Greetings from a new member of your mailing list. I have used Gnu Pascal for some time on a Windows 10 64-bit environment. I decided to try it on a Linux Mint 20 Cinnamon machine with x86_64 processor I downloaded gpc-2.1-with-gcc.i686-pc-linux-gnu.tar.gz to /home/peter/software and installed using: cd / tar xzf /home/peter/software/gpc-2.1-with-gcc.i686-pc-linux-gnu.tar.gz I tried the simplest of programs: Hello.c: program hello; begin writeln ('Hello Pascal world'); readln end. and compiled by gpc -o Hello Hello.pas to get, to my dismay, not as on Windows but on Linux: peter@peter-Akoya-E6237:~/Pete/Pascal$ gpc -o Hello Hello.pas /tmp/ccnPqfBD.s: Assembler messages: /tmp/ccnPqfBD.s:15: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:19: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:20: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:21: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:22: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:23: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:24: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:25: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:35: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:36: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:37: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:38: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:50: Error: invalid instruction suffix for `pop' /tmp/ccnPqfBD.s:66: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:73: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:80: Error: invalid instruction suffix for `pop' /tmp/ccnPqfBD.s:88: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:92: Error: invalid instruction suffix for `pop' /tmp/ccnPqfBD.s:103: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:108: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:110: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:112: Error: invalid instruction suffix for `push' /tmp/ccnPqfBD.s:123: Error: invalid instruction suffix for `pop' peter@peter-Akoya-E6237:~/Pete/Pascal$ What am I doing wrong? Can you please advise? -- Peter Williams petesweet27rr@gmail.com