыл бұрын
What gets stored into the destination register? Where does it come from?
@werbungschrott40507 жыл бұрын
the result: for exampe for AND, whether the two Inputs (from the source Registers) are equal and for ADD the sum of the two inputs. For instructions like LD, the value that you want to get from memory is stored in the destination register. The values either come from a computation by the ALU (add, and, or, Sub, etc etc) or come from memory (ld, ldr, ldi, lea etc)
@zaboomafia7 жыл бұрын
How do you compare in LC3?
@rampage14x136 жыл бұрын
how
@brother_cone4 жыл бұрын
@@rampage14x13 how
@krishi19233 жыл бұрын
Compare what?
@adonis11687 жыл бұрын
would you have died if you did one example for each?
@محاربخبير7 жыл бұрын
yes he would
@LIANGE10118 жыл бұрын
wait is there not a OR operation in lc-3?
@hass16978 жыл бұрын
LC-3 use Not instead of shifting !!
@charitoncharitonidis9066 жыл бұрын
hahaha it's pretty late but you can use DeMorgan's theorem which says: A OR B = A' AND B'
@kregg346 жыл бұрын
its A OR B = NOT( NOT(A) AND NOT(B) ) actually
@gonzaa11019 жыл бұрын
Exactly how do the condition codes on the BR function affect BR?
@TheManumanohar9 жыл бұрын
why it was marked '64k (by) 16' in the memory(ram)
@user16155 жыл бұрын
cuz it is. The memory of the LC-3 has 2^16 bit address space and 16 bit addressability (so we have a 65536 identifiable unique locations and 16 bit in each one) In a short we can spell 65536(2^16) like a 64k
@juanpablomercksifontes702610 жыл бұрын
i have a question, i don't understand very good the opcode LDI, the part of the diagram where are the steps. My question is: why happen this? MDR <-- M[MAR] MAR <-- MDR MDR <-- M[MAR] could you explain this please? and thanks for your videos again
@jebdiankerman50294 жыл бұрын
That's what LDI is supposed to do, which is fetching the content of another location in the memory, read that content as another address, and store the content of that newly found address. Think of it as a treasure map, you were told to go to a location, you get there, you find a new hint that tells you where the treasure actually is, and you go to where the hint tells you to, and finally found the treasure.
@juanpablomercksifontes702610 жыл бұрын
thanks for the videos!! the videos are helping me a lot
@Davidh25812 жыл бұрын
Thought this was a great refresher in how LC3 goes from state to state. Solid stuff.