vectors.s

完整的Bell实验室的嵌入式文件系统TFS

    .file   "vectors.s"

/*****************************************************************************
 *
 * Register definitions correspond to offsets into the
 * regtbl[] array...
 */
    .equ PC,    0
    .equ SR,    4
    .equ A0,    8
    .equ A1,    12
    .equ A2,    16
    .equ A3,    20
    .equ A4,    24
    .equ A5,    28
    .equ A6,    32
    .equ SP,    36
    .equ D0,    40
    .equ D1,    44
    .equ D2,    48
    .equ D3,    52
    .equ D4,    56
    .equ D5,    60
    .equ D6,    64
    .equ D7,    68


/*****************************************************************************
 #
 # Vectors:
 # The code beginning at vbase is used by execption.c as a table of
 # vector handlers where the size of each member is "vnext - vbase".
 # This scheme keeps the C-code that initializes the vector handlers to
 # a minimum ; but still provides full-and-unique coverage of every
 # possible exception on the 68k family.
 # THe function gotoexception is used to stuff values into regtbl[] for
 # use by the general purpose exception() function.
 */
    .global gotoexception
gotoexception:
    move.l  %a0,(regtbl+A0)
    move.l  %a1,(regtbl+A1)
    move.l  %a2,(regtbl+A2)
    move.l  %a3,(regtbl+A3)
    move.l  %a4,(regtbl+A4)
    move.l  %a5,(regtbl+A5)
    move.l  %a6,(regtbl+A6)
    move.l  %d0,(regtbl+D0)
    move.l  %d1,(regtbl+D1)
    move.l  %d2,(regtbl+D2)
    move.l  %d3,(regtbl+D3)
    move.l  %d4,(regtbl+D4)
    move.l  %d5,(regtbl+D5)
    move.l  %d6,(regtbl+D6)
    move.l  %d7,(regtbl+D7)
    move.l  %sp,%a0
    move.l  %a0,(regtbl+SP)
    move.l  %sp@,%a0
    move.l  %a0,(regtbl+SR)
    move.l  %sp@(4),%a0
    move.l  %a0,(regtbl+PC)
    jsr exception   


/*****************************************************************************/

    .global vbase, vnext, vbase128, vnext128
vbase:
    move.b  #2,%d0
    jmp gotoexception
vnext:
    move.b  #3,%d0
    jmp gotoexception
    move.b  #4,%d0
    jmp gotoexception
    move.b  #5,%d0
    jmp gotoexception
    move.b  #6,%d0
    jmp gotoexception
    move.b  #7,%d0
    jmp gotoexception
    move.b  #8,%d0
    jmp gotoexception
    move.b  #9,%d0
    jmp gotoexception
    move.b  #10,%d0
    jmp gotoexception
    move.b  #11,%d0
    jmp gotoexception
    move.b  #12,%d0
    jmp gotoexception
    move.b  #13,%d0
    jmp gotoexception
    move.b  #14,%d0
    jmp gotoexception
    move.b  #15,%d0
    jmp gotoexception
    move.b  #16,%d0
    jmp gotoexception
    move.b  #17,%d0
    jmp gotoexception
    move.b  #18,%d0
    jmp gotoexception
    move.b  #19,%d0
    jmp gotoexception
    move.b  #20,%d0
    jmp gotoexception
    move.b  #21,%d0
    jmp gotoexception
    move.b  #22,%d0
    jmp gotoexception
    move.b  #23,%d0
    jmp gotoexception
    move.b  #24,%d0
    jmp gotoexception
    move.b  #25,%d0
    jmp gotoexception
    move.b  #26,%d0
    jmp gotoexception
    move.b  #27,%d0
    jmp gotoexception
    move.b  #28,%d0
    jmp gotoexception
    move.b  #29,%d0
    jmp gotoexception
    move.b  #30,%d0
    jmp gotoexception
    move.b  #31,%d0
    jmp gotoexception
    move.b  #32,%d0
    jmp gotoexception
    move.b  #33,%d0
    jmp gotoexception
    move.b  #34,%d0
    jmp gotoexception
    move.b  #35,%d0
    jmp gotoexception
    move.b  #36,%d0
    jmp gotoexception
    move.b  #37,%d0
    jmp gotoexception
    move.b  #38,%d0
    jmp gotoexception
    move.b  #39,%d0
    jmp gotoexception
    move.b  #40,%d0
    jmp gotoexception
    move.b  #41,%d0
    jmp gotoexception
    move.b  #42,%d0
    jmp gotoexception
    move.b  #43,%d0
    jmp gotoexception
    move.b  #44,%d0
    jmp gotoexception
    move.b  #45,%d0
    jmp gotoexception
    move.b  #46,%d0
    jmp gotoexception
    move.b  #47,%d0
    jmp gotoexception
    move.b  #48,%d0
    jmp gotoexception
    move.b  #49,%d0
    jmp gotoexception
    move.b  #50,%d0
    jmp gotoexception
    move.b  #51,%d0
    jmp gotoexception
    move.b  #52,%d0
    jmp gotoexception
    move.b  #53,%d0
    jmp gotoexception
    move.b  #54,%d0
    jmp gotoexception
    move.b  #55,%d0
    jmp gotoexception
    move.b  #56,%d0
    jmp gotoexception
    move.b  #57,%d0
    jmp gotoexception
    move.b  #58,%d0
    jmp gotoexception
    move.b  #59,%d0
    jmp gotoexception
    move.b  #60,%d0
    jmp gotoexception
    move.b  #61,%d0
    jmp gotoexception
    move.b  #62,%d0
    jmp gotoexception
    move.b  #63,%d0
    jmp gotoexception
    move.b  #64,%d0
    jmp gotoexception
    move.b  #65,%d0
    jmp gotoexception
    move.b  #66,%d0
    jmp gotoexception
    move.b  #67,%d0
    jmp gotoexception
    move.b  #68,%d0
    jmp gotoexception
    move.b  #69,%d0
    jmp gotoexception
    move.b  #70,%d0
    jmp gotoexception
    move.b  #71,%d0
    jmp gotoexception
    move.b  #72,%d0
    jmp gotoexception
    move.b  #73,%d0
    jmp gotoexception
    move.b  #74,%d0
    jmp gotoexception
    move.b  #75,%d0
    jmp gotoexception
    move.b  #76,%d0
    jmp gotoexception
    move.b  #77,%d0
    jmp gotoexception
    move.b  #78,%d0
    jmp gotoexception
    move.b  #79,%d0
    jmp gotoexception
    move.b  #80,%d0
    jmp gotoexception
    move.b  #81,%d0
    jmp gotoexception
    move.b  #82,%d0
    jmp gotoexception
    move.b  #83,%d0
    jmp gotoexception
    move.b  #84,%d0
    jmp gotoexception
    move.b  #85,%d0
    jmp gotoexception
    move.b  #86,%d0
    jmp gotoexception
    move.b  #87,%d0
    jmp gotoexception
    move.b  #88,%d0
    jmp gotoexception
    move.b  #89,%d0
    jmp gotoexception
    move.b  #90,%d0
    jmp gotoexception
    move.b  #91,%d0
    jmp gotoexception
    move.b  #92,%d0
    jmp gotoexception
    move.b  #93,%d0
    jmp gotoexception
    move.b  #94,%d0
    jmp gotoexception
    move.b  #95,%d0
    jmp gotoexception
    move.b  #96,%d0
    jmp gotoexception
    move.b  #97,%d0
    jmp gotoexception
    move.b  #98,%d0
    jmp gotoexception
    move.b  #99,%d0
    jmp gotoexception
    move.b  #100,%d0
    jmp gotoexception
    move.b  #101,%d0
    jmp gotoexception
    move.b  #102,%d0
    jmp gotoexception
    move.b  #103,%d0
    jmp gotoexception
    move.b  #104,%d0
    jmp gotoexception
    move.b  #105,%d0
    jmp gotoexception
    move.b  #106,%d0
    jmp gotoexception
    move.b  #107,%d0
    jmp gotoexception
    move.b  #108,%d0
    jmp gotoexception
    move.b  #109,%d0
    jmp gotoexception
    move.b  #110,%d0
    jmp gotoexception
    move.b  #111,%d0
    jmp gotoexception
    move.b  #112,%d0
    jmp gotoexception
    move.b  #113,%d0
    jmp gotoexception
    move.b  #114,%d0
    jmp gotoexception
    move.b  #115,%d0
    jmp gotoexception
    move.b  #116,%d0
    jmp gotoexception
    move.b  #117,%d0
    jmp gotoexception
    move.b  #118,%d0
    jmp gotoexception
    move.b  #119,%d0
    jmp gotoexception
    move.b  #120,%d0
    jmp gotoexception
    move.b  #121,%d0
    jmp gotoexception
    move.b  #122,%d0
    jmp gotoexception
    move.b  #123,%d0
    jmp gotoexception
    move.b  #124,%d0
    jmp gotoexception
    move.b  #125,%d0
    jmp gotoexception
    move.b  #126,%d0
    jmp gotoexception
    move.b  #127,%d0
    jmp gotoexception
vbase128:
    move.b  #128,%d0
    jmp gotoexception
vnext128:
    move.b  #129,%d0
    jmp gotoexception
    move.b  #130,%d0
    jmp gotoexception
    move.b  #131,%d0
    jmp gotoexception
    move.b  #132,%d0
    jmp gotoexception
    move.b  #133,%d0
    jmp gotoexception
    move.b  #134,%d0
    jmp gotoexception
    move.b  #135,%d0
    jmp gotoexception
    move.b  #136,%d0
    jmp gotoexception
    move.b  #137,%d0
    jmp gotoexception
    move.b  #138,%d0
    jmp gotoexception
    move.b  #139,%d0
    jmp gotoexception
    move.b  #140,%d0
    jmp gotoexception
    move.b  #141,%d0
    jmp gotoexception
    move.b  #142,%d0
    jmp gotoexception
    move.b  #143,%d0
    jmp gotoexception
    move.b  #144,%d0
    jmp gotoexception
    move.b  #145,%d0
    jmp gotoexception
    move.b  #146,%d0
    jmp gotoexception
    move.b  #147,%d0
    jmp gotoexception
    move.b  #148,%d0
    jmp gotoexception
    move.b  #149,%d0
    jmp gotoexception
    move.b  #150,%d0
    jmp gotoexception
    move.b  #151,%d0
    jmp gotoexception
    move.b  #152,%d0
    jmp gotoexception
    move.b  #153,%d0
    jmp gotoexception
    move.b  #154,%d0
    jmp gotoexception
    move.b  #155,%d0
    jmp gotoexception
    move.b  #156,%d0
    jmp gotoexception
    move.b  #157,%d0
    jmp gotoexception
    move.b  #158,%d0
    jmp gotoexception
    move.b  #159,%d0
    jmp gotoexception
    move.b  #160,%d0
    jmp gotoexception
    move.b  #161,%d0
    jmp gotoexception
    move.b  #162,%d0
    jmp gotoexception
    move.b  #163,%d0
    jmp gotoexception
    move.b  #164,%d0
    jmp gotoexception
    move.b  #165,%d0
    jmp gotoexception
    move.b  #166,%d0
    jmp gotoexception
    move.b  #167,%d0
    jmp gotoexception
    move.b  #168,%d0
    jmp gotoexception
    move.b  #169,%d0
    jmp gotoexception
    move.b  #170,%d0
    jmp gotoexception
    move.b  #171,%d0
    jmp gotoexception
    move.b  #172,%d0
    jmp gotoexception
    move.b  #173,%d0
    jmp gotoexception
    move.b  #174,%d0
    jmp gotoexception
    move.b  #175,%d0
    jmp gotoexception
    move.b  #176,%d0
    jmp gotoexception
    move.b  #177,%d0
    jmp gotoexception
    move.b  #178,%d0
    jmp gotoexception
    move.b  #179,%d0
    jmp gotoexception
    move.b  #180,%d0
    jmp gotoexception
    move.b  #181,%d0
    jmp gotoexception
    move.b  #182,%d0
    jmp gotoexception
    move.b  #183,%d0
    jmp gotoexception
    move.b  #184,%d0
    jmp gotoexception
    move.b  #185,%d0
    jmp gotoexception
    move.b  #186,%d0
    jmp gotoexception
    move.b  #187,%d0
    jmp gotoexception
    move.b  #188,%d0
    jmp gotoexception
    move.b  #189,%d0
    jmp gotoexception
    move.b  #190,%d0
    jmp gotoexception
    move.b  #191,%d0
    jmp gotoexception
    move.b  #192,%d0
    jmp gotoexception
    move.b  #193,%d0
    jmp gotoexception
    move.b  #194,%d0
    jmp gotoexception
    move.b  #195,%d0
    jmp gotoexception
    move.b  #196,%d0
    jmp gotoexception
    move.b  #197,%d0
    jmp gotoexception
    move.b  #198,%d0
    jmp gotoexception
    move.b  #199,%d0
    jmp gotoexception
    move.b  #200,%d0
    jmp gotoexception
    move.b  #201,%d0
    jmp gotoexception
    move.b  #202,%d0
    jmp gotoexception
    move.b  #203,%d0
    jmp gotoexception
    move.b  #204,%d0
    jmp gotoexception
    move.b  #205,%d0
    jmp gotoexception
    move.b  #206,%d0
    jmp gotoexception
    move.b  #207,%d0
    jmp gotoexception
    move.b  #208,%d0
    jmp gotoexception
    move.b  #209,%d0
    jmp gotoexception
    move.b  #210,%d0
    jmp gotoexception
    move.b  #211,%d0
    jmp gotoexception
    move.b  #212,%d0
    jmp gotoexception
    move.b  #213,%d0
    jmp gotoexception
    move.b  #214,%d0
    jmp gotoexception
    move.b  #215,%d0
    jmp gotoexception
    move.b  #216,%d0
    jmp gotoexception
    move.b  #217,%d0
    jmp gotoexception
    move.b  #218,%d0
    jmp gotoexception
    move.b  #219,%d0
    jmp gotoexception
    move.b  #220,%d0
    jmp gotoexception
    move.b  #221,%d0
    jmp gotoexception
    move.b  #222,%d0
    jmp gotoexception
    move.b  #223,%d0
    jmp gotoexception
    move.b  #224,%d0
    jmp gotoexception
    move.b  #225,%d0
    jmp gotoexception
    move.b  #226,%d0
    jmp gotoexception
    move.b  #227,%d0
    jmp gotoexception
    move.b  #228,%d0
    jmp gotoexception
    move.b  #229,%d0
    jmp gotoexception
    move.b  #230,%d0
    jmp gotoexception
    move.b  #231,%d0
    jmp gotoexception
    move.b  #232,%d0
    jmp gotoexception
    move.b  #233,%d0
    jmp gotoexception
    move.b  #234,%d0
    jmp gotoexception
    move.b  #235,%d0
    jmp gotoexception
    move.b  #236,%d0
    jmp gotoexception
    move.b  #237,%d0
    jmp gotoexception
    move.b  #238,%d0
    jmp gotoexception
    move.b  #239,%d0
    jmp gotoexception
    move.b  #240,%d0
    jmp gotoexception
    move.b  #241,%d0
    jmp gotoexception
    move.b  #242,%d0
    jmp gotoexception
    move.b  #243,%d0
    jmp gotoexception
    move.b  #244,%d0
    jmp gotoexception
    move.b  #245,%d0
    jmp gotoexception
    move.b  #246,%d0
    jmp gotoexception
    move.b  #247,%d0
    jmp gotoexception
    move.b  #248,%d0
    jmp gotoexception
    move.b  #249,%d0
    jmp gotoexception
    move.b  #250,%d0
    jmp gotoexception
    move.b  #251,%d0
    jmp gotoexception
    move.b  #252,%d0
    jmp gotoexception
    move.b  #253,%d0
    jmp gotoexception
    move.b  #254,%d0
    jmp gotoexception
    move.b  #255,%d0
    jmp gotoexception