In message 1132812293.2550.20.camel@PC6 you wrote:
Thank you for your reply ,but I think you misunderstood my question.
No, it is you who does not understand.
What I said is the extern interrupts, and now I have know that U-BOOT is no support the interrupts, so it doesn't need the vectors.
You are wrong. You can use interrupts in U-Boot. There is even code in the examples directory which does so.
and here are the external interrupts:
./74xx_7xx/interrupts.c:62:external_interrupt(struct pt_regs *regs) ./74xx_7xx/interrupts.c:64: puts("external_interrupt (oops!)\n"); ./74xx_7xx/start.S:122: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc5xx/interrupts.c:75:void external_interrupt (struct pt_regs *regs) ./mpc5xx/start.S:208: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc5xxx/interrupts.c:48:external_interrupt(struct pt_regs *regs) ./mpc5xxx/interrupts.c:50: puts("external_interrupt (oops!)\n"); ./mpc5xxx/start.S:206: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc8220/interrupts.c:47:void external_interrupt (struct pt_regs *regs) ./mpc8220/interrupts.c:49: puts ("external_interrupt (oops!)\n"); ./mpc8220/start.S:167: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc824x/interrupts.c:56:void external_interrupt (struct pt_regs *regs) ./mpc824x/start.S:218: STD_EXCEPTION(EXC_OFF_EXTERNAL, ExtInterrupt, external_interrupt) ./mpc8260/interrupts.c:177:void external_interrupt (struct pt_regs *regs) ./mpc8260/start.S:277: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc83xx/interrupts.c:54:void external_interrupt (struct pt_regs *regs) ./mpc83xx/start.S:219: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./mpc8xx/interrupts.c:68:void external_interrupt (struct pt_regs *regs) ./mpc8xx/start.S:222: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt) ./nios/interrupts.c:103:void external_interrupt (struct pt_regs *regs) ./nios/traps.S:318: * The default handler passes control to external_interrupt(). So trap ./nios/traps.S:323: * external_interrupt(). This lets the underflow and overflow handlers ./nios/traps.S:398: pfx %hi(external_interrupt@h) ./nios/traps.S:399: movi %o1, %lo(external_interrupt@h) ./nios/traps.S:400: pfx %xhi(external_interrupt@h) ./nios/traps.S:401: movhi %o1, %xlo(external_interrupt@h) ./nios2/exceptions.S:83: movhi r3, %hi(external_interrupt) ./nios2/exceptions.S:84: ori r3, r3, %lo(external_interrupt) ./nios2/interrupts.c:121:void external_interrupt (struct pt_regs *regs) ./ppc4xx/interrupts.c:199:void external_interrupt(struct pt_regs *regs) ./ppc4xx/interrupts.c:222:} /* external_interrupt CONFIG_440GX */ ./ppc4xx/interrupts.c:226:void external_interrupt(struct pt_regs *regs) ./ppc4xx/start.S:783: STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)