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Are the mingw32 and/or cygwin32 binaries on objsw.com ?? If not, when do you think these will be available ? Brendan Simon. Scott Howard wrote: > David Williams wrote: > > > > Hi all, > > > > There was a discussion on this mailing list about a month and a half ago > > about having an interrupt attribute for functions. I am coding some > > interrupt handlers for a 68000 target (DragonBall) and would like to use > > the interrupt attribute for functions that will be interrupt handlers. > > > > 1. Is this supported for 68K targets? > > Our next release of gcc (based upon egcs-1.1.2) will include support for > the interrupt attribute, on 68k targets. > > > 2. Is there already some source code for set and get interrupt vectors for > > 68K targets? > > The easiest way to 'get' and 'set' vectors is to simply define the > vector table as an array of pointer to function returning void, eg > > extern void (*exceptiontable) (void) [256]; > > To set a vector, let's say the 'divide by zero' vector: > > exceptiontable [5] = MyDivByZeroHandler; > > (I suppose it's obvious, but the table must be located in RAM for this > to work.) > > Our next compiler release will include a linker script for ROM-based 68k > systems which (among other things) creates an exception vector table in > ROM. If user code defines a handler for a particular vector, then the > linker will set that vector to the address of the user code; otherwise > the vector is set to the address of a user-defined 'default' handler. > This avoids having to 'get' and 'set' vectors at run time. > > Scott Howard > scott@objsw.com > _______________________________________________ > New CrossGCC FAQ: http://www.objsw.com/CrossGCC > _______________________________________________ > To remove yourself from the crossgcc list, send > mail to crossgcc-request@cygnus.com with the > text 'unsubscribe' (without the quotes) in the > body of the message. _______________________________________________ New CrossGCC FAQ: http://www.objsw.com/CrossGCC _______________________________________________ To remove yourself from the crossgcc list, send mail to crossgcc-request@cygnus.com with the text 'unsubscribe' (without the quotes) in the body of the message.