Drop LLC compiler support

Seems it's been not used for years anyway

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

diff --git a/lcc/README b/lcc/README
deleted file mode 100644 (file)
index 569b9be..0000000
--- a/lcc/README
+++ /dev/null
@@ -1,52 +0,0 @@
-This directory contains the necessary files to port the C compiler
-``LCC'' (available by FTP from sunsite.doc.ic.ac.uk in the directory
-/computing/programming/languages/c/lcc) to compile for Linux (a.out
-or ELF) by using NASM as a back-end code generator.
-
-This patch has been tested on lcc version 3.6.
-
-To install:
-
-- Copy `x86nasm.md' into the `src' directory of the lcc tree.
-
-- Copy either `lin-elf.c' or `lin-aout.c' into the `etc' directory.
-
-- If you're installing for a.out, edit `x86nasm.md' and change the
-  conditional after the comment reading "CHANGE THIS FOR a.out" in
-  the `defsymbol' function from `#if 0' to `#if 1'.
-
-- Make the following changes to `bind.c' in the `src' directory:
-
-  - Near the top of the file, add a line that reads
-       extern Interface x86nasmIR;
-
-  - In the `bindings' array, add the lines
-        "x86-nasm",      &x86nasmIR,
-        "x86/nasm",      &x86nasmIR,
-    (in sensible looking places...)
-
-  A sample `bind.c' has been provided to show what the result of
-  this might look like. You might be able to get away with using it
-  directly...
-
-- Modify the lcc makefile to include rules for x86nasm.o: this will
-  have to be done in about three places. Just copy any line with
-  `x86' on it and modify it to read `x86nasm' everywhere. (Except
-  that in the list of object files that rcc is made up from, do
-  remember to ensure that every line but the last has a trailing
-  backslash...)
-
-- You may have to modify the contents of `lin-elf.c' or `lin-aout.c'
-  to reflect the true locations of files such as crt0.o, crt1.o,
-  ld-linux.so and so forth. If you don't know where to find these,
-  compile a short C program with `gcc -v' and see what command line
-  gcc feeds to `ld'.
-
-- You should now be able to build lcc, using `lin-elf.c' or
-  `lin-aout.c' as the system-dependent part of the `lcc' wrapper
-  program.
-
-- Symlink x86nasm.c into the `src' directory before attempting the
-  triple test, or the compile will fail.
-
-- Now it should pass the triple test, on either ELF or a.out. Voila!

diff --git a/lcc/bind.c b/lcc/bind.c
deleted file mode 100644 (file)
index 286431d..0000000
--- a/lcc/bind.c
+++ /dev/null
@@ -1,23 +0,0 @@
-#include "c.h"
-extern Interface nullIR, symbolicIR;
-extern Interface mipsebIR, mipselIR;
-extern Interface sparcIR, solarisIR;
-extern Interface x86IR, x86nasmIR;
-Binding bindings[] = {
-    "symbolic", &symbolicIR,
-    "mips-irix", &mipsebIR,
-    "mips-ultrix", &mipselIR,
-    "sparc-sun", &sparcIR,
-    "sparc-solaris", &solarisIR,
-    "x86-dos", &x86IR,
-    "x86-nasm", &x86nasmIR,
-    "symbolic/irix", &symbolicIR,       /* omit */
-    "mips/irix", &mipsebIR,     /* omit */
-    "mips/ultrix", &mipselIR,   /* omit */
-    "sparc/sun", &sparcIR,      /* omit */
-    "sparc/solaris", &solarisIR,        /* omit */
-    "x86/dos", &x86IR,          /* omit */
-    "x86/nasm", &x86nasmIR,     /* omit */
-    "null", &nullIR,
-    NULL, NULL
-};

diff --git a/lcc/lin-aout.c b/lcc/lin-aout.c
deleted file mode 100644 (file)
index e4ac48f..0000000
--- a/lcc/lin-aout.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/* x86 running linux and using nasm as a.out */
-
-#include <string.h>
-
-#ifndef LCCDIR
-#define LCCDIR "/usr/local/lib/lcc/"
-#endif
-
-#define NASMPATH "/usr/local/bin/nasm"
-
-char *cpp[] = { LCCDIR "cpp", "-D__STDC__=1",
-    "-Di386", "-D__i386", "-D__i386__",
-    "-Dlinux", "-D__linux", "-D__linux__",
-    "-Dunix", "-D__unix", "-D__unix__",
-    "$1", "$2", "$3", 0
-};
-char *include[] = { "-I" LCCDIR "include", "-I/usr/local/include",
-    "-I/usr/include", 0
-};
-char *com[] = { LCCDIR "rcc", "-target=x86/nasm",
-    "$1", "$2", "$3", 0
-};
-char *as[] = { NASMPATH, "-a", "-faout", "-o", "$3", "$1", "$2", 0 };
-char *ld[] = { "/usr/bin/ld", "-m", "i386linux",
-    "-L/usr/i486-linuxaout/lib",
-    "-o", "$3", "$1",
-    "/usr/i486-linuxaout/lib/crt0.o",
-    "$2", "", "-lc", 0
-};
-static char *bbexit = LCCDIR "bbexit.o";
-
-extern char *concat(char *, char *);
-extern int access(const char *, int);
-
-int option(char *arg)
-{
-    if (strncmp(arg, "-lccdir=", 8) == 0) {
-        cpp[0] = concat(&arg[8], "/cpp");
-        include[0] = concat("-I", concat(&arg[8], "/include"));
-        com[0] = concat(&arg[8], "/rcc");
-        bbexit = concat(&arg[8], "/bbexit.o");
-    } else if (strcmp(arg, "-g") == 0) ;
-    else if (strcmp(arg, "-b") == 0 && access(bbexit, 4) == 0)
-        ld[9] = bbexit;
-    else
-        return 0;
-    return 1;
-}

diff --git a/lcc/lin-elf.c b/lcc/lin-elf.c
deleted file mode 100644 (file)
index 693309f..0000000
--- a/lcc/lin-elf.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* x86 running linux and using nasm as ELF */
-
-#include <string.h>
-
-#ifndef LCCDIR
-#define LCCDIR "/usr/local/lib/lcc/"
-#endif
-
-#define NASMPATH "/usr/local/bin/nasm"
-
-char *cpp[] = { LCCDIR "cpp", "-D__STDC__=1",
-    "-D__ELF__", "-Di386", "-D__i386", "-D__i386__",
-    "-Dlinux", "-D__linux", "-D__linux__",
-    "$1", "$2", "$3", 0
-};
-char *include[] = { "-I" LCCDIR "include", "-I/usr/local/include",
-    "-I/usr/include", 0
-};
-char *com[] = { LCCDIR "rcc", "-target=x86/nasm",
-    "$1", "$2", "$3", 0
-};
-char *as[] = { NASMPATH, "-a", "-felf", "-o", "$3", "$1", "$2", 0 };
-char *ld[] = { "/usr/bin/ld", "-m", "elf_i386",
-    "-dynamic-linker", "/lib/ld-linux.so.1",
-    "-L/usr/i486-linux/lib",
-    "-o", "$3", "$1",
-    "/usr/lib/crt1.o", "/usr/lib/crti.o", "/usr/lib/crtbegin.o",
-    "$2", "",
-    "-lc", "", "/usr/lib/crtend.o", "/usr/lib/crtn.o", 0
-};
-static char *bbexit = LCCDIR "bbexit.o";
-
-extern char *concat(char *, char *);
-extern int access(const char *, int);
-
-int option(char *arg)
-{
-    if (strncmp(arg, "-lccdir=", 8) == 0) {
-        cpp[0] = concat(&arg[8], "/cpp");
-        include[0] = concat("-I", concat(&arg[8], "/include"));
-        com[0] = concat(&arg[8], "/rcc");
-        bbexit = concat(&arg[8], "/bbexit.o");
-    } else if (strcmp(arg, "-g") == 0) ;
-    else if (strcmp(arg, "-b") == 0 && access(bbexit, 4) == 0)
-        ld[13] = bbexit;
-    else
-        return 0;
-    return 1;
-}

diff --git a/lcc/x86nasm.md b/lcc/x86nasm.md
deleted file mode 100644 (file)
index 54d0be6..0000000
--- a/lcc/x86nasm.md
+++ /dev/null
@@ -1,703 +0,0 @@
-%{
-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 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 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 ckstack ARGS((Node, int));
-static int memop 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:  INDIRD(VREGP)     "# read register\n"
-reg:  INDIRF(VREGP)     "# read register\n"
-reg:  INDIRI(VREGP)     "# read register\n"
-reg:  INDIRP(VREGP)     "# read register\n"
-reg:  INDIRS(VREGP)     "# read register\n"
-stmt: ASGNC(VREGP,reg)  "# write register\n"
-stmt: ASGND(VREGP,reg)  "# write register\n"
-stmt: ASGNF(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"
-con: CNSTC  "%a"
-con: CNSTI  "%a"
-con: CNSTP  "%a"
-con: CNSTS  "%a"
-con: CNSTU  "%a"
-stmt: reg  ""
-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: con     "%0"
-base: ADDRGP          "%a"
-base: reg             "%0"
-base: ADDI(reg,acon)  "%0 + (%1)"
-base: ADDP(reg,acon)  "%0 + (%1)"
-base: ADDU(reg,acon)  "%0 + (%1)"
-base: ADDRFP  "ebp + %a"
-base: ADDRLP  "ebp + %a"
-index: reg "%0"
-index: LSHI(reg,con1)  "%0*2"
-index: LSHI(reg,con2)  "%0*4"
-index: LSHI(reg,con3)  "%0*8"
-
-con1:  CNSTI  "1"  range(a, 1, 1)
-con1:  CNSTU  "1"  range(a, 1, 1)
-con2:  CNSTI  "2"  range(a, 2, 2)
-con2:  CNSTU  "2"  range(a, 2, 2)
-con3:  CNSTI  "3"  range(a, 3, 3)
-con3:  CNSTU  "3"  range(a, 3, 3)
-index: LSHU(reg,con1)  "%0*2"
-index: LSHU(reg,con2)  "%0*4"
-index: LSHU(reg,con3)  "%0*8"
-addr: base              "[%0]"
-addr: ADDI(index,base)  "[%1 + %0]"
-addr: ADDP(index,base)  "[%1 + %0]"
-addr: ADDU(index,base)  "[%1 + %0]"
-addr: index  "[%0]"
-mem: INDIRC(addr)  "byte %0"
-mem: INDIRI(addr)  "dword %0"
-mem: INDIRP(addr)  "dword %0"
-mem: INDIRS(addr)  "word %0"
-rc:   reg  "%0"
-rc:   con  "%0"
-
-mr:   reg  "%0"
-mr:   mem  "%0"
-
-mrc0: mem  "%0"
-mrc0: rc   "%0"
-mrc1: mem  "%0"  1
-mrc1: rc   "%0"
-
-mrc3: mem  "%0"  3
-mrc3: rc   "%0"
-reg: addr        "lea %c,%0\n"  1
-reg: mrc0        "mov %c,%0\n"  1
-reg: LOADC(reg)  "mov %c,%0\n"  move(a)
-reg: LOADI(reg)  "mov %c,%0\n"  move(a)
-reg: LOADP(reg)  "mov %c,%0\n"  move(a)
-reg: LOADS(reg)  "mov %c,%0\n"  move(a)
-reg: LOADU(reg)  "mov %c,%0\n"  move(a)
-reg: ADDI(reg,mrc1)  "?mov %c,%0\nadd %c,%1\n"  1
-reg: ADDP(reg,mrc1)  "?mov %c,%0\nadd %c,%1\n"  1
-reg: ADDU(reg,mrc1)  "?mov %c,%0\nadd %c,%1\n"  1
-reg: SUBI(reg,mrc1)  "?mov %c,%0\nsub %c,%1\n"  1
-reg: SUBP(reg,mrc1)  "?mov %c,%0\nsub %c,%1\n"  1
-reg: SUBU(reg,mrc1)  "?mov %c,%0\nsub %c,%1\n"  1
-reg: BANDU(reg,mrc1)  "?mov %c,%0\nand %c,%1\n"  1
-reg: BORU(reg,mrc1)   "?mov %c,%0\nor %c,%1\n"   1
-reg: BXORU(reg,mrc1)  "?mov %c,%0\nxor %c,%1\n"  1
-stmt: ASGNI(addr,ADDI(mem,con1))  "inc %1\n"  memop(a)
-stmt: ASGNI(addr,ADDU(mem,con1))  "inc %1\n"  memop(a)
-stmt: ASGNP(addr,ADDP(mem,con1))  "inc %1\n"  memop(a)
-stmt: ASGNI(addr,SUBI(mem,con1))  "dec %1\n"  memop(a)
-stmt: ASGNI(addr,SUBU(mem,con1))  "dec %1\n"  memop(a)
-stmt: ASGNP(addr,SUBP(mem,con1))  "dec %1\n"  memop(a)
-stmt: ASGNI(addr,ADDI(mem,rc))   "add %1,%2\n"  memop(a)
-stmt: ASGNI(addr,ADDU(mem,rc))   "add %1,%2\n"  memop(a)
-stmt: ASGNI(addr,SUBI(mem,rc))   "sub %1,%2\n"  memop(a)
-stmt: ASGNI(addr,SUBU(mem,rc))   "sub %1,%2\n"  memop(a)
-
-stmt: ASGNI(addr,BANDU(mem,rc))  "and %1,%2\n"  memop(a)
-stmt: ASGNI(addr,BORU(mem,rc))   "or %1,%2\n"   memop(a)
-stmt: ASGNI(addr,BXORU(mem,rc))  "xor %1,%2\n"  memop(a)
-reg: BCOMU(reg)  "?mov %c,%0\nnot %c\n"  2
-reg: NEGI(reg)   "?mov %c,%0\nneg %c\n"  2
-
-stmt: ASGNI(addr,BCOMU(mem))  "not %1\n"  memop(a)
-stmt: ASGNI(addr,NEGI(mem))   "neg %1\n"  memop(a)
-reg: LSHI(reg,rc5)  "?mov %c,%0\nsal %c,%1\n"  2
-reg: LSHU(reg,rc5)  "?mov %c,%0\nshl %c,%1\n"  2
-reg: RSHI(reg,rc5)  "?mov %c,%0\nsar %c,%1\n"  2
-reg: RSHU(reg,rc5)  "?mov %c,%0\nshr %c,%1\n"  2
-
-stmt: ASGNI(addr,LSHI(mem,rc5))  "sal %1,%2\n"  memop(a)
-stmt: ASGNI(addr,LSHU(mem,rc5))  "shl %1,%2\n"  memop(a)
-stmt: ASGNI(addr,RSHI(mem,rc5))  "sar %1,%2\n"  memop(a)
-stmt: ASGNI(addr,RSHU(mem,rc5))  "shr %1,%2\n"  memop(a)
-
-rc5: CNSTI  "%a"  range(a, 0, 31)
-rc5: reg    "cl"
-reg: MULI(reg,mrc3)  "?mov %c,%0\nimul %c,%1\n"  14
-reg: MULI(con,mr)    "imul %c,%1,%0\n"  13
-reg: MULU(reg,mr)  "mul %1\n"  13
-reg: DIVU(reg,reg)  "xor edx,edx\ndiv %1\n"
-reg: MODU(reg,reg)  "xor edx,edx\ndiv %1\n"
-reg: DIVI(reg,reg)  "cdq\nidiv %1\n"
-reg: MODI(reg,reg)  "cdq\nidiv %1\n"
-reg: CVIU(reg)  "mov %c,%0\n"  move(a)
-reg: CVPU(reg)  "mov %c,%0\n"  move(a)
-reg: CVUI(reg)  "mov %c,%0\n"  move(a)
-reg: CVUP(reg)  "mov %c,%0\n"  move(a)
-reg: CVCI(INDIRC(addr))  "movsx %c,byte %0\n"  3
-reg: CVCU(INDIRC(addr))  "movzx %c,byte %0\n"  3
-reg: CVSI(INDIRS(addr))  "movsx %c,word %0\n"  3
-reg: CVSU(INDIRS(addr))  "movzx %c,word %0\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
-stmt: ASGNC(addr,rc)  "mov byte %0,%1\n"   1
-stmt: ASGNI(addr,rc)  "mov dword %0,%1\n"  1
-stmt: ASGNP(addr,rc)  "mov dword %0,%1\n"  1
-stmt: ASGNS(addr,rc)  "mov word %0,%1\n"   1
-stmt: ARGI(mrc3)  "push dword %0\n"  1
-stmt: ARGP(mrc3)  "push dword %0\n"  1
-stmt: ASGNB(reg,INDIRB(reg))  "mov ecx,%a\nrep movsb\n"
-stmt: ARGB(INDIRB(reg))  "sub esp,%a\nmov edi,esp\nmov ecx,%a\nrep movsb\n"
-
-memf: INDIRD(addr)        "qword %0"
-memf: INDIRF(addr)        "dword %0"
-memf: CVFD(INDIRF(addr))  "dword %0"
-reg: memf  "fld %0\n"  3
-stmt: ASGND(addr,reg)        "fstp qword %0\n"  7
-stmt: ASGNF(addr,reg)        "fstp dword %0\n"  7
-stmt: ASGNF(addr,CVDF(reg))  "fstp dword %0\n"  7
-stmt: ARGD(reg)  "sub esp,8\nfstp qword [esp]\n"
-stmt: ARGF(reg)  "sub esp,4\nfstp dword [esp]\n"
-reg: NEGD(reg)  "fchs\n"
-reg: NEGF(reg)  "fchs\n"
-reg: ADDD(reg,memf)  "fadd %1\n"
-reg: ADDD(reg,reg)  "faddp st1\n"
-reg: ADDF(reg,memf)  "fadd %1\n"
-reg: ADDF(reg,reg)  "faddp st1\n"
-reg: DIVD(reg,memf)  "fdiv %1\n"
-reg: DIVD(reg,reg)  "fdivp st1\n"
-reg: DIVF(reg,memf)  "fdiv %1\n"
-reg: DIVF(reg,reg)  "fdivp st1\n"
-reg: MULD(reg,memf)  "fmul %1\n"
-reg: MULD(reg,reg)  "fmulp st1\n"
-reg: MULF(reg,memf)  "fmul %1\n"
-reg: MULF(reg,reg)  "fmulp st1\n"
-reg: SUBD(reg,memf)  "fsub %1\n"
-reg: SUBD(reg,reg)  "fsubp st1\n"
-reg: SUBF(reg,memf)  "fsub %1\n"
-reg: SUBF(reg,reg)  "fsubp st1\n"
-reg: CVFD(reg)  "# CVFD\n"
-reg: CVDF(reg)  "sub esp,4\nfstp dword [esp]\nfld dword [esp]\nadd esp,4\n"  12
-
-stmt: ASGNI(addr,CVDI(reg))  "fistp dword %0\n"  29
-reg: CVDI(reg)  "sub esp,4\nfistp dword [esp]\npop %c\n" 31
-
-reg: CVID(INDIRI(addr))  "fild dword %0\n"  10
-reg: CVID(reg)  "push %0\nfild dword [esp]\nadd esp,4\n"  12
-
-addrj: ADDRGP  "%a"
-addrj: reg     "%0"  2
-addrj: mem     "%0"  2
-
-stmt:  JUMPV(addrj)  "jmp %0\n"  3
-stmt:  LABELV        "%a:\n"
-stmt: EQI(mem,rc)  "cmp %0,%1\nje near %a\n"   5
-stmt: GEI(mem,rc)  "cmp %0,%1\njge near %a\n"  5
-stmt: GTI(mem,rc)  "cmp %0,%1\njg near %a\n"   5
-stmt: LEI(mem,rc)  "cmp %0,%1\njle near %a\n"  5
-stmt: LTI(mem,rc)  "cmp %0,%1\njl near %a\n"   5
-stmt: NEI(mem,rc)  "cmp %0,%1\njne near %a\n"  5
-stmt: GEU(mem,rc)  "cmp %0,%1\njae near %a\n"  5
-stmt: GTU(mem,rc)  "cmp %0,%1\nja  near %a\n"  5
-stmt: LEU(mem,rc)  "cmp %0,%1\njbe near %a\n"  5
-stmt: LTU(mem,rc)  "cmp %0,%1\njb  near %a\n"  5
-stmt: EQI(reg,mrc1)  "cmp %0,%1\nje near %a\n"   4
-stmt: GEI(reg,mrc1)  "cmp %0,%1\njge near %a\n"  4
-stmt: GTI(reg,mrc1)  "cmp %0,%1\njg near %a\n"   4
-stmt: LEI(reg,mrc1)  "cmp %0,%1\njle near %a\n"  4
-stmt: LTI(reg,mrc1)  "cmp %0,%1\njl near %a\n"   4
-stmt: NEI(reg,mrc1)  "cmp %0,%1\njne near %a\n"  4
-
-stmt: GEU(reg,mrc1)  "cmp %0,%1\njae near %a\n"  4
-stmt: GTU(reg,mrc1)  "cmp %0,%1\nja near %a\n"   4
-stmt: LEU(reg,mrc1)  "cmp %0,%1\njbe near %a\n"  4
-stmt: LTU(reg,mrc1)  "cmp %0,%1\njb near %a\n"   4
-cmpf: memf  " %0"
-cmpf: reg   "p"
-stmt: EQD(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\nje near %a\n"
-stmt: GED(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njbe near %a\n"
-stmt: GTD(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njb near %a\n"
-stmt: LED(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njae near %a\n"
-stmt: LTD(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\nja near %a\n"
-stmt: NED(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njne near %a\n"
-
-stmt: EQF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\nje near %a\n"
-stmt: GEF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njbe near %a\n"
-stmt: GTF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njb near %a\n"
-stmt: LEF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njae near %a\n"
-stmt: LTF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\nja near %a\n"
-stmt: NEF(cmpf,reg)  "fcomp%0\nfstsw ax\nsahf\njne near %a\n"
-reg:  CALLI(addrj)  "call %0\nadd esp,%a\n"
-stmt: CALLV(addrj)  "call %0\nadd esp,%a\n"
-reg: CALLF(addrj)  "call %0\nadd esp,%a\n"
-reg: CALLD(addrj)  "call %0\nadd esp,%a\n"
-
-stmt: RETI(reg)  "# ret\n"
-stmt: RETF(reg)  "# ret\n"
-stmt: RETD(reg)  "# ret\n"
-%%
-static void progbeg(argc, argv) int argc; 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;
-       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) int n; {
-       if (n == cseg)
-               return;
-       cseg = n;
-       if (cseg == CODE)
-               print("[section .text]\n");
-       else if (cseg == DATA || cseg == LIT)
-               print("[section .data]\n");
-       else if (cseg == BSS)
-               print("[section .bss]\n");
-}
-static void progend() {
-
-}
-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->kids[1], 0, 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 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 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 emit2(p) Node p; {
-#define preg(f) ((f)[getregnum(p->x.kids[0])]->x.name)
-
-       if (p->op == CVCI)
-               print("movsx %s,%s\n", p->syms[RX]->x.name
-, preg(charreg));
-       else if (p->op == CVCU)
-               print("movzx %s,%s\n", p->syms[RX]->x.name
-, preg(charreg));
-       else if (p->op == CVSI)
-               print("movsx %s,%s\n", p->syms[RX]->x.name
-, preg(shortreg));
-       else if (p->op == CVSU)
-               print("movzx %s,%s\n", p->syms[RX]->x.name
-, preg(shortreg));
-       else if (p->op == CVIC || p->op == CVIS
-             || p->op == CVUC || p->op == CVUS) {
-               char *dst = shortreg[getregnum(p)]->x.name;
-               char *src = preg(shortreg);
-               if (dst != src)
-                       print("mov %s,%s\n", dst, src);
-       }
-}
-
-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)
-int k, off, reg, tmp; {}
-static void blkstore(k, off, reg, tmp)
-int k, off, reg, tmp; {}
-static void blkloop(dreg, doff, sreg, soff, size, tmps)
-int dreg, doff, sreg, soff, size, 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("%s:\n", f->x.name);
-       print("push ebx\n");
-       print("push esi\n");
-       print("push edi\n");
-       print("push ebp\n");
-       print("mov ebp,esp\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);
-               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("sub esp,%d\n", framesize);
-       emitcode();
-       print("mov esp,ebp\n");
-       print("pop ebp\n");
-       print("pop edi\n");
-       print("pop esi\n");
-       print("pop ebx\n");
-       print("ret\n");
-}
-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("$L%s", p->name);
-       else if (p->scope == GLOBAL || p->sclass == EXTERN)
-       /* CHANGE THIS FOR a.out */
-#if 0
-               p->x.name = stringf("$_%s", p->name);
-#else
-               p->x.name = stringf("$%s", p->name);
-#endif
-       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) int ty; Value v; {
-       switch (ty) {
-               case C: print("db %d\n",   v.uc); return;
-               case S: print("dw %d\n",   v.ss); return;
-               case I: print("dd %d\n",   v.i ); return;
-               case U: print("dd 0%xH\n", v.u ); return;
-               case P: print("dd 0%xH\n", v.p ); return;
-               case F:
-                       print("dd 0%xH\n", *(unsigned *)&v.f);
-                       return;
-               case D: {
-                       unsigned *p = (unsigned *)&v.d;
-                       print("dd 0%xH,0%xH\n", p[swap], p[1 - swap]);
-                       return;
-                       }
-       }
-       assert(0);
-}
-static void defaddress(p) Symbol p; {
-       print("dd %s\n", p->x.name);
-}
-static void defstring(n, str) int n; char *str; {
-       char *s;
-       int inquote = 1;
-
-       print("db '");
-
-       for (s = str; s < str + n; s++)
-       {
-               if ((*s & 0x7F) == *s && *s >= ' ' && *s != '\'') {
-                       if (!inquote){
-                               print(", '");
-                               inquote = 1;
-                       }
-                       print("%c",*s);
-               }
-               else
-               {
-                       if (inquote){
-                               print("', ");
-                               inquote = 0;
-                       }
-                       else
-                               print(", ");
-                       print("%d",*s);
-               }
-       }
-       if (inquote) print("'");
-       print("\n");
-}
-static void export(p) Symbol p; {
-       print("[global %s]\n", p->x.name);
-}
-static void import(p) Symbol p; {
-       if (p->ref > 0) {
-               print("[extern %s]\n", p->x.name);
-       }
-}
-static void global(p) Symbol p; {
-       int i;
-
-       if (p->u.seg == BSS)
-               print("resb ($-$$) & %d\n",
-                       p->type->align > 4 ? 3 : p->type->align-1);
-       else
-               print("times ($-$$) & %d nop\n",
-                       p->type->align > 4 ? 3 : p->type->align-1);
-       print("%s:\n", p->x.name);
-       if (p->u.seg == BSS)
-               print("resb %d\n", p->type->size);
-}
-static void space(n) int n; {
-       int i;
-
-       if (cseg != BSS)
-               print("times %d db 0\n", n);
-}
-Interface x86nasmIR = {
-       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, 4, 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,
-       emit,
-       export,
-       function,
-       gen,
-       global,
-       import,
-       local,
-       progbeg,
-       progend,
-       segment,
-       space,
-       0, 0, 0, 0, 0, 0, 0,
-       {1, blkfetch, blkstore, blkloop,
-           _label,
-           _rule,
-           _nts,
-           _kids,
-           _opname,
-           _arity,
-           _string,
-           _templates,
-           _isinstruction,
-           _ntname,
-           emit2,
-           doarg,
-           target,
-           clobber,
-}
-};