> Hi, > > I want to make an interrupt-vector-table for the cortex-M3 processor. > When I read the docs of the processor good, the start of that table > needs to be on a multiple of $100 bytes in memory. Since with > FPC there > seems no way of getting that table in flash I need to have it in RAM. > But how can I have the table at those $100-bytes multiple ? I > found an > ALIGN directive, but that's limited to 32 bytes. > Any suggestions ? > I had hoped that the first variable would be at the first location in > RAM and the first variable in the startup-code is that vector-table. > Unfortunatly, my hope was in vain. > > Any help ? >
Handcrafted alignment: var ReservedBlock:array[0..$1FF] of byte; IntVectors:pointer; begin IntVectors:=pointer((ptruint(@ReservedBlock[0])+$100) and not $ff); End; Or dynamic: Var pReservedBlock,IntVectors:pointer; begin Getmem(pReservedBlock,$200); IntVectors:=pointer((ptruint(pReservedBlock)+$100) and not $ff); End; Ludo _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
