ASCII 字符空间 (0x20) 以不同的方式显示

hi, I'm playing with an ELF that tests the validity of a password, and I noticed that the space character is not correctly displayed/interpreted/returned by r2.

here's what I see: assembly showLineNumbers [0x00001080] > aaaa ... [0x00001080] > iM [Main] vaddr=0x00001200 paddr=0x00001200 [0x00001080] > s 0x00001200 [0x00001200] > pdf ... ; string "Ar7hUr_c._Cl4rk3" string "Ar7hUr_c._Cl4rk3" │ │└─> 0x00001259 c645d041 mov byte [s2], 0x41 ; 'A' │ │ 0x0000125d c645d172 mov byte [var_2fh], 0x72 ; 'r' │ │ 0x00001261 c645d237 mov byte [var_2eh], 0x37 ; '7' │ │ 0x00001265 c645d368 mov byte [var_2dh], 0x68 ; 'h' │ │ 0x00001269 c645d455 mov byte [var_2ch], 0x55 ; 'U' │ │ 0x0000126d c645d572 mov byte [var_2bh], 0x72 ; 'r' │ │ 0x00001271 c645d620 mov byte [var_2ah], 0x20 ; '@' │ │ 0x00001275 c645d763 mov byte [var_29h], 0x63 ; 'c' │ │ 0x00001279 c645d82e mov byte [var_28h], 0x2e ; '.' │ │ 0x0000127d c645d920 mov byte [var_27h], 0x20 ; '@' │ │ 0x00001281 c645da43 mov byte [var_26h], 0x43 ; 'C' │ │ 0x00001285 c645db6c mov byte [var_25h], 0x6c ; 'l' │ │ 0x00001289 c645dc34 mov byte [var_24h], 0x34 ; '4' │ │ 0x0000128d c645dd72 mov byte [var_23h], 0x72 ; 'r' │ │ 0x00001291 c645de6b mov byte [var_22h], 0x6b ; 'k' │ │ 0x00001295 c645df33 mov byte [var_21h], 0x33 ; '3' │ │ 0x00001299 488b45f0 mov rax, qword [var_10h] │ │ 0x0000129d 488b7808 mov rdi, qword [rax + 8] ; const char *s1 │ │ 0x000012a1 488d75d0 lea rsi, [s2] ; const char *s2 │ │ 0x000012a5 e896fdffff call sym.imp.strcmp ; int strcmp(const char *s1, const char *s2) ...