1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * linux/arch/arm/lib/floppydma.S 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 1995, 1996 Russell King 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun#include <linux/linkage.h> 8*4882a593Smuzhiyun#include <asm/assembler.h> 9*4882a593Smuzhiyun .text 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun .global floppy_fiqin_end 12*4882a593SmuzhiyunENTRY(floppy_fiqin_start) 13*4882a593Smuzhiyun subs r9, r9, #1 14*4882a593Smuzhiyun ldrbgt r12, [r11, #-4] 15*4882a593Smuzhiyun ldrble r12, [r11], #0 16*4882a593Smuzhiyun strb r12, [r10], #1 17*4882a593Smuzhiyun subs pc, lr, #4 18*4882a593Smuzhiyunfloppy_fiqin_end: 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun .global floppy_fiqout_end 21*4882a593SmuzhiyunENTRY(floppy_fiqout_start) 22*4882a593Smuzhiyun subs r9, r9, #1 23*4882a593Smuzhiyun ldrbge r12, [r10], #1 24*4882a593Smuzhiyun movlt r12, #0 25*4882a593Smuzhiyun strble r12, [r11], #0 26*4882a593Smuzhiyun subsle pc, lr, #4 27*4882a593Smuzhiyun strb r12, [r11, #-4] 28*4882a593Smuzhiyun subs pc, lr, #4 29*4882a593Smuzhiyunfloppy_fiqout_end: 30