usr/src/sys/stand/tpsrt0.s

#       tpsrt0.s        4.4     11/11/80

# Startup code for standalone system
# Non-relocating version -- for programs which are loaded by boot

        .globl  _edata
        .globl  _end
        .globl  _main
        .globl  __rtt

        .set    PHYSUBA,0x20006000      # uba 0

        .set    HIGH,31         # mask for total disable

        .word   0x0
        mtpr    $HIGH,$IPL              # just in case
        movl    $RELOC-0x2000,sp
        movl    $1,PHYSUBA+4            # init
ubic:
        movl    *$PHYSUBA,r0            # while ((up->uba_cnfgr & UBIC) == 0)
        bitl    $0x10000,r0             #       continue;
        jeql    ubic
        movab   _edata,r0
        movab   _end,r1
clr:
        clrl    (r0)+
        cmpl    r0,r1
        jlss    clr
start:
        calls   $0,_main
        ret

__rtt:
        .word   0x0
        jmp     start