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Asembli :: RE: Zgjerimi i numrave hyres dhe dales ?

Autori: qoska
Postuar: Fri May 25, 2007 11:08 am (GMT -5)
Tema P�rgjigjet: 3

http://www.pjrc.com/tech/8051/

tek ai linku duhet te gjesh te gjithe infon qe kerkon.

Lodhuni pak me shume sepse besoj ndihme mund te kerkoni per dicka specifike une nuk mund te perkthej dokumentat e kesaj kompanie sidomos per pjese hardware qe kane datasheets te publikuara!

Asembli :: RE: Zgjerimi i numrave hyres dhe dales ?

Autori: Bujar.ing
Postuar: Wed May 23, 2007 3:43 am (GMT -5)
Tema P�rgjigjet: 3

qoska
Kam harruar te tregoj se duhet me e perdor mikrokontrollerin 8051.
_________________
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Asembli :: RE: Zgjerimi i numrave hyres dhe dales ?

Autori: qoska
Postuar: Tue May 22, 2007 11:17 am (GMT -5)
Tema P�rgjigjet: 3

mov eax, $NUMER
shift eax >> 1 (pjestim me 2)
shift eax << 1 (shumezim me 2)

nuk e di cfare nenkupton me rifreskim te te dhenave por
mov $adresa, eax

ben kete. ($aadresa mund te jete edx, ecx ose nese do te modifikosh ne stack push/pop)

kerko per manualin e intelit per arkitekturen x86 dhe ke te dhena sa te duash per kete.

Asembli :: Zgjerimi i numrave hyres dhe dales ?

Autori: Bujar.ing
Titulli: Zgjerimi i numrave hyres dhe dales ?
Postuar: Mon May 21, 2007 6:39 am (GMT -5)
Tema P�rgjigjet: 3

A din ndokush nga ju me e pune kete detyre me shkru ne asambler.
Zgjerimi i numrave hyres dhe dales me Shift Register dhe rifreshi periodik i informatave.
Ose nese e dini naj web sajt (perveq google) ku mundem me gjet material me punu kete detyre.
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Asembli :: RE: 0xDEADBEEF =)

Autori: beta
Postuar: Tue Feb 08, 2005 10:10 pm (GMT -5)
Tema P�rgjigjet: 1

gdk mire programi. pavaresisht prej kreativitetit (qe po don me e shfaq ashtu "nicely") ke mundur me e shiku vetem memory mapen ne hex keshtuqe me e lexu ate numer 32bitesh si HEX direkt

beta

Memory Map-a

Kodi:

[0x10000000]...[0x10010000] 0x00000000
[0x10010000] 0xdeadbeef 0x00000000 0x00000000 0x00000000
[0x10010010]...[0x10040000] 0x00000000

Asembli :: 0xDEADBEEF =)

Autori: gdk
Titulli: 0xDEADBEEF =)
Postuar: Mon Feb 07, 2005 9:08 pm (GMT -5)
Tema P�rgjigjet: 1

Pares sapo e mbarrova nj� program q� b�n konvertimin e nj� word (word = 32 bit) n� vler� heksadecimale. Por, doja q� t� dija se a b�het konvertimi plot�sisht, p�r ato e futa vler�n 3735928559 n� programin n� vijim:

Kodi:

# Genc Doko <gdk ET pr-tech PIKE net> ose <gdk ET rrjeta PIKE net>.
# Pershkrimi: Shfaqja e hex vleres te nje word.

.data
var: .word 3735928559

.text
.globl main
main: li $t2, 28
loop: lw $t0, var
srl $t0, $t0, $t2
and $t0, $t0, 0xF
blt $t0, 10, pInt
addi $t0, $t0, 0x37
la $a0, 0($t0)
li $v0, 11
syscall

beq $t2, $zero, done
addi $t2, $t2, -4
j loop

pInt: la $a0, 0($t0)
li $v0, 1
syscall

beq $t2, $zero, done
addi $t2, $t2, -4
j loop

done: j $ra
.end

Pas, ekzekutimit t� programit fitohet vlera heksadecimale DEADBEEF. Kjo aq sa �sht� qesharake �sht� edhe interesant. Lexoni fragmentet q� i kam p�rfshir� n� vijim, p�r t'a kuptuar pse:

Citat:

This was true with the ancient IBM 6150/6151!

When you looked at the registers of the CPU with their debugger,
all uninitialized registers had the hexcode 0xdeadbeef!

Burimi: http://www.gnu.org/fun/jokes/deadbeef.html

Citat:

An attack on a public-key cryptosystem consisting of publishing a key having the same ID as another key (thus making it possible to spoof a user's identity if recipients aren't careful about verifying keys). In PGP and GPG the key ID is the last eight hex digits of (for RSA keys) the product of two primes. The attack was demonstrated by creating a key whose ID was 0xdeadbeef.

Burimi: http://catb.org/~esr/jargon/html/D/dead-beef-attack.html

Citat:

The hexadecimal word-fill pattern for freshly allocated memory under a number of IBM environments, including the RS/6000. Some modern debugging tools deliberately fill freed memory with this value as a way of converting heisenbugs into Bohr bugs. As in "Your program is DEADBEEF" (meaning gone, aborted, flushed from memory); if you start from an odd half-word boundary, of course, you have BEEFDEAD

Burimi: http://www.deadbeef.com/

Tung! =)
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Asembli :: RE: Konvertimi i C kodit n� Asembli kod p�r MIPS

Autori: beta
Postuar: Sun Jan 30, 2005 5:26 pm (GMT -5)
Tema P�rgjigjet: 2

gdk, qe ky link kishte me qene i perdorshem

http://www.tac.dk/cgi-bin/info2www?(gcc.info)MIPS%20Options

pra me flag-in "-mcpu=CPU TYPE"

btw, tash e lexova nintendo 64 po perdorka, MIPS procesora.

beta

Asembli :: RE: Konvertimi i C kodit n� Asembli kod p�r MIPS

Autori: BassReFLeX
Postuar: Sun Jan 30, 2005 8:23 am (GMT -5)
Tema P�rgjigjet: 2

Tung,

Gjuha programore C e ka funksionin e vecant per egzekutimin e komandave te Assemblerit. Problemi eshte qe kjo vlene per AT&T sintaksen, e jo per MIPS . Sidoqoft, nese dikuj i duhet, ajo mund te behet keshtu:

Kodi:

__asm //Shembull
{
mov eax, 01h
int 10h
}

_________________

Outlaws & Angels

Asembli :: Konvertimi i C kodit n� Asembli kod p�r MIPS

Autori: gdk
Titulli: Konvertimi i C kodit n� Asembli kod p�r MIPS
Postuar: Sun Jan 30, 2005 12:17 am (GMT -5)
Tema P�rgjigjet: 2

Djema,

Mos din dikush ndonj� m�nyr� t� konvertimit t� C kodit n� Asembli kod p�r MIPS arkitektur�. E di q� gcc e b�n konvertimin e C kodit n� Asembli kod (gcc -S kodi.c), por kodi q� prodhohet nga gcc-ja �sht� p�r IA-32 arkitektur� e jo p�r MIPS.

Tung!
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Asembli :: RE: Shfaqja e vler�s heksadecimale n� MIPS

Autori: gdk
Titulli: 01292005-2220-PIT
Postuar: Sat Jan 29, 2005 10:30 pm (GMT -5)
Tema P�rgjigjet: 2

Beta,

M�nyra si e kishte zgjedh profesori yt k�t� problem ishte shum� interesant. M�nyra se si e kam b�r� un� konvertimin �sht� pak sa e njejt�, p�rveq q� kodi im p�rmban� nj� matric� t� inicializuar. Ja ku �sht�:

Kodi:

# Computer Organization and Design <CS235>
# La Roche College, Pittsburgh, PA
# Genc Doko
# Description: Printing the hexadecimal input of an integer array.

.data

iArray: .byte 10, 20, 30, 40, 50, 60 # Declaration of integer array.
lArray: .asciiz "A", "B", "C", "D", "E", "F"
c: .asciiz "\n" # "c" is declared for line break.

.text
.globl main
main: la $t0, iArray # Address of iArray is loaded in $t0 --> lower limit.
la $t1, iArray # Address of iArray is loaded in $t1
addi $t1, $t1, 6 # $t1 is increased for 6 --> upper limit.
la $t2, lArray # Address of lArray is loaded in $t2

loop: li $v0, 1 # "1" is used for printing integers.
lb $a0, 0($t0) # A byte of the iArray is stored in $a0.
srl $a0, $a0, 4 # A right bitwise shifting of 4 bits is done for $a0.
syscall
lb $a0, 0($t0) # The same byte of the iArray is stored in $a0.
and $a0, $a0, 0xF # $a0 is AND-ed with 0xF in order to display the first 4 bits.

beq $a0, 10, printA
beq $a0, 11, printB
beq $a0, 12, printC
beq $a0, 13, printD
beq $a0, 14, printE
beq $a0, 15, printF
j output

printA: li $v0, 4
la $a0, 0($t2)
j output

printB: li $v0, 4
la $a0, 2($t2)
j output

printC: li $v0, 4
la $a0, 4($t2)
j output

printD: li $v0, 4
la $a0, 6($t2)
j output

printE: li $v0, 4
la $a0, 8($t2)
j output

printF: li $v0, 4
la $a0, 10($t2)
j output

output: syscall
li $v0, 4 # "4" is used for printing strings.
la $a0, c # Value of line break is loaded to $a0.
syscall
addi $t0, $t0, 1 # $t0 is increased by 1.
blt $t0, $t1, loop # compares if $t0 is less than $t1.

nop
jr $ra
nop
.end

Klasa n� t� cil�n duhet t� programojm� n� Asembli p�r MIPS arkitektur� �sht� Computer Organization and Design, dhe jam duke e marr� k�t� semester.

Tung!
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