CPU registers and flags are in known startup states
For a full/standalone program, we can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF
http://asm.sourceforge.net/articles/startup.html - in _start in a static executable, most registers are zero other than the stack pointer, to avoid leaking info into a fresh process. pop will load argc which is a small non-negative integer, 1 if run normally from a shell with no args.
Same applies for x86-64 processes on Linux.
CPU registers and flags are in known startup states
For a full/standalone program, we can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
CPU registers and flags are in known startup states
For a full/standalone program, we can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF
http://asm.sourceforge.net/articles/startup.html - in _start in a static executable, most registers are zero other than the stack pointer, to avoid leaking info into a fresh process. pop will load argc which is a small non-negative integer, 1 if run normally from a shell with no args.
Same applies for x86-64 processes on Linux.
CPU registers and flags are in known startup states
WeFor a full/standalone program, we can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
CPU registers and flags are in known startup states
We can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
CPU registers and flags are in known startup states
For a full/standalone program, we can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
#CPU registers and flags are in known startup states
CPU registers and flags are in known startup states
We can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
#CPU registers and flags are in known startup states
We can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html
CPU registers and flags are in known startup states
We can assume that the CPU is in a known and documented default state based on platform and OS.
For example:
DOS http://www.fysnet.net/yourhelp.htm
Linux x86 ELF http://asm.sourceforge.net/articles/startup.html