harvey/sys/src/libmach/6.c

/*
 * 960 definition
 */
#include <u.h>
#include <bio.h>
#include <mach.h>

/*
 *  until we decide how we'll take faults, we really
 *  don't know what the saved regs will look like.
 *  this is just a guess. -- presotto
 */
#define UR(x)		(4*(x))

#define SP		UR(29)
#define PC		UR(30)
#define	R4		UR(4)

#define	REGSIZE		(32*44)
#define	FPREGSIZE	0

Reglist i960reglist[] = {
	{ "R0",		UR(0), RINT, 'X'},
	{ "R1",		UR(1), RINT, 'X'},
	{ "R2",		UR(2), RINT, 'X'},
	{ "R3",		UR(3), RINT, 'X'},
	{ "R4",		UR(4), RINT, 'X'},
	{ "R5",		UR(5), RINT, 'X'},
	{ "R6",		UR(6), RINT, 'X'},
	{ "R7",		UR(7), RINT, 'X'},
	{ "R8",		UR(8), RINT, 'X'},
	{ "R9",		UR(9), RINT, 'X'},
	{ "R10",	UR(10), RINT, 'X'},
	{ "R11",	UR(11), RINT, 'X'},
	{ "R12",	UR(12), RINT, 'X'},
	{ "R13",	UR(13), RINT, 'X'},
	{ "R14",	UR(14), RINT, 'X'},
	{ "R15",	UR(15), RINT, 'X'},
	{ "R16",	UR(16), RINT, 'X'},
	{ "R17",	UR(17), RINT, 'X'},
	{ "R18",	UR(18), RINT, 'X'},
	{ "R19",	UR(19), RINT, 'X'},
	{ "R20",	UR(20), RINT, 'X'},
	{ "R21",	UR(21), RINT, 'X'},
	{ "R22",	UR(22), RINT, 'X'},
	{ "R23",	UR(23), RINT, 'X'},
	{ "R24",	UR(24), RINT, 'X'},
	{ "R25",	UR(25), RINT, 'X'},
	{ "R26",	UR(26), RINT, 'X'},
	{ "TMP",	UR(27), RINT, 'X'},
	{ "SB",		UR(28), RINT, 'X'},
	{ "SP",		SP, RINT, 'X'},
	{ "PC",		PC, RINT, 'X'},
	{ "R31",	UR(31), RINT, 'X' },
	{  0 }
};

Mach mi960 =
{
	"960",		/* machine name */
	MI960,		/* machine type */
	i960reglist,	/* registers */
	REGSIZE,	/* size of register set in bytes */
	FPREGSIZE,	/* size of fp register set in bytes */
	"PC",		/* name of PC */
	"SP",		/* name of SP */
	0,		/* link register */
	"setSB",	/* static base register name */
	0,		/* value */
	0x1000,		/* page size */
	0x80000000,	/* kernel base */
	0,		/* kernel text mask */
	1,		/* quantization of pc */
	4,		/* szaddr */
	4,		/* szreg */
	4,		/* szfloat */
	8,		/* szdouble */
};