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Annotation of 41BSD/libc/sys/setjmp.s, revision 1.1.1.1

1.1       root        1: # C library -- setjmp, longjmp
                      2: 
                      3: #      longjmp(a,v)
                      4: # will generate a "return(v)" from
                      5: # the last call to
                      6: #      setjmp(a)
                      7: # by restoring r6-pc from 'a'
                      8: # and doing a return.
                      9: #
                     10: 
                     11: .globl _setjmp
                     12: .globl _longjmp
                     13: 
                     14:        .align  1
                     15: _setjmp:
                     16:        .word   0x0000
                     17:        movl    4(ap),r0
                     18:        movq    r6,(r0)+
                     19:        movq    r8,(r0)+
                     20:        movq    r10,(r0)+
                     21:        movq    8(fp),(r0)+             # ap, fp
                     22:        movab   8(ap),(r0)+             # sp
                     23:        movl    16(fp),(r0)             # pc
                     24:        clrl    r0
                     25:        ret
                     26: 
                     27:        .align  1
                     28: _longjmp:
                     29:        .word   0x0000
                     30:        movl    8(ap),r0  #  return(v)
                     31:        movl    4(ap),r1
                     32:        movq    (r1)+,r6
                     33:        movq    (r1)+,r8
                     34:        movq    (r1)+,r10
                     35:        movq    (r1)+,r12
                     36:        movl    (r1)+,sp
                     37:        tstl    r0
                     38:        bneq    L1
                     39:        movzbl  $1,r0
                     40: L1:
                     41:        jmp     *(r1)

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