Hello All,
How can i convert x86 assembly to ARM(in IOS)? or how write assembly code for IOS to call a syscall.
*** UPDATE
Another question : How can i write an ARM assembly code and create binary file in OS X and run in iPhone? can i use iphone SDK as? i use that tool but got an error
UPDATE ***
for example :
How can i convert x86 assembly to ARM(in IOS)? or how write assembly code for IOS to call a syscall.
*** UPDATE
Another question : How can i write an ARM assembly code and create binary file in OS X and run in iPhone? can i use iphone SDK as? i use that tool but got an error
UPDATE ***
for example :
Code:
;File: hello.asm;Build: nasm -f macho hello.asm&& gcc -o hello hello.o
SECTION .rodata
hello.msg db 'Hello, World!',0x0a,0x00
SECTION .text
extern _printf ; could also use _puts...
GLOBAL _main
; aligns esp to 16 bytes in preparation for calling a C library function; arg is number of bytes to pad forfunction arguments,this should be a multiple of 16;unless you are using push/pop to load args%macro clib_prolog 1
mov ebx, esp ; remember current esp
and esp,0xFFFFFFF0; align to next16byte boundary (could be zero offset!)sub esp,12; skip ahead 12 so we can store original esp
push ebx ; store esp (16 bytes aligned again)sub esp,%1; pad for arguments (make conditional?)%endmacro
; arg must match most recent call to clib_prolog%macro clib_epilog 1
add esp,%1; remove arg padding
pop ebx ;get original esp
mov esp, ebx ; restore
%endmacro
_main:;set up stack frame
push ebp
mov ebp, esp
push ebx
clib_prolog 16
mov dword [esp], hello.msg
call _printf
; can make more clib calls here...
clib_epilog 16
; tear down stack frame
pop ebx
mov esp, ebp
pop ebp
mov eax,0;setreturn code
ret
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