260 lines
5.4 KiB
ArmAsm
260 lines
5.4 KiB
ArmAsm
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/* $NetBSD: podulebus_io_asm.S,v 1.1 1997/01/17 01:00:48 mark Exp $ */
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/*
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* Copyright (c) 1997 Mark Brinicombe.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mark Brinicombe.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* bus_space I/O functions for podulebus
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*/
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sp .req r13
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lr .req r14
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pc .req r15
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.text
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/*
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* read single
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*/
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.global _podulebus_r_1
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_podulebus_r_1:
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ldrb r0, [r1, r2, lsl #2]
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mov pc, lr
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.global _podulebus_r_2
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_podulebus_r_2:
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ldr r0, [r1, r2, lsl #2]
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bic r0, r0, #0xff000000
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bic r0, r0, #0x00ff0000
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mov pc, lr
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.global _podulebus_r_4
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_podulebus_r_4:
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ldr r0, [r1, r2, lsl #2]
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mov pc, lr
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.global _podulebus_r_8
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_podulebus_r_8:
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adr r0, podulebus_r_8_text
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b _panic
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podulebus_r_8_text:
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.asciz "podulebus_r_8(%x,%x): Not implemented\n"
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.align 0
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/*
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* write single
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*/
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.global _podulebus_w_1
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_podulebus_w_1:
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strb r3, [r1, r2, lsl #2]
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mov pc, lr
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.global _podulebus_w_2
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_podulebus_w_2:
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mov r3, r3, lsl #16
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orr r3, r3, r3, lsr #16
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str r3, [r1, r2, lsl #2]
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mov pc, lr
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.global _podulebus_w_4
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_podulebus_w_4:
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str r3, [r1, r2, lsl #2]
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mov pc, lr
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.global _podulebus_w_8
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_podulebus_w_8:
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adr r0, podulebus_w_8_text
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b _panic
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podulebus_w_8_text:
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.asciz "podulebus_w_8(%x,%x): Not implemented\n"
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.align 0
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/*
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* read multiple
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*/
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.global _podulebus_rm_1
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_podulebus_rm_1:
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adr r0, podulebus_rm_1_text
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b _panic
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podulebus_rm_1_text:
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.asciz "podulebus_rm_1(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_rm_2
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_podulebus_rm_2:
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add r0, r1, r2, lsl #2
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mov r1, r3
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ldr r2, [sp, #0]
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b _insw
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.global _podulebus_rm_4
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_podulebus_rm_4:
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adr r0, podulebus_rm_4_text
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b _panic
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podulebus_rm_4_text:
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.asciz "podulebus_rm_4(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_rm_8
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_podulebus_rm_8:
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adr r0, podulebus_rm_8_text
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b _panic
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podulebus_rm_8_text:
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.asciz "podulebus_rm_8(%x,%x,%x): Not implemented\n"
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.align 0
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/*
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* write multiple
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*/
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.global _podulebus_wm_1
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_podulebus_wm_1:
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adr r0, podulebus_wm_1_text
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b _panic
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podulebus_wm_1_text:
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.asciz "podulebus_wm_1(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_wm_2
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_podulebus_wm_2:
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add r0, r1, r2, lsl #2
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mov r1, r3
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ldr r2, [sp, #0]
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b _outsw
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.global _podulebus_wm_4
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_podulebus_wm_4:
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adr r0, podulebus_wm_4_text
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b _panic
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podulebus_wm_4_text:
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.asciz "podulebus_wm_4(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_wm_8
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_podulebus_wm_8:
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adr r0, podulebus_wm_8_text
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b _panic
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podulebus_wm_8_text:
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.asciz "podulebus_wm_8(%x,%x,%x): Not implemented\n"
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.align 0
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/*
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* read region
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*/
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.global _podulebus_rr_1
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_podulebus_rr_1:
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adr r0, podulebus_rr_1_text
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b _panic
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podulebus_rr_1_text:
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.asciz "podulebus_rr_1(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_rr_2
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_podulebus_rr_2:
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adr r0, podulebus_rr_2_text
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b _panic
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podulebus_rr_2_text:
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.asciz "podulebus_rr_2(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_rr_4
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_podulebus_rr_4:
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adr r0, podulebus_rr_4_text
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b _panic
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podulebus_rr_4_text:
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.asciz "podulebus_rr_4(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_rr_8
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_podulebus_rr_8:
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adr r0, podulebus_rr_8_text
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b _panic
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podulebus_rr_8_text:
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.asciz "podulebus_rr_8(%x,%x,%x): Not implemented\n"
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.align 0
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/*
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* write region
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*/
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.global _podulebus_wr_1
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_podulebus_wr_1:
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adr r0, podulebus_wr_1_text
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b _panic
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podulebus_wr_1_text:
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.asciz "podulebus_wr_1(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_wr_2
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_podulebus_wr_2:
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adr r0, podulebus_wr_2_text
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b _panic
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podulebus_wr_2_text:
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.asciz "podulebus_wr_2(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_wr_4
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_podulebus_wr_4:
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adr r0, podulebus_wr_4_text
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b _panic
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podulebus_wr_4_text:
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.asciz "podulebus_wr_4(%x,%x,%x): Not implemented\n"
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.align 0
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.global _podulebus_wr_8
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_podulebus_wr_8:
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adr r0, podulebus_wr_8_text
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b _panic
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podulebus_wr_8_text:
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.asciz "podulebus_wr_8(%x,%x,%x): Not implemented\n"
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.align 0
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