Commit | Line | Data |
---|---|---|
8cd657f4 JF |
1 | .globl _dodiv |
2 | # | |
3 | # routine to destructively divide array representation of a bignum by | |
4 | # 1000000000 | |
5 | # | |
6 | # invocation: | |
7 | # remainder = dodiv(top,bottom) | |
8 | # int *top, *bottom; | |
9 | # where *bottom is the address of the biggning of the array, *top is | |
10 | # the top of the array. | |
11 | # | |
12 | # register assignments: | |
13 | # r0 = carry | |
14 | # r1 & r2 = 64bit temporary | |
15 | # r3 = pointer | |
16 | # | |
17 | _dodiv: .word 0 | |
18 | clrl r0 #no carry to begin. | |
19 | movl 8(ap),r3 #get pointer to array. | |
20 | loop: emul $0x40000000,r0,(r3),r1 | |
21 | ediv $1000000000,r1,(r3),r0 | |
22 | acbl 4(ap),$4,r3,loop | |
23 | ret |