Error invalid instruction suffix for push' ghdl user

g++ -m32
push byte x86
gcc 32 or 64-bit
gcc i386
gcc x86movl
gcc compiler 32-bit
clang 32-bit

In Linux it is necessary to install UMHDL and the external tools GHDL and /home/myworkspace/e~and_gate.s:40: Error: invalid instruction suffix for 'push The error you're getting comes out from a very simple fact : the push instruction in 32-bit mode accepts 16-bit and 32-bit immediates as Hi, Do not use -Wa for -i, as this is not accepted. Error: invalid instruction suffix for `push' work/tb_lm_cpu.s:466: Error: invalid instruction suffix Expected behaviour Normal compilation. How to reproduce? Here is my code for Adder.vhdl library IEEE; use IEEE.std_logic_1164.all; entity adder is -- `i0` @1138-4EB I was wrong: there are tests in ghdlsynth-beta. But is it possible to trigger them after a push in ghdl ? I don't think so.