projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 6b23496e DR |
1 | / C runtime startoff including monitoring |
| 2 | ||
| 3 | cbufs = 300. | |
| 4 | exit = 1. | |
| 5 | write = 4. | |
| 6 | signal = 48. | |
| 7 | ||
| 8 | .globl _monitor | |
| 9 | .globl _sbrk | |
| 10 | .globl _main | |
| 11 | .globl _exit | |
| 12 | .globl _environ | |
| 13 | .globl _etext | |
| 14 | .globl __cleanup | |
| 15 | .globl countbase | |
| 16 | .globl fptrap | |
| 17 | ||
| 18 | ||
| 19 | start: | |
| 20 | sys signal; 4; fptrap | |
| 21 | setd | |
| 22 | mov 2(sp),r0 | |
| 23 | clr -2(r0) | |
| 24 | mov sp,r0 | |
| 25 | sub $4,sp | |
| 26 | mov 4(sp),(sp) | |
| 27 | tst (r0)+ | |
| 28 | mov r0,2(sp) | |
| 29 | 1: | |
| 30 | tst (r0)+ | |
| 31 | bne 1b | |
| 32 | cmp r0,*2(sp) | |
| 33 | blo 1f | |
| 34 | tst -(r0) | |
| 35 | 1: | |
| 36 | mov r0,4(sp) | |
| 37 | mov r0,_environ | |
| 38 | ||
| 39 | mov $_etext,r1 | |
| 40 | sub $eprol,r1 | |
| 41 | add $7,r1 | |
| 42 | ash $-3,r1 | |
| 43 | bic $!17777,r1 | |
| 44 | mov $cbufs,-(sp) | |
| 45 | add $3*[cbufs+1],r1 | |
| 46 | mov r1,-(sp) | |
| 47 | asl r1 | |
| 48 | mov r1,-(sp) | |
| 49 | jsr pc,_sbrk | |
| 50 | tst (sp)+ | |
| 51 | cmp r0,$-1 | |
| 52 | beq 9f | |
| 53 | mov r0,-(sp) | |
| 54 | add $6,r0 | |
| 55 | mov r0,countbase | |
| 56 | mov $_etext,-(sp) | |
| 57 | mov $eprol,-(sp) | |
| 58 | jsr pc,_monitor | |
| 59 | add $10.,sp | |
| 60 | jsr pc,_main | |
| 61 | cmp (sp)+,(sp)+ | |
| 62 | mov r0,(sp) | |
| 63 | jsr pc,_exit | |
| 64 | ||
| 65 | 9: | |
| 66 | mov $2,r0 | |
| 67 | sys write; 8f; 9f-8f | |
| 68 | ||
| 69 | .data; 8: <No space for monitor buffer\n>; 9:.even; .text | |
| 70 | ||
| 71 | _exit: | |
| 72 | mov r5,-(sp) | |
| 73 | mov sp,r5 | |
| 74 | jsr pc,__cleanup | |
| 75 | clr -(sp) | |
| 76 | jsr pc,_monitor | |
| 77 | tst (sp)+ | |
| 78 | mov 4(r5),r0 | |
| 79 | sys exit | |
| 80 | eprol: | |
| 81 | .bss | |
| 82 | _environ: | |
| 83 | .=.+2 | |
| 84 | countbase: | |
| 85 | .=.+2 | |
| 86 | .data | |
| 87 | .=.+2 |