vectors.a51

来自「FPGA、CPLD芯片的usb数据下载线」· A51 代码 · 共 177 行

;;; -*- asm -*-
;;;
;;;-----------------------------------------------------------------------------
;;; Interrupt vectors
;;;-----------------------------------------------------------------------------
;;; Code taken from USRP2 firmware (GNU Radio Project), version 3.0.2,
;;; Copyright 2003 Free Software Foundation, Inc.
;;;-----------------------------------------------------------------------------
;;; This code is part of usbjtag. usbjtag is free software; you can redistribute
;;; it and/or modify it under the terms of the GNU General Public License as
;;; published by the Free Software Foundation; either version 2 of the License,
;;; or (at your option) any later version. usbjtag is distributed in the hope
;;; that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
;;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.  You should have received a
;;; copy of the GNU General Public License along with this program in the file
;;; COPYING; if not, write to the Free Software Foundation, Inc., 51 Franklin
;;; St, Fifth Floor, Boston, MA  02110-1301  USA
;;;-----------------------------------------------------------------------------

;;; N.B. This object module must come first in the list of modules

        .module vectors

;;; ----------------------------------------------------------------
;;;                  standard FX2 interrupt vectors
;;; ----------------------------------------------------------------

        .area CSEG (CODE)
        .area GSINIT (CODE)
        .area CSEG (CODE)
__standard_interrupt_vector::
__reset_vector::
        ljmp        s_GSINIT
        
        ;; 13 8-byte entries.  We point them all at __isr_nop
        ljmp        __isr_nop        ; 3 bytes
        .ds        5                ; + 5 = 8 bytes for vector slot
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5
        ljmp        __isr_nop
        .ds        5

__isr_nop::
        reti

;;; ----------------------------------------------------------------
;;; the FIFO/GPIF autovector.  14 4-byte entries.
;;; must start on a 128 byte boundary.
;;; ----------------------------------------------------------------
        
        . = __reset_vector + 0x0080
                
__fifo_gpif_autovector::
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        
        ljmp        __isr_nop
        nop        

        
;;; ----------------------------------------------------------------
;;; the USB autovector.  32 4-byte entries.
;;; must start on a 256 byte boundary.
;;; ----------------------------------------------------------------

        . = __reset_vector + 0x0100
        
__usb_autovector::
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop
        ljmp        __isr_nop
        nop