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Annotation of 43BSDTahoe/ucb/lisp/franz/vax/crt0.s, revision 1.1.1.1

1.1       root        1: # C runtime startoff
                      2: # $Header: /na/franz/franz/vax/RCS/crt0.s,v 1.1 83/03/27 18:39:57 jkf Exp $
                      3: 
                      4:        .set    exit,1
                      5: .globl _exit
                      6: .globl start
                      7: .globl _main
                      8: .globl _environ
                      9: 
                     10: start:
                     11:        .word   0x0000
                     12:        subl2   $8,sp
                     13:        movl    8(sp),(sp)  #  argc
                     14:        movab   12(sp),r0
                     15:        movl    r0,4(sp)  #  argv
                     16: L1:
                     17:        tstl    (r0)+  #  null args term ?
                     18:        bneq    L1
                     19:        cmpl    r0,*4(sp)  #  end of 'env' or 'argv' ?
                     20:        blss    L2
                     21:        tstl    -(r0)  # envp's are in list
                     22: L2:
                     23:        movl    r0,8(sp)  #  env
                     24: #      movl    r0,_environ  #  indir is 0 if no env ; not 0 if env
                     25:        calls   $3,_main
                     26:        pushl   r0
                     27:        calls   $1,_exit
                     28:        chmk    $exit
                     29:        .data
                     30: _environ:      .space  4

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