/* SPDX-License-Identifier: GPL-2.0 */ /* * memcmp for PowerPC32 * * Copyright (C) 1996 Paul Mackerras. * */ #include #include .text _GLOBAL(memcmp) srawi. r7, r5, 2 /* Divide len by 4 */ mr r6, r3 beq- 3f mtctr r7 li r7, 0 1: lwzx r3, r6, r7 lwzx r0, r4, r7 addi r7, r7, 4 cmplw cr0, r3, r0 bdnzt eq, 1b bne 5f 3: andi. r3, r5, 3 beqlr cmplwi cr1, r3, 2 blt- cr1, 4f lhzx r3, r6, r7 lhzx r0, r4, r7 addi r7, r7, 2 subf. r3, r0, r3 beqlr cr1 bnelr 4: lbzx r3, r6, r7 lbzx r0, r4, r7 subf. r3, r0, r3 blr 5: li r3, 1 bgtlr li r3, -1 blr EXPORT_SYMBOL(memcmp)