Frank Wille updated VASM 1.5 and vlink 0.13 which are two components of the compiler package vbcc.

vasm is a portable and retargetable assembler to create linkable objects in various formats or absolute code. Multiple CPU-, syntax and output-modules can be selected.

vlink is a portable linker, written in ANSI-C, that can read and write a wide range of object- and executable file formats. It can be used to link a specific target format from several different input file formats, or for converting, stripping and manipulating files.

You can download vasm here and vlink here.