GHDLDocumentation

GHDL needs some tweaks to run on 64bits operating system.

Set Up

On Ubuntu / Debian like system, install these librairies :

sudo apt-get install zlib1g-dev lib32z1-dev lib32z1 lib32ncurses5

Install the last GHDL version : http://ghdl.free.fr/site/uploads/Main/ghdl-i686-linux-latest.tar

Usage

In order to use ghdl on a 64bits operating system, we must tell the assembler, the compiler and the linker to use 32bits architecture.

Example with hello world :

ghdl -a -Wc,-m32 -Wa,--32 --ieee=synopsys -fexplicit hello_world.vhdl
ghdl -e -Wa,--32 -Wl,-m32 --ieee=synopsys -fexplicit hello_world

Tips

Create some aliases to get a friendly development environment :

alias ghdl_compile='ghdl -a -Wc,-m32 -Wa,--32 --ieee=synopsys -fexplicit'
alias ghdl_simulate='ghdl -e -Wa,--32 -Wl,-m32 --ieee=synopsys -fexplicit'
alias ghdl_clean="rm *.o *.cf"