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Annotation of 41BSD/sys/stand/relsrt0.s, revision 1.1.1.1

1.1       root        1: #      relsrt0.s       4.2     11/9/80
                      2: 
                      3: # Startup code for standalone system
                      4: # Self-relocating version used by boot itself.
                      5: 
                      6:        .globl  _main
                      7:        .globl  __rtt
                      8:        .globl  _end
                      9:        .globl  _edata
                     10: 
                     11:        .set    PHYSUBA,0x20006000      # uba 0
                     12: 
                     13:        .set    HIGH,31         # mask for total disable
                     14: 
                     15:        .word   0x0
                     16:        mtpr    $HIGH,$IPL              # just in case
                     17:        movl    $RELOC,sp
                     18:        movl    $1,*$PHYSUBA+4          # init
                     19: ubic:
                     20:        movl    *$PHYSUBA,r0            # while ((up->uba_cnfgr & UBIC) == 0)
                     21:        bitl    $0x10000,r0             #       continue;
                     22:        jeql    ubic
                     23:        movl    aend,r0
                     24: clr:
                     25:        clrl    (r0)+
                     26:        cmpl    r0,sp
                     27:        jlss    clr
                     28:        movc3   aend,*$0,(sp)           # relocate
                     29:        jmp     *astart
                     30: start:
                     31:        calls   $0,_main
                     32:        movl    $RELOC,sp
                     33:        jmp     start
                     34: 
                     35: __rtt:
                     36:        .word   0x0
                     37:        movl    $RELOC,sp
                     38:        jmp     *$start
                     39: 
                     40:        .data
                     41: astart:        .long   start
                     42: aend:  .long   _end-RELOC

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