projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 71bf0b21 KT |
1 | / C runtime startoff including monitoring |
| 2 | ||
| 3 | cbufs = 150. | |
| 4 | ||
| 5 | .globl _monitor | |
| 6 | .globl _sbrk | |
| 7 | .globl _main | |
| 8 | .globl _exit | |
| 9 | .globl _etext | |
| 10 | .comm countbase,2 | |
| 11 | ||
| 12 | .comm savr5,2 | |
| 13 | ||
| 14 | start: | |
| 15 | setd | |
| 16 | mov sp,r0 | |
| 17 | mov (r0),-(sp) | |
| 18 | tst (r0)+ | |
| 19 | mov r0,2(sp) | |
| 20 | ||
| 21 | mov $_etext,r1 | |
| 22 | sub $eprol,r1 | |
| 23 | add $7,r1 | |
| 24 | ash $-3,r1 | |
| 25 | bic $!17777,r1 | |
| 26 | mov $cbufs,-(sp) | |
| 27 | add $3*[cbufs+1],r1 | |
| 28 | mov r1,-(sp) | |
| 29 | asl r1 | |
| 30 | mov r1,-(sp) | |
| 31 | jsr pc,_sbrk | |
| 32 | tst (sp)+ | |
| 33 | cmp r0,$-1 | |
| 34 | beq 9f | |
| 35 | mov r0,-(sp) | |
| 36 | add $6,r0 | |
| 37 | mov r0,countbase | |
| 38 | mov $_etext,-(sp) | |
| 39 | mov $eprol,-(sp) | |
| 40 | jsr pc,_monitor | |
| 41 | add $10.,sp | |
| 42 | jsr pc,_main | |
| 43 | cmp (sp)+,(sp)+ | |
| 44 | jsr pc,_exit | |
| 45 | ||
| 46 | 9: | |
| 47 | mov $2,r0 | |
| 48 | sys write; 8f; 9f-8f | |
| 49 | ||
| 50 | .data; 8: <No space for monitor buffer\n>; 9:.even; .text | |
| 51 | ||
| 52 | _exit: | |
| 53 | mov r5,-(sp) | |
| 54 | mov sp,r5 | |
| 55 | clr -(sp) | |
| 56 | jsr pc,_monitor | |
| 57 | tst (sp)+ | |
| 58 | mov 4(r5),r0 | |
| 59 | sys exit | |
| 60 | eprol: |