Online x86 / x64 Assembler and Disassembler

[Rip Cord]

a convenient site for making or checking patches and gadgets:
https://defuse.ca/online-x86-assembler.htm#disassembly
for x86 or x64

enter instruction(s):
pop rdx

results displayed in common formats

Assembly

Raw Hex (zero bytes in bold):  5A
String Literal:  "\x5A"
Array Literal:   { 0x5A }

0:  5a					  pop	rdx

Dissembler:
enter machine code:
5AC3

Disassembly

Raw Hex (zero bytes in bold):  5AC3
String Literal:  "\x5A\xC3"
Array Literal:  { 0x5A, 0xC3 }
Disassembly:
0:  5a					  pop	rdx
1:  c3					  ret

enter machine code:
43 59 C3

Disassembly

Raw Hex (zero bytes in bold):  4359C3
String Literal:  "\x43\x59\xC3"
Array Literal:  { 0x43, 0x59, 0xC3 }

Disassembly:
0:  43 59				   rex.XB pop r9
2:  c3					  ret