strcmp.s

来自「内核linux2.4.20,可跟rtlinux3.2打补丁 组成实时linux系」· S 代码 · 共 28 行

/*
 *  arch/s390/lib/strcmp.S
 *    S390 strcmp routine
 *
 *  S390 version
 *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
 *    Author(s): Martin Schwidefsky ([e-mail]),
 */

/*
 * R2 = address of compare string
 * R3 = address of test string
 */
        .globl   strcmp
strcmp:
        SGR     0,0
        SGR     1,1
        CLST    2,3
        JO      .-4
        JE      strcmp_equal
        IC      0,0(3)
        IC      1,0(2)
        SGR     1,0
strcmp_equal:
        LGR     2,1
        BR      14