Multiline Ultimate Assembler (an x64dbg plugin)
Multiline Ultimate Assembler is a multiline (and ultimate) assembler (and disassembler) plugin for x64dbg and OllyDbg. It’s a perfect tool for modifying and extending a compiled executable functionality, writing code caves, etc.
Source code:
https://github.com/m417z/Multiline-Ultimate-Assembler
multiasm.rar (475.86 kB, changelog)