glibc/sysdeps/i960/addmul_1.s

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ArmAsm
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1995-10-16 09:18:40 +08:00
.text
.align 4
.globl ___mpn_mul_1
___mpn_mul_1:
subo g2,0,g2
shlo 2,g2,g4
subo g4,g1,g1
subo g4,g0,g13
mov 0,g0
cmpo 1,0 # clear C bit on AC.cc
Loop: ld (g1)[g2*4],g5
emul g3,g5,g6
ld (g13)[g2*4],g5
addc g0,g6,g6 # relies on that C bit is clear
addc 0,g7,g7
addc g5,g6,g6 # relies on that C bit is clear
st g6,(g13)[g2*4]
addc 0,g7,g0
addo g2,1,g2
cmpobne 0,g2,Loop # when branch is taken, clears C bit
ret