mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 08:40:07 +00:00
22 lines
521 B
ArmAsm
22 lines
521 B
ArmAsm
|
.text
|
||
|
.align 4
|
||
|
.globl ___mpn_add_n
|
||
|
___mpn_add_n:
|
||
|
mov 0,g6 # clear carry-save register
|
||
|
cmpo 1,0 # clear cy
|
||
|
|
||
|
Loop: subo 1,g3,g3 # update loop counter
|
||
|
ld (g1),g5 # load from s1_ptr
|
||
|
addo 4,g1,g1 # s1_ptr++
|
||
|
ld (g2),g4 # load from s2_ptr
|
||
|
addo 4,g2,g2 # s2_ptr++
|
||
|
cmpo g6,1 # restore cy from g6, relies on cy being 0
|
||
|
addc g4,g5,g4 # main add
|
||
|
subc 0,0,g6 # save cy in g6
|
||
|
st g4,(g0) # store result to res_ptr
|
||
|
addo 4,g0,g0 # res_ptr++
|
||
|
cmpobne 0,g3,Loop # when branch is taken, clears C bit
|
||
|
|
||
|
mov g6,g0
|
||
|
ret
|