sbb | Semantic Body Browser - a tool | Animation library
kandi X-RAY | sbb Summary
kandi X-RAY | sbb Summary
Semantic Body Browser - a tool for graphically exploring an organism's body.
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QUESTION
In this source, they have given that hex for cmp r/m16/32 imm8 is 0x837. Somewhere i got that, hex for ebp is 0b0101. With this information, how can i encode the instruction cmp dword [ebp-4] 2
? I have been searching for this from a couple of hours and got no clues except for this(page 61) similar instruction cmpb $0xf,(%rdi)
encoded as 80 3f 0f. But I'm unable to understand this as the former source I mentioned says that 0x803 is for sbb. Also rdi is 0b0111 and not 0b1111 (which is r15 indeed). I'm getting confused... If possible, I want encoded instruction for both x86-32 and x86-64.
ANSWER
Answered 2021-Apr-01 at 14:21Consult the official Intel® 64 and IA-32 Architectures Software Developer's Manual Volume 2: Instruction Set Reference, A-Z, available on Intel's website in several formats. Turn to the page about CMP
, find the row with CMP r/m32, imm8
. This gives the opcode column as 83 /7 ib
. Turn to
Table 2-2. 32-Bit Addressing Forms with the ModR/M Byte. Pick the [ebp]+disp8
row and the /digit 7
column. The cell tells you the ModR/M byte is 7d
. You need to append the displacement of -4
which is fc
in 8 bit signed and your immediate operand. The complete instruction is thus 83 7d fc 02
. In 64 bit mode if you use rbp
the encoding is the same. If you want to keep ebp
you need to use an address size override prefix of 67
.
QUESTION
I am trying to use jq to filter a large number of JSON files and extract the ids of each object who belong to a specific domain, as well as the full URL within that domain. Here's a sample of the data:
...ANSWER
Answered 2021-Mar-29 at 08:12It would probably be wise not to attempt to cat
all the files at once; indeed, it would probably be best to avoid cat
altogether.
For example, assuming program.jq contains whichever jq program you decide on (and there is nothing wrong with using contains
here), you could try:
QUESTION
I have a problem with JWT decoding. I'm writing an integration for oauth2 authorization service. I send a request to get an authorized token and get a response like:
...ANSWER
Answered 2021-Jan-22 at 11:49Filip described the approach here. I just expanded it a bit.
QUESTION
I am trying to do app, where you have 3 SeekBars and under them, there are 3 TextFields, which are showing shade of each color, and under those is TextField, which is changing color when you are moving SeekBar. When I try to lunch it on mobile, it say's that the app "Keeps stopping". Thanks for help.
...ANSWER
Answered 2021-Jan-21 at 14:06You didn't initialize text views...
TVr = findViewById(R.id.TVr);
- do it for all 3 TextViews TVr, TVg, TVb;
Also:
- You have to initialize vysledek.
- You have to cast progress (
seekR
,seekG
,seekB
) to String inonProgressChanged()
method -TVr.setText(String.valueOf(seekR));
- Your layout is also very poor. You haven't mentioned the orientation
android:orientation="horizontal"
and the positioning for theLinearLayout
as well.
QUESTION
I have a program written in tasm
under dosbox
(its text is provided below).
Is is produced by my own c-written compiler for abstract pl.
I am trying to compile and run it in the following way:
ANSWER
Answered 2021-Jan-05 at 02:08My version of tasm emits a
*Warning* Assuming segment is 32 bit
You should use the .386
after the .MODEL SMALL
to keep segments 16 bit, or explicitly emit 16 bit segments instead of using the simplified directives.
QUESTION
I am writing a space invaders emulator as a personal learning project. I have run into an issue where it seems that the ReadByte()
method in the FileStream
class is reading more than one byte at a time. Here is the code:
ANSWER
Answered 2020-Nov-24 at 16:00There are two ReadByte
calls here;
QUESTION
I have a pandas DataFrame
that has the following MultiIndex
on list, conId:
ANSWER
Answered 2020-Jul-18 at 15:22When you create the index name try not use the python or pandas exist function.(list
is build-in function)
QUESTION
The operation of ADC
is DEST ← DEST + SRC + CF
, and the operation of SBB
is DEST ← (DEST – (SRC + CF))
. What puzzles me is the effect on FLAGS that these instructions have. In the case of SBB
, the associativity is clear, and I would therefore assume that SBB
is equivalent to (in terms of register states in the end)
ANSWER
Answered 2020-Jun-09 at 19:23Carry-out from both ADC and SBB is based on the whole operation.
If you write sbb
as dst -= CF
, dst -= src
, if either of those produces a borrow then CF should be set.
The parens in the pseudo-code are not trying to tell you which part of the operation actually sets FLAGS. You're reading too much into it, and it's not that easy to emulate a full-adder (adc
or sbb
with carry in and carry out. That's why it's super helpful to have hardware supported instructions for them.)
Your emulation for sbb
is buggy for the case where src+CF
wraps to 0. You don't distinguish the src=-1 CF=1 case (always carry) from src=0, CF=0. (dst-=0 always produces CF=0). Try it on a real CPU with a debugger.
You can think of ADC as dst += src + CF
(or -=
for SBB) where the src+CF
temporary is computed without truncation; e.g. a 33-bit sum for 32-bit operand-size. The dst
and CF outputs of ADD / SUB / ADC / SBB can also be regarded as a 33-bit value.
Simple example:
QUESTION
I'm investigating a minimal opcode size x86-64 strlen implementation for my code golfing / binary executable that is not supposed to exceed some size (think of demoscene for simplicity).
General idea comes from here, size optimization ideas from here and here.
Input string address is in rdi
, max length should be not bigger than Int32
ANSWER
Answered 2018-Apr-20 at 06:09I did some benchmarking on Intel Core i7 4850HQ Haswell 2,3 GHz, release build no debugger attached. In each loop I measure 1000 sequences of asm instructions and repeat it 10 milion times to average result.
I've made macros for repeating asm instructions 100 times.
QUESTION
So, I am trying to make a plagiarism checker with c#
and google
and after a few debugs, my code does not work anymore. I tried to see the exception and saw that it is a 429 Too Many Requests error
. What I want to do is either bypass this error with something (as I can still access google from the same pc) or get a time that I can try again. How can I do that?
Code for google search:
...ANSWER
Answered 2020-Jan-30 at 12:18While I can't see all the code , and can't see any recursing I assume you are making multiple calls to SearchAndWrite , you probably need to rate limit your queries.
Try putting a 5 or 10 second wait in between each request, if the problem goes away then you need to find a way to not hammer google with queries.
Consider using a queue, and worker loop.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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No vulnerabilities reported
Install sbb
Check out the repository somewhere into your Apache document root directory: git clone https://github.com/flekschas/sbb /path/to/apache/root/somewhere
Edit build.config.json and set apache_root to your Apache document root directory. (e.g. /path/to/apache/root)
Install Grunt, Bower and Karma:
npm install -g grunt-cli bower
npm install
bower install
Build and compile the application: grunt
Point your favourite browser to localhost/somewhere/bin.
Be happy and start exploring!
We use Grunt for our build system and based it on ngBoilerplate and Yeoman.
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