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1.1 root 1: # "@(#)i_indx_s.s 5.1 (Berkeley) 11/3/86"
2:
3: .data
4: .text
5: LL0:.align 1
6: .globl _i_indx
7: .set MASK__, 0x1c0c
8: .data
9: .text
10: _i_indx: .word MASK__
11:
12: movl 4(fp), r3 /* s = a */
13: movl 8(fp), r10 /* b */
14: movl 16(fp), r12 /* lb */
15: addl3 r3, 12(fp), r11 /* end = a + la */
16: subl2 r12, r11 /* end -= lb */
17: loop:
18: cmpl r3, r11 /* while (s <= end) */
19: jgtr out0 /* not found - return(0) */
20: movl r3, r0 /* current s in string */
21: movl r10, r1 /* b */
22: movl r12, r2 /* lb */
23: cmps3 /* if strings equal */
24: jeql out /* return index */
25:
26: incl r3 /* s++ */
27: jbr loop
28:
29: out:
30: incl r3 /* index = ++s - a */
31: subl3 4(fp), r3, r0
32: ret
33:
34: out0:
35: clrl r0
36: ret
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