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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: sh_opcode.h,v 1.1.1.1 2006/10/06 21:02:55 miod Exp $	*/
/*	$NetBSD: sh_opcode.h,v 1.3 2002/04/28 17:10:36 uch Exp $ */

typedef union {
	unsigned word;

#if _BYTE_ORDER == BIG_ENDIAN
	struct {
		unsigned op: 16;
	} oType;

	struct {
		unsigned op1: 4;
		unsigned n: 4;
		unsigned op2: 8;
	} nType;

	struct {
		unsigned op1: 4;
		unsigned m: 4;
		unsigned op2: 8;
	} mType;

	struct {
		unsigned op1: 4;
		unsigned n: 4;
		unsigned m: 4;
		unsigned op2: 4;
	} nmType;

	struct {
		unsigned op: 8;
		unsigned m: 4;
		unsigned d: 4;
	} mdType;

	struct {
		unsigned op: 8;
		unsigned n: 4;
		unsigned d: 4;
	} nd4Type;

	struct {
		unsigned op: 4;
		unsigned n: 4;
		unsigned m: 4;
		unsigned d: 4;
	} nmdType;

	struct {
		unsigned op: 8;
		unsigned d: 8;
	} dType;

	struct {
		unsigned op: 4;
		unsigned d: 12;
	} d12Type;

	struct {
		unsigned op: 4;
		unsigned n: 4;
		unsigned d: 8;
	} nd8Type;

	struct {
		unsigned op: 8;
		unsigned i: 8;
	} iType;

	struct {
		unsigned op: 4;
		unsigned n: 4;
		unsigned i: 8;
	} niType;
#endif
#if _BYTE_ORDER == LITTLE_ENDIAN
struct {
		unsigned op: 16;
	} oType;

	struct {
		unsigned op2: 8;
		unsigned n: 4;
		unsigned op1: 4;
	} nType;

	struct {
		unsigned op2: 8;
		unsigned m: 4;
		unsigned op1: 4;
	} mType;

	struct {
		unsigned op2: 4;
		unsigned m: 4;
		unsigned n: 4;
		unsigned op1: 4;
	} nmType;

	struct {
		unsigned d: 4;
		unsigned m: 4;
		unsigned op: 8;
	} mdType;

	struct {
		unsigned d: 4;
		unsigned n: 4;
		unsigned op: 8;
	} nd4Type;

	struct {
		unsigned d: 4;
		unsigned m: 4;
		unsigned n: 4;
		unsigned op: 4;
	} nmdType;

	struct {
		unsigned d: 8;
		unsigned op: 8;
	} dType;

	struct {
		unsigned d: 12;
		unsigned op: 4;
	} d12Type;

	struct {
		unsigned d: 8;
		unsigned n: 4;
		unsigned op: 4;
	} nd8Type;

	struct {
		unsigned i: 8;
		unsigned op: 8;
	} iType;

	struct {
		unsigned i: 8;
		unsigned n: 4;
		unsigned op: 4;
	} niType;
#endif
} InstFmt;

#define	OP_BF	0x8b
#define	OP_BFS	0x8f
#define	OP_BT	0x89
#define	OP_BTS	0x8d
#define	OP_BRA	0xa
#define	OP_BSR	0xb
#define	OP1_BRAF	0x0
#define	OP2_BRAF	0x23
#define	OP1_BSRF	0x0
#define	OP2_BSRF	0x03
#define	OP1_JMP	0x4
#define	OP2_JMP	0x2b
#define	OP1_JSR	0x4
#define	OP2_JSR	0x0b
#define	OP_RTS	0xffff