> -----Original Message----- > From: > [email protected] > [mailto:avr-gcc-list-bounces+eweddington=cso.atmel....@nongnu. > org] On Behalf Of Richard F > Sent: Tuesday, February 03, 2009 5:11 AM > To: [email protected] > Subject: [avr-gcc-list] Overlong interrupt vector table > > I'm working on a small application in an ATMEGA48p, and need > a few extra bytes of code space. > This may have been answered before, but I can't find a reference... > Does anyone know why there are 40 vectors where Atmel specify 26 - > What are the last 14 items (that look like vectors) used for, > and how can I make use of this "wasted space"? > (Is it a general purpose vector table for the largest possible AVR?) > Thx
The vector table code is located in the startup code in avr-libc. > <scheduler+0x26> > 36: 73 c2 rjmp .+1254 ; 0x51e > <scheduler+0x2a> > 38: 76 c2 rjmp .+1260 ; 0x526 > <scheduler+0x32> > 3a: 7d c2 rjmp .+1274 ; 0x536 > <scheduler+0x42> > 3c: 7f c2 rjmp .+1278 ; 0x53c > <scheduler+0x48> > 3e: 83 c2 rjmp .+1286 ; 0x546 > <scheduler+0x52> > 40: 82 c2 rjmp .+1284 ; 0x546 > <scheduler+0x52> > 42: 81 c2 rjmp .+1282 ; 0x546 > <scheduler+0x52> > 44: 80 c2 rjmp .+1280 ; 0x546 > <scheduler+0x52> > 46: 7f c2 rjmp .+1278 ; 0x546 > <scheduler+0x52> > 48: 7e c2 rjmp .+1276 ; 0x546 > <scheduler+0x52> > 4a: 7d c2 rjmp .+1274 ; 0x546 > <scheduler+0x52> > 4c: 84 c2 rjmp .+1288 ; 0x556 > <scheduler+0x62> > 4e: 83 c2 rjmp .+1286 ; 0x556 > <scheduler+0x62> I have no idea where you are getting these <scheduler+xxxx> ids from. Perhaps you're using an RTOS? But they certainly don't come from the startup code in avr-libc. _______________________________________________ AVR-GCC-list mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
