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New posts in assembly
What does the colon : mean in x86 assembly GAS syntax as in %ds:(%bx)?
Sep 24, 2022
assembly
syntax
x86
gnu-assembler
real-mode
What do we mean by instruction size?
Nov 19, 2022
assembly
arm
machine-code
instructions
thumb
What are the benefits of using smaller registers, e.g. al vs eax / rax
Apr 03, 2019
assembly
compiler-construction
Linux x64: why does r10 come before r8 and r9 in syscalls?
Jul 11, 2014
linux
assembly
x86-64
system-calls
calling-convention
How do ASCII Adjust and Decimal Adjust instructions work?
Dec 27, 2020
assembly
x86
decimal
instructions
bcd
How to detect architecture in NASM at compile time to have one source code for both x64 and x86?
May 31, 2018
assembly
x86
preprocessor
nasm
x86-64
The binary of opcode in assembly
Aug 19, 2018
assembly
x86
opcode
What decides memory address for global variables. Compiler or Operating system?
Jul 09, 2019
c
assembly
x86-16
Branch to an address using GCC inline ARM asm
Jun 27, 2022
gcc
assembly
arm
inline-assembly
How should the byte sequence 0x40 0x55 be interpreted by an x86-64 emulator?
Jan 05, 2020
assembly
x86-64
How does test and je/jne work
May 04, 2019
debugging
assembly
x86
lldb
What does mov bl do in assembly
Mar 17, 2022
c++
assembly
x86
Can my CPU execute multiple NOPs per CPU cycle?
Oct 21, 2022
c
performance
assembly
nop
why do repe and repne do the same before movsb?
Nov 02, 2022
assembly
x86
repeat
machine-code
instructions
Default registers and segments value on booting x86 machine
Nov 04, 2022
assembly
memory-management
x86-16
bootloader
bios
Why do some 8051 program ends with the code "LOOP: SJMP LOOP"
Oct 27, 2022
assembly
8051
8086 assembly on DOSBox: Bug with idiv instruction?
Jul 19, 2020
assembly
x86
x86-16
tasm
dosbox
When to use ADOX instead of ADCX?
Sep 15, 2022
assembly
x86
adx
x86 register flag abbreviations
Jun 04, 2022
assembly
x86
masm
eflags
What does ZTV,ZTS,ZTI mean in the result of gdb x/nfu "vtable_address"?
Jun 02, 2022
c++
assembly
gdb
vtable
name-mangling
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