/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ /* * power sim.h * * The integer instruction side of this emulator is portable if sizeof(long) >= 4 * Floating point emulation assumes: *	sizeof(ulong) == sizeof(float) *	sizeof(ulong)*2 == sizeof(double) <= sizeof(vlong) *	unions of double & vlong have no padding *	vlongs provide at least 64 bits precision */#include "/power/include/ureg.h"#define	USERADDR	0xC0000000#define	UREGADDR	(USERADDR+BY2PG-4-0xA0)#define USER_REG(x)	(UREGADDR+(ulong)(x))#define	REGOFF(x)	(USER_REG(&((struct Ureg *) 0)->x)) typedef struct Registers Registers;typedef struct Segment Segment;typedef struct Memory Memory;typedef struct Inset Inset;typedef struct Inst Inst;typedef struct Icache Icache;typedef struct Breakpoint Breakpoint; enum{	Instruction	= 1,	Read		= 2,	Write		= 4,	Access		= 2|4,	Equal		= 4|8,}; struct Breakpoint{	int		type;		/* Instruction/Read/Access/Write/Equal */	ulong		addr;		/* Place at address */	int		count;		/* To execute count times or value */	int		done;		/* How many times passed through */	Breakpoint	*next;		/* Link to next one */}; enum{	Iload,	Istore,	Iarith,	Ilog,	Ibranch,	Ireg,	Isyscall,	Ifloat,	Inop,	Icontrol,}; struct Icache{	int	on;			/* Turned on */	int	linesize;		/* Line size in bytes */	int	stall;			/* Cache stalls */	int	*lines;			/* Tag array */	int*	(*hash)(ulong);		/* Hash function */	char	*hashtext;		/* What the function looks like */}; struct Inset{	Inst	*tab;		/* indexed by extended opcode */	int	nel;}; struct Inst{	void 	(*func)(ulong);	char	*name;	int	type;	int	count;	int	taken;}; struct Registers{	ulong	pc;	ulong	ir;	Inst	*ip;	long	r[32];	ulong	ctr;	ulong	cr;	ulong	xer;	ulong	lr;	ulong	fpscr;	ulong	dec;	ulong	tbl;	ulong	tbu;	double	fd[32];}; enum{	MemRead,	MemReadstring,	MemWrite,}; enum{	Stack,	Text,	Data,	Bss,	Nseg,}; struct Segment{	short	type;	ulong	base;	ulong	end;	ulong	fileoff;	ulong	fileend;	int	rss;	int	refs;	uchar	**table;}; struct Memory{	Segment	seg[Nseg];}; void		fatal(int, char*, ...);void		fpreginit(void);void		run(void);void		undef(ulong);void		unimp(ulong);void		dumpreg(void);void		dumpfreg(void);void		dumpdreg(void);void*		emalloc(ulong);void*		erealloc(void*, ulong, ulong);void*		vaddr(ulong);void		itrace(char *, ...);void		segsum(void);void		sc(ulong);char*		memio(char*, ulong, int, int);ulong		getmem_w(ulong);ulong		ifetch(ulong);ushort		getmem_h(ulong);void		putmem_w(ulong, ulong);uchar		getmem_b(ulong);void		putmem_b(ulong, uchar);uvlong	getmem_v(ulong);ulong		getmem_4(ulong);ulong		getmem_2(ulong);void	putmem_v(ulong, uvlong);void		putmem_h(ulong, short);void		isum(void);void		initicache(void);void		updateicache(ulong addr);long		lnrand(long);void		randseed(long, long);void		cmd(void);void		brkchk(ulong, int);void		delbpt(char*);void		breakpoint(char*, char*);char*		nextc(char*);ulong		expr(char*);void		initstk(int, char**);void		initmap(void);void		inithdr(int);void		reset(void);void		dobplist(void);void		procinit(int);void		printsource(long);void		printparams(Symbol *, ulong);void		printlocals(Symbol *, ulong);void		stktrace(int);void		iprofile(void); /* Globals */Extern 		Registers reg;Extern 		Memory memory;Extern		int text;Extern		int trace;Extern 		int sysdbg;Extern 		int calltree;Extern		Icache icache;Extern		int count;Extern		jmp_buf errjmp;Extern		Breakpoint *bplist;Extern		int atbpt;Extern		int membpt;Extern		int cmdcount;Extern		int nopcount;Extern		ulong dot;extern		char *file;Extern		Biobuf *bioout;Extern		Biobuf *bin;Extern		Inst *ci;Extern		ulong *iprof;Extern		ulong	iprofsize;Extern		ulong loadlock;extern		int datasize;		extern		int printcol;Extern		Map *symmap;extern		ulong bits[]; extern		Inset ops0, ops19, ops31, ops59, ops63a, ops63b; /* Plan9 Kernel constants */#define	BY2PG		4096#define BY2WD		4#define UTZERO		0x1000#define TSTKSIZ		32#define TSTACKTOP	0x20000000#define STACKTOP	(TSTACKTOP-TSTKSIZ*BY2PG)#define STACKSIZE	(4*1024*1024) #define PROFGRAN	4#define NOP		0x80300000#define SIGNBIT		0x80000000  enum {	CRLT = 1<<31,	CRGT = 1<<30,	CREQ = 1<<29,	CRSO = 1<<28,	CRFU = CRSO, 	CRFX = 1<<27,	CRFEX = 1<<26,	CRVX = 1<<25,	CROX = 1<<24,}; #define getCR(x,w) (((w)>>(28-(x*4)))&0xF)#define mkCR(x,v) (((v)&0xF)<<(28-(x*4))) #define simm(xx, ii)	xx = (short)(ii&0xFFFF);#define uimm(xx, ii)	xx = ii&0xFFFF;#define imms(xx, ii) xx = ii<<16;#define getairr(i)	rd = (i>>21)&0x1f; ra = (i>>16)&0x1f; simm(imm,i)#define getarrr(i)	rd = (i>>21)&0x1f; ra = (i>>16)&0x1f; rb = (i>>11)&0x1f;#define getbobi(i)	bo = (i>>21)&0x1f; bi = (i>>16)&0x1f; xx = (i>>11)&0x1f;#define getlirr(i)	rs = (i>>21)&0x1f; ra = (i>>16)&0x1f; uimm(imm,i)#define getlrrr(i)	rs = (i>>21)&0x1f; ra = (i>>16)&0x1f; rb = (i>>11)&0x1f; #define OP(o,xo) ((o<<26)|(xo<<1))	/* build an operation */#define xop(a,b) ((b<<6)|a)	/* compact form for use in a decoding switch on op/xo */#define getop(i) ((i>>26)&0x3F)#define getxo(i) ((i>>1)&0x3FF) #define	FPS_FX	(1<<31)	/* exception summary (sticky) */#define	FPS_EX	(1<<30)	/* enabled exception summary */#define	FPS_VX	(1<<29)	/* invalid operation exception summary */#define	FPS_OX	(1<<28)	/* overflow exception OX (sticky) */#define	FPS_UX	(1<<27)	/* underflow exception UX (sticky) */#define	FPS_ZX	(1<<26)	/* zero divide exception ZX (sticky) */#define	FPS_XX	(1<<25)	/* inexact exception XX (sticky) */#define	FPS_VXSNAN (1<<24)	/* invalid operation exception for SNaN (sticky) */#define	FPS_VXISI	(1<<23)	/* invalid operation exception for ∞-∞ (sticky) */#define	FPS_VXIDI	(1<<22)	/* invalid operation exception for ∞/∞ (sticky) */#define	FPS_VXZDZ (1<<21)	/* invalid operation exception for 0/0 (sticky) */#define	FPS_VXIMZ	(1<<20)	/* invalid operation exception for ∞*0 (sticky) */#define	FPS_VXVC	(1<<19)	/* invalid operation exception for invalid compare (sticky) */#define	FPS_FR	(1<<18)	/* fraction rounded */#define	FPS_FI	(1<<17)	/* fraction inexact */#define	FPS_FPRF	(1<<16)	/* floating point result class */#define	FPS_FPCC	(0xF<<12)	/* <, >, =, unordered */#define	FPS_VXCVI	(1<<8)	/* enable exception for invalid integer convert (sticky) */#define	FPS_VE	(1<<7)	/* invalid operation exception enable */#define	FPS_OE	(1<<6)	/* enable overflow exceptions */#define	FPS_UE	(1<<5)	/* enable underflow */#define	FPS_ZE	(1<<4)	/* enable zero divide */#define	FPS_XE	(1<<3)	/* enable inexact exceptions */#define	FPS_RN	(3<<0)	/* rounding mode */ #define	XER_SO	(1<<31)#define	XER_OV	(1<<30)#define	XER_CA	(1<<29) #define	Rc	1#define	OE	0x400