In preperation for the config file work suggested by Rob, I've checked in
some work towards storing the running config of the emulator in a single
place.
ArcemConfig.c and ArcemConfig.h
It currently stores the memory size (tested and working) and processor
variant (that hopefully I'll check the actual backend of in soon). And
I'll add the MFM (st506) HD sizes, extnrom and hostfs locations over the
next couple of days. Also I'll look into tidying the current ReadConfig.c
and ReadConfig.h files and possibly absorb the functions into ArcemConfig
if need be.
There's a commandline parser for setting the options, but this work
doesn't enforce that as the only method of setting options.
Michael Dales suggested an alternate GUI method of setting options on
Mac OS X, this method would set the values in the hArcemConfig struct
in a similar way to the commandline parser. Note that any config system
employed needs to go off before we enter the dagstandalone() function
(that's the function called directly from main() and WinMain()) as
dagstandalone() immediatley sets up the memory size.
The commandline parser doesn't work on the windows build (but does on X,
Mac OS X and RISC OS) as I couldn't figure out the normal way of
converting the the windows Unicode commandline into ascii/utf8 argc/argv.
Here's the bit of text from the top of ArcemConfig.h that describes how
to use it.
-------------------------------------------------------------------
FUTURE VERSIONS will absorb the code from ReadConfig.c
The Structure hArcemConfig can be filled in by means other
than the Command Line parser as needed on a platform by
platform basis.
Using a configuration value in the rest of the emulator code
------------------------------------------------------------
Use the global variable 'hArcemConfig'. Its properties are defined
in the struct ArcemConfig_s below. Use enumeration values or #defines
for all properties that support that.
Adding a config value to the emulator
-------------------------------------
1) Add a value of the correct type to ArcemConfig.
If possible use an enumeration or #defines for
its values.
2) Make sure the value is initialised to its default
value in ArcemConfig_SetupDefaults()
3) Add a way of setting it to alternate values in
ArcemConfig_ParseCommandLine()
4) If ways of setting the config other than Command Line
are implimented add code for parsing and setting values
there too.
-------------------------------------------------------------------
Peter
--
Peter Howkins
[EMAIL PROTECTED]
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