diff --git a/pkgs/development/compilers/xa/xa.nix b/pkgs/development/compilers/xa/xa.nix
new file mode 100644
index 000000000000..163b0bba513b
--- /dev/null
+++ b/pkgs/development/compilers/xa/xa.nix
@@ -0,0 +1,52 @@
+{ lib
+, stdenv
+, fetchurl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "xa";
+  version = "2.3.11";
+
+  src = fetchurl {
+    url = "https://www.floodgap.com/retrotech/xa/dists/${pname}-${version}.tar.gz";
+    hash = "sha256-MvIWTJnjBSGOmSlwhW3Y4jCbXLasR1jXsq/jv+vJAS0=";
+  };
+
+  dontConfigure = true;
+
+  postPatch = ''
+    substitueInPlace \
+      --replace "DESTDIR" "PREFIX" \
+      --replace "CC = gcc" "CC = cc" \
+      --replace "LDD = gcc" "LDD = ld" \
+      --replace "CFLAGS = -O2" "CFLAGS ?=" \
+      --replace "LDFLAGS = -lc" "LDFLAGS ?= -lc" \
+      Makefile
+  '';
+
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  meta = with lib; {
+    homepage = "https://www.floodgap.com/retrotech/xa/";
+    description = "Andre Fachat's open-source 6502 cross assembler";
+    longDescription = ''
+      xa is a high-speed, two-pass portable cross-assembler. It understands
+      mnemonics and generates code for NMOS 6502s (such as 6502A, 6504, 6507,
+      6510, 7501, 8500, 8501, 8502 ...), CMOS 6502s (65C02 and Rockwell R65C02)
+      and the 65816.
+
+      Key amongst its features:
+
+      - C-like preprocessor (and understands cpp for additional feature support)
+      - rich expression syntax and pseudo-op vocabulary
+      - multiple character sets
+      - binary linking
+      - supports o65 relocatable objects with a full linker and relocation
+        suite, as well as "bare" plain binary object files
+      - block structure for label scoping
+    '';
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = with platforms; unix;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 25d8bd207219..b97c3c4d5e90 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -26217,6 +26217,8 @@ in
     gtk = gtk2;
   };
 
+  xa = callPackage ../development/compilers/xa/xa.nix { };
+
   x11basic = callPackage ../development/compilers/x11basic {
     autoconf = buildPackages.autoconf269;
   };