iomd_io_asm.S revision 1.1.6.2
1 1.1.6.2 thorpej /* $NetBSD: iomd_io_asm.S,v 1.1.6.2 2002/01/10 19:38:04 thorpej Exp $ */ 2 1.1.6.2 thorpej 3 1.1.6.2 thorpej /* 4 1.1.6.2 thorpej * Copyright (c) 1997 Mark Brinicombe. 5 1.1.6.2 thorpej * Copyright (c) 1997 Causality Limited. 6 1.1.6.2 thorpej * All rights reserved. 7 1.1.6.2 thorpej * 8 1.1.6.2 thorpej * Redistribution and use in source and binary forms, with or without 9 1.1.6.2 thorpej * modification, are permitted provided that the following conditions 10 1.1.6.2 thorpej * are met: 11 1.1.6.2 thorpej * 1. Redistributions of source code must retain the above copyright 12 1.1.6.2 thorpej * notice, this list of conditions and the following disclaimer. 13 1.1.6.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.6.2 thorpej * notice, this list of conditions and the following disclaimer in the 15 1.1.6.2 thorpej * documentation and/or other materials provided with the distribution. 16 1.1.6.2 thorpej * 3. All advertising materials mentioning features or use of this software 17 1.1.6.2 thorpej * must display the following acknowledgement: 18 1.1.6.2 thorpej * This product includes software developed by Mark Brinicombe. 19 1.1.6.2 thorpej * 4. The name of the company nor the name of the author may be used to 20 1.1.6.2 thorpej * endorse or promote products derived from this software without specific 21 1.1.6.2 thorpej * prior written permission. 22 1.1.6.2 thorpej * 23 1.1.6.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 1.1.6.2 thorpej * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 1.1.6.2 thorpej * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 1.1.6.2 thorpej * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 1.1.6.2 thorpej * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 1.1.6.2 thorpej * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 1.1.6.2 thorpej * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.1.6.2 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.1.6.2 thorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.1.6.2 thorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.1.6.2 thorpej * SUCH DAMAGE. 34 1.1.6.2 thorpej */ 35 1.1.6.2 thorpej 36 1.1.6.2 thorpej #include <machine/asm.h> 37 1.1.6.2 thorpej 38 1.1.6.2 thorpej /* 39 1.1.6.2 thorpej * bus_space I/O functions for iomd 40 1.1.6.2 thorpej */ 41 1.1.6.2 thorpej 42 1.1.6.2 thorpej /* 43 1.1.6.2 thorpej * read single 44 1.1.6.2 thorpej */ 45 1.1.6.2 thorpej 46 1.1.6.2 thorpej ENTRY(iomd_bs_r_1) 47 1.1.6.2 thorpej ldrb r0, [r1, r2, lsl #2] 48 1.1.6.2 thorpej mov pc, lr 49 1.1.6.2 thorpej 50 1.1.6.2 thorpej ENTRY(iomd_bs_r_2) 51 1.1.6.2 thorpej ldr r0, [r1, r2, lsl #2] 52 1.1.6.2 thorpej bic r0, r0, #0xff000000 53 1.1.6.2 thorpej bic r0, r0, #0x00ff0000 54 1.1.6.2 thorpej mov pc, lr 55 1.1.6.2 thorpej 56 1.1.6.2 thorpej ENTRY(iomd_bs_r_4) 57 1.1.6.2 thorpej ldr r0, [r1, r2, lsl #2] 58 1.1.6.2 thorpej mov pc, lr 59 1.1.6.2 thorpej 60 1.1.6.2 thorpej /* 61 1.1.6.2 thorpej * write single 62 1.1.6.2 thorpej */ 63 1.1.6.2 thorpej 64 1.1.6.2 thorpej ENTRY(iomd_bs_w_1) 65 1.1.6.2 thorpej strb r3, [r1, r2, lsl #2] 66 1.1.6.2 thorpej mov pc, lr 67 1.1.6.2 thorpej 68 1.1.6.2 thorpej ENTRY(iomd_bs_w_2) 69 1.1.6.2 thorpej mov r3, r3, lsl #16 70 1.1.6.2 thorpej orr r3, r3, r3, lsr #16 71 1.1.6.2 thorpej str r3, [r1, r2, lsl #2] 72 1.1.6.2 thorpej mov pc, lr 73 1.1.6.2 thorpej 74 1.1.6.2 thorpej ENTRY(iomd_bs_w_4) 75 1.1.6.2 thorpej str r3, [r1, r2, lsl #2] 76 1.1.6.2 thorpej mov pc, lr 77 1.1.6.2 thorpej 78 1.1.6.2 thorpej 79 1.1.6.2 thorpej /* 80 1.1.6.2 thorpej * read multiple 81 1.1.6.2 thorpej */ 82 1.1.6.2 thorpej 83 1.1.6.2 thorpej ENTRY(iomd_bs_rm_2) 84 1.1.6.2 thorpej add r0, r1, r2, lsl #2 85 1.1.6.2 thorpej mov r1, r3 86 1.1.6.2 thorpej ldr r2, [sp, #0] 87 1.1.6.2 thorpej b _C_LABEL(insw16) 88 1.1.6.2 thorpej 89 1.1.6.2 thorpej /* 90 1.1.6.2 thorpej * write multiple 91 1.1.6.2 thorpej */ 92 1.1.6.2 thorpej 93 1.1.6.2 thorpej ENTRY(iomd_bs_wm_2) 94 1.1.6.2 thorpej add r0, r1, r2, lsl #2 95 1.1.6.2 thorpej mov r1, r3 96 1.1.6.2 thorpej ldr r2, [sp, #0] 97 1.1.6.2 thorpej b _C_LABEL(outsw16) 98
Indexes created Mon Oct 20 05:10:11 GMT 2025