Assembly Language for Beginners

1.20. ARRAYS Let’s load it into OllyDbg, and trace until all 30 elements are written: Figure 1.90:OllyDbg: after restoring the v ...

1.20. ARRAYS Trace until the function end: Figure 1.91:OllyDbg:EIPhas been restored, but OllyDbg can’t disassemble at 0x15 Now p ...

1.20. ARRAYS is0x14in hexadecimal). ThenRETgets executed, which is effectively equivalent toPOP EIPinstruction. TheRETinstructio ...

1.20. ARRAYS (gdb) The register values are slightly different than in win32 example, since the stack layout is slightly differen ...

1.20. ARRAYS mov DWORD PTR [esp], ebx mov eax, DWORD PTR gs:20 ; canary mov DWORD PTR [ebp-12], eax xor eax, eax call _snprintf ...

1.20. ARRAYS Optimizing Xcode 4.6.3 (LLVM) (Thumb-2 mode) Let’s get back to our simple array example (1.20.1 on page 268), again ...

1.20. ARRAYS MOVS R0, #0x1C STR R0, [SP,#0x64+var_2C] MOVS R0, #0x1E STR R0, [SP,#0x64+var_28] MOVS R0, #0x20 STR R0, [SP,#0x64+ ...

1.20. ARRAYS Or use the C99 standard feature [ISO/IEC 9899:TC3 (C C99 standard), (2007)6.7.5/2], and it works like alloca()(1.7. ...

1.20. ARRAYS The code is very simple: The firstMOVSXDinstruction copies a 32-bit value fromECX(wheremonthargument is passed) to ...

1.20. ARRAYS DCB "June",0 DCB "July",0 DCB "August",0 DCB "September",0 DCB "October",0 DCB "November",0 DCB "December",0 AREA | ...

1.20. ARRAYS .xword .LC11 .xword .LC12 .xword .LC13 .LC2: .string "January" .LC3: .string "February" .LC4: .string "March" .LC5: ...

1.20. ARRAYS aMarch: .ascii "March" aApril: .ascii "April" aMay: .ascii "May" aJune: .ascii "June" aJuly: .ascii "July" aAugust: ...

1.20. ARRAYS ; .data:off_140011000 aFebruary_1 db 'February',0 ; DATA XREF: .data:0000000140011008 align 4 aMarch_1 db 'March',0 ...

1.20. ARRAYS This mechanism is probably the same in all compilers. Here is what GCC does: Listing 1.243: Optimizing GCC 4.9 x64 ...

1.20. ARRAYS }; It’s very important to understand, that, despite similar syntax, this is different from two-dimensional arrays, ...

1.20. ARRAYS Row filling example Let’s fill the second row with these values 0..3: Listing 1.244: Row filling example include &l ...

1.20. ARRAYS Access two-dimensional array as one-dimensional We can be easily assured that it’s possible to access a two-dimensi ...

1.20. ARRAYS ret 0 get_by_coordinates2 ENDP array$ = 8 a$ = 16 b$ = 24 get_by_coordinates1 PROC movsxd rax, r8d movsxd r9, edx a ...

1.20. ARRAYS x86 We get (MSVC 2010): Listing 1.249: MSVC 2010 _DATA SEGMENT COMM _a:DWORD:01770H _DATA ENDS PUBLIC _insert _TEXT ...

1.20. ARRAYS ARM + Non-optimizing Xcode 4.6.3 (LLVM) (Thumb mode) Listing 1.251: Non-optimizing Xcode 4.6.3 (LLVM) (Thumb mode) ...