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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: asm.h,v 1.15 2005/01/23 16:28:29 mickey Exp $	*/

/* 
 * Copyright (c) 1990,1991,1994 The University of Utah and
 * the Computer Systems Laboratory (CSL).  All rights reserved.
 *
 * Permission to use, copy, modify and distribute this software is hereby
 * granted provided that (1) source code retains these copyright, permission,
 * and disclaimer notices, and (2) redistributions including binaries
 * reproduce the notices in supporting documentation, and (3) all advertising
 * materials mentioning features or use of this software display the following
 * acknowledgement: ``This product includes software developed by the
 * Computer Systems Laboratory at the University of Utah.''
 *
 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
 * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
 * improvements that they make and grant CSL redistribution rights.
 *
 *	Utah $Hdr: asm.h 1.8 94/12/14$
 */

#ifndef _MACHINE_ASM_H_
#define _MACHINE_ASM_H_

/*
 *	hppa assembler definitions
 */

/*
 * Hardware General Registers
 */
r0	.reg	%r0
r1	.reg	%r1
r2	.reg	%r2
r3	.reg	%r3
r4	.reg	%r4
r5	.reg	%r5
r6	.reg	%r6
r7	.reg	%r7
r8	.reg	%r8
r9	.reg	%r9
r10	.reg	%r10
r11	.reg	%r11
r12	.reg	%r12
r13	.reg	%r13
r14	.reg	%r14
r15	.reg	%r15
r16	.reg	%r16
r17	.reg	%r17
r18	.reg	%r18
r19	.reg	%r19
r20	.reg	%r20
r21	.reg	%r21
r22	.reg	%r22
r23	.reg	%r23
r24	.reg	%r24
r25	.reg	%r25
r26	.reg	%r26
r27	.reg	%r27
r28	.reg	%r28
r29	.reg	%r29
r30	.reg	%r30
r31	.reg	%r31

/*
 * Hardware Space Registers
 */
sr0	.reg	%sr0
sr1	.reg	%sr1
sr2	.reg	%sr2
sr3	.reg	%sr3
sr4	.reg	%sr4
sr5	.reg	%sr5
sr6	.reg	%sr6
sr7	.reg	%sr7

/*
 * Hardware Floating Point Registers
 */
fr0	.reg	%fr0
fr1	.reg	%fr1
fr2	.reg	%fr2
fr3	.reg	%fr3
fr4	.reg	%fr4
fr5	.reg	%fr5
fr6	.reg	%fr6
fr7	.reg	%fr7
fr8	.reg	%fr8
fr9	.reg	%fr9
fr10	.reg	%fr10
fr11	.reg	%fr11
fr12	.reg	%fr12
fr13	.reg	%fr13
fr14	.reg	%fr14
fr15	.reg	%fr15
fr16	.reg	%fr16
fr17	.reg	%fr17
fr18	.reg	%fr18
fr19	.reg	%fr19
fr20	.reg	%fr20
fr21	.reg	%fr21
fr22	.reg	%fr22
fr23	.reg	%fr23
fr24	.reg	%fr24
fr25	.reg	%fr25
fr26	.reg	%fr26
fr27	.reg	%fr27
fr28	.reg	%fr28
fr29	.reg	%fr29
fr30	.reg	%fr30
fr31	.reg	%fr31

/*
 * Hardware Control Registers
 */
cr0	.reg	%cr0
cr8	.reg	%cr8
cr9	.reg	%cr9
cr10	.reg	%cr10
cr11	.reg	%cr11
cr12	.reg	%cr12
cr13	.reg	%cr13
cr14	.reg	%cr14
cr15	.reg	%cr15
cr16	.reg	%cr16
cr17	.reg	%cr17
cr18	.reg	%cr18
cr19	.reg	%cr19
cr20	.reg	%cr20
cr21	.reg	%cr21
cr22	.reg	%cr22
cr23	.reg	%cr23
cr24	.reg	%cr24
cr25	.reg	%cr25
cr26	.reg	%cr26
cr27	.reg	%cr27
cr28	.reg	%cr28
cr29	.reg	%cr29
cr30	.reg	%cr30
cr31	.reg	%cr31

rctr	.reg	%cr0
pidr1	.reg	%cr8
pidr2	.reg	%cr9
ccr	.reg	%cr10
sar	.reg	%cr11
pidr3	.reg	%cr12
pidr4	.reg	%cr13
iva	.reg	%cr14
eiem	.reg	%cr15
itmr	.reg	%cr16
pcsq	.reg	%cr17
pcoq	.reg	%cr18
iir	.reg	%cr19
isr	.reg	%cr20
ior	.reg	%cr21
ipsw	.reg	%cr22
eirr	.reg	%cr23
tr0	.reg	%cr24
vtop	.reg	%cr25
tr1	.reg	%cr25
tr2	.reg	%cr26
tr3	.reg	%cr27
tr4	.reg	%cr28
tr5	.reg	%cr29
tr6	.reg	%cr30
tr7	.reg	%cr31

/*
 * Calling Convention
 */
rp	.reg	%r2
arg3	.reg	%r23
arg2	.reg	%r24
arg1	.reg	%r25
arg0	.reg	%r26
dp	.reg	%r27
ret0	.reg	%r28
ret1	.reg	%r29
sl	.reg	%r29
sp	.reg	%r30

/*
 * Temporary registers
 */
t1	.reg	%r22
t2	.reg	%r21
t3	.reg	%r20
t4	.reg	%r19

/*
 * Temporary space registers
 */
ts1	.reg	%sr2

/*
 * Space Registers - SW Conventions
 */
sret	.reg	%sr1	; return value
sarg	.reg	%sr1	; argument

/*
 * Floating Point Registers - SW Conventions
 */
farg0	.reg	%fr5
farg1	.reg	%fr6
farg2	.reg	%fr7
farg3	.reg	%fr8
fret	.reg	%fr4

/*
 * Temporary floating point registers
 */
tf1	.reg	%fr11
tf2	.reg	%fr10
tf3	.reg	%fr9
tf4	.reg	%fr8

#ifdef __STDC__
#define	__CONCAT(a,b)	a ## b
#else
#define	__CONCAT(a,b)	a/**/b
#endif

#ifdef PROF
#define	_PROF_PROLOGUE !\
	stw rp, HPPA_FRAME_CRP(sr0,sp)	!\
	ldil L%_mcount,r1		!\
	ble R%_mcount(sr0,r1)		!\
	ldo HPPA_FRAME_SIZE(sp),sp	!\
	ldw HPPA_FRAME_CRP(sr0,sp),rp
#else
#define	_PROF_PROLOGUE
#endif

#define	LEAF_ENTRY(x) ! .text ! .align	4	!\
	.export	x, entry ! .label x ! .proc	!\
	.callinfo frame=0,no_calls,save_rp	!\
	.entry ! _PROF_PROLOGUE

#define	ENTRY(x,n) ! .text ! .align 4			!\
	.export	x, entry ! .label x ! .proc		!\
	.callinfo frame=n,calls, save_rp, save_sp	!\
	.entry ! _PROF_PROLOGUE

#define ALTENTRY(x) ! .export x, entry ! .label  x
#define EXIT(x) ! .exit ! .procend ! .size   x, .-x

#define	BSS(n,s)	! .data ! .label n ! .comm s

#endif /* _MACHINE_ASM_H_ */