x64 assembler library in C++20

This library can generate x64 assembly instructions in C++ application.

C++ code:

Assembler as;

as.rdtsc();
as.nop();
as.label("test");
as.int3();
as.inc(Reg::Rsp);
as.neg(Reg::Rdi);
as.ja("test");
as.ret(100);
as.neg(Memory::base_index_disp(Reg::Rax, Reg::Rcx, 4, 0x123));
as.with_operand_size(OperandSize::Bits8, [&]() {
  as.neg(Memory::base(Reg::Rdi));
  as.neg(Reg::Rbx);
});
as.mov(Memory::base(Reg::Rdx), Reg::Rcx);
as.mov(Reg::R12, Memory::base(Reg::Rdx));
as.add(Reg::Rdx, Reg::Rdi);
as.label("other_label");
as.shr(Memory::base(Reg::Rdx), Reg::Rcx);
as.mov(Memory::label("test"), 55);
as.add(Reg::Rdx, 448);
as.mov(Reg::Rdx, 1235678918881ll);
as.call("other_label");

Generated assembly:

00000000  0F31              rdtsc
00000002  90                nop
00000003  CC                int3
00000004  48FFC4            inc rsp
00000007  48F7DF            neg rdi
0000000A  0F87F3FFFFFF      ja near 0x3
00000010  C26400            ret 0x64
00000013  48F79C8823010000  neg qword [rax+rcx*4+0x123]
0000001B  F61F              neg byte [rdi]
0000001D  F6DB              neg bl
0000001F  48890A            mov [rdx],rcx
00000022  4C8B22            mov r12,[rdx]
00000025  4803D7            add rdx,rdi
00000028  48D32A            shr qword [rdx],cl
0000002B  48C705CDFFFFFF37  mov qword [rel 0x3],0x37
         -000000
00000036  4881C2C0010000    add rdx,0x1c0
0000003D  48BAE1F833B41F01  mov rdx,0x11fb433f8e1
         -0000
00000047  E8DCFFFFFF        call 0x28

Usage:

Clone library to your project dependencies folder and add following lines to CMakeLists.txt:

add_subdirectory("deps/asmlib")
target_link_libraries(${PROJECT_NAME} asmlib)