projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f86463af BJ |
1 | # srt0.s 4.2 11/9/80 |
| 2 | ||
| 3 | # Startup code for standalone system | |
| 4 | # Non-relocating version -- for programs which are loaded by boot | |
| 5 | ||
| 6 | .globl _edata | |
| 7 | .globl _main | |
| 8 | .globl __rtt | |
| 9 | ||
| 10 | .set PHYSUBA,0x20006000 # uba 0 | |
| 11 | ||
| 12 | .set HIGH,31 # mask for total disable | |
| 13 | ||
| 14 | .word 0x0 | |
| 15 | mtpr $HIGH,$IPL # just in case | |
| 16 | movl $RELOC-0x2000,sp | |
| 17 | movl $1,PHYSUBA+4 # init | |
| 18 | ubic: | |
| 19 | movl *$PHYSUBA,r0 # while ((up->uba_cnfgr & UBIC) == 0) | |
| 20 | bitl $0x10000,r0 # continue; | |
| 21 | jeql ubic | |
| 22 | movab _edata,r0 | |
| 23 | clr: | |
| 24 | clrl (r0)+ | |
| 25 | cmpl r0,sp | |
| 26 | jlss clr | |
| 27 | start: | |
| 28 | calls $0,_main | |
| 29 | jmp start | |
| 30 | ||
| 31 | __rtt: | |
| 32 | .word 0x0 | |
| 33 | jmp start |