2011-03-30 12:46:40 +00:00
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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include "../vc/v.out.h"
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2020-04-11 03:03:49 +00:00
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#include "../cc/compat.h"
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2011-03-30 12:46:40 +00:00
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typedef struct Adr Adr;
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typedef struct Sym Sym;
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typedef struct Autom Auto;
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typedef struct Prog Prog;
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typedef struct Optab Optab;
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typedef struct Oprang Oprang;
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typedef uchar Opcross[32][2][32];
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typedef struct Count Count;
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#define P ((Prog*)0)
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#define S ((Sym*)0)
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#define TNAME (curtext&&curtext->from.sym?curtext->from.sym->name:noname)
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struct Adr
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{
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union
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{
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long u0offset;
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char* u0sval;
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Ieee* u0ieee;
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} u0;
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union
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{
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Auto* u1autom;
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Sym* u1sym;
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} u1;
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char type;
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char reg;
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char name;
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char class;
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};
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#define offset u0.u0offset
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#define sval u0.u0sval
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#define ieee u0.u0ieee
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#define autom u1.u1autom
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#define sym u1.u1sym
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struct Prog
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{
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Adr from;
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Adr to;
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union
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{
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long u0regused;
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Prog* u0forwd;
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} u0;
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Prog* cond;
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Prog* link;
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long pc;
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long line;
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uchar mark;
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uchar optab;
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char as;
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char reg;
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};
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#define regused u0.u0regused
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#define forwd u0.u0forwd
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struct Sym
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{
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char *name;
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short type;
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short version;
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short become;
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short frame;
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2017-03-19 02:05:24 +00:00
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char dupok;
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2011-03-30 12:46:40 +00:00
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long value;
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Sym* link;
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};
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struct Autom
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{
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Sym* asym;
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Auto* link;
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long aoffset;
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short type;
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};
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struct Optab
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{
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char as;
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char a1;
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char a2;
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char a3;
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char type;
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char size;
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char param;
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};
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struct Oprang
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{
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Optab* start;
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Optab* stop;
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};
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struct Count
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{
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long count;
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long outof;
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};
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enum
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{
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STEXT = 1,
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SDATA,
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SBSS,
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SDATA1,
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SXREF,
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SLEAF,
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SFILE,
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SCONST,
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SSTRING,
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C_NONE = 0,
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C_REG,
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C_FREG,
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C_FCREG,
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C_MREG,
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C_HI,
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C_LO,
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C_ZCON,
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C_SCON,
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C_ADD0CON,
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C_AND0CON,
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C_ADDCON,
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C_ANDCON,
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C_UCON,
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C_LCON,
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C_SACON,
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C_SECON,
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C_LACON,
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C_LECON,
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C_SBRA,
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C_LBRA,
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C_SAUTO,
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C_SEXT,
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C_LAUTO,
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C_LEXT,
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C_ZOREG,
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C_SOREG,
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C_LOREG,
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C_GOK,
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NSCHED = 20,
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/* mark flags */
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FOLL = 1<<0,
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LABEL = 1<<1,
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LEAF = 1<<2,
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SYNC = 1<<3,
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BRANCH = 1<<4,
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LOAD = 1<<5,
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FCMP = 1<<6,
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NOSCHED = 1<<7,
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BIG = 32766,
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STRINGSZ = 200,
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NHASH = 10007,
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NHUNK = 100000,
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MINSIZ = 64,
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NENT = 100,
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MAXIO = 8192,
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MAXHIST = 20, /* limit of path elements for history symbols */
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};
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EXTERN union
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{
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struct
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{
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uchar obuf[MAXIO]; /* output buffer */
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uchar ibuf[MAXIO]; /* input buffer */
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} u;
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char dbuf[1];
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} buf;
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#define cbuf u.obuf
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#define xbuf u.ibuf
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EXTERN long HEADR; /* length of header */
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EXTERN int HEADTYPE; /* type of header */
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EXTERN long INITDAT; /* data location */
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EXTERN long INITRND; /* data round above text location */
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EXTERN long INITTEXT; /* text location */
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EXTERN char* INITENTRY; /* entry point */
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EXTERN long autosize;
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EXTERN Biobuf bso;
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EXTERN long bsssize;
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EXTERN int cbc;
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EXTERN uchar* cbp;
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EXTERN int cout;
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EXTERN Auto* curauto;
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EXTERN Auto* curhist;
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EXTERN Prog* curp;
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EXTERN Prog* curtext;
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EXTERN Prog* datap;
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EXTERN long datsize;
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EXTERN char debug[128];
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EXTERN Prog* etextp;
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EXTERN Prog* firstp;
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EXTERN char fnuxi4[4]; /* for 3l [sic] */
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EXTERN char fnuxi8[8];
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EXTERN char* noname;
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EXTERN Sym* hash[NHASH];
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EXTERN Sym* histfrog[MAXHIST];
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EXTERN int histfrogp;
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EXTERN int histgen;
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EXTERN char* library[50];
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EXTERN char* libraryobj[50];
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EXTERN int libraryp;
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EXTERN int xrefresolv;
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EXTERN char inuxi1[1];
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EXTERN char inuxi2[2];
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EXTERN char inuxi4[4];
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EXTERN Prog* lastp;
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EXTERN long lcsize;
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EXTERN char literal[32];
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EXTERN int nerrors;
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EXTERN long instoffset;
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EXTERN Opcross opcross[10];
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EXTERN Oprang oprange[ALAST];
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EXTERN char* outfile;
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EXTERN long pc;
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EXTERN uchar repop[ALAST];
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EXTERN long symsize;
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EXTERN Prog* textp;
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EXTERN long textsize;
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EXTERN int version;
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EXTERN char xcmp[32][32];
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EXTERN Prog zprg;
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EXTERN int dtype;
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EXTERN int little;
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EXTERN struct
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{
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Count branch;
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Count fcmp;
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Count load;
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Count mfrom;
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Count page;
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Count jump;
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} nop;
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extern char* anames[];
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extern Optab optab[];
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#pragma varargck type "A" int
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#pragma varargck type "D" Adr*
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#pragma varargck type "N" Adr*
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#pragma varargck type "P" Prog*
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#pragma varargck type "S" char*
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#pragma varargck argpos diag 1
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int Aconv(Fmt*);
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int Dconv(Fmt*);
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int Nconv(Fmt*);
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int Pconv(Fmt*);
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int Sconv(Fmt*);
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int aclass(Adr*);
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void addhist(long, int);
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void addnop(Prog*);
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void append(Prog*, Prog*);
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void asmb(void);
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void asmlc(void);
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int asmout(Prog*, Optab*, int);
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void asmsym(void);
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long atolwhex(char*);
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Prog* brloop(Prog*);
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void buildop(void);
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void buildrep(int, int);
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void cflush(void);
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int cmp(int, int);
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int compound(Prog*);
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double cputime(void);
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void datblk(long, long, int);
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void diag(char*, ...);
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void dodata(void);
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void doprof1(void);
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void doprof2(void);
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long entryvalue(void);
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void errorexit(void);
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void exchange(Prog*);
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int find1(long, int);
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void follow(void);
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void histtoauto(void);
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double ieeedtod(Ieee*);
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long ieeedtof(Ieee*);
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int isnop(Prog*);
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void ldobj(int, long, char*);
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void loadlib(void);
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void listinit(void);
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Sym* lookup(char*, int);
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void lput(long);
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void bput(long);
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void mkfwd(void);
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void names(void);
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void nocache(Prog*);
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void noops(void);
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void nuxiinit(void);
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void objfile(char*);
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int ocmp(const void*, const void*);
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long opirr(int);
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Optab* oplook(Prog*);
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long oprrr(int);
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void patch(void);
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void prasm(Prog*);
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void prepend(Prog*, Prog*);
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Prog* prg(void);
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int pseudo(Prog*);
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void putsymb(char*, int, long, int);
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long regoff(Adr*);
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int relinv(int);
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long rnd(long, long);
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void sched(Prog*, Prog*);
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void span(void);
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void strnput(char*, int);
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void undef(void);
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void xdefine(char*, int, long);
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void xfol(Prog*);
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void xfol(Prog*);
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void nopstat(char*, Count*);
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