Plan 9 from Bell Labs’s /usr/web/sources/extra/changes/2005/1002

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


Add -p option.
 [rsc] --rw-rw-r-- M 733409 glenda sys 942 Oct  2 08:17 sys/man/1/netstat
	/n/sourcesdump/2005/1002/plan9/sys/man/1/netstat:6,11 - 
	/n/sourcesdump/2005/1003/plan9/sys/man/1/netstat:6,14
	  [
	  .B -in
	  ] [
	+ .B -p
	+ .I proto
	+ ] [
	  .I netmtpt
	  ]
	  .SH DESCRIPTION
	/n/sourcesdump/2005/1002/plan9/sys/man/1/netstat:14,36 - 
	/n/sourcesdump/2005/1003/plan9/sys/man/1/netstat:17,48
	  .IR netmtpt ,
	  default
	  .BR /net .
	- With the
	- .B \-i
	- option, it reports one line per network interface listing the
	- device, MTU, local address, masl, remote address, packets in,
	- packets out, errors in, and errors out for this interface.
	  For
	  .I IP
	- connections
	+ connections,
	  .I netstat
	- reports the connection number, user,
	+ reports the protocol, connection number, user,
	  connection state, local port, remote port and
	  remote address.
	- .I Netstat
	- looks up port numbers and addresses in the network databases
	- to print symbolic names if possible, but if the
	+ .PP
	+ The options are:
	+ .TP
	+ .B -i
	+ Instead of the usual listing, print one line per network interface.
	+ Each line gives the
	+ device, MTU, local address, mask, remote address, packets in,
	+ packets out, errors in, and errors out for this interface.
	+ .TP
	  .B -n
	- option is specified, it does not translate to symbolic form.
	+ By default,
	+ .I netstat
	+ looks up port numbers and addresses in the network databases
	+ to print symbolic names if possible.
	+ This option disables such translation.
	+ .TP
	+ .B -p
	+ Show only connections with the given protocol.
	+ .PD
	  .SH FILES
	  .B /net/*/*
	  .SH SOURCE
 [rsc] --rw-rw-r-- M 733409 glenda sys 4086 Oct  2 08:17 sys/src/cmd/netstat.c
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/netstat.c:10,20 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/netstat.c:10,23
	  
	  Biobuf	out;
	  char	*netroot;
	+ char *proto[20];
	+ int nproto;
	  int	notrans;
	  
	  void
	- usage(void){
	- 	fprint(2, "usage: %s [-in] [network-dir]\n", argv0);
	+ usage(void)
	+ {
	+ 	fprint(2, "usage: %s [-in] [-p proto] [network-dir]\n", argv0);
	  	exits("usage");
	  }
	  
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/netstat.c:27,37 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/netstat.c:30,45
	  	char buf[128];
	  
	  	ARGBEGIN{
	+ 	case 'i':
	+ 		justinterfaces = 1;
	+ 		break;
	  	case 'n':
	  		notrans = 1;
	  		break;
	- 	case 'i':
	- 		justinterfaces = 1;
	+ 	case 'p':
	+ 		if(nproto >= nelem(proto))
	+ 			sysfatal("too many protos");
	+ 		proto[nproto++] = EARGF(usage());
	  		break;
	  	default:
	  		usage();
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/netstat.c:59,73 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/netstat.c:67,85
	  	if(fd < 0)
	  		sysfatal("open %s: %r", netroot);
	  
	- 	tot = dirreadall(fd, &d);
	- 	for(i=0; i<tot; i++){
	- 		if(strcmp(d[i].name, "ipifc") == 0)
	- 			continue;
	- 		snprint(buf, sizeof buf, "%s/%s/0/local", netroot, d[i].name);
	- 		if(access(buf, 0) >= 0)
	- 			nstat(d[i].name, pip);
	+ 	if(nproto){
	+ 		for(i=0; i<nproto; i++)
	+ 			nstat(proto[i], pip);
	+ 	}else{
	+ 		tot = dirreadall(fd, &d);
	+ 		for(i=0; i<tot; i++){
	+ 			if(strcmp(d[i].name, "ipifc") == 0)
	+ 				continue;
	+ 			snprint(buf, sizeof buf, "%s/%s/0/local", netroot, d[i].name);
	+ 			if(access(buf, 0) >= 0)
	+ 				nstat(d[i].name, pip);
	+ 		}
	  	}
	- 
	  	exits(0);
	  }
	  
 [sys] --rwxrwxr-x M 733409 glenda sys 84664 Oct  2 23:11 386/bin/netstat
	/sys/src/cmd/netstat.c:getport
	/sys/src/cmd/netstat.c:main
	/sys/src/cmd/netstat.c:nstat
	/sys/src/cmd/netstat.c:pip
	/sys/src/cmd/netstat.c:pipifc
	/sys/src/cmd/netstat.c:usage
	/sys/src/libc/9sys/dirread.c:dirread
	/sys/src/libc/9sys/dirread.c:dirreadall
	/sys/src/libc/fmt/fmt.c:_fmtinstall
	/sys/src/libc/port/rune.c:chartorune

Add "." entry as expected by dev.c.
 [rsc] --rw-rw-r-- M 733409 presotto sys 6291 Oct  2 08:10 sys/src/9/pc/devlm78.c
	/n/sourcesdump/2005/1002/plan9/sys/src/9/pc/devlm78.c:57,62 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/9/pc/devlm78.c:57,63
	  };
	  
	  static Dirtab lm78dir[] = {
	+ 	".",			{ Qdir, 0, QTDIR},	0,	0555,
	  	"lm78vram",	{ Qlm78vram, 0 },	0,	0444,
	  };
	  

64-bit fix.
 [rsc] --rw-rw-r-- M 733409 glenda sys 3126 Oct  2 08:11 sys/src/cmd/9660srv/iobuf.c
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/9660srv/iobuf.c:42,48 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/9660srv/iobuf.c:42,48
	  
	  	n = NCLUST*sizeof(Ioclust)+NCLUST*BUFPERCLUST*(sizeof(Iobuf)+Sectorsize);
	  	mem = sbrk(n);
	- 	if((long)mem == -1)
	+ 	if(mem == (void*)-1)
	  		panic(0, "iobuf_init");
	  	memset(mem, 0, n);
	  

Fix error message, mark dead code as comment.
 [rsc] --rw-rw-r-- M 733409 rsc sys 33313 Oct  2 08:11 sys/src/cmd/fossil/9fsys.c
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/fossil/9fsys.c:284,290 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/fossil/9fsys.c:284,291
	  	if(argc)
	  		return cliError(usage);
	  
	- 	return cliError("close isn't working yet; sync and then kill fossil");
	+ 	return cliError("close isn't working yet; halt %s and then kill fossil",
	+ 		fsys->name);
	  
	  	/*
	  	 * Oooh. This could be hard. What if fsys->ref != 1?
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/fossil/9fsys.c:292,298 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/fossil/9fsys.c:293,298
	  	 * gracefully detect it's still busy?
	  	 *
	  	 * More thought and care needed here.
	- 	 */
	  	fsClose(fsys->fs);
	  	fsys->fs = nil;
	  	vtClose(fsys->session);
	/n/sourcesdump/2005/1002/plan9/sys/src/cmd/fossil/9fsys.c:304,309 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/cmd/fossil/9fsys.c:304,310
	  	}
	  
	  	return 1;
	+ 	 */
	  }
	  
	  static int
 [sys] --rwxrwxr-x M 733409 rsc sys 360426 Oct  2 23:11 386/bin/fossil/fossil
	/sys/src/cmd/fossil/9fsys.c:cmdFsys
	/sys/src/cmd/fossil/9fsys.c:fsckClose
	/sys/src/cmd/fossil/9fsys.c:fsckClre
	/sys/src/cmd/fossil/9fsys.c:fsckClrp
	/sys/src/cmd/fossil/9fsys.c:fsysBfree
	/sys/src/cmd/fossil/9fsys.c:fsysBlock
	/sys/src/cmd/fossil/9fsys.c:fsysCheck
	/sys/src/cmd/fossil/9fsys.c:fsysClose
	/sys/src/cmd/fossil/9fsys.c:fsysClrep
	/sys/src/cmd/fossil/9fsys.c:fsysClri
	/sys/src/cmd/fossil/9fsys.c:fsysConfig
	/sys/src/cmd/fossil/9fsys.c:fsysCreate
	/sys/src/cmd/fossil/9fsys.c:fsysDf
	/sys/src/cmd/fossil/9fsys.c:fsysEpoch
	/sys/src/cmd/fossil/9fsys.c:fsysEsearch
	/sys/src/cmd/fossil/9fsys.c:fsysEsearch1
	/sys/src/cmd/fossil/9fsys.c:fsysHalt
	/sys/src/cmd/fossil/9fsys.c:fsysInit
	/sys/src/cmd/fossil/9fsys.c:fsysLabel
	/sys/src/cmd/fossil/9fsys.c:fsysOpen
	/sys/src/cmd/fossil/9fsys.c:fsysPrintStat
	/sys/src/cmd/fossil/9fsys.c:fsysRemove
	/sys/src/cmd/fossil/9fsys.c:fsysSnap
	/sys/src/cmd/fossil/9fsys.c:fsysSnapClean
	/sys/src/cmd/fossil/9fsys.c:fsysSnapTime
	/sys/src/cmd/fossil/9fsys.c:fsysStat
	/sys/src/cmd/fossil/9fsys.c:fsysSync
	/sys/src/cmd/fossil/9fsys.c:fsysUnconfig
	/sys/src/cmd/fossil/9fsys.c:fsysUnhalt
	/sys/src/cmd/fossil/9fsys.c:fsysVac
	/sys/src/cmd/fossil/9fsys.c:fsysVenti
	/sys/src/cmd/fossil/9fsys.c:fsysWstat
	/sys/src/cmd/fossil/9fsys.c:fsysXXX
	/sys/src/cmd/fossil/9fsys.c:fsysXXX1

Change xs.h into a proper C file.
 [rsc] --rw-rw-r-- M 733409 jmk sys 1285 Oct  2 12:48 sys/src/games/4s.c
	/n/sourcesdump/2005/1002/plan9/sys/src/games/4s.c:1,21 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/4s.c:1,7
	- #include <u.h>
	- #include <libc.h>
	- #include <draw.h>
	- #include <thread.h>
	- #include <cursor.h>
	- #include <mouse.h>
	- #include <keyboard.h>
	+ #include "xs.h"
	  
	- #define	N	4
	+ int N = 4;
	  
	- typedef struct Piece Piece;
	- struct Piece{
	- 	short	rot;
	- 	short	tx;
	- 	Point	sz;
	- 	Point	d[N];
	- };
	- 
	  Piece pieces[]={
	  	{ 0, 0, 4,1,  { 0,0,  1,0,  1,0,  1,0 }},
	  	{ 1, 0, 1,4,  { 0,0,  0,1,  0,1,  0,1 }},
	/n/sourcesdump/2005/1002/plan9/sys/src/games/4s.c:53,56 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/4s.c:39,43
	  	{ 3, 6, 2,3,  { 0,0,  0,1,  1,0,  0,1 }},
	  };
	  
	- #include "xs.h"
	+ int NP = nelem(pieces);
	+ 
 [rsc] --rw-rw-r-- M 733409 jmk sys 3621 Oct  2 12:48 sys/src/games/5s.c
	/n/sourcesdump/2005/1002/plan9/sys/src/games/5s.c:1,21 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/5s.c:1,7
	- #include <u.h>
	- #include <libc.h>
	- #include <draw.h>
	- #include <thread.h>
	- #include <cursor.h>
	- #include <mouse.h>
	- #include <keyboard.h>
	+ #include "xs.h"
	  
	- #define	N	5
	+ int N = 5;
	  
	- typedef struct Piece Piece;
	- struct Piece{
	- 	short	rot;
	- 	short	tx;
	- 	Point	sz;
	- 	Point	d[N];
	- };
	- 
	  Piece pieces[]={
	  	{ 0, 1, 5,1,  { 0,0,  1,0,  1,0,  1,0,  1,0 }},
	  	{ 1, 1, 1,5,  { 0,0,  0,1,  0,1,  0,1,  0,1 }},
	/n/sourcesdump/2005/1002/plan9/sys/src/games/5s.c:109,112 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/5s.c:95,99
	  
	  };
	  
	- #include "xs.h"
	+ int NP = nelem(pieces);
	+ 
 [rsc] --rw-rw-r-- M 733409 jmk sys 586 Oct  2 12:49 sys/src/games/mkfile
	/n/sourcesdump/2005/1002/plan9/sys/src/games/mkfile:16,23 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/mkfile:16,23
	  	mahjongg\
	  	sokoban\
	  
	- 4s.$O:	xs.h
	- 5s.$O:	xs.h
	+ 4s.$O 5s.$O xs.$O:	xs.h
	+ $O.4s $O.5s: xs.$O
	  catclock.$O:	catback.p eyes.p
	  
	  all:V:	dirall
 [rsc] --rw-rw-r-- M 733409 rsc sys 17124 Oct  2 12:48 sys/src/games/xs.c
 [rsc] --rw-rw-r-- M 733409 jmk sys 292 Oct  2 12:48 sys/src/games/xs.h
	/n/sourcesdump/2005/1002/plan9/sys/src/games/xs.h:1,895 - 
	/n/sourcesdump/2005/1003/plan9/sys/src/games/xs.h:1,24
	- /*
	-  * engine for 4s, 5s, etc
	-  * need to define N and pieces table before including this
	-  */
	+ #include <u.h>
	+ #include <libc.h>
	+ #include <draw.h>
	+ #include <thread.h>
	+ #include <cursor.h>
	+ #include <mouse.h>
	+ #include <keyboard.h>
	  
	- Cursor whitearrow = {
	- 	{0, 0},
	- 	{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFC, 
	- 	 0xFF, 0xF0, 0xFF, 0xF0, 0xFF, 0xF8, 0xFF, 0xFC, 
	- 	 0xFF, 0xFE, 0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFC, 
	- 	 0xF3, 0xF8, 0xF1, 0xF0, 0xE0, 0xE0, 0xC0, 0x40, },
	- 	{0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0x06, 0xC0, 0x1C, 
	- 	 0xC0, 0x30, 0xC0, 0x30, 0xC0, 0x38, 0xC0, 0x1C, 
	- 	 0xC0, 0x0E, 0xC0, 0x07, 0xCE, 0x0E, 0xDF, 0x1C, 
	- 	 0xD3, 0xB8, 0xF1, 0xF0, 0xE0, 0xE0, 0xC0, 0x40, }
	- };
	- 
	  enum
	  {
	- 	CNone	= 0,
	- 	CBounds	= 1,
	- 	CPiece	= 2,
	- 	NX	= 10,
	- 	NY	= 20,
	+ 	MAXN = 5
	  };
	  
	- enum{
	- 	TIMER,
	- 	MOUSE,
	- 	RESHAPE,
	- 	KBD,
	- 	SUSPEND,
	- 	NALT
	+ typedef struct Piece Piece;
	+ struct Piece{
	+ 	short	rot;
	+ 	short	tx;
	+ 	Point	sz;
	+ 	Point	d[MAXN];
	  };
	  
	- #define	NP	(sizeof pieces/sizeof(Piece))
	+ extern int N, NP;
	+ extern Piece pieces[];
	  
	- char		board[NY][NX];
	- Rectangle	rboard;
	- Point		pscore;
	- Point		scoresz;
	- int		pcsz = 32;
	- Point		pos;
	- Image	*bb, *bbmask, *bb2, *bb2mask;
	- Image	*whitemask;
	- Rectangle	br, br2;
	- long		points;
	- int		dt;
	- int		DY;
	- int		DMOUSE;
	- int		lastmx;
	- Mouse	mouse;
	- int		newscreen;
	- Channel	*timerc;
	- Channel	*suspc;
	- Channel	*mousec;
	- Channel	*kbdc;
	- Mousectl	*mousectl;
	- Keyboardctl	*kbdctl;
	- int		suspended;
	- 
	- void		redraw(int);
	- 
	- int	tsleep;
	- 
	- Piece *piece;
	- 
	- #define	NCOL	10
	- 
	- uchar txbits[NCOL][32]={
	- 	{0xDD,0xDD,0xFF,0xFF,0x77,0x77,0xFF,0xFF,
	- 	 0xDD,0xDD,0xFF,0xFF,0x77,0x77,0xFF,0xFF,
	- 	 0xDD,0xDD,0xFF,0xFF,0x77,0x77,0xFF,0xFF,
	- 	 0xDD,0xDD,0xFF,0xFF,0x77,0x77,0xFF,0xFF},
	- 	{0xDD,0xDD,0x77,0x77,0xDD,0xDD,0x77,0x77,
	- 	 0xDD,0xDD,0x77,0x77,0xDD,0xDD,0x77,0x77,
	- 	 0xDD,0xDD,0x77,0x77,0xDD,0xDD,0x77,0x77,
	- 	 0xDD,0xDD,0x77,0x77,0xDD,0xDD,0x77,0x77},
	- 	{0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55},
	- 	{0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55,
	- 	 0xAA,0xAA,0x55,0x55,0xAA,0xAA,0x55,0x55},
	- 	{0x22,0x22,0x88,0x88,0x22,0x22,0x88,0x88,
	- 	 0x22,0x22,0x88,0x88,0x22,0x22,0x88,0x88,
	- 	 0x22,0x22,0x88,0x88,0x22,0x22,0x88,0x88,
	- 	 0x22,0x22,0x88,0x88,0x22,0x22,0x88,0x88},
	- 	{0x22,0x22,0x00,0x00,0x88,0x88,0x00,0x00,
	- 	 0x22,0x22,0x00,0x00,0x88,0x88,0x00,0x00,
	- 	 0x22,0x22,0x00,0x00,0x88,0x88,0x00,0x00,
	- 	 0x22,0x22,0x00,0x00,0x88,0x88,0x00,0x00},
	- 	{0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00},
	- 	{0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
	- 	 0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00},
	- 	{0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,
	- 	 0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,
	- 	 0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,
	- 	 0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC,0xCC},
	- 	{0xCC,0xCC,0xCC,0xCC,0x33,0x33,0x33,0x33,
	- 	 0xCC,0xCC,0xCC,0xCC,0x33,0x33,0x33,0x33,
	- 	 0xCC,0xCC,0xCC,0xCC,0x33,0x33,0x33,0x33,
	- 	 0xCC,0xCC,0xCC,0xCC,0x33,0x33,0x33,0x33},
	- };
	- 
	- int txpix[NCOL] = {
	- 	DYellow,	/* yellow */
	- 	DCyan,	/* cyan */
	- 	DGreen,	/* lime green */
	- 	DGreyblue,	/* slate */
	- 	DRed,	/* red */
	- 	DGreygreen,	/* olive green */
	- 	DBlue,	/* blue */
	- 	0xFF55AAFF,	/* pink */
	- 	0xFFAAFFFF,	/* lavender */
	- 	0xBB005DFF,	/* maroon */
	- };
	- 
	- Image *tx[NCOL];
	- 
	- int
	- movemouse(void)
	- {
	- 	mouse.xy = Pt(rboard.min.x + Dx(rboard)/2, rboard.min.y +Dy(rboard)/2);
	- 	moveto(mousectl, mouse.xy);
	- 	return mouse.xy.x;
	- }
	- 
	- int
	- warp(Point p, int x)
	- {
	- 	if (!suspended && piece != nil) {
	- 		x = pos.x + piece->sz.x*pcsz/2;
	- 		if (p.y < rboard.min.y)
	- 			p.y = rboard.min.y;
	- 		if (p.y >= rboard.max.y)
	- 			p.y = rboard.max.y - 1;
	- 		moveto(mousectl, Pt(x, p.y));
	- 	}
	- 	return x;
	- }
	- 
	- Piece *
	- rotr(Piece *p)
	- {
	- 	if(p->rot == 3)
	- 		return p-3;
	- 	return p+1;
	- }
	- 
	- Piece *
	- rotl(Piece *p)
	- {
	- 	if(p->rot == 0)
	- 		return p+3;
	- 	return p-1;
	- }
	- 
	- int
	- collide(Point pt, Piece *p)
	- {
	- 	int i;
	- 	int c = CNone;
	- 
	- 	pt.x = (pt.x - rboard.min.x) / pcsz;
	- 	pt.y = (pt.y - rboard.min.y) / pcsz;
	- 	for(i=0; i<N; i++){
	- 		pt.x += p->d[i].x;
	- 		pt.y += p->d[i].y;
	- 		if(pt.x<0 || pt.x>=NX || pt.y<0 || pt.y>=NY)
	- 			c |= CBounds;
	- 		if(board[pt.y][pt.x])
	- 			c |= CPiece;
	- 	}
	- 	return c;
	- }
	- 
	- int
	- collider(Point pt, Point pmax)
	- {
	- 	int i, j, pi, pj, n, m;
	- 
	- 	pi = (pt.x - rboard.min.x) / pcsz;
	- 	pj = (pt.y - rboard.min.y) / pcsz;
	- 	n = pmax.x / pcsz;
	- 	m = pmax.y / pcsz + 1;
	- 	for(i = pi; i < pi+n && i < NX; i++)
	- 		for(j = pj; j < pj+m && j < NY; j++)
	- 			if(board[j][i])
	- 				return 1;
	- 	return 0;
	- }
	- 
	- void
	- setpiece(Piece *p){
	- 	int i;
	- 	Rectangle r, r2;
	- 	Point op, delta;
	- 
	- 	draw(bb, bb->r, display->white, nil, ZP);
	- 	draw(bbmask, bbmask->r, display->transparent, nil, ZP);
	- 	br = Rect(0, 0, 0, 0);
	- 	br2 = br;
	- 	piece = p;
	- 	if(p == 0)
	- 		return;
	- 	r.min = bb->r.min;
	- 	for(i=0; i<N; i++){
	- 		r.min.x += p->d[i].x*pcsz;
	- 		r.min.y += p->d[i].y*pcsz;
	- 		r.max.x = r.min.x + pcsz;
	- 		r.max.y = r.min.y + pcsz;
	- 		if(i == 0){
	- 			draw(bb, r, display->black, nil, ZP);
	- 			draw(bb, insetrect(r, 1), tx[piece->tx], nil, ZP);
	- 			draw(bbmask, r, display->opaque, nil, ZP);
	- 			op = r.min;
	- 		}else{
	- 			draw(bb, r, bb, nil, op);
	- 			draw(bbmask, r, bbmask, nil, op);
	- 		}
	- 		if(br.max.x < r.max.x)
	- 			br.max.x = r.max.x;
	- 		if(br.max.y < r.max.y)
	- 			br.max.y = r.max.y;
	- 	}
	- 	br.max = subpt(br.max, bb->r.min);
	- 	delta = Pt(0,DY);
	- 	br2.max = addpt(br.max, delta);
	- 	r = rectaddpt(br, bb2->r.min);
	- 	r2 = rectaddpt(br2, bb2->r.min);
	- 	draw(bb2, r2, display->white, nil, ZP);
	- 	draw(bb2, rectaddpt(r,delta), bb, nil, bb->r.min);
	- 	draw(bb2mask, r2, display->transparent, nil, ZP);
	- 	draw(bb2mask, r, display->opaque, bbmask, bb->r.min);
	- 	draw(bb2mask, rectaddpt(r,delta), display->opaque, bbmask, bb->r.min);
	- }
	- 
	- void
	- drawpiece(void){
	- 	draw(screen, rectaddpt(br, pos), bb, bbmask, bb->r.min);
	- 	if (suspended)
	- 		draw(screen, rectaddpt(br, pos), display->white, whitemask, ZP);
	- }
	- 
	- void
	- undrawpiece(void)
	- {
	- 	Image *mask = nil;
	- 	if(collider(pos, br.max))
	- 		mask = bbmask;
	- 	draw(screen, rectaddpt(br, pos), display->white, mask, bb->r.min);
	- }
	- 
	- void
	- rest(void)
	- {
	- 	int i;
	- 	Point pt;
	- 
	- 	pt = divpt(subpt(pos, rboard.min), pcsz);
	- 	for(i=0; i<N; i++){
	- 		pt.x += piece->d[i].x;
	- 		pt.y += piece->d[i].y;
	- 		board[pt.y][pt.x] = piece->tx+16;
	- 	}
	- }
	- 
	- int
	- canfit(Piece *p)
	- {
	- 	static int dx[]={0, -1, 1, -2, 2, -3, 3, 4, -4};
	- 	int i, j;
	- 	Point z;
	- 
	- 	j = N + 1;
	- 	if(j >= 4){
	- 		j = p->sz.x;
	- 		if(j<p->sz.y)
	- 			j = p->sz.y;
	- 		j = 2*j-1;
	- 	}
	- 	for(i=0; i<j; i++){
	- 		z.x = pos.x + dx[i]*pcsz;
	- 		z.y = pos.y;
	- 		if(!collide(z, p)){
	- 			z.y = pos.y + pcsz-1;
	- 			if(!collide(z, p)){
	- 				undrawpiece();
	- 				pos.x = z.x;
	- 				return 1;
	- 			}
	- 		}
	- 	}
	- 	return 0;
	- }
	- 
	- void
	- score(int p)
	- {
	- 	char buf[128];
	- 
	- 	points += p;
	- 	snprint(buf, sizeof(buf), "%.6ld", points);
	- 	draw(screen, Rpt(pscore, addpt(pscore, scoresz)), display->white, nil, ZP);
	- 	string(screen, pscore, display->black, ZP, font, buf);
	- }
	- 
	- void
	- drawsq(Image *b, Point p, int ptx){
	- 	Rectangle r;
	- 
	- 	r.min = p;
	- 	r.max.x = r.min.x+pcsz;
	- 	r.max.y = r.min.y+pcsz;
	- 	draw(b, r, display->black, nil, ZP);
	- 	draw(b, insetrect(r, 1), tx[ptx], nil, ZP);
	- }
	- 
	- void
	- drawboard(void)
	- {
	- 	int i, j;
	- 
	- 	border(screen, insetrect(rboard, -2), 2, display->black, ZP);
	- 	draw(screen, Rect(rboard.min.x, rboard.min.y-2, rboard.max.x, rboard.min.y),
	- 		display->white, nil, ZP);
	- 	for(i=0; i<NY; i++)
	- 		for(j=0; j<NX; j++)
	- 			if(board[i][j])
	- 				drawsq(screen, Pt(rboard.min.x+j*pcsz, rboard.min.y+i*pcsz), board[i][j]-16);
	- 	score(0);
	- 	if (suspended)
	- 		draw(screen, screen->r, display->white, whitemask, ZP);
	- }
	- 
	- void
	- choosepiece(void)
	- {
	- 	int i;
	- 
	- 	do{
	- 		i = nrand(NP);
	- 		setpiece(&pieces[i]);
	- 		pos = rboard.min;
	- 		pos.x += nrand(NX)*pcsz;
	- 	}while(collide(Pt(pos.x, pos.y+pcsz-DY), piece));
	- 	drawpiece();
	- 	flushimage(display, 1);
	- }
	- 
	- int
	- movepiece(void)
	- {
	- 	Image *mask = nil;
	- 
	- 	if(collide(Pt(pos.x, pos.y+pcsz), piece))
	- 		return 0;
	- 	if(collider(pos, br2.max))
	- 		mask = bb2mask;
	- 	draw(screen, rectaddpt(br2, pos), bb2, mask, bb2->r.min);
	- 	pos.y += DY;
	- 	flushimage(display, 1);
	- 	return 1;
	- }
	- 
	- void
	- suspend(int s)
	- {
	- 	suspended = s;
	- 	if (suspended)
	- 		setcursor(mousectl, &whitearrow);
	- 	else
	- 		setcursor(mousectl, nil);
	- 	if (!suspended)
	- 		drawpiece();
	- 	drawboard();
	- 	flushimage(display, 1);
	- }
	- 
	- void
	- pause(int t)
	- {
	- 	int s;
	- 	Alt alts[NALT+1];
	- 
	- 	alts[TIMER].c = timerc;
	- 	alts[TIMER].v = nil;
	- 	alts[TIMER].op = CHANRCV;
	- 	alts[SUSPEND].c = suspc;
	- 	alts[SUSPEND].v = &s;
	- 	alts[SUSPEND].op = CHANRCV;
	- 	alts[RESHAPE].c = mousectl->resizec;
	- 	alts[RESHAPE].v = nil;
	- 	alts[RESHAPE].op = CHANRCV;
	- 	// avoid hanging up those writing ong mousec and kbdc
	- 	// so just accept it all and keep mouse up-to-date
	- 	alts[MOUSE].c = mousec;
	- 	alts[MOUSE].v = &mouse;
	- 	alts[MOUSE].op = CHANRCV;
	- 	alts[KBD].c = kbdc;
	- 	alts[KBD].v = nil;
	- 	alts[KBD].op = CHANRCV;
	- 	alts[NALT].op = CHANEND;
	- 
	- 	flushimage(display, 1);
	- 	for(;;)
	- 		switch(alt(alts)){
	- 		case SUSPEND:
	- 			if (!suspended && s) {
	- 				suspend(1);
	- 			} else if (suspended && !s) {
	- 				suspend(0);
	- 				lastmx = warp(mouse.xy, lastmx);
	- 			}
	- 			break;
	- 		case TIMER:
	- 			if(suspended)
	- 				break;
	- 			if((t -= tsleep) < 0)
	- 				return;
	- 			break;
	- 		case RESHAPE:
	- 			redraw(1);
	- 			break;		
	- 		}
	- }
	- 
	- int
	- horiz(void)
	- {
	- 	int lev[N];
	- 	int i, j, h;
	- 	Rectangle r;
	- 
	- 	h = 0;
	- 	for(i=0; i<NY; i++){
	- 		for(j=0; board[i][j]; j++)
	- 			if(j == NX-1){
	- 				lev[h++] = i;
	- 				break;
	- 			}
	- 	}
	- 	if(h == 0)
	- 		return 0;
	- 	r = rboard;
	- 	newscreen = 0;
	- 	for(j=0; j<h; j++){
	- 		r.min.y = rboard.min.y + lev[j]*pcsz;
	- 		r.max.y = r.min.y + pcsz;
	- 		draw(screen, r, display->white, whitemask, ZP);
	- 		flushimage(display, 1);
	- 	}
	- 	for(i=0; i<3; i++){
	- 		pause(250);
	- 		if(newscreen){
	- 			drawboard();
	- 			break;
	- 		}
	- 		for(j=0; j<h; j++){
	- 			r.min.y = rboard.min.y + lev[j]*pcsz;
	- 			r.max.y = r.min.y + pcsz;
	- 			draw(screen, r, display->white, whitemask, ZP);
	- 		}
	- 		flushimage(display, 1);
	- 	}
	- 	r = rboard;
	- 	for(j=0; j<h; j++){
	- 		i = NY - lev[j] - 1;
	- 		score(250+10*i*i);
	- 		r.min.y = rboard.min.y;
	- 		r.max.y = rboard.min.y+lev[j]*pcsz;
	- 		draw(screen, rectaddpt(r, Pt(0,pcsz)), screen, nil, r.min);
	- 		r.max.y = rboard.min.y+pcsz;
	- 		draw(screen, r, display->white, nil, ZP);
	- 		memcpy(&board[1][0], &board[0][0], NX*lev[j]);
	- 		memset(&board[0][0], 0, NX);
	- 	}
	- 	flushimage(display, 1);
	- 	return 1;
	- }
	- 
	- void
	- mright(void)
	- {
	- 	if(!collide(Pt(pos.x+pcsz, pos.y), piece))
	- 	if(!collide(Pt(pos.x+pcsz, pos.y+pcsz-DY), piece)){
	- 		undrawpiece();
	- 		pos.x += pcsz;
	- 		drawpiece();
	- 		flushimage(display, 1);
	- 	}
	- }
	- 
	- void
	- mleft(void)
	- {
	- 	if(!collide(Pt(pos.x-pcsz, pos.y), piece))
	- 	if(!collide(Pt(pos.x-pcsz, pos.y+pcsz-DY), piece)){
	- 		undrawpiece();
	- 		pos.x -= pcsz;
	- 		drawpiece();
	- 		flushimage(display, 1);
	- 	}
	- }
	- 
	- void
	- rright(void)
	- {
	- 	if(canfit(rotr(piece))){
	- 		setpiece(rotr(piece));
	- 		drawpiece();
	- 		flushimage(display, 1);
	- 	}
	- }
	- 
	- void
	- rleft(void)
	- {
	- 	if(canfit(rotl(piece))){
	- 		setpiece(rotl(piece));
	- 		drawpiece();
	- 		flushimage(display, 1);
	- 	}
	- }
	- 
	- int fusst = 0;
	- int
	- drop(int f)
	- {
	- 	if(f){
	- 		score(5L*(rboard.max.y-pos.y)/pcsz);
	- 		do; while(movepiece());
	- 	}
	- 	fusst = 0;
	- 	rest();
	- 	if(pos.y==rboard.min.y && !horiz())
	- 		return 1;
	- 	horiz();
	- 	setpiece(0);
	- 	pause(1500);
	- 	choosepiece();
	- 	lastmx = warp(mouse.xy, lastmx);
	- 	return 0;
	- }
	- 
	- int
	- play(void)
	- {
	- 	int i;
	- 	Mouse om;
	- 	int s;
	- 	Rune r;
	- 	Alt alts[NALT+1];
	- 
	- 	alts[TIMER].c = timerc;
	- 	alts[TIMER].v = nil;
	- 	alts[TIMER].op = CHANRCV;
	- 	alts[MOUSE].c = mousec;
	- 	alts[MOUSE].v = &mouse;
	- 	alts[MOUSE].op = CHANRCV;
	- 	alts[SUSPEND].c = suspc;
	- 	alts[SUSPEND].v = &s;
	- 	alts[SUSPEND].op = CHANRCV;
	- 	alts[RESHAPE].c = mousectl->resizec;
	- 	alts[RESHAPE].v = nil;
	- 	alts[RESHAPE].op = CHANRCV;
	- 	alts[KBD].c = kbdc;
	- 	alts[KBD].v = &r;
	- 	alts[KBD].op = CHANRCV;
	- 	alts[NALT].op = CHANEND;
	- 
	- 	dt = 64;
	- 	lastmx = -1;
	- 	lastmx = movemouse();
	- 	choosepiece();
	- 	lastmx = warp(mouse.xy, lastmx);
	- 	for(;;)
	- 	switch(alt(alts)){
	- 	case MOUSE:
	- 		if(suspended) {
	- 			om = mouse;
	- 			break;
	- 		}
	- 		if(lastmx < 0)
	- 			lastmx = mouse.xy.x;
	- 		if(mouse.xy.x > lastmx+DMOUSE){
	- 			mright();
	- 			lastmx = mouse.xy.x;
	- 		}
	- 		if(mouse.xy.x < lastmx-DMOUSE){
	- 			mleft();
	- 			lastmx = mouse.xy.x;
	- 		}
	- 		if(mouse.buttons&1 && !(om.buttons&1))
	- 			rleft();
	- 		if(mouse.buttons&2 && !(om.buttons&2))
	- 			if(drop(1))
	- 				return 1;
	- 		if(mouse.buttons&4 && !(om.buttons&4))
	- 			rright();
	- 		om = mouse;
	- 		break;
	- 	case SUSPEND:
	- 		if (!suspended && s)
	- 			suspend(1);
	- 		else
	- 		if (suspended && !s) {
	- 			suspend(0);
	- 			lastmx = warp(mouse.xy, lastmx);
	- 		}
	- 		break;
	- 	case RESHAPE:
	- 		redraw(1);
	- 		break;		
	- 	case KBD:
	- 		if(suspended)
	- 			break;
	- 		switch(r){
	- 		case 'f':
	- 		case ';':
	- 			mright();
	- 			break;
	- 		case 'a':
	- 		case 'j':
	- 			mleft();
	- 			break;
	- 		case 'd':
	- 		case 'l':
	- 			rright();
	- 			break;
	- 		case 's':
	- 		case 'k':
	- 			rleft();
	- 			break;
	- 		case ' ':
	- 			if(drop(1))
	- 				return 1;
	- 			break;
	- 		}
	- 		break;
	- 	case TIMER:
	- 		if(suspended)
	- 			break;
	- 		dt -= tsleep;
	- 		if(dt < 0){
	- 			i = 1;
	- 			dt = 16 * (points+nrand(10000)-5000) / 10000;
	- 			if(dt >= 32){
	- 				i += (dt-32)/16;
	- 				dt = 32;
	- 			}
	- 			dt = 52-dt;
	- 			while(i-- > 0)
	- 				if(movepiece()==0 && ++fusst==40){
	- 					if(drop(0))
	- 						return 1;
	- 					break;
	- 				}
	- 		}
	- 		break;
	- 	}
	- 	return 0;		/* not reached */
	- }
	- 
	- void
	- setparms(void)
	- {
	- 	char buf[32];
	- 	int fd, n;
	- 
	- 	tsleep = 50;
	- 	fd = open("/dev/hz", OREAD);
	- 	if(fd < 0)
	- 		return;
	- 	n = read(fd, buf, sizeof buf - 1);
	- 	close(fd);
	- 	if(n < 0)
	- 		return;
	- 	buf[n] = '\0';
	- 	tsleep = strtoul(buf, 0, 10);
	- 	tsleep = (1000 + tsleep - 1) / tsleep;
	- }
	- 
	- void
	- timerproc(void *v)
	- {
	- 	Channel *c;
	- 	void **arg;
	- 
	- 	arg = v;
	- 	c = (Channel*)arg;
	- 
	- 	for(;;){
	- 		sleep(tsleep);
	- 		send(c, nil);
	- 	}
	- }
	- 
	- void
	- suspproc(void *)
	- {
	- 	Mouse mouse;
	- 	Point lastm;
	- 	Rune r;
	- 	int s;
	- 	Alt alts[NALT+1];
	- 
	- 	alts[TIMER].op = CHANNOP;
	- 	alts[MOUSE].c = mousectl->c;
	- 	alts[MOUSE].v = &mouse;
	- 	alts[MOUSE].op = CHANRCV;
	- 	alts[SUSPEND].op = CHANNOP;
	- 	alts[RESHAPE].op = CHANNOP;
	- 	alts[KBD].c = kbdctl->c;
	- 	alts[KBD].v = &r;
	- 	alts[KBD].op = CHANRCV;
	- 	alts[NALT].op = CHANEND;
	- 
	- 	s = 0;
	- 	lastm = Pt(-1,-1);
	- 	for(;;)
	- 		switch(alt(alts)){
	- 		case MOUSE:
	- 			send(mousec, &mouse);
	- 			if(lastm.x < 0 || lastm.y < 0)
	- 				lastm = mouse.xy;
	- 			if(s && ptinrect(mouse.xy, rboard) && !ptinrect(lastm, rboard)){
	- 				s = 0;
	- 				send(suspc, &s);
	- 			} else
	- 			if(!s && !ptinrect(mouse.xy,rboard)){
	- 				s = 1;
	- 				send(suspc, &s);
	- 			}
	- 			lastm = mouse.xy;
	- 			break;
	- 		case KBD:
	- 			switch(r){
	- 			case 'q':
	- 			case 'Q':
	- 			case 0x04:
	- 			case 0x7F:
	- 				threadexitsall(nil);
	- 			default:
	- 				if(s) {
	- 					s = 0;
	- 					send(suspc, &s);
	- 				} else
	- 					switch(r){
	- 					case 'z':
	- 					case 'Z':
	- 					case 'p':
	- 					case 'P':
	- 					case 0x1B:
	- 						s = 1;
	- 						send(suspc, &s);
	- 						break;
	- 					default:
	- 						send(kbdc, &r);
	- 					}
	- 				break;
	- 			}
	- 		}
	- }
	- 
	- void
	- redraw(int new)
	- {
	- 	Rectangle r;
	- 	long dx, dy;
	- 
	- 	if(new && getwindow(display, Refmesg) < 0)
	- 		sysfatal("can't reattach to window");
	- 	r = screen->r;
	- 	pos.x = (pos.x - rboard.min.x) / pcsz;
	- 	pos.y = (pos.y - rboard.min.y) / pcsz;
	- 	dx = r.max.x - r.min.x;
	- 	dy = r.max.y - r.min.y - 2*32;
	- 	DY = dx / NX;
	- 	if(DY > dy / NY)
	- 		DY = dy / NY;
	- 	DY /= 8;
	- 	if(DY > 4)
	- 		DY = 4;
	- 	pcsz = DY*8;
	- 	DMOUSE = pcsz/3;
	- 	if(pcsz < 8)
	- 		sysfatal("screen too small: %d", pcsz);
	- 	rboard = screen->r;
	- 	rboard.min.x += (dx-pcsz*NX)/2;
	- 	rboard.min.y += (dy-pcsz*NY)/2+32;
	- 	rboard.max.x = rboard.min.x+NX*pcsz;
	- 	rboard.max.y = rboard.min.y+NY*pcsz;
	- 	pscore.x = rboard.min.x+8;
	- 	pscore.y = rboard.min.y-32;
	- 	scoresz = stringsize(font, "000000");
	- 	pos.x = pos.x*pcsz + rboard.min.x;
	- 	pos.y = pos.y*pcsz + rboard.min.y;
	- 	if(bb){
	- 		freeimage(bb);
	- 		freeimage(bbmask);
	- 		freeimage(bb2);
	- 		freeimage(bb2mask);
	- 	}
	- 	bb = allocimage(display, Rect(0,0,N*pcsz,N*pcsz), screen->chan, 0, 0);
	- 	bbmask = allocimage(display, Rect(0,0,N*pcsz,N*pcsz), GREY1, 0, 0);
	- 	bb2 = allocimage(display, Rect(0,0,N*pcsz,N*pcsz+DY), screen->chan, 0, 0);
	- 	bb2mask = allocimage(display, bb2->r, GREY1, 0, 0);
	- 	if(bb==0 || bbmask==0 || bb2==0 || bb2mask==0)
	- 		sysfatal("allocimage fail (bb)");
	- 	draw(screen, screen->r, display->white, nil, ZP);
	- 	drawboard();
	- 	setpiece(piece);
	- 	if(piece)
	- 		drawpiece();
	- 	lastmx = movemouse();
	- 	newscreen = 1;
	- 	flushimage(display, 1);
	- }
	- 
	- void
	- threadmain(int argc, char *argv[])
	- {
	- 	Image *tb;
	- 	char buf[200];
	- 	int i, scores;
	- 	long starttime, endtime;
	- 
	- 	ARGBEGIN{
	- 	}ARGEND
	- 
	- 	suspended = 0;
	- 	setparms();
	- 	snprint(buf, sizeof(buf), "%ds", N);
	- 	initdraw(0, 0, buf);
	- 	mousectl = initmouse(nil, display->image);	/* BUG? */
	- 	if(mousectl == nil)
	- 		sysfatal("[45]s: mouse init failed: %r");
	- 	kbdctl = initkeyboard(nil);	/* BUG? */
	- 	if(kbdctl == nil)
	- 		sysfatal("[45]s: keyboard init failed: %r");
	- 	starttime = time(0);
	- 	srand(starttime);
	- 	snprint(buf, sizeof(buf), "/sys/games/lib/%dscores", N);
	- 	scores = open(buf, OWRITE);
	- 	if(scores < 0)
	- 		sysfatal("can't open %s: %r", buf);
	- 	tb = 0;
	- 	if(screen->depth < 3){
	- 		tb = allocimage(display, Rect(0,0,16,16), 0, 1, -1);
	- 		if(tb == 0)
	- 			sysfatal("allocimage fail (tb)");
	- 	}
	- 	for(i = 0; i<NCOL; i++){
	- 		tx[i] = allocimage(display, Rect(0, 0, 16, 16), screen->chan, 1, txpix[i]);
	- 		if(tx[i] == 0)
	- 			sysfatal("allocimage fail (tx)");
	- 		if(screen->depth < 3){
	- 			loadimage(tb, tb->r, txbits[i], 32);
	- 			draw(tx[i], tx[i]->r, tb, nil, ZP);
	- 		}
	- 	}
	- 	if(tb != 0)
	- 		freeimage(tb);
	- 
	- 	whitemask = allocimage(display, Rect(0,0,1,1), CMAP8, 1, setalpha(DWhite, 0x7F));
	- 	if(whitemask==0)
	- 		sysfatal("allocimage fail (whitemask)");
	- 
	- 	threadsetname("4s-5s");
	- 	timerc= chancreate(sizeof(int), 0);
	- 	proccreate(timerproc, timerc, 1024);
	- 	suspc= chancreate(sizeof(int), 0);
	- 	mousec= chancreate(sizeof(Mouse), 0);
	- 	kbdc= chancreate(sizeof(Rune), 0);
	- 	threadcreate(suspproc, nil, 1024);
	- 	points = 0;
	- 	memset(board, 0, sizeof(board));
	- 	redraw(0);
	- 	if(play()){
	- 		endtime = time(0);
	- 		fprint(scores, "%ld\t%s\t%lud\t%ld\n",
	- 			points, getuser(), starttime, endtime-starttime);
	- 	}
	- 	threadexitsall(nil);
	- 	exits(0);
	- }
 [sys] --rwxrwxr-x M 733409 sys sys 177871 Oct  2 23:11 386/bin/games/4s
 [sys] --rwxrwxr-x M 733409 sys sys 180159 Oct  2 23:11 386/bin/games/5s
	/sys/src/games/xs.c:canfit
	/sys/src/games/xs.c:choosepiece
	/sys/src/games/xs.c:collide
	/sys/src/games/xs.c:collider
	/sys/src/games/xs.c:drawboard
	/sys/src/games/xs.c:drawpiece
	/sys/src/games/xs.c:drawsq
	/sys/src/games/xs.c:drop
	/sys/src/games/xs.c:horiz
	/sys/src/games/xs.c:mleft
	/sys/src/games/xs.c:movemouse
	/sys/src/games/xs.c:movepiece
	/sys/src/games/xs.c:mright
	/sys/src/games/xs.c:pause
	/sys/src/games/xs.c:play
	/sys/src/games/xs.c:redraw
	/sys/src/games/xs.c:rest
	/sys/src/games/xs.c:rleft
	/sys/src/games/xs.c:rotl
	/sys/src/games/xs.c:rotr
	/sys/src/games/xs.c:rright
	/sys/src/games/xs.c:score
	/sys/src/games/xs.c:setparms
	/sys/src/games/xs.c:setpiece
	/sys/src/games/xs.c:suspend
	/sys/src/games/xs.c:suspproc
	/sys/src/games/xs.c:threadmain
	/sys/src/games/xs.c:timerproc
	/sys/src/games/xs.c:undrawpiece
	/sys/src/games/xs.c:usage
	/sys/src/games/xs.c:warp
	/sys/src/games/xs.h:canfit
	/sys/src/games/xs.h:choosepiece
	/sys/src/games/xs.h:collide
	/sys/src/games/xs.h:collider
	/sys/src/games/xs.h:drawboard
	/sys/src/games/xs.h:drawpiece
	/sys/src/games/xs.h:drawsq
	/sys/src/games/xs.h:drop
	/sys/src/games/xs.h:horiz
	/sys/src/games/xs.h:mleft
	/sys/src/games/xs.h:movemouse
	/sys/src/games/xs.h:movepiece
	/sys/src/games/xs.h:mright
	/sys/src/games/xs.h:pause
	/sys/src/games/xs.h:play
	/sys/src/games/xs.h:redraw
	/sys/src/games/xs.h:rest
	/sys/src/games/xs.h:rleft
	/sys/src/games/xs.h:rotl
	/sys/src/games/xs.h:rotr
	/sys/src/games/xs.h:rright
	/sys/src/games/xs.h:score
	/sys/src/games/xs.h:setparms
	/sys/src/games/xs.h:setpiece
	/sys/src/games/xs.h:suspend
	/sys/src/games/xs.h:suspproc
	/sys/src/games/xs.h:threadmain
	/sys/src/games/xs.h:timerproc
	/sys/src/games/xs.h:undrawpiece
	/sys/src/games/xs.h:warp
	/sys/src/libc/fmt/fmt.c:_fmtinstall


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