Questions related to the assembler `mov` instruction
The assembler mov instruction loads an immediate value into an register or transfers data between register and register or register and memory. See:
Questions tagged [mov]
296 questions
2
votes
1 answer
Assembly instruction mov register,[register][register]
I'm studying ASM 8086 theoretically on highschool (MASM, x86).
.data
var dd 421,422, 443, 442, 444, 217, 432
.code
; some code
mov esi, (OFFSET var)+4
mov ebx, 4
mov edx, [ebx][esi] ; that's the line I don't uderstand
I ran that program…
Greg Witczak
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2
votes
1 answer
iPhone SDK - Converting .mov to .3gp
I need to convert a video in format ".mov" to ".3gp". I searched on Google and I found some people saying to use ffmpeg.
I search a lot but I don't found any tutorial to how compile ffmpeg for iPhone then convert the video.
Has anyone what have done…
Lucas Santos
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2
votes
0 answers
MOV r, M instruction in 8085 microprocessor
I am sorry if the question is too basic but I still cannot understand the code that I found in Google. Basically, I need to make a simple code of MOV r, M instruction in 8085 microprocessor.
Here is the code that I want to make:
LXI H, 1234H
MOV B,…
Anonymous
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- 2
2
votes
1 answer
Cannot move a register to a register of a different size
When I write this:
mov cx,dh
mov dx,dl
It makes an error:
invalid combination of opcode and operands
I'm a beginner at assembly language so I need help!
oofman 143
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- 4
2
votes
1 answer
Conver .flv to .mov using ffmpeg
I am trying to convert an flv file (recorded using red5 server) to .mov file using ffmpeg.
Using below code is actually making the video choppy. We can make out that from file size. flv file size is 1.45 MB whereas converted file .mov is 270…
johnk1
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2
votes
1 answer
How to create transparent video from Blender (eg. logo/animation screen) to be played as part of Android/iOS app?
I would like to create an animation in Blender which has a transparent background and play this as a logo/animation screen within an app for Android/iOS phones/devices.
I am wondering if this is possible.
I understand I can export from Blender as a…
mike
- 131
- 10
2
votes
2 answers
HTML video tag read MOV file as an audio file in Google Chrome
Here is a MOV video file URL which was copied from my iPhone 8.
https://www.yangfamily.tw/attachments/IMG_3049.MOV
Then I tried to play this video on Chrome, the html code like below:
2
votes
1 answer
mov.w vs movw in arm assembly
Going through the Rust Embedded discovery book, I frequently see ARM assembly code that looks like this:
08000248 :
8000248: push {r7, lr}
800024a: mov r7, sp
800024c: bl …
Touloudou
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2
votes
1 answer
Disassemble command 8E C0
I need to disassemble command 8E C0, can you help me?
I already made this:
First byte 8E = 10001110b it's mov sr,reg/mem
But I don't know what to do with the second byte 11000000
user785415
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2
votes
0 answers
Why MOV AX, data Works?
I'm new to Assembly, and reading my school books I noticed it said MOV AX, data followed by MOV DS, AX was to initialise the Data Segment register (which I fully understand), but what confuses me is in the first instruction, MOV AX, data moves the…
Tarmius
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2
votes
2 answers
How do I encode iOS videos as .mp4 from UIImagePickerController so that Android devices can play them?
I am using UIImagePickerController to record short (<30s) videos which are then saved and uploaded via our API. The app is cross-platform and so I need recorded videos to be encoded into mp4 format so that Android devices can play them.
I used…
Iain Coleman
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2
votes
0 answers
NASM Real Mode Addressing issue
I've been following some tutorials about bios and stuff on Real Mode and tried to do the same as the author for reading special key press at 0417h.
He does something like this:
XOR AX,AX
MOV ES,AX
MOV AL,ES:[0417H]
But I only get "invalid…
Rick Absd
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- 1
2
votes
1 answer
Multiple subtitle tracks are not encoded into mov file
I am trying to compile a mov file with multiple audio tracks and subtitle tracks to match. Unfortunately only the first subtitle track appears in Quicktime (Intended for Apple Devices). Looking at it compile- it appears that the second subtitle…
David Rees
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2
votes
3 answers
Very large address copied as negative value
I was going through a binary file corresponding to a C program.
I have a very large address stored in %eax.
When tried to see the value via gdb, it prints a negative value (reason here).
Now when mov %eax, 0x4c(%esp) is performed, the resulted value…
Jithin Pavithran
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2
votes
1 answer
ffmpeg: How can a MOV with transparent background be created?
I'm trying - with no success at all - to convert the green pixels of a background into transparent ones and output the result as clip with ffmpeg. N.b. I do not want to lay the clip over anything; I'm not having a problem with that. What I want is a…
Mat
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