The name `simulator` is both long and non-descriptive.
Since the `db48x.pgm` and `db48x.pg5` cannot be confused with either
`db48x.app` (macOS), `db48x.exe` (Losedows) or `db48x` (Linux/BSD), it
seems safe to rename the simulator as `db48x`.
Also always build the files with lowercase names.
Fixes: #417
Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>
The DM32 .pg5 program needs not show up in commitable files.
The version.h file is generated and should not show up either.
Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>
Various portability fixes to help building on Linux.
This includes a pre-build Intel binary library for Linux x86_64.
Signed-off-by: Christophe de Dinechin <christophe@dinechin.org>
