lcc is the retargetable ANSI C compiler described in the book

`A Retargetable C Compiler: Design and Implementation'
(Addison-Wesley, 1995, ISBN 0-8053-1670-1).

lcc is a production compiler with a hand crafted lexical analyzer and a
hand-coded recursive decent parser.  The lexer and parser code is well
written and very easy to read (and learn from :-)).

lcc compiles much faster than FreeBSD's stock [gcc] compiler.  However, it
does not under stand FreeBSD's "long long" data type.

Contributions by:	Soren Schmidt

5 files changed, 1345 insertions, 0 deletions

diff --git a/lang/lcc/files/FreeBSD.c.in b/lang/lcc/files/FreeBSD.c.in
new file mode 100644
index 000000000000..7bccd0b5c2dc
--- /dev/null
+++ b/lang/lcc/files/FreeBSD.c.in
@@ -0,0 +1,78 @@
+/*
+ * freebsd.c -- lcc driver definitions for FreeBSD-2.2.x.
+ *
+ */
+
+#include <string.h>
+
+static char rcsid[] = "$Id$";
+
+#ifndef LCCDIR
+#define LCCDIR "%%PREFIX%%/%%LCCDESTDIR%%/"
+#endif
+
+/* char *stock_cpp[] = {  */
+char *cpp[] = { 
+	"/usr/libexec/cpp",
+	"-undef", "-nostdinc", "-lang-c", "-U__GNUC__",
+	"-D_POSIX_SOURCE", "-D__STDC__", "-D__STRICT_ANSI__",
+	"-Dunix", "-Di386", "-DFreeBSD",
+	"-D__unix__", "-D__i386__", "-D__FreeBSD__",
+	"$1", "$2", "$3", 0};
+
+char *lcc_ritchey_cpp[] = {
+	LCCDIR "cpp",
+	"-D__STDC__=1", "-D__STRICT_ANSI__",
+	"-D_POSIX_SOURCE",
+	"-U__GNUC__",
+	"-Dunix", "-D__unix__",
+	"-DFreeBSD", "-D__FreeBSD__",
+	"-Di386", "-D__i386__",
+	"-Dx86", "-D__x86__",
+	"$1", "$2", "$3", 0
+};
+
+/* char **cpp = stock_cpp; */
+
+char *include[] = {
+	"-I" LCCDIR "include", 
+	"-I%%PREFIX%%/include/%%VERSION%%",
+	"-I/usr/include", 
+	"-I%%PREFIX%%/include", 
+	0
+};
+
+char *com[] = {
+	LCCDIR "rcc",
+	"-target=i386-FreeBSD",
+	"$1", "$2", "$3", 0
+};
+
+char *as[] = {"/usr/bin/as", "-o", "$3", "$1", "$2", 0};
+
+char *ld[] = {"/usr/bin/ld", "", "-estart", "-dc", "-dp", "-o", "$3",
+	"/usr/lib/crt0.o", "$1", "$2", "",
+	"-lm", "", "-lc", "", "",
+#if 0
+	"-lgcc",
+#endif
+	0};
+
+int 
+option(arg)
+	char *arg;
+{
+	if (strcmp(arg, "-g") == 0) {}
+	else if (strcmp(arg, "-p") == 0) {
+		ld[8] = "/usr/lib/gcrt0.o";
+		ld[14] = "-lc_p";
+	} 
+	else if (strcmp(arg, "-b") == 0 &&
+			access(LCCDIR "bbexit.o", 4) == 0) {
+		ld[11] = LCCDIR "bbexit.o";
+	} else {
+		return 0;
+	}
+
+	return 1;
+}
diff --git a/lang/lcc/files/FreeBSD.md b/lang/lcc/files/FreeBSD.md
new file mode 100644
index 000000000000..7a8d86289105
--- /dev/null
+++ b/lang/lcc/files/FreeBSD.md
@@ -0,0 +1,1200 @@
+%{
+#define FREEBSDMD_RCSID	"$Id$"
+
+enum { EAX=0, ECX=1, EDX=2, EBX=3, ESI=6, EDI=7 };
+#include "c.h"
+#define NODEPTR_TYPE Node
+#define OP_LABEL(p) ((p)->op)
+#define LEFT_CHILD(p) ((p)->kids[0])
+#define RIGHT_CHILD(p) ((p)->kids[1])
+#define STATE_LABEL(p) ((p)->x.state)
+static void address     ARGS((Symbol, Symbol, int));
+static void blkfetch    ARGS((int, int, int, int));
+static void blkloop     ARGS((int, int, int, int, int, int[]));
+static void blkstore    ARGS((int, int, int, int));
+static int  ckstack     ARGS((Node, int));
+static void defaddress  ARGS((Symbol));
+static void defconst    ARGS((int, Value));
+static void defstring   ARGS((int, char *));
+static void defsymbol   ARGS((Symbol));
+static void doarg       ARGS((Node));
+static void emit0       ARGS((Node));
+static void emit2       ARGS((Node));
+static void export      ARGS((Symbol));
+static void clobber     ARGS((Node));
+static void function    ARGS((Symbol, Symbol [], Symbol [], int));
+static void global      ARGS((Symbol));
+static void import      ARGS((Symbol));
+static void local       ARGS((Symbol));
+static void progbeg     ARGS((int, char **));
+static void progend     ARGS((void));
+static void segment     ARGS((int));
+static void space       ARGS((int));
+static void target      ARGS((Node));
+static int memop ARGS((Node));
+static int hasargs ARGS((Node));
+static int sametree ARGS((Node, Node));
+static Symbol charreg[32], shortreg[32], intreg[32];
+static Symbol fltreg[32];
+
+static int cseg;
+
+static Symbol quo, rem;
+
+%}
+%start stmt
+%term ADDD=306 ADDF=305 ADDI=309 ADDP=311 ADDU=310
+%term ADDRFP=279
+%term ADDRGP=263
+%term ADDRLP=295
+%term ARGB=41 ARGD=34 ARGF=33 ARGI=37 ARGP=39
+%term ASGNB=57 ASGNC=51 ASGND=50 ASGNF=49 ASGNI=53 ASGNP=55 ASGNS=52
+%term BANDU=390
+%term BCOMU=406
+%term BORU=422
+%term BXORU=438
+%term CALLB=217 CALLD=210 CALLF=209 CALLI=213 CALLV=216
+%term CNSTC=19 CNSTD=18 CNSTF=17 CNSTI=21 CNSTP=23 CNSTS=20 CNSTU=22
+%term CVCI=85 CVCU=86
+%term CVDF=97 CVDI=101
+%term CVFD=114
+%term CVIC=131 CVID=130 CVIS=132 CVIU=134
+%term CVPU=150
+%term CVSI=165 CVSU=166
+%term CVUC=179 CVUI=181 CVUP=183 CVUS=180
+%term DIVD=450 DIVF=449 DIVI=453 DIVU=454
+%term EQD=482 EQF=481 EQI=485
+%term GED=498 GEF=497 GEI=501 GEU=502
+%term GTD=514 GTF=513 GTI=517 GTU=518
+%term INDIRB=73 INDIRC=67 INDIRD=66 INDIRF=65 INDIRI=69 INDIRP=71 INDIRS=68
+%term JUMPV=584
+%term LABELV=600
+%term LED=530 LEF=529 LEI=533 LEU=534
+%term LOADB=233 LOADC=227 LOADD=226 LOADF=225 LOADI=229 LOADP=231 LOADS=228 LOADU=230
+%term LSHI=341 LSHU=342
+%term LTD=546 LTF=545 LTI=549 LTU=550
+%term MODI=357 MODU=358
+%term MULD=466 MULF=465 MULI=469 MULU=470
+%term NED=562 NEF=561 NEI=565
+%term NEGD=194 NEGF=193 NEGI=197
+%term RETD=242 RETF=241 RETI=245
+%term RSHI=373 RSHU=374
+%term SUBD=322 SUBF=321 SUBI=325 SUBP=327 SUBU=326
+%term VREGP=615
+%%
+
+reg: INDIRC(VREGP)	"# read register\n"
+reg: INDIRI(VREGP)	"# read register\n"
+reg: INDIRP(VREGP)	"# read register\n"
+reg: INDIRS(VREGP)	"# read register\n"
+freg: INDIRD(VREGP)	"# read register\n"
+freg: INDIRF(VREGP)	"# read register\n"
+stmt: ASGNC(VREGP,reg)	"# write register\n"
+stmt: ASGNI(VREGP,reg)	"# write register\n"
+stmt: ASGNP(VREGP,reg)	"# write register\n"
+stmt: ASGNS(VREGP,reg)	"# write register\n"
+stmt: ASGND(VREGP,freg)	"# write register\n"
+stmt: ASGNF(VREGP,freg)	"# write register\n"
+con: CNSTC	"$%a"
+con: CNSTI	"$%a"
+con: CNSTP	"$%a"
+con: CNSTS	"$%a"
+con: CNSTU	"$%a"
+stmt: reg	""
+stmt: freg	""
+reg: CVIU(reg)  "%0"  notarget(a)
+reg: CVPU(reg)  "%0"  notarget(a)
+reg: CVUI(reg)  "%0"  notarget(a)
+reg: CVUP(reg)  "%0"  notarget(a)
+
+acon: ADDRGP	"%a"
+acon: CNSTC	"%a"
+acon: CNSTI	"%a"
+acon: CNSTP	"%a"
+acon: CNSTS	"%a"
+acon: CNSTU	"%a"
+
+baseaddr: ADDRGP	"%a"
+base: reg   	    	"(%0)"
+base: ADDI(reg,acon)	"%1(%0)"
+base: ADDP(reg,acon)	"%1(%0)"
+base: ADDU(reg,acon)	"%1(%0)"
+base: ADDRFP		"%a(%%ebp)"
+base: ADDRLP		"%a(%%ebp)"
+
+con1: CNSTI	"1"	range(a, 1, 1)
+con1: CNSTU	"1"	range(a, 1, 1)
+
+icon: CNSTI	"2"	range(a, 1, 1)
+icon: CNSTU	"2"	range(a, 1, 1)
+icon: CNSTI	"4"	range(a, 2, 2)
+icon: CNSTU	"4"	range(a, 2, 2)
+icon: CNSTI	"8"	range(a, 3, 3)
+icon: CNSTU	"8"	range(a, 3, 3)
+
+index: reg              "%0"
+index: LSHI(reg,icon)	"%0,%1"
+index: LSHU(reg,icon)	"%0,%1"
+
+addr: base			"%0" 1
+addr: baseaddr			"%0"
+addr: ADDI(index,baseaddr)	"%1(,%0)"
+addr: ADDI(reg,baseaddr)	"%1(%0)"
+addr: ADDI(index,reg)		"(%1,%0)"
+
+addr: ADDP(index,baseaddr)	"%1(,%0)"
+addr: ADDP(reg,baseaddr)	"%1(%0)"
+addr: ADDP(index,reg)		"(%1,%0)"
+addr: ADDU(index,baseaddr)	"%1(,%0)"
+addr: ADDU(reg,baseaddr)	"%1(%0)"
+addr: ADDU(index,reg)		"(%1,%0)"
+addr: index			"(,%0)"
+
+memb: INDIRC(addr)	"%0"
+memw: INDIRS(addr)	"%0"
+mem:  INDIRI(addr)	"%0"
+mem:  INDIRP(addr)	"%0"
+
+rc5: CNSTI	"$%a"	range(a, 0, 31)
+rc5: reg	"%%cl"
+
+rc: reg		"%0"
+rc: con		"%0"
+
+mr:   reg  "%0"
+mr:   mem  "%0"
+
+mrb:   reg  "%0"
+mrb:   memb  "%0"
+
+mrw:   reg  "%0"
+mrw:   memw  "%0"
+
+mrc: mem  "%0"  1
+mrc: memb  "%0"  1
+mrc: memw  "%0"  1
+mrc: rc   "%0"
+
+reg: addr		"\tleal\t%0,%c\n"			1
+reg: mr			"\tmovl\t%0,%c\n"			1
+reg: mrb		"\tmovb\t%0,%c\n"			1
+reg: mrw		"\tmovw\t%0,%c\n"			1
+reg: con		"\tmovl\t%0,%c\n"			1
+reg: LOADC(reg)		"\tmovb\t%0,%c\n"			move(a)
+reg: LOADI(reg)		"\tmovl\t%0,%c\n"			move(a)
+reg: LOADP(reg)		"\tmovl\t%0,%c\n"			move(a)
+reg: LOADS(reg)		"\tmovw\t%0,%c\n"			move(a)
+reg: LOADU(reg)		"\tmovl\t%0,%c\n"			move(a)
+reg: ADDI(reg,mrc)	"?\tmovl\t%0,%c\n\taddl\t%1,%c\n"	1
+reg: ADDP(reg,mrc)	"?\tmovl\t%0,%c\n\taddl\t%1,%c\n"	1
+reg: ADDU(reg,mrc)	"?\tmovl\t%0,%c\n\taddl\t%1,%c\n"	1
+reg: SUBI(reg,mrc)	"?\tmovl\t%0,%c\n\tsubl\t%1,%c\n"	1
+reg: SUBP(reg,mrc)	"?\tmovl\t%0,%c\n\tsubl\t%1,%c\n"	1
+reg: SUBU(reg,mrc)	"?\tmovl\t%0,%c\n\tsubl\t%1,%c\n"	1
+reg: BANDU(reg,mrc)	"?\tmovl\t%0,%c\n\tandl\t%1,%c\n"	1
+reg: BORU(reg,mrc)	"?\tmovl\t%0,%c\n\torl\t%1,%c\n"	1
+reg: BXORU(reg,mrc)	"?\tmovl\t%0,%c\n\txorl\t%1,%c\n"	1
+reg: LSHI(reg,rc5)	"?\tmovl\t%0,%c\n\tsall\t%1,%c\n"	2
+reg: LSHU(reg,rc5)	"?\tmovl\t%0,%c\n\tshll\t%1,%c\n"	2
+reg: RSHI(reg,rc5)	"?\tmovl\t%0,%c\n\tsarl\t%1,%c\n"	2
+reg: RSHU(reg,rc5)	"?\tmovl\t%0,%c\n\tshrl\t%1,%c\n"	2
+reg: BCOMU(reg)		"?\tmovl\t%0,%c\n\tnotl\t%c\n"		2
+reg: NEGI(reg)		"?\tmovl\t%0,%c\n\tnegl\t%c\n"		2
+
+stmt: ASGNI(addr,ADDI(mem,con1)) "\tincl\t%1\n"		memop(a)
+stmt: ASGNI(addr,ADDU(mem,con1)) "\tincl\t%1\n"		memop(a)
+stmt: ASGNP(addr,ADDP(mem,con1)) "\tincl\t%1\n"		memop(a)
+stmt: ASGNI(addr,SUBI(mem,con1)) "\tdecl\t%1\n"		memop(a)
+stmt: ASGNI(addr,SUBU(mem,con1)) "\tdecl\t%1\n"		memop(a)
+stmt: ASGNP(addr,SUBP(mem,con1))"\tdecl\t%1\n"		memop(a)
+stmt: ASGNI(addr,ADDI(mem,rc))	"\taddl\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,ADDU(mem,rc))	"\taddl\t%2,%1\n" 	memop(a)
+stmt: ASGNI(addr,SUBI(mem,rc))	"\tsubl\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,SUBU(mem,rc))	"\tsubl\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,BANDU(mem,rc))	"\tandl\t%2,%1\n"  	memop(a)
+stmt: ASGNI(addr,BORU(mem,rc))	"\torl\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,BXORU(mem,rc))	"\txorl\t%2,%1\n" 	memop(a)
+stmt: ASGNI(addr,BCOMU(mem))	"\tnotl\t%1\n"		memop(a)
+stmt: ASGNI(addr,NEGI(mem))	"\tnegl\t%1\n"  	memop(a)
+stmt: ASGNI(addr,LSHI(mem,rc5))	"\tsall\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,LSHU(mem,rc5))	"\tshll\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,RSHI(mem,rc5))	"\tsarl\t%2,%1\n"	memop(a)
+stmt: ASGNI(addr,RSHU(mem,rc5))	"\tshrl\t%2,%1\n"	memop(a)
+
+reg: MULI(reg,mrc)	"?\tmovl\t%0,%c\n\timull\t%1,%c\n"  14
+reg: MULI(con,mr)	"\timul\t%0,%1,%c\n"	13
+reg: MULU(reg,mr)	"\tmull\t%1\n"		13
+reg: DIVU(reg,reg)	"\txorl\t%%edx,%%edx\n\tdivl\t%1\n"
+reg: MODU(reg,reg)	"\txorl\t%%edx,%%edx\n\tdivl\t%1\n"
+reg: DIVI(reg,reg)	"\tcdq\n\tidivl\t%1\n"
+reg: MODI(reg,reg)	"\tcdq\n\tidivl\t%1\n"
+reg: CVIU(reg)		"\tmovl\t%0,%c\n"	move(a)
+reg: CVPU(reg)		"\tmovl\t%0,%c\n"	move(a)
+reg: CVUI(reg)		"\tmovl\t%0,%c\n"	move(a)
+reg: CVUP(reg)		"\tmovl\t%0,%c\n"	move(a)
+reg: CVCI(INDIRC(addr))	"\tmovsbl\t%0,%c\n"	3
+reg: CVCU(INDIRC(addr))	"\tmovzbl\t%0,%c\n"	3
+reg: CVSI(INDIRS(addr))	"\tmovswl\t%0,%c\n"	3
+reg: CVSU(INDIRS(addr))	"\tmovzwl\t%0,%c\n"	3
+
+reg: CVCI(reg)  "# extend\n"  3
+reg: CVCU(reg)  "# extend\n"  3
+reg: CVSI(reg)  "# extend\n"  3
+reg: CVSU(reg)  "# extend\n"  3
+reg: CVIC(reg)  "# truncate\n"  1
+reg: CVIS(reg)  "# truncate\n"  1
+reg: CVUC(reg)  "# truncate\n"  1
+reg: CVUS(reg)  "# truncate\n"  1
+
+mrca: mem  "%0"
+mrca: rc   "%0"
+mrca: ADDRGP "$%a"
+
+stmt: ASGNC(addr,rc)	"\tmovb\t%1,%0\n"	1
+stmt: ASGNI(addr,rc)	"\tmovl\t%1,%0\n"	1
+stmt: ASGNP(addr,rc)	"\tmovl\t%1,%0\n"	1
+stmt: ASGNS(addr,rc)	"\tmovw\t%1,%0\n"	1
+stmt: ASGNB(reg,INDIRB(reg)) "\tmovl\t$%a,%%ecx\n\trep\n\tmovsb\n"
+stmt: ARGI(mrca)	"\tpushl\t%0\n"  1
+stmt: ARGP(mrca)	"\tpushl\t%0\n"  1
+stmt: ARGB(INDIRB(reg)) "\tsubl\t$%a,%%esp\n\tmovl\t%%esp,%%edi\n\tmovl\t$%a,%%ecx\n\trep\n\tmovsb\n"
+
+memf: INDIRD(addr)		"l\t%0"
+memf: INDIRF(addr)		"s\t%0"
+memf: CVFD(INDIRF(addr))	"s\t%0"
+freg: memf			"\tfld%0\n"		3
+stmt: ASGND(addr,freg)		"\tfstpl\t%0\n"  7
+stmt: ASGNF(addr,freg)		"\tfstps\t%0\n"  7
+stmt: ASGNF(addr,CVDF(freg))	"\tfstps\t%0\n"  7
+stmt: ARGD(freg)		"\tsubl\t$8,%%esp\n\tfstpl\t(%%esp)\n"
+stmt: ARGF(freg)		"\tsubl\t$4,%%esp\n\tfstps\t(%%esp)\n"
+freg: NEGD(freg)		"\tfchs\n"
+freg: NEGF(freg)		"\tfchs\n"
+
+flt: memf	"%0"
+flt: freg	"p\t%%st,%%st(1)"
+
+freg: ADDD(freg,flt)	"\tfadd%1\n"
+freg: ADDF(freg,flt)	"\tfadd%1\n"
+freg: DIVD(freg,memf)	"\tfdiv%1\n"
+freg: DIVD(freg,freg)	"\tfdivrp\t%%st,%%st(1)\n"
+freg: DIVF(freg,memf)	"\tfdiv%1\n"
+freg: DIVF(freg,freg)	"\tfdivrp\t%%st,%%st(1)\n"
+freg: MULD(freg,flt)	"\tfmul%1\n"
+freg: MULF(freg,flt)	"\tfmul%1\n"
+freg: SUBD(freg,memf)	"\tfsub%1\n"
+freg: SUBD(freg,freg)	"\tfsubrp\t%%st,%%st(1)\n"
+freg: SUBF(freg,memf)	"\tfsub%1\n"
+freg: SUBF(freg,freg)	"\tfsubrp\t%%st,%%st(1)\n"
+freg: CVFD(freg)  "# CVFD\n"
+freg: CVDF(freg)  "\tsub\t$4,%%esp ; fstps (%%esp) ; flds (%%esp) ; addl $4,%%esp\n"  12
+
+stmt: ASGNI(addr,CVDI(freg))  "\tfistpl\t%0\n"  29
+reg: CVDI(freg)  "\tsubl\t$4,%%esp\n\tfistpl\t0(%%esp)\n\tpopl\t%c\n" 31
+
+freg: CVID(INDIRI(addr))  "\tfildl\t%0\n"  10
+freg: CVID(reg)  "\tpushl\t%0\n\tfildl\t(%%esp)\n\taddl\t$4,%%esp\n"  12
+
+addrj: ADDRGP  "%a"
+addrj: reg     "*%0"  2
+addrj: mem     "*%0"  2
+
+addrjmp: ADDRGP  "%a"
+addrjmp: reg     "*%0"  2
+addrjmp: mem     "*%0"  2
+
+stmt: LABELV		"%a:\n"
+stmt: JUMPV(addrjmp)	"\tjmp\t%0\n"  3
+stmt: EQI(mem,rc)	"\tcmpl\t%1,%0\n\tje\t%a\n"   5
+stmt: GEI(mem,rc)	"\tcmpl\t%1,%0\n\tjge\t%a\n"  5
+stmt: GTI(mem,rc)	"\tcmpl\t%1,%0\n\tjg\t%a\n"   5
+stmt: LEI(mem,rc)	"\tcmpl\t%1,%0\n\tjle\t%a\n"  5
+stmt: LTI(mem,rc)	"\tcmpl\t%1,%0\n\tjl\t%a\n"   5
+stmt: NEI(mem,rc)	"\tcmpl\t%1,%0\n\tjne\t%a\n"  5
+stmt: GEU(mem,rc)	"\tcmpl\t%1,%0\n\tjae\t%a\n"  5
+stmt: GTU(mem,rc)	"\tcmpl\t%1,%0\n\tja \t%a\n"  5
+stmt: LEU(mem,rc)	"\tcmpl\t%1,%0\n\tjbe\t%a\n"  5
+stmt: LTU(mem,rc)	"\tcmpl\t%1,%0\n\tjb \t%a\n"  5
+stmt: EQI(reg,mrc)	"\tcmpl\t%1,%0\n\tje\t%a\n"   4
+stmt: GEI(reg,mrc)	"\tcmpl\t%1,%0\n\tjge\t%a\n"  4
+stmt: GTI(reg,mrc)	"\tcmpl\t%1,%0\n\tjg\t%a\n"   4
+stmt: LEI(reg,mrc)	"\tcmpl\t%1,%0\n\tjle\t%a\n"  4
+stmt: LTI(reg,mrc)	"\tcmpl\t%1,%0\n\tjl\t%a\n"   4
+stmt: NEI(reg,mrc)	"\tcmpl\t%1,%0\n\tjne\t%a\n"  4
+
+stmt: GEU(reg,mrc)	"\tcmpl\t%1,%0\n\tjae\t%a\n"  4
+stmt: GTU(reg,mrc)	"\tcmpl\t%1,%0\n\tja \t%a\n"  4
+stmt: LEU(reg,mrc)	"\tcmpl\t%1,%0\n\tjbe\t%a\n"  4
+stmt: LTU(reg,mrc)	"\tcmpl\t%1,%0\n\tjb \t%a\n"  4
+
+cmpf: INDIRD(addr)		"l\t%0"
+cmpf: INDIRF(addr)		"s\t%0"
+cmpf: CVFD(INDIRF(addr))	"s\t%0"
+cmpf: freg	"p"
+
+stmt: EQD(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tje\t%a\n"
+stmt: GED(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjbe\t%a\n"
+stmt: GTD(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjb\t%a\n"
+stmt: LED(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjae\t%a\n"
+stmt: LTD(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tja\t%a\n"
+stmt: NED(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjne\t%a\n"
+
+stmt: EQF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tje\t%a\n"
+stmt: GEF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjbe\t%a\n"
+stmt: GTF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjb\t%a\n"
+stmt: LEF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjae\t%a\n"
+stmt: LTF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tja\t%a\n"
+stmt: NEF(cmpf,freg)	"\tfcomp%0 ; fstsw %%ax ; sahf\n\tjne\t%a\n"
+
+reg:  CALLI(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n"	hasargs(a)
+reg:  CALLI(addrj)  "\tcall\t%0\n"			1
+
+stmt: CALLV(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n"	hasargs(a)
+stmt: CALLV(addrj)  "\tcall\t%0\n"			1
+
+freg: CALLF(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n"	hasargs(a)
+freg: CALLF(addrj)  "\tcall\t%0\n"			1
+
+stmt: CALLF(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n\tfstp\t%%st(0)\n"	hasargs(a)
+stmt: CALLF(addrj)  "\tcall\t%0\n\tfstp\t%%st(0)\n"			1
+
+freg: CALLD(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n"	hasargs(a)
+freg: CALLD(addrj)  "\tcall\t%0\n"			1
+
+stmt: CALLD(addrj)  "\tcall\t%0\n\taddl\t$%a,%%esp\n\tfstp\t%%st(0)\n"	hasargs(a)
+stmt: CALLD(addrj)  "\tcall\t%0\n\tfstp\t%%st(0)\n"			1
+
+stmt: RETI(reg)  "# ret\n"
+stmt: RETF(freg)  "# retf\n"
+stmt: RETD(freg)  "# retd\n"
+
+%%
+
+static void 
+progbeg(argc, argv)
+	char *argv[];
+{
+	int i;
+
+	{
+		union {
+			char c;
+			int i;
+		} u;
+		u.i = 0;
+		u.c = 1;
+		swap = (u.i == 1) != IR->little_endian;
+	}
+	parseflags(argc, argv);
+	intreg[EAX] = mkreg("%%eax", EAX, 1, IREG);
+	intreg[EDX] = mkreg("%%edx", EDX, 1, IREG);
+	intreg[ECX] = mkreg("%%ecx", ECX, 1, IREG);
+	intreg[EBX] = mkreg("%%ebx", EBX, 1, IREG);
+	intreg[ESI] = mkreg("%%esi", ESI, 1, IREG);
+	intreg[EDI] = mkreg("%%edi", EDI, 1, IREG);
+	shortreg[EAX] = mkreg("%%ax", EAX, 1, IREG);
+	shortreg[ECX] = mkreg("%%cx", ECX, 1, IREG);
+	shortreg[EDX] = mkreg("%%dx", EDX, 1, IREG);
+	shortreg[EBX] = mkreg("%%bx", EBX, 1, IREG);
+	shortreg[ESI] = mkreg("%%si", ESI, 1, IREG);
+	shortreg[EDI] = mkreg("%%di", EDI, 1, IREG);
+
+	charreg[EAX] = mkreg("%%al", EAX, 1, IREG);
+	charreg[ECX] = mkreg("%%cl", ECX, 1, IREG);
+	charreg[EDX] = mkreg("%%dl", EDX, 1, IREG);
+	charreg[EBX] = mkreg("%%bl", EBX, 1, IREG);
+	for (i = 0; i < 8; i++)
+		fltreg[i] = mkreg("%d", i, 0, FREG);
+	rmap[C] = mkwildcard(charreg);
+	rmap[S] = mkwildcard(shortreg);
+	rmap[P] = rmap[B] = rmap[U] = rmap[I] = mkwildcard(intreg);
+	rmap[F] = rmap[D] = mkwildcard(fltreg);
+	tmask[IREG] = (1 << EDI) | (1 << ESI) | (1 << EBX)
+		| (1 << EDX) | (1 << ECX) | (1 << EAX);
+	vmask[IREG] = 0;
+	tmask[FREG] = 0xff;
+	vmask[FREG] = 0;
+	print("\t.text\n");
+	cseg = 0;
+	quo = mkreg("%%eax", EAX, 1, IREG);
+	quo->x.regnode->mask |= 1<<EDX;
+	rem = mkreg("%%edx", EDX, 1, IREG);
+	rem->x.regnode->mask |= 1<<EAX;
+}
+
+static void 
+segment(n)
+{
+	if (n == cseg)
+		return;
+	cseg = n;
+	if (n == CODE)
+		print("\t.text\n");
+	else if (cseg == BSS)
+    	    	print("\t.bss\n");
+	else if (cseg == DATA || cseg == LIT)
+		print("\t.data\n");
+}
+
+static void 
+progend()
+{
+	segment(0);
+}
+static void target(p) Node p; {
+	assert(p);
+	switch (p->op) {
+	case RSHI: case RSHU: case LSHI: case LSHU:
+		if (generic(p->kids[1]->op) != CNST
+		&& !(   generic(p->kids[1]->op) == INDIR
+		     && p->kids[1]->kids[0]->op == VREG+P
+		     && p->kids[1]->syms[RX]->u.t.cse
+		     && generic(p->kids[1]->syms[RX]->u.t.cse->op) == CNST
+)) {
+			rtarget(p, 1, intreg[ECX]);
+			setreg(p, intreg[EAX]);
+		}
+		break;
+	case MULU:
+		setreg(p, quo);
+		rtarget(p, 0, intreg[EAX]);
+		break;
+	case DIVI: case DIVU:
+		setreg(p, quo);
+		rtarget(p, 0, intreg[EAX]);
+		rtarget(p, 1, intreg[ECX]);
+		break;
+	case MODI: case MODU:
+		setreg(p, rem);
+		rtarget(p, 0, intreg[EAX]);
+		rtarget(p, 1, intreg[ECX]);
+		break;
+	case ASGNB:
+		rtarget(p, 0, intreg[EDI]);
+		rtarget(p, 1, intreg[ESI]);
+		break;
+	case ARGB:
+		rtarget(p->kids[0], 0, intreg[ESI]);
+		break;
+	case CALLI: case CALLV:
+		setreg(p, intreg[EAX]);
+		break;
+	case RETI:
+		rtarget(p, 0, intreg[EAX]);
+		break;
+	}
+}
+
+static void clobber(p) Node p; {
+	static int nstack = 0;
+
+	assert(p);
+	nstack = ckstack(p, nstack);
+	assert(p->count > 0 || nstack == 0);
+	switch (p->op) {
+     
+        case DIVI: case DIVU: case MULU:
+               spill(1 << EDX, IREG, p);
+               break;
+        case MODI: case MODU:
+               spill(1 << EAX, IREG, p);
+               break;
+
+	case ASGNB: case ARGB:
+		spill(1<<ECX | 1<<ESI | 1<<EDI, IREG, p);
+		break;
+	case EQD: case LED: case GED: case LTD: case GTD: case NED:
+	case EQF: case LEF: case GEF: case LTF: case GTF: case NEF:
+		spill(1<<EAX, IREG, p);
+		break;
+	case CALLD: case CALLF:
+		spill(1<<EDX | 1<<EAX, IREG, p);
+		break;
+	}
+}
+
+
+#define isfp(p) (optype((p)->op)==F || optype((p)->op)==D)
+
+static int ckstack(p, n) Node p; int n; {
+	int i;
+
+	for (i = 0; i < NELEMS(p->x.kids) && p->x.kids[i]; i++)
+		if (isfp(p->x.kids[i]))
+			n--;
+	if (isfp(p) && p->count > 0)
+		n++;
+	if (n > 8)
+		error("expression too complicated\n");
+	debug(fprint(2, "(ckstack(%x)=%d)\n", p, n));
+	assert(n >= 0);
+	return n;
+}
+
+static int
+hasargs(p)
+	Node p;
+{
+	assert(p);
+	assert(generic(p->op) == CALL);
+	assert(p->syms[0]);
+	if (p->syms[0]->u.c.v.i > 0)
+		return 0;
+	return LBURG_MAX;
+}
+
+static int 
+memop(p)
+	Node p;
+{
+	assert(p);
+	assert(generic(p->op) == ASGN);
+	assert(p->kids[0]);
+	assert(p->kids[1]);
+	if (generic(p->kids[1]->kids[0]->op) == INDIR
+	    && sametree(p->kids[0], p->kids[1]->kids[0]->kids[0]))
+		return 3;
+	else
+		return LBURG_MAX;
+}
+
+static int 
+sametree(p, q)
+	Node p, q;
+{
+	return p == NULL && q == NULL
+		|| p && q && p->op == q->op && p->syms[0] == q->syms[0]
+		&& sametree(p->kids[0], q->kids[0])
+		&& sametree(p->kids[1], q->kids[1]);
+}
+
+static void
+emit0(q)
+	Node q;
+{
+#if _EMIT_DEBUG
+	Node p = q;
+	for (; p; p = p->x.next) {
+		if (p->op == LABEL+V) {
+			assert(p->syms[0]);
+			print("# %s:\n", p->syms[0]->x.name);
+		} else {
+			int i;
+			print("# node%c%d %s count=%d", p->x.listed ? '\'' : '#', p->x.inst,
+				opname(p->op), p->count);
+			for (i = 0; i < NELEMS(p->kids) && p->kids[i]; i++)
+				print(" #%d", p->kids[i]->x.inst);
+			for (i = 0; i < NELEMS(p->syms) && p->syms[i]; i++) {
+				if (p->syms[i]->x.name)
+					print(" %s", p->syms[i]->x.name);
+				if (p->syms[i]->name != p->syms[i]->x.name)
+					print(" (%s)", p->syms[i]->name);
+			}
+			print("\n");
+		}
+	}
+#endif
+	emit(q);
+}
+
+static void 
+emit2(p)
+	Node p;
+{
+#define preg(f) ((f)[getregnum(p->x.kids[0])]->x.name)
+
+	switch (p->op) {
+	case CVCI:
+		print("\tmovsbl\t%s,%s\n",
+		      preg(charreg),
+		      p->syms[RX]->x.name);
+		break;
+	case CVCU:
+		print("\tmovzbl\t%s,%s\n",
+		      preg(charreg),
+		      p->syms[RX]->x.name);
+		break;
+	case CVSI:
+		print("\tmovswl\t%s,%s\n",
+		      preg(shortreg),
+		      p->syms[RX]->x.name);
+		break;
+	case CVSU:
+		print("\tmovzwl\t%s,%s\n",
+		      preg(shortreg),
+		      p->syms[RX]->x.name);
+		break;
+	case CVIC: case CVIS:
+	case CVUC: case CVUS:
+		{ char *dst = shortreg[getregnum(p)]->x.name;
+		  char *src = preg(shortreg);
+		  if (dst != src)
+			print("\tmovl\t%s,%s\n", src, dst);
+		}
+		break;
+	}
+}
+
+static void 
+doarg(p)
+	Node p;
+{
+	assert(p && p->syms[0]);
+	mkactual(4, p->syms[0]->u.c.v.i);
+}
+
+static void 
+blkfetch(k, off, reg, tmp)
+{
+}
+
+static void 
+blkstore(k, off, reg, tmp)
+{
+}
+
+static void 
+blkloop(dreg, doff, sreg, soff, size, tmps)
+	int tmps[];
+{
+}
+
+static void 
+local(p)
+	Symbol p;
+{
+	if (isfloat(p->type))
+		p->sclass = AUTO;
+	if (askregvar(p, rmap[ttob(p->type)]) == 0)
+		mkauto(p);
+}
+
+static void 
+function(f, caller, callee, n)
+	Symbol f, callee[], caller[];
+	int n;
+{
+	int i;
+
+	print("\t.type\t%s,@function\n", f->x.name);
+	print("%s:\n", f->x.name);
+	print("\tpushl\t%%ebx\n");
+	print("\tpushl\t%%esi\n");
+	print("\tpushl\t%%edi\n");
+	print("\tpushl\t%%ebp\n");
+	print("\tmovl\t%%esp,%%ebp\n");
+
+	usedmask[0] = usedmask[1] = 0;
+	freemask[0] = freemask[1] = ~(unsigned) 0;
+	offset = 16 + 4;
+	for (i = 0; callee[i]; i++) {
+		Symbol p = callee[i];
+		Symbol q = caller[i];
+		assert(q);
+		offset = roundup(offset, q->type->align);
+		p->x.offset = q->x.offset = offset;
+		p->x.name = q->x.name = stringf("%d", p->x.offset);
+		p->sclass = q->sclass = AUTO;
+		offset += roundup(q->type->size, 4);
+	}
+	assert(caller[i] == 0);
+	offset = maxoffset = 0;
+	gencode(caller, callee);
+	framesize = roundup(maxoffset, 4);
+	if (framesize > 0)
+		print("\tsubl\t$%d,%%esp\n", framesize);
+	emitcode();
+
+	print("\tleave\n");
+	print("\tpopl\t%%edi\n");
+	print("\tpopl\t%%esi\n");
+	print("\tpopl\t%%ebx\n");
+	print("\tret\n");
+	{ int l = genlabel(1);
+	  print("L%d:\n", l);
+	  print("\t.size\t%s,L%d-%s\n", f->x.name, l, f->x.name);
+	}
+}
+
+static void 
+defsymbol(p)
+	Symbol p;
+{
+	if (p->scope >= LOCAL && p->sclass == STATIC)
+		p->x.name = stringf("L%d", genlabel(1));
+	else if (p->generated)
+		p->x.name = stringf("L%s", p->name);
+	else if (p->scope == GLOBAL || p->sclass == EXTERN)
+		p->x.name = stringf("_%s", p->name);
+/*
+	else if (p->scope == CONSTANTS
+		 && (isint(p->type) || isptr(p->type))
+		 && p->name[0] == '0' && p->name[1] == 'x')
+		p->x.name = stringf("0%sH", &p->name[2]);
+*/
+	else
+		p->x.name = p->name;
+}
+
+static void 
+address(q, p, n)
+	Symbol q, p;
+	int n;
+{
+	if (p->scope == GLOBAL
+	    || p->sclass == STATIC || p->sclass == EXTERN)
+		q->x.name = stringf("%s%s%d",
+				    p->x.name, n >= 0 ? "+" : "", n);
+	else {
+		q->x.offset = p->x.offset + n;
+		q->x.name = stringd(q->x.offset);
+	}
+}
+
+static void 
+defconst(ty, v)
+	Value v;
+{
+	switch (ty) {
+	case C:
+		print("\t.byte\t%d\n", v.uc);
+		return;
+	case S:
+		print("\t.word\t%d\n", v.ss);
+		return;
+	case I:
+		print("\t.long\t%d\n", v.i);
+		return;
+	case U:
+		print("\t.long\t0x%x\n", v.u);
+		return;
+	case P:
+		print("\t.long\t0x%x\n", v.p);
+		return;
+	case F:
+		print("\t.long\t0x%x\n", *(unsigned *) &v.f);
+		return;
+	case D:{
+			unsigned *p = (unsigned *) &v.d;
+			print("\t.long\t0x%x,0x%x\n", p[swap], p[1 - swap]);
+			return;
+		}
+	}
+	assert(0);
+}
+
+static void 
+defaddress(p)
+	Symbol p;
+{
+	print("\t.long\t%s\n", p->x.name);
+}
+
+static void 
+defstring(n, str)
+	char *str;
+{
+	char *s;
+#if 1
+	for (s = str; s < str + n; s++)
+		print("\t.byte\t%d\n", *s);
+#else
+	print("\t.ascii\t\"", *s);
+	for (s = str; s < str + n; s++)
+		if (*s < 0x20)
+			print("\\0%o", *s);
+		else
+			print("%c", *s);
+	print("\"\n");
+#endif
+}
+
+static void 
+export(p)
+	Symbol p;
+{
+	print("\t.globl\t%s\n", p->x.name);
+}
+
+static void 
+import(p)
+	Symbol p;
+{
+	int oldseg = cseg;
+
+	if (p->ref > 0) {
+		segment(0);
+		print("\t.extern\t%s\n", p->x.name);
+		segment(oldseg);
+	}
+}
+
+static void global (p)
+	Symbol p;
+{
+	print("\t.align\t%d\n", p->type->align > 4 ? 4 : p->type->align);
+	if (!p->generated)
+		print("\t.type\t%s,@%s\n", p->x.name,
+			isfunc(p->type) ? "function" : "object");
+	if (p->u.seg == BSS) {
+		if (p->sclass == STATIC)
+			print("\t.lcomm\t%s,%d\n", p->x.name, p->type->size);
+		else
+			print("\t.comm\t%s,%d\n", p->x.name, p->type->size);
+	} else {
+		if (!p->generated)
+			print("\t.size\t%s,%d\n", p->x.name, p->type->size);
+		print("%s:\n", p->x.name);
+	}
+}
+
+static void 
+space(n)
+{
+	if (cseg != BSS)
+		print("\t.space\t%d\n", n);
+}
+
+#include <stab.h>
+static char *currentfile;       /* current file name */
+static int ntypes;
+
+static void stabblock ARGS((int, int, Symbol*));
+static void stabfend ARGS((Symbol, int));
+static void stabinit ARGS((char *, int, char *[]));
+static void stabline ARGS((Coordinate *));
+static void stabsym ARGS((Symbol));
+static void stabtype ARGS((Symbol));
+
+static void asgncode ARGS((Type, int));
+static void dbxout ARGS((Type));
+static int dbxtype ARGS((Type));
+static int emittype ARGS((Type, int, int));
+
+/* asgncode - assign type code to ty */
+static void asgncode(ty, lev) Type ty; {
+	if (ty->x.marked || ty->x.typeno)
+		return;
+	ty->x.marked = 1;
+	switch (ty->op) {
+	case VOLATILE: case CONST: case VOLATILE+CONST:
+		asgncode(ty->type, lev);
+		ty->x.typeno = ty->type->x.typeno;
+		break;
+	case POINTER: case FUNCTION: case ARRAY:
+		asgncode(ty->type, lev + 1);
+		/* fall thru */
+	case VOID: case CHAR: case SHORT: case INT: case UNSIGNED:
+	case FLOAT: case DOUBLE:
+		break;
+	case STRUCT: case UNION: {
+		Field p;
+		for (p = fieldlist(ty); p; p = p->link)
+			asgncode(p->type, lev + 1);
+		/* fall thru */
+	case ENUM:
+		if (ty->x.typeno == 0)
+			ty->x.typeno = ++ntypes;
+		if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9'))
+			dbxout(ty);
+		break;
+		}
+	default:
+		assert(0);
+	}
+}
+
+/* dbxout - output .stabs entry for type ty */
+static void dbxout(ty) Type ty; {
+	ty = unqual(ty);
+	if (!ty->x.printed) {
+		int col = 0;
+		print(".stabs \""), col += 8;
+		if (ty->u.sym && !(isfunc(ty) || isarray(ty) || isptr(ty)))
+			print("%s", ty->u.sym->name), col += strlen(ty->u.sym->name);
+		print(":%c", isstruct(ty) || isenum(ty) ? 'T' : 't'), col += 2;
+		emittype(ty, 0, col);
+		print("\",%d,0,0,0\n", N_LSYM);
+	}
+}
+
+/* dbxtype - emit a stabs entry for type ty, return type code */
+static int dbxtype(ty) Type ty; {
+	asgncode(ty, 0);
+	dbxout(ty);
+	return ty->x.typeno;
+}
+
+/*
+ * emittype - emit ty's type number, emitting its definition if necessary.
+ * Returns the output column number after emission; col is the approximate
+ * output column before emission and is used to emit continuation lines for long
+ * struct, union, and enum types. Continuations are not emitted for other types,
+ * even if the definition is long. lev is the depth of calls to emittype.
+ */
+static int emittype(ty, lev, col) Type ty; {
+	int tc = ty->x.typeno;
+
+	if (isconst(ty) || isvolatile(ty)) {
+		col = emittype(ty->type, lev, col);
+		ty->x.typeno = ty->type->x.typeno;
+		ty->x.printed = 1;
+		return col;
+	}
+	if (tc == 0) {
+		ty->x.typeno = tc = ++ntypes;
+/*              fprint(2,"`%t'=%d\n", ty, tc); */
+	}
+	print("%d", tc), col += 3;
+	if (ty->x.printed)
+		return col;
+	ty->x.printed = 1;
+	switch (ty->op) {
+	case VOID:	/* void is defined as itself */
+		print("=%d", tc), col += 1+3;
+		break;
+	case CHAR:	/* unsigned char is a subrange of int */
+		if (ty == unsignedchar)
+			print("=r1;0;255;"), col += 10;
+		else	/* following pcc, char is a subrange of itself */
+			print("=r%d;-128;127;", tc), col += 2+3+10;
+		break;
+	case SHORT:	/* short is a subrange of int */
+		if (ty == unsignedshort)
+			print("=r1;0;65535;"), col += 12;
+		else	/* signed */
+			print("=r1;-32768;32767;"), col += 17;
+		break;
+	case INT:	/* int is a subrange of itself */
+		print("=r1;%d;%d;", INT_MIN, INT_MAX), col += 4+11+1+10+1;
+		break;
+	case UNSIGNED:	/* unsigned is a subrange of int */
+		print("=r1;0;-1;"), col += 9;
+		break;
+	case FLOAT: case DOUBLE:	/* float, double get sizes instead of ranges */
+		print("=r1;%d;0;", ty->size), col += 4+1+3;
+		break;
+	case POINTER:
+		print("=*"), col += 2;
+		col = emittype(ty->type, lev + 1, col);
+		break;
+	case FUNCTION:
+		print("=f"), col += 2;
+		col = emittype(ty->type, lev + 1, col);
+		break;
+	case ARRAY:	/* array includes subscript as an int range */
+		if (ty->size && ty->type->size)
+			print("=ar1;0;%d;", ty->size/ty->type->size - 1), col += 7+3+1;
+		else
+			print("=ar1;0;-1;"), col += 10;
+		col = emittype(ty->type, lev + 1, col);
+		break;
+	case STRUCT: case UNION: {
+		Field p;
+		if (!ty->u.sym->defined) {
+			print("=x%c%s:", ty->op == STRUCT ? 's' : 'u', ty->u.sym->name);
+			col += 2+1+strlen(ty->u.sym->name)+1;
+			break;
+		}
+		if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9')) {
+			ty->x.printed = 0;
+			break;
+		}
+		print("=%c%d", ty->op == STRUCT ? 's' : 'u', ty->size), col += 1+1+3;
+		for (p = fieldlist(ty); p; p = p->link) {
+			if (p->name)
+				print("%s:", p->name), col += strlen(p->name)+1;
+			else
+				print(":"), col += 1;
+			col = emittype(p->type, lev + 1, col);
+			if (p->lsb)
+				print(",%d,%d;", 8*p->offset +
+					(IR->little_endian ? fieldright(p) : fieldleft(p)),
+					fieldsize(p));
+			else
+				print(",%d,%d;", 8*p->offset, 8*p->type->size);
+			col += 1+3+1+3+1;	/* accounts for ,%d,%d; */
+			if (col >= 80 && p->link) {
+				print("\\\\\",%d,0,0,0\n.stabs \"", N_LSYM);
+				col = 8;
+			}
+		}
+		print(";"), col += 1;
+		break;
+		}
+	case ENUM: {
+		Symbol *p;
+		if (lev > 0 && (*ty->u.sym->name < '0' || *ty->u.sym->name > '9')) {
+			ty->x.printed = 0;
+			break;
+		}
+		print("=e"), col += 2;
+		for (p = ty->u.sym->u.idlist; *p; p++) {
+			print("%s:%d,", (*p)->name, (*p)->u.value), col += strlen((*p)->name)+3;
+			if (col >= 80 && p[1]) {
+				print("\\\\\",%d,0,0,0\n.stabs \"", N_LSYM);
+				col = 8;
+			}
+		}
+		print(";"), col += 1;
+		break;
+		}
+	default:
+		assert(0);
+	}
+	return col;
+}
+
+/* stabblock - output a stab entry for '{' or '}' at level lev */
+static void stabblock(brace, lev, p) Symbol *p; {
+	if (brace == '{')
+		while (*p)
+			stabsym(*p++);
+	print(".stabd 0x%x,0,%d\n", brace == '{' ? N_LBRAC : N_RBRAC, lev);
+}
+
+/* stabfend - end of function p */
+static void stabfend(p, line) Symbol p; {}
+
+/* stabinit - initialize stab output */
+static void stabinit(file, argc, argv) char *file, *argv[]; {
+	typedef void (*Closure) ARGS((Symbol, void *));
+
+	if (file && *file) {
+		(*IR->segment)(CODE);
+		print("Ltext:.stabs \"%s\",0x%x,0,0,Ltext\n", file, N_SO);
+		currentfile = file;
+	}
+	dbxtype(inttype);
+	dbxtype(chartype);
+	dbxtype(doubletype);
+	dbxtype(floattype);
+	dbxtype(longdouble);
+	dbxtype(longtype);
+	dbxtype(shorttype);
+	dbxtype(signedchar);
+	dbxtype(unsignedchar);
+	dbxtype(unsignedlong);
+	dbxtype(unsignedshort);
+	dbxtype(unsignedtype);
+	dbxtype(voidtype);
+	foreach(types, GLOBAL, (Closure)stabtype, NULL);
+}
+
+/* stabline - emit stab entry for source coordinate *cp */
+static void stabline(cp) Coordinate *cp; {
+	if (cp->file && cp->file != currentfile) {
+		int lab = genlabel(1);
+		print("L%d: .stabs \"%s\",0x%x,0,0,L%d\n", lab,
+				cp->file, N_SOL, lab);
+		currentfile = cp->file;
+	}
+	print(".stabd 0x%x,0,%d\n", N_SLINE, cp->y);
+}
+
+/* stabsym - output a stab entry for symbol p */
+static void stabsym(p) Symbol p; {
+	int code, tc, sz = p->type->size;
+
+	if (p->generated || p->computed)
+		return;
+	if (isfunc(p->type)) {
+		print(".stabs \"%s:%c%d\",%d,0,0,%s\n", p->name,
+			p->sclass == STATIC ? 'f' : 'F', dbxtype(freturn(p->type)),
+			N_FUN, p->x.name);
+		return;
+	}
+	if (!IR->wants_argb && p->scope == PARAM && p->structarg) {
+		assert(isptr(p->type) && isstruct(p->type->type));
+		tc = dbxtype(p->type->type);
+		sz = p->type->type->size;
+	} else
+		tc = dbxtype(p->type);
+	if (p->sclass == AUTO && p->scope == GLOBAL || p->sclass == EXTERN) {
+		print(".stabs \"%s:G", p->name);
+		code = N_GSYM;
+	} else if (p->sclass == STATIC) {
+		print(".stabs \"%s:%c%d\",%d,0,0,%s\n", p->name, p->scope == GLOBAL ? 'S' : 'V',
+			tc, p->u.seg == BSS ? N_LCSYM : N_STSYM, p->x.name);
+		return;
+	} else if (p->sclass == REGISTER) {
+		if (p->scope > PARAM) {
+			int r = p->x.regnode->number;
+			if (p->x.regnode->set == FREG)
+				r += 32;	/* floating point */
+			print(".stabs \"%s:r%d\",%d,0,", p->name, tc, N_RSYM);
+			print("%d,%d\n", sz, r);
+		}
+		return;
+	} else if (p->scope == PARAM) {
+		print(".stabs \"%s:p", p->name);
+		code = N_PSYM;
+	} else if (p->scope >= LOCAL) {
+		print(".stabs \"%s:", p->name);
+		code = N_LSYM;
+	} else
+		assert(0);
+	print("%d\",%d,0,0,%s\n", tc, code,
+		p->scope >= PARAM && p->sclass != EXTERN ? p->x.name : "0");
+}
+
+/* stabtype - output a stab entry for type *p */
+static void stabtype(p) Symbol p; {
+	if (p->type) {
+		if (p->sclass == 0)
+			dbxtype(p->type);
+		else if (p->sclass == TYPEDEF)
+			print(".stabs \"%s:t%d\",%d,0,0,0\n", p->name, dbxtype(p->type), N_LSYM);
+	}
+}
+
+Interface x86freebsdIR = {
+	1, 1, 0,		/* char */
+	2, 2, 0,		/* short */
+	4, 4, 0,		/* int */
+	4, 4, 1,		/* float */
+	8, 4, 1,		/* double */
+	4, 4, 0,		/* T * */
+	0, 1, 0,		/* struct so that ARGB keeps stack aligned */
+	1,			/* little_endian */
+	0,			/* mulops_calls */
+	0,			/* wants_callb */
+	1,			/* wants_argb */
+	0,			/* left_to_right */
+	0,			/* wants_dag */
+	address,
+	blockbeg,
+	blockend,
+	defaddress,
+	defconst,
+	defstring,
+	defsymbol,
+	emit0,
+	export,
+	function,
+	gen,
+	global,
+	import,
+	local,
+	progbeg,
+	progend,
+	segment,
+	space,
+	stabblock, 0, 0, stabinit, stabline, stabsym, stabtype,
+	{1, blkfetch, blkstore, blkloop,
+		_label,
+		_rule,
+		_nts,
+		_kids,
+		_opname,
+		_arity,
+		_string,
+		_templates,
+		_isinstruction,
+		_ntname,
+		emit2,
+		doarg,
+		target,
+		clobber,
+	}
+};
diff --git a/lang/lcc/files/patch-01 b/lang/lcc/files/patch-01
new file mode 100644
index 000000000000..d487a6668df5
--- /dev/null
+++ b/lang/lcc/files/patch-01
@@ -0,0 +1,23 @@
+--- makefile.orig	Sat Oct 19 06:17:24 1996
++++ makefile	Sun Dec  8 19:40:15 1996
+@@ -40,6 +40,7 @@
+ 	$(BUILDDIR)/gen.o \
+ 	$(BUILDDIR)/mips.o \
+ 	$(BUILDDIR)/sparc.o \
++	$(BUILDDIR)/%%OPSYS%%.o \
+ 	$(BUILDDIR)/x86.o
+ 
+ $(BUILDDIR)/rcc:	$(RCCOBJS)
+@@ -76,10 +77,12 @@
+ 
+ $(BUILDDIR)/mips.o:	$(BUILDDIR)/mips.c;	$(CC) -c $(CFLAGS) -Isrc -o $@ $(BUILDDIR)/mips.c
+ $(BUILDDIR)/sparc.o:	$(BUILDDIR)/sparc.c;	$(CC) -c $(CFLAGS) -Isrc -o $@ $(BUILDDIR)/sparc.c
++$(BUILDDIR)/%%OPSYS%%.o:	$(BUILDDIR)/%%OPSYS%%.c;	$(CC) -c $(CFLAGS) -Isrc -o $@ $(BUILDDIR)/%%OPSYS%%.c
+ $(BUILDDIR)/x86.o:	$(BUILDDIR)/x86.c;	$(CC) -c $(CFLAGS) -Isrc -o $@ $(BUILDDIR)/x86.c
+ 
+ $(BUILDDIR)/mips.c:	$(BUILDDIR)/lburg src/mips.md;	$(BUILDDIR)/lburg <src/mips.md  >$@
+ $(BUILDDIR)/sparc.c:	$(BUILDDIR)/lburg src/sparc.md;	$(BUILDDIR)/lburg <src/sparc.md >$@
++$(BUILDDIR)/%%OPSYS%%.c:	$(BUILDDIR)/lburg src/%%OPSYS%%.md;	$(BUILDDIR)/lburg <src/%%OPSYS%%.md   >$@
+ $(BUILDDIR)/x86.c:	$(BUILDDIR)/lburg src/x86.md;	$(BUILDDIR)/lburg <src/x86.md   >$@
+ 
+ YFLAGS=
diff --git a/lang/lcc/files/patch-02 b/lang/lcc/files/patch-02
new file mode 100644
index 000000000000..d663f0fe2891
--- /dev/null
+++ b/lang/lcc/files/patch-02
@@ -0,0 +1,28 @@
+--- etc/lcc.c.orig	Fri Oct 18 17:37:14 1996
++++ etc/lcc.c	Sun Dec  8 19:42:38 1996
+@@ -433,9 +433,9 @@
+ "	unrecognized options are taken to be linker options\n",
+ "-A	warn about nonANSI usage; 2nd -A warns more\n",
+ "-b	emit expression-level profiling code; see bprint(1)\n",
+-#ifdef sparc
++#if defined(sparc) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+ "-Bstatic -Bdynamic	specify static or dynamic libraries\n",
+-#endif
++#endif 
+ "-Bdir/	use the compiler named `dir/rcc'\n",
+ "-c	compile only\n",
+ "-dn	set switch statement density to `n'\n",
+@@ -535,11 +535,11 @@
+ 		plist = append(arg, plist);
+ 		return;
+ 	case 'B':	/* -Bdir -Bstatic -Bdynamic */
+-#ifdef sun
++#if defined(sun) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+ 		if (strcmp(arg, "-Bstatic") == 0 || strcmp(arg, "-Bdynamic") == 0)
+ 			llist[1] = append(arg, llist[1]);
+ 		else
+-#endif	
++#endif
+ 		{
+ 		static char *path;
+ 		if (path)
diff --git a/lang/lcc/files/patch-03 b/lang/lcc/files/patch-03
new file mode 100644
index 000000000000..420ebad6856e
--- /dev/null
+++ b/lang/lcc/files/patch-03
@@ -0,0 +1,16 @@
+--- src/bind.c.orig	Fri Oct 18 17:38:38 1996
++++ src/bind.c	Fri Dec 27 02:31:21 1996
+@@ -1,10 +1,13 @@
+ #include "c.h"
+ extern Interface nullIR,   symbolicIR;
++extern Interface x86freebsdIR;
+ extern Interface mipsebIR, mipselIR;
+ extern Interface sparcIR,  solarisIR;
+ extern Interface x86IR;
++
+ Binding bindings[] = {
+ 	"symbolic",      &symbolicIR,
++	"i386-FreeBSD",	 &x86freebsdIR,
+ 	"mips-irix",     &mipsebIR,
+ 	"mips-ultrix",   &mipselIR,
+ 	"sparc-sun",     &sparcIR,