69 lines
2.4 KiB
ArmAsm
69 lines
2.4 KiB
ArmAsm
/* $NetBSD: podloader_asm.S,v 1.2 2002/03/24 23:37:44 bjh21 Exp $ */
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/*-
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* Copyright (c) 2000 Ben Harris
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <machine/asm.h>
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RCSID("$NetBSD: podloader_asm.S,v 1.2 2002/03/24 23:37:44 bjh21 Exp $")
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#include <sys/errno.h>
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/*
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* register_t _podloader_call(register_t r0, register_t r1, register_t r11,
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* void *loader, int entry)
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*
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* Podule loader register assignments:
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* R0 Write/Read data
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* R1 Address
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* R2-R3 Scratch
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* R4-R9 Preserved
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* R10 Scratch
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* R11 Hardware address, preserved
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* R12 Preserved
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* R13 Stack pointer, preserved
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*/
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ENTRY(_podloader_call)
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mov ip, sp
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stmfd sp!, {r4, r5, fp, ip, lr, pc}
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sub fp, ip, #4
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ldr r4, [fp, #4] /* fetch entry */
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stmfd sp!, {fp} /* Save FP, since that's R11 */
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mov r11, r2
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mov lr, pc
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add pc, r3, r4, lsl #2 /* Call loader */
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ldmfd sp!, {fp}
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adrvs r0, Lpodloader_panicmsg
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blvs _C_LABEL(panic)
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#ifdef __APCS_26__
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ldmdb fp, {r4, r5, fp, sp, pc}^
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#else
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ldmdb fp, {r4, r5, fp, sp, pc}
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#endif
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Lpodloader_panicmsg:
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.asciz "podloader_call"
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