20060303a

7 files changed, 654 insertions, 0 deletions

diff --git a/MacOSX/README b/MacOSX/README
new file mode 100644
index 00000000..3fe0c7fc
--- /dev/null
+++ b/MacOSX/README
@@ -0,0 +1,66 @@
+12-Dec-2003
+Emu can use wm with Apple's X11R6 again.
+
+08-Dec-2003
+Inferno Services (6660, 6666-6676, 2202)
+
+26-Aug-2003
+In order to run and use Inferno services appropriately on OSX, you need to ensure that the Sharing System Preferences include an entry in the Firewall section that is turned on and looks like the following line:
+
+Inferno services (6660, 6666-6674)
+
+
+05-Jul-2003
+In order to support 1.4, the build will now use the default 'mk' provided with the Inferno distribution.  You can also copy tcshrc to the Inferno ROOT and source the file from that directory before running or building emu.  Modified mkfiles and sources are now available in the srcMacOSX archive.  You may also want to change 'mkconfig' with the following diff
+
+% cvs diff -r 1.1 mkconfig
+Index: mkconfig
+===================================================================
+RCS file: /usr/local/Repository/cvs/vitanuova/inferno_v14/mkconfig,v
+retrieving revision 1.1
+retrieving revision 1.3
+diff -r1.1 -r1.3
+7c7
+< ROOT=/usr/inferno
+---
+> ROOT=$ROOT
+17c17
+< SYSHOST=Plan9         # build system OS type (Hp, Inferno, Irix, Linux, Nt, Plan9, Solaris)
+---
+> SYSHOST=MacOSX                # build system OS type (Hp, Inferno, Irix, Linux, Nt, Plan9, Solaris)
+25c25
+< OBJTYPE=$objtype
+---
+> OBJTYPE=power
+
+
+
+16-May-2003
+
+The build now uses the open sourced 'mk' from http://www.pdos.lcs.mit.edu/~rsc/software/
+
+There is a file .tcshrc at the root of this tree (..) that can be used to set up the environment required to build emu.
+
+
+
+28-Feb-2001
+
+The initial port has been provided by Corpus Callosum Corporation.
+
+This port of Inferno for Darwin, Mac OS X, and Mac OS X Server hosted environments currently provides base 'emu' support.  Wm, audio, and other services are not currently ported.  It has only been tested on UFS partitions and will require further testing for HFS+ support.
+
+Emu -c1 currently errors out as "Illegal instruction"
+
+Various malloc/free (from libc/System on Mac OS X/Darwin) warnings should be removed in the following version.
+
+eia devices will recognize /dev/ttyd.irda and /dev/ttyd.modem though both are completely untested (need to get updates to the RCX interface to test irda).
+
+The following modification was added to various 'mkfile' to support required redefinition of varios core functions.
+
+	<$ROOT/mkfiles/mkalloc-$SYSHOST-$OBJTYPE
+
+Some of the base libraries and utils will have *.pbproj files which were used to bootstrap the initial build system on Mac OS X (Public Beta).
+
+
+
+"Mac OS X" and "Mac OS X Server" are trade marks of Apple Computer, Inc.
\ No newline at end of file
diff --git a/MacOSX/power/bin/data2c b/MacOSX/power/bin/data2c
new file mode 100755
index 00000000..04622c35
--- /dev/null
+++ b/MacOSX/power/bin/data2c
diff --git a/MacOSX/power/bin/mk b/MacOSX/power/bin/mk
new file mode 100755
index 00000000..2be3415d
--- /dev/null
+++ b/MacOSX/power/bin/mk
diff --git a/MacOSX/power/bin/yacc b/MacOSX/power/bin/yacc
new file mode 100755
index 00000000..fbb0bc16
--- /dev/null
+++ b/MacOSX/power/bin/yacc
diff --git a/MacOSX/power/include/fpuctl.h b/MacOSX/power/include/fpuctl.h
new file mode 100644
index 00000000..c1a83845
--- /dev/null
+++ b/MacOSX/power/include/fpuctl.h
@@ -0,0 +1,81 @@
+/*
+ * MacOSX/Darwin ppc fpu support
+ * Mimic Plan9 floating point support
+ */
+
+#include <architecture/ppc/fp_regs.h>
+
+static __inline__ ulong
+getfcr(void)
+{
+	ppc_fp_scr_t fpscr = get_fp_scr();
+	return ((ulong *)&fpscr)[1];
+}
+
+ulong
+getfsr(void)
+{
+	ppc_fp_scr_t fpscr = get_fp_scr();
+	return ((ulong *)&fpscr)[1];
+}
+
+void
+setfsr(ulong fsr)
+{
+	ppc_fp_scr_t fpscr;
+	// fpscr = get_fp_scr();
+	(((ulong *)&fpscr)[1]) = fsr;
+	set_fp_scr(fpscr);
+}
+
+void
+setfcr(ulong fcr)
+{
+	ppc_fp_scr_t fpscr;
+	// fpscr = get_fp_scr();
+	(((ulong *)&fpscr)[1]) = fcr;
+	set_fp_scr(fpscr);
+}
+
+/* FPSCR */
+#define	FPSFX	(1<<31)	/* exception summary (sticky) */
+#define	FPSEX	(1<<30)	/* enabled exception summary */
+#define	FPSVX	(1<<29)	/* invalid operation exception summary */
+#define	FPSOX	(1<<28)	/* overflow exception OX (sticky) */
+#define	FPSUX	(1<<27)	/* underflow exception UX (sticky) */
+#define	FPSZX	(1<<26)	/* zero divide exception ZX (sticky) */
+#define	FPSXX	(1<<25)	/* inexact exception XX (sticky) */
+#define	FPSVXSNAN (1<<24)	/* invalid operation exception for SNaN (sticky) */
+#define	FPSVXISI	(1<<23)	/* invalid operation exception for ∞-∞ (sticky) */
+#define	FPSVXIDI	(1<<22)	/* invalid operation exception for ∞/∞ (sticky) */
+#define	FPSVXZDZ (1<<21)	/* invalid operation exception for 0/0 (sticky) */
+#define	FPSVXIMZ	(1<<20)	/* invalid operation exception for ∞*0 (sticky) */
+#define	FPSVXVC	(1<<19)	/* invalid operation exception for invalid compare (sticky) */
+#define	FPSFR	(1<<18)	/* fraction rounded */
+#define	FPSFI	(1<<17)	/* fraction inexact */
+#define	FPSFPRF	(1<<16)	/* floating point result class */
+#define	FPSFPCC	(0xF<<12)	/* <, >, =, unordered */
+#define	FPVXCVI	(1<<8)	/* enable exception for invalid integer convert (sticky) */
+
+/* FCR */
+#define	FPVE	(1<<7)	/* invalid operation exception enable */
+#define	FPOVFL	(1<<6)	/* enable overflow exceptions */
+#define	FPUNFL	(1<<5)	/* enable underflow */
+#define	FPZDIV	(1<<4)	/* enable zero divide */
+#define	FPINEX	(1<<3)	/* enable inexact exceptions */
+#define	FPRMASK	(3<<0)	/* rounding mode */
+#define	FPRNR	(0<<0)
+#define	FPRZ	(1<<0)
+#define	FPRPINF	(2<<0)
+#define	FPRNINF	(3<<0)
+#define	FPPEXT	0
+#define	FPPSGL	0
+#define	FPPDBL	0
+#define	FPPMASK	0
+#define	FPINVAL	FPVE
+/* FSR */
+#define	FPAOVFL	FPSOX
+#define	FPAINEX	FPSXX
+#define	FPAUNFL	FPSUX
+#define	FPAZDIV	FPSZX
+#define	FPAINVAL	FPSVX
diff --git a/MacOSX/power/include/lib9.h b/MacOSX/power/include/lib9.h
new file mode 100644
index 00000000..1059b629
--- /dev/null
+++ b/MacOSX/power/include/lib9.h
@@ -0,0 +1,495 @@
+/*
+ * Based on FreeBSD lib9.h
+ * Copyright © 1998, 1999 Lucent Technologies Inc.  All rights reserved.
+ * Revisions Copyright © 1999, 2002 Vita Nuova Limited.  All rights reserved.
+ * Revisions Copyright © 2002, 2003 Corpus Callosum Corporation.  All rights reserved.
+ */
+
+/* define _BSD_SOURCE to use ISO C, POSIX, and 4.4BSD things. */
+#ifndef _BSD_SOURCE
+#define _BSD_SOURCE
+#endif
+#define _LARGEFILE64_SOURCE	1
+#define _FILE_OFFSET_BITS 64
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+// #include "math.h"
+#include <fcntl.h>
+#include <setjmp.h>
+#include <float.h>
+#include <time.h>
+
+#define nil		((void*)0)
+
+// typedef	unsigned short	ushort;
+typedef	unsigned char	uchar;
+typedef unsigned long	ulong;
+// typedef unsigned int	uint;
+typedef	  signed char	schar;
+typedef	long long	vlong;
+typedef	unsigned long long	uvlong;
+typedef ushort		Rune;
+typedef unsigned int	u32int;
+typedef unsigned int	mpdigit;	/* for /sys/include/mp.h */
+typedef unsigned short u16int;
+typedef unsigned char u8int;
+typedef unsigned long uintptr;
+
+/* handle conflicts with host os libs */
+#define	getwd	infgetwd
+#define scalb	infscalb
+#define div 	infdiv
+#define panic	infpanic
+#define rint	infrint
+#define	rcmd	infrcmd
+#undef isnan
+#define	pow10	infpow10
+
+#ifndef EMU
+typedef struct Proc Proc;
+#endif
+
+/*
+ * math module dtoa
+ */
+#include <machine/endian.h>
+#define __BIG_ENDIAN
+
+#define	USED(x)		if(x){}else{}
+#define	SET(x)
+
+#define nelem(x)	(sizeof(x)/sizeof((x)[0]))
+#define	offsetof(s, m)	(ulong)(&(((s*)0)->m))
+#define	assert(x)	if(x){}else _assert("x")
+
+/*
+ * mem and string routines are declared by ANSI/POSIX files above
+ */
+
+extern	char*	strecpy(char*, char*, char*);
+extern	char*	strdup(const char*);
+extern	int	cistrncmp(char*, char*, int);
+extern	int	cistrcmp(char*, char*);
+extern	char*	cistrstr(char*, char*);
+extern	int	tokenize(char*, char**, int);
+extern	vlong	strtoll(const char*, char**, int);
+
+enum
+{
+	UTFmax		= 3,		/* maximum bytes per rune */
+	Runesync	= 0x80,		/* cannot represent part of a UTF sequence (<) */
+	Runeself	= 0x80,		/* rune and UTF sequences are the same (<) */
+	Runeerror	= 0x80		/* decoding error in UTF */
+};
+
+/*
+ * rune routines
+ */
+extern	int	runetochar(char*, Rune*);
+extern	int	chartorune(Rune*, char*);
+extern	int	runelen(long);
+extern	int	runenlen(Rune*, int);
+extern	int	fullrune(char*, int);
+extern	int	utflen(char*);
+extern	int	utfnlen(char*, long);
+extern	char*	utfrune(char*, long);
+extern	char*	utfrrune(char*, long);
+extern	char*	utfutf(char*, char*);
+extern	char*	utfecpy(char*, char*, char*);
+
+extern	Rune*	runestrcat(Rune*, Rune*);
+extern	Rune*	runestrchr(Rune*, Rune);
+extern	int	runestrcmp(Rune*, Rune*);
+extern	Rune*	runestrcpy(Rune*, Rune*);
+extern	Rune*	runestrncpy(Rune*, Rune*, long);
+extern	Rune*	runestrecpy(Rune*, Rune*, Rune*);
+extern	Rune*	runestrdup(Rune*);
+extern	Rune*	runestrncat(Rune*, Rune*, long);
+extern	int	runestrncmp(Rune*, Rune*, long);
+extern	Rune*	runestrrchr(Rune*, Rune);
+extern	long	runestrlen(Rune*);
+extern	Rune*	runestrstr(Rune*, Rune*);
+
+extern	Rune	tolowerrune(Rune);
+extern	Rune	totitlerune(Rune);
+extern	Rune	toupperrune(Rune);
+extern	int	isalpharune(Rune);
+extern	int	islowerrune(Rune);
+extern	int	isspacerune(Rune);
+extern	int	istitlerune(Rune);
+extern	int	isupperrune(Rune);
+
+/*
+ * malloc
+ */
+extern	void*	malloc(size_t);
+extern	void*	mallocz(ulong, int);
+extern	void	free(void*);
+extern	ulong	msize(void*);
+extern	void*	calloc(size_t, size_t);
+extern	void*	realloc(void*, size_t);
+extern	void		setmalloctag(void*, ulong);
+extern	void		setrealloctag(void*, ulong);
+extern	ulong	getmalloctag(void*);
+extern	ulong	getrealloctag(void*);
+extern	void*	malloctopoolblock(void*);
+
+/*
+ * print routines
+ */
+typedef struct Fmt	Fmt;
+struct Fmt{
+	uchar	runes;			/* output buffer is runes or chars? */
+	void	*start;			/* of buffer */
+	void	*to;			/* current place in the buffer */
+	void	*stop;			/* end of the buffer; overwritten if flush fails */
+	int	(*flush)(Fmt *);	/* called when to == stop */
+	void	*farg;			/* to make flush a closure */
+	int	nfmt;			/* num chars formatted so far */
+	va_list	args;			/* args passed to dofmt */
+	int	r;			/* % format Rune */
+	int	width;
+	int	prec;
+	ulong	flags;
+};
+
+enum{
+	FmtWidth	= 1,
+	FmtLeft		= FmtWidth << 1,
+	FmtPrec		= FmtLeft << 1,
+	FmtSharp	= FmtPrec << 1,
+	FmtSpace	= FmtSharp << 1,
+	FmtSign		= FmtSpace << 1,
+	FmtZero		= FmtSign << 1,
+	FmtUnsigned	= FmtZero << 1,
+	FmtShort	= FmtUnsigned << 1,
+	FmtLong		= FmtShort << 1,
+	FmtVLong	= FmtLong << 1,
+	FmtComma	= FmtVLong << 1,
+	FmtByte	= FmtComma << 1,
+
+	FmtFlag		= FmtByte << 1
+};
+
+extern	int	print(char*, ...);
+extern	char*	seprint(char*, char*, char*, ...);
+extern	char*	vseprint(char*, char*, char*, va_list);
+extern	int	snprint(char*, int, char*, ...);
+extern	int	vsnprint(char*, int, char*, va_list);
+extern	char*	smprint(char*, ...);
+extern	char*	vsmprint(char*, va_list);
+extern	int	sprint(char*, char*, ...);
+extern	int	fprint(int, char*, ...);
+extern	int	vfprint(int, char*, va_list);
+
+extern	int	runesprint(Rune*, char*, ...);
+extern	int	runesnprint(Rune*, int, char*, ...);
+extern	int	runevsnprint(Rune*, int, char*, va_list);
+extern	Rune*	runeseprint(Rune*, Rune*, char*, ...);
+extern	Rune*	runevseprint(Rune*, Rune*, char*, va_list);
+extern	Rune*	runesmprint(char*, ...);
+extern	Rune*	runevsmprint(char*, va_list);
+
+extern	int	fmtfdinit(Fmt*, int, char*, int);
+extern	int	fmtfdflush(Fmt*);
+extern	int	fmtstrinit(Fmt*);
+extern	char*	fmtstrflush(Fmt*);
+extern	int	runefmtstrinit(Fmt*);
+extern	Rune*	runefmtstrflush(Fmt*);
+
+extern	int	fmtinstall(int, int (*)(Fmt*));
+extern	int	dofmt(Fmt*, char*);
+extern	int	dorfmt(Fmt*, Rune*);
+extern	int	fmtprint(Fmt*, char*, ...);
+extern	int	fmtvprint(Fmt*, char*, va_list);
+extern	int	fmtrune(Fmt*, int);
+extern	int	fmtstrcpy(Fmt*, char*);
+extern	int	fmtrunestrcpy(Fmt*, Rune*);
+/*
+ * error string for %r
+ * supplied on per os basis, not part of fmt library
+ */
+extern	int	errfmt(Fmt *f);
+
+/*
+ * quoted strings
+ */
+extern	char	*unquotestrdup(char*);
+extern	Rune	*unquoterunestrdup(Rune*);
+extern	char	*quotestrdup(char*);
+extern	Rune	*quoterunestrdup(Rune*);
+extern	int	quotestrfmt(Fmt*);
+extern	int	quoterunestrfmt(Fmt*);
+extern	void	quotefmtinstall(void);
+extern	int	(*doquote)(int);
+
+/*
+ * random number
+ */
+
+extern	int	nrand(int);
+extern	ulong	truerand(void);
+extern	ulong	ntruerand(ulong);
+
+/*
+ * math
+ */
+extern	int	isNaN(double);
+extern	int	isInf(double, int);
+extern	double	pow(double, double);
+
+/*
+ * Time-of-day
+ */
+
+typedef struct Tm Tm;
+struct Tm {
+	int	sec;
+	int	min;
+	int	hour;
+	int	mday;
+	int	mon;
+	int	year;
+	int	wday;
+	int	yday;
+	char	zone[4];
+	int	tzoff;
+};
+extern	vlong	osnsec(void);
+#define	nsec	osnsec
+
+/*
+ * one-of-a-kind
+ */
+extern	void	_assert(char*);
+extern	double	charstod(int(*)(void*), void*);
+extern	char*	cleanname(char*);
+extern	double	frexp(double, int*);
+extern	ulong	getcallerpc(void*);
+extern	int	getfields(char*, char**, int, int, char*);
+extern	char*	getuser(void);
+extern	char*	getwd(char*, int);
+extern	double	ipow10(int);
+extern	double	ldexp(double, int);
+extern	double	modf(double, double*);
+extern	void	perror(const char*);
+extern	double	pow10(int);
+extern	uvlong	strtoull(const char*, char**, int);
+extern	void	sysfatal(char*, ...);
+extern	int	dec64(uchar*, int, char*, int);
+extern	int	enc64(char*, int, uchar*, int);
+extern	int	dec32(uchar*, int, char*, int);
+extern	int	enc32(char*, int, uchar*, int);
+extern	int	dec16(uchar*, int, char*, int);
+extern	int	enc16(char*, int, uchar*, int);
+extern	int	encodefmt(Fmt*);
+
+/*
+ *  synchronization
+ */
+typedef
+struct Lock {
+	ulong	val;
+	int	pid;
+} Lock;
+
+extern ulong	_tas(ulong*);
+
+extern	void	lock(Lock*);
+extern	void	unlock(Lock*);
+extern	int	canlock(Lock*);
+
+typedef struct QLock QLock;
+struct QLock
+{
+	Lock	use;			/* to access Qlock structure */
+	Proc	*head;			/* next process waiting for object */
+	Proc	*tail;			/* last process waiting for object */
+	int	locked;			/* flag */
+};
+
+extern	void	qlock(QLock*);
+extern	void	qunlock(QLock*);
+extern	int	canqlock(QLock*);
+extern	void	_qlockinit(ulong (*)(ulong, ulong));	/* called only by the thread library */
+
+typedef
+struct RWLock
+{
+	Lock	l;			/* Lock modify lock */
+	QLock	x;			/* Mutual exclusion lock */
+	QLock	k;			/* Lock for waiting writers */
+	int	readers;		/* Count of readers in lock */
+} RWLock;
+
+extern	int	canrlock(RWLock*);
+extern	int	canwlock(RWLock*);
+extern	void	rlock(RWLock*);
+extern	void	runlock(RWLock*);
+extern	void	wlock(RWLock*);
+extern	void	wunlock(RWLock*);
+
+/*
+ * network dialing
+ */
+#define NETPATHLEN 40
+
+/*
+ * system calls
+ *
+ */
+
+#define	STATMAX	65535U	/* max length of machine-independent stat structure */
+#define	DIRMAX	(sizeof(Dir)+STATMAX)	/* max length of Dir structure */
+#define	ERRMAX	128	/* max length of error string */
+
+#define	MORDER	0x0003	/* mask for bits defining order of mounting */
+#define	MREPL	0x0000	/* mount replaces object */
+#define	MBEFORE	0x0001	/* mount goes before others in union directory */
+#define	MAFTER	0x0002	/* mount goes after others in union directory */
+#define	MCREATE	0x0004	/* permit creation in mounted directory */
+#define	MCACHE	0x0010	/* cache some data */
+#define	MMASK	0x0017	/* all bits on */
+
+#define	OREAD	0	/* open for read */
+#define	OWRITE	1	/* write */
+#define	ORDWR	2	/* read and write */
+#define	OEXEC	3	/* execute, == read but check execute permission */
+#define	OTRUNC	16	/* or'ed in (except for exec), truncate file first */
+#define	OCEXEC	32	/* or'ed in, close on exec */
+#define	ORCLOSE	64	/* or'ed in, remove on close */
+#define	OEXCL	0x1000	/* or'ed in, exclusive use (create only) */
+
+#define	AEXIST	0	/* accessible: exists */
+#define	AEXEC	1	/* execute access */
+#define	AWRITE	2	/* write access */
+#define	AREAD	4	/* read access */
+
+/* bits in Qid.type */
+#define QTDIR		0x80		/* type bit for directories */
+#define QTAPPEND	0x40		/* type bit for append only files */
+#define QTEXCL		0x20		/* type bit for exclusive use files */
+#define QTMOUNT		0x10		/* type bit for mounted channel */
+#define QTAUTH		0x08		/* type bit for authentication file */
+#define QTFILE		0x00		/* plain file */
+
+/* bits in Dir.mode */
+#define DMDIR		0x80000000	/* mode bit for directories */
+#define DMAPPEND	0x40000000	/* mode bit for append only files */
+#define DMEXCL		0x20000000	/* mode bit for exclusive use files */
+#define DMMOUNT		0x10000000	/* mode bit for mounted channel */
+#define DMAUTH		0x08000000	/* mode bit for authentication file */
+#define DMREAD		0x4		/* mode bit for read permission */
+#define DMWRITE		0x2		/* mode bit for write permission */
+#define DMEXEC		0x1		/* mode bit for execute permission */
+
+typedef
+struct Qid
+{
+	uvlong	path;
+	ulong	vers;
+	uchar	type;
+} Qid;
+
+typedef
+struct Dir {
+	/* system-modified data */
+	ushort	type;	/* server type */
+	uint	dev;	/* server subtype */
+	/* file data */
+	Qid	qid;	/* unique id from server */
+	ulong	mode;	/* permissions */
+	ulong	atime;	/* last read time */
+	ulong	mtime;	/* last write time */
+	vlong	length;	/* file length */
+	char	*name;	/* last element of path */
+	char	*uid;	/* owner name */
+	char	*gid;	/* group name */
+	char	*muid;	/* last modifier name */
+} Dir;
+
+extern	Dir*	dirstat(char*);
+extern	Dir*	dirfstat(int);
+extern	int	dirwstat(char*, Dir*);
+extern	int	dirfwstat(int, Dir*);
+extern	long	dirread(int, Dir**);
+extern	void	nulldir(Dir*);
+extern	long	dirreadall(int, Dir**);
+
+typedef
+struct Waitmsg
+{
+	int pid;	/* of loved one */
+	ulong time[3];	/* of loved one & descendants */
+	char	*msg;
+} Waitmsg;
+
+extern	void	_exits(char*);
+
+extern	void	exits(char*);
+extern	int	create(char*, int, int);
+extern	int	errstr(char*, uint);
+
+extern	void	perror(const char*);
+extern	long	readn(int, void*, long);
+extern	int	remove(const char*);
+extern	void	rerrstr(char*, uint);
+extern	vlong	seek(int, vlong, int);
+extern	int	segflush(void*, ulong);
+extern	void	werrstr(char*, ...);
+
+extern char *argv0;
+#define	ARGBEGIN	for((argv0||(argv0=*argv)),argv++,argc--;\
+			    argv[0] && argv[0][0]=='-' && argv[0][1];\
+			    argc--, argv++) {\
+				char *_args, *_argt;\
+				Rune _argc;\
+				_args = &argv[0][1];\
+				if(_args[0]=='-' && _args[1]==0){\
+					argc--; argv++; break;\
+				}\
+				_argc = 0;\
+				while(*_args && (_args += chartorune(&_argc, _args)))\
+				switch(_argc)
+#define	ARGEND		SET(_argt);USED(_argt);USED(_argc); USED(_args);}USED(argv); USED(argc);
+#define	ARGF()		(_argt=_args, _args="",\
+				(*_argt? _argt: argv[1]? (argc--, *++argv): 0))
+#define	EARGF(x)	(_argt=_args, _args="",\
+				(*_argt? _argt: argv[1]? (argc--, *++argv): ((x), abort(), (char*)0)))
+
+#define	ARGC()		_argc
+
+/*
+ *	Extensions for Inferno to basic libc.h
+ */
+
+#define	setbinmode()
+
+/*
+ *	Extensions for emu kernel emulation
+ */
+#ifdef	EMU
+
+extern Proc *getup(void);
+#define	up	(getup())
+
+/*
+ * This structure must agree with FPsave and FPrestore asm routines
+ */
+
+#include <architecture/ppc/fp_regs.h>
+
+typedef union {
+	double 			__dbl;
+	ppc_fp_scr_t	__src;
+} FPU;
+
+typedef sigjmp_buf osjmpbuf;
+#define	ossetjmp(buf)	sigsetjmp(buf, 1)
+#endif
diff --git a/MacOSX/tcshrc b/MacOSX/tcshrc
new file mode 100644
index 00000000..94793c7d
--- /dev/null
+++ b/MacOSX/tcshrc
@@ -0,0 +1,12 @@
+#
+# needed for the build process
+#
+set path=( $path `pwd`/MacOSX/power/bin )
+
+setenv EMU "-r`pwd` -g1024x768"
+
+setenv ROOT `pwd`
+setenv SYSHOST MacOSX
+setenv OBJTYPE power
+setenv ACIDLIB $ROOT/lib/acid
+