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#include	<u.h>
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#include	<libc.h>
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#include	<bio.h>
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#include	<mach.h>
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		/* table for selecting machine-dependent parameters */
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typedef	struct machtab Machtab;
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struct machtab
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{
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	char		*name;			/* machine name */
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	short		type;			/* executable type */
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	short		boottype;		/* bootable type */
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	int		asstype;		/* disassembler code */
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	Mach		*mach;			/* machine description */
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	Machdata	*machdata;		/* machine functions */
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};
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extern	Mach		mmips, msparc, m68020, mi386, mamd64,
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			marm, mmips2be, mmips2le, mpower, mpower64, malpha, msparc64;
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extern	Machdata	mipsmach, mipsmachle, sparcmach, m68020mach, i386mach,
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			armmach, mipsmach2le, powermach, alphamach, sparc64mach;
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/*
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 *	machine selection table.  machines with native disassemblers should
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 *	follow the plan 9 variant in the table; native modes are selectable
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 *	only by name.
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 */
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Machtab	machines[] =
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{
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	{	"68020",			/*68020*/
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		F68020,
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		F68020B,
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		A68020,
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		&m68020,
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		&m68020mach,	},
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	{	"68020",			/*Next 68040 bootable*/
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		F68020,
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		FNEXTB,
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		A68020,
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		&m68020,
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		&m68020mach,	},
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	{	"mips2LE",			/*plan 9 mips2 little endian*/
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		FMIPS2LE,
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		0,
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		AMIPS,
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		&mmips2le,
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		&mipsmach2le, 	},
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	{	"mipsLE",				/*plan 9 mips little endian*/
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		FMIPSLE,
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		0,
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		AMIPS,
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		&mmips,
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		&mipsmachle, 	},
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	{	"mips",				/*plan 9 mips*/
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		FMIPS,
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		FMIPSB,
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		AMIPS,
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		&mmips,
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		&mipsmach, 	},
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	{	"mips2",			/*plan 9 mips2*/
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		FMIPS2BE,
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		FMIPSB,
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		AMIPS,
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		&mmips2be,
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		&mipsmach, 	},		/* shares debuggers with native mips */
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	{	"mipsco",			/*native mips - must follow plan 9*/
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		FMIPS,
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		FMIPSB,
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		AMIPSCO,
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		&mmips,
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		&mipsmach,	},
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	{	"sparc",			/*plan 9 sparc */
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		FSPARC,
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		FSPARCB,
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		ASPARC,
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		&msparc,
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		&sparcmach,	},
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	{	"sunsparc",			/*native sparc - must follow plan 9*/
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		FSPARC,
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		FSPARCB,
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		ASUNSPARC,
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		&msparc,
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		&sparcmach,	},
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	{	"386",				/*plan 9 386*/
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		FI386,
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		FI386B,
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		AI386,
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		&mi386,
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		&i386mach,	},
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	{	"86",				/*8086 - a peach of a machine*/
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		FI386,
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		FI386B,
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		AI8086,
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		&mi386,
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		&i386mach,	},
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	{	"amd64",			/*amd64*/
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		FAMD64,
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		FAMD64B,
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		AAMD64,
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		&mamd64,
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		&i386mach,	},
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	{	"arm",				/*ARM*/
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		FARM,
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		FARMB,
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		AARM,
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		&marm,
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		&armmach,	},
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	{	"power",			/*PowerPC*/
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		FPOWER,
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		FPOWERB,
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		APOWER,
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		&mpower,
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		&powermach,	},
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	{	"power64",			/*PowerPC*/
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		FPOWER64,
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		FPOWER64B,
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		APOWER64,
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		&mpower64,
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		&powermach,	},
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	{	"alpha",			/*Alpha*/
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		FALPHA,
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		FALPHAB,
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		AALPHA,
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		&malpha,
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		&alphamach,	},
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	{	"sparc64",			/*plan 9 sparc64 */
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		FSPARC64,
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		FSPARCB,			/* XXX? */
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		ASPARC64,
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		&msparc64,
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		&sparc64mach,	},
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	{	0		},		/*the terminator*/
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};
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/*
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 *	select a machine by executable file type
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 */
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void
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machbytype(int type)
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{
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	Machtab *mp;
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	for (mp = machines; mp->name; mp++){
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		if (mp->type == type || mp->boottype == type) {
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			asstype = mp->asstype;
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			machdata = mp->machdata;
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			break;
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		}
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	}
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}
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/*
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 *	select a machine by name
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 */
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int
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machbyname(char *name)
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{
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	Machtab *mp;
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	if (!name) {
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		asstype = AMIPS;
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		machdata = &mipsmach;
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		mach = &mmips;
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		return 1;
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	}
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	for (mp = machines; mp->name; mp++){
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		if (strcmp(mp->name, name) == 0) {
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			asstype = mp->asstype;
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			machdata = mp->machdata;
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			mach = mp->mach;
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			return 1;
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		}
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	}
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	return 0;
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}