The resulting code using the C version generates this assembly instructions:
mov _fp,#0xF0 mov (_fp + 1),#0xFF . . . mov dpl,_fp mov dph,(_fp + 1) lcall __sdcc_call_dptr That is 15 bytes of code memory and two bytes of RAM. On the other hand, the assembly call (within C) lcall 0xfff0 takes only 3 bytes of code memory. Jesus At 02:25 PM 18/01/2009, you wrote: >Or in C > >void (*fp)(void) = 0xfff0; >fp(); > > > > Try: > > > > _asm lcall 0xfff0 _endasm; > > > > > > At 10:59 AM 18/01/2009, Gudjon I. Gudjonsson wrote: > > > > >Hi > > > Sorry once again if the question is silly but I am trying to call the > > >PGM_MTP at address 0xFFF0 > > >function in the in application bootloader for the NXP 8051 > microcontrollers. > > >The problem is that I don't know how to put an absolute address on a > > >function. I know how to absolute address variables but not functions. Can > > >someone help me. > > > > > >Thanks > > >Gudjon > > > > > >----------------------------------------------------------------- > ------------- > > >This SF.net email is sponsored by: > > >SourcForge Community > > >SourceForge wants to tell your story. > > >http://p.sf.net/sfu/sf-spreadtheword > > >_______________________________________________ > > >Sdcc-user mailing list > > >Sdcc-user@lists.sourceforge.net > > >https://lists.sourceforge.net/lists/listinfo/sdcc-user > > > > > > > ------------------------------------------------------------------------------ > > This SF.net email is sponsored by: > > SourcForge Community > > SourceForge wants to tell your story. > > http://p.sf.net/sfu/sf-spreadtheword > > _______________________________________________ > > Sdcc-user mailing list > > Sdcc-user@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/sdcc-user > > > > > >------------------------------------------------------------------------------ >This SF.net email is sponsored by: >SourcForge Community >SourceForge wants to tell your story. >http://p.sf.net/sfu/sf-spreadtheword >_______________________________________________ >Sdcc-user mailing list >Sdcc-user@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/sdcc-user ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
