ref: 60d4aaf6f0e28fb4893c8d14e0fd86f5a2fb76e1
dir: /span_arm64.s/
TEXT dospan+0(SB), 1, $-4 MOV pbase+8(FP), R1 MOVW s+16(FP), R2 MOVW t+24(FP), R3 MOVW sstep+32(FP), R4 MOVW tstep+40(FP), R5 MOVW spancount+48(FP), R6 MOVW cachewidth+56(FP), R7 LSRW $16, R3, R9 LSRW $16, R2, R8 _l: SUBW $1, R6 MADDW R7, R9, R8, R8 ADDW R5, R3 MOVBU (R1)[R8], R10 ADDW R4, R2 MOVBU R10, 1(R0)! LSRW $16, R3, R9 LSRW $16, R2, R8 CBNZ R6, _l RETURN