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adbsysasm.s revision 1.5
      1 /*	$NetBSD: adbsysasm.s,v 1.5 1997/06/16 06:35:28 scottr Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1994	Bradley A. Grantham
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Bradley A. Grantham.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * ADB subsystem routines in assembly
     35  */
     36 
     37 /* This routine is called when a device has sent us some data. */
     38 /* (provided it has been set up with SetADBInfo) */
     39 	.global	_adb_asmcomplete
     40 	.global	_adb_complete
     41 _adb_asmcomplete:
     42 	moveml	#0xc0c0, sp@-	| save scratch regs
     43 	movl	d0, sp@-	/* ADB command byte */
     44 	movl	a2, sp@-	/* data area pointer */
     45 	/*	a1 is the pointer to this routine itself. */
     46 	movl	a0, sp@-	/* device data buffer */
     47 	jbsr	_adb_complete
     48 	addl	#12, sp		/* pop params */
     49 	moveml	sp@+, #0x0303	| restore scratch regs
     50 	rts
     51 
     52 /* This routine is called when an A3 mouse has sent us some data. */
     53 /* (provided it has been set up with SetADBInfo) */
     54 	.global	_adb_msa3_asmcomplete
     55 _adb_msa3_asmcomplete:
     56 	moveml	#0xc0c0, sp@-	| save scratch regs
     57 	movl	d0, sp@-	/* ADB command byte */
     58 	movl	a2, sp@-	/* data area pointer */
     59 	/*	a1 is the pointer to this routine itself. */
     60 	movl	a0, sp@-	/* device data buffer */
     61 	jbsr	_adb_msa3_complete
     62 	addl	#12, sp		/* pop params */
     63 	moveml	sp@+, #0x0303	| restore scratch regs
     64 	rts
     65 
     66 _adb_jadbprochello:
     67 	.asciz	"adb: hello from adbproc\n"
     68 	.even
     69 
     70 
     71 	.global	_adb_jadbproc
     72 _adb_jadbproc:
     73 #if defined(MRG_DEBUG) && 0
     74 	moveml	#0xc0c0, sp@-	| save scratch regs
     75 	movl	_adb_jadbprochello, sp@-
     76 	jbsr	_printf
     77 	addl	#4, sp		/* pop params */
     78 	moveml	sp@+, #0x0303	| restore scratch regs
     79 #endif
     80 		/* Don't do anything; adb_init fixes dev info for us. */
     81 	rts
     82 
     83 	/* ADBOp's completion routine used by extdms_init() in adbsys.c. */
     84 	.global	_extdms_complete
     85 _extdms_complete:
     86 	movl	#-1,a2@		| set done flag
     87 	rts
     88