Getting RDTSC to decompile neatly in a x86 dll

[hukasu]

I am working on a 32-bit DLL and it has calls to RDTSC which uses EAX:EDX for return, but the decompiled code does not follow neatly the listings

        10012d2e 0f 31           RDTSC
        10012d30 89 44 24 0c     MOV        dword ptr [ESP + start_timestamp],EAX
        10012d34 89 54 24 10     MOV        dword ptr [ESP + start_timestamp+0x4],EDX

gets turned into

  uVar3 = rdtsc();
  iVar8 = (int)((ulonglong)uVar3 >> 0x20);
  uVar6 = (uint)uVar3;

I've been trying to get it to look nicer on the operations that use 64-bit integers, changing the temporary variables types and stuff, but couldn't manage yet

Ghidra information

Ghidra Version: 12.0.4
Ghidra Release: NIX
Ghidra Build Date: 2026-Mar-03
Ghidra Revision: e40ed13
Ghidra Development Mode: false
OS Name: Linux
OS Arch: amd64
OS Version: 6.18.34
OS Pretty Name: NixOS 26.05 (Yarara)
Java Vendor: N/A
Java Version: 21.0.12
Java Home: /nix/store/v3n6jl0sxn64g97c5kxzriwj4fv6qnjh-openjdk-21.0.12+2/lib/openjdk

Decompiled code

readEntireFileDecompilation.xml

[Wall-AF]

I have the same problem with x86 16-bit longs/timestamps etc. using DX:AX etc.!