mirror of
https://github.com/lua/lua
synced 2024-11-22 12:51:30 +03:00
961 lines
21 KiB
Plaintext
961 lines
21 KiB
Plaintext
%{
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char *rcs_luastx = "$Id: lua.stx,v 2.5 1994/07/19 21:27:18 celes Exp $";
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mm.h"
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#include "opcode.h"
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#include "hash.h"
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#include "inout.h"
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#include "table.h"
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#include "lua.h"
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#define LISTING 0
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#ifndef CODE_BLOCK
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#define CODE_BLOCK 256
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#endif
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static Long maxcode;
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static Long maxmain;
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static Long maxcurr ;
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static Byte *code = NULL;
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static Byte *initcode;
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static Byte *basepc;
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static Long maincode;
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static Long pc;
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#define MAXVAR 32
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static long varbuffer[MAXVAR]; /* variables in an assignment list;
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it's long to store negative Word values */
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static int nvarbuffer=0; /* number of variables at a list */
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static Word localvar[STACKGAP]; /* store local variable names */
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static int nlocalvar=0; /* number of local variables */
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#define MAXFIELDS FIELDS_PER_FLUSH*2
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static Word fields[MAXFIELDS]; /* fieldnames to be flushed */
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static int nfields=0;
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static int ntemp; /* number of temporary var into stack */
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static int err; /* flag to indicate error */
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/* Internal functions */
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static void code_byte (Byte c)
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{
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if (pc>maxcurr-2) /* 1 byte free to code HALT of main code */
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{
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maxcurr *= 2;
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basepc = (Byte *)realloc(basepc, maxcurr*sizeof(Byte));
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if (basepc == NULL)
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{
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lua_error ("not enough memory");
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err = 1;
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}
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}
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basepc[pc++] = c;
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}
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static void code_word (Word n)
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{
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CodeWord code;
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code.w = n;
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code_byte(code.m.c1);
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code_byte(code.m.c2);
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}
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static void code_float (float n)
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{
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CodeFloat code;
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code.f = n;
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code_byte(code.m.c1);
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code_byte(code.m.c2);
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code_byte(code.m.c3);
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code_byte(code.m.c4);
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}
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static void code_word_at (Byte *p, Word n)
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{
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CodeWord code;
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code.w = n;
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*p++ = code.m.c1;
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*p++ = code.m.c2;
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}
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static void push_field (Word name)
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{
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if (nfields < STACKGAP-1)
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fields[nfields++] = name;
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else
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{
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lua_error ("too many fields in a constructor");
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err = 1;
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}
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}
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static void flush_record (int n)
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{
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int i;
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if (n == 0) return;
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code_byte(STORERECORD);
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code_byte(n);
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for (i=0; i<n; i++)
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code_word(fields[--nfields]);
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ntemp -= n;
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}
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static void flush_list (int m, int n)
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{
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if (n == 0) return;
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if (m == 0)
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code_byte(STORELIST0);
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else
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if (m < 255)
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{
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code_byte(STORELIST);
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code_byte(m);
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}
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else
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{
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lua_error ("list constructor too long");
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err = 1;
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}
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code_byte(n);
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ntemp-=n;
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}
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static void incr_ntemp (void)
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{
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if (ntemp+nlocalvar+MAXVAR+1 < STACKGAP)
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ntemp++;
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else
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{
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lua_error ("stack overflow");
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err = 1;
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}
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}
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static void add_nlocalvar (int n)
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{
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if (ntemp+nlocalvar+MAXVAR+n < STACKGAP)
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nlocalvar += n;
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else
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{
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lua_error ("too many local variables or expression too complicate");
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err = 1;
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}
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}
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static void incr_nvarbuffer (void)
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{
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if (nvarbuffer < MAXVAR-1)
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nvarbuffer++;
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else
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{
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lua_error ("variable buffer overflow");
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err = 1;
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}
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}
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static void code_number (float f)
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{
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Word i = (Word)f;
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if (f == (float)i) /* f has an (short) integer value */
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{
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if (i <= 2) code_byte(PUSH0 + i);
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else if (i <= 255)
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{
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code_byte(PUSHBYTE);
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code_byte(i);
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}
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else
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{
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code_byte(PUSHWORD);
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code_word(i);
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}
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}
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else
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{
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code_byte(PUSHFLOAT);
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code_float(f);
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}
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incr_ntemp();
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}
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%}
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%union
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{
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int vInt;
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float vFloat;
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char *pChar;
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Word vWord;
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Long vLong;
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Byte *pByte;
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}
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%start functionlist
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%token WRONGTOKEN
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%token NIL
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%token IF THEN ELSE ELSEIF WHILE DO REPEAT UNTIL END
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%token RETURN
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%token LOCAL
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%token <vFloat> NUMBER
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%token <vWord> FUNCTION STRING
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%token <pChar> NAME
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%token <vInt> DEBUG
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%type <vLong> PrepJump
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%type <vInt> expr, exprlist, exprlist1, varlist1, typeconstructor
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%type <vInt> fieldlist, localdeclist
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%type <vInt> ffieldlist, ffieldlist1
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%type <vInt> lfieldlist, lfieldlist1
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%type <vLong> var, objectname
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%left AND OR
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%left '=' NE '>' '<' LE GE
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%left CONC
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%left '+' '-'
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%left '*' '/'
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%left UNARY NOT
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%% /* beginning of rules section */
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functionlist : /* empty */
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| functionlist
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{
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pc=maincode; basepc=initcode; maxcurr=maxmain;
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nlocalvar=0;
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}
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stat sc
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{
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maincode=pc; initcode=basepc; maxmain=maxcurr;
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}
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| functionlist function
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| functionlist setdebug
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;
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function : FUNCTION NAME
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{
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if (code == NULL) /* first function */
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{
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code = (Byte *) calloc(CODE_BLOCK, sizeof(Byte));
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if (code == NULL)
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{
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lua_error("not enough memory");
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err = 1;
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}
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maxcode = CODE_BLOCK;
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}
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pc=0; basepc=code; maxcurr=maxcode;
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nlocalvar=0;
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$<vWord>$ = lua_findsymbol($2);
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}
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'(' parlist ')'
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{
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if (lua_debug)
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{
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code_byte(SETFUNCTION);
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code_word(lua_nfile-1);
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code_word($<vWord>3);
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}
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lua_codeadjust (0);
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}
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block
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END
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{
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if (lua_debug) code_byte(RESET);
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code_byte(RETCODE); code_byte(nlocalvar);
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s_tag($<vWord>3) = T_FUNCTION;
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s_bvalue($<vWord>3) = calloc (pc, sizeof(Byte));
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if (s_bvalue($<vWord>3) == NULL)
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{
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lua_error("not enough memory");
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err = 1;
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}
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memcpy (s_bvalue($<vWord>3), basepc, pc*sizeof(Byte));
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code = basepc; maxcode=maxcurr;
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#if LISTING
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PrintCode(code,code+pc);
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#endif
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}
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;
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statlist : /* empty */
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| statlist stat sc
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;
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stat : {
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ntemp = 0;
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if (lua_debug)
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{
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code_byte(SETLINE); code_word(lua_linenumber);
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}
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}
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stat1
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sc : /* empty */ | ';' ;
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stat1 : IF expr1 THEN PrepJump block PrepJump elsepart END
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{
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{
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Long elseinit = $6+sizeof(Word)+1;
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if (pc - elseinit == 0) /* no else */
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{
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pc -= sizeof(Word)+1;
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elseinit = pc;
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}
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else
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{
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basepc[$6] = JMP;
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code_word_at(basepc+$6+1, pc - elseinit);
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}
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basepc[$4] = IFFJMP;
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code_word_at(basepc+$4+1,elseinit-($4+sizeof(Word)+1));
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}
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}
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| WHILE {$<vLong>$=pc;} expr1 DO PrepJump block PrepJump END
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{
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basepc[$5] = IFFJMP;
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code_word_at(basepc+$5+1, pc - ($5 + sizeof(Word)+1));
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basepc[$7] = UPJMP;
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code_word_at(basepc+$7+1, pc - ($<vLong>2));
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}
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| REPEAT {$<vLong>$=pc;} block UNTIL expr1 PrepJump
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{
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basepc[$6] = IFFUPJMP;
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code_word_at(basepc+$6+1, pc - ($<vLong>2));
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}
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| varlist1 '=' exprlist1
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{
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{
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int i;
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if ($3 == 0 || nvarbuffer != ntemp - $1 * 2)
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lua_codeadjust ($1 * 2 + nvarbuffer);
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for (i=nvarbuffer-1; i>=0; i--)
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lua_codestore (i);
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if ($1 > 1 || ($1 == 1 && varbuffer[0] != 0))
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lua_codeadjust (0);
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}
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}
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| functioncall { lua_codeadjust (0); }
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| typeconstructor { lua_codeadjust (0); }
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| LOCAL localdeclist decinit { add_nlocalvar($2); lua_codeadjust (0); }
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;
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elsepart : /* empty */
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| ELSE block
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| ELSEIF expr1 THEN PrepJump block PrepJump elsepart
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{
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{
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Long elseinit = $6+sizeof(Word)+1;
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if (pc - elseinit == 0) /* no else */
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{
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pc -= sizeof(Word)+1;
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elseinit = pc;
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}
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else
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{
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basepc[$6] = JMP;
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code_word_at(basepc+$6+1, pc - elseinit);
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}
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basepc[$4] = IFFJMP;
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code_word_at(basepc+$4+1, elseinit - ($4 + sizeof(Word)+1));
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}
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}
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;
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block : {$<vInt>$ = nlocalvar;} statlist {ntemp = 0;} ret
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{
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if (nlocalvar != $<vInt>1)
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{
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nlocalvar = $<vInt>1;
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lua_codeadjust (0);
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}
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}
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;
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ret : /* empty */
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| { if (lua_debug){code_byte(SETLINE);code_word(lua_linenumber);}}
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RETURN exprlist sc
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{
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if (lua_debug) code_byte(RESET);
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code_byte(RETCODE); code_byte(nlocalvar);
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}
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;
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PrepJump : /* empty */
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{
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$$ = pc;
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code_byte(0); /* open space */
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code_word (0);
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}
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expr1 : expr { if ($1 == 0) {lua_codeadjust (ntemp+1); incr_ntemp();}}
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;
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expr : '(' expr ')' { $$ = $2; }
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| expr1 '=' expr1 { code_byte(EQOP); $$ = 1; ntemp--;}
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| expr1 '<' expr1 { code_byte(LTOP); $$ = 1; ntemp--;}
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| expr1 '>' expr1 { code_byte(LEOP); code_byte(NOTOP); $$ = 1; ntemp--;}
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| expr1 NE expr1 { code_byte(EQOP); code_byte(NOTOP); $$ = 1; ntemp--;}
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| expr1 LE expr1 { code_byte(LEOP); $$ = 1; ntemp--;}
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| expr1 GE expr1 { code_byte(LTOP); code_byte(NOTOP); $$ = 1; ntemp--;}
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| expr1 '+' expr1 { code_byte(ADDOP); $$ = 1; ntemp--;}
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| expr1 '-' expr1 { code_byte(SUBOP); $$ = 1; ntemp--;}
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| expr1 '*' expr1 { code_byte(MULTOP); $$ = 1; ntemp--;}
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| expr1 '/' expr1 { code_byte(DIVOP); $$ = 1; ntemp--;}
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| expr1 CONC expr1 { code_byte(CONCOP); $$ = 1; ntemp--;}
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| '+' expr1 %prec UNARY { $$ = 1; }
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| '-' expr1 %prec UNARY { code_byte(MINUSOP); $$ = 1;}
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| typeconstructor { $$ = $1; }
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| '@' '(' dimension ')'
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{
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code_byte(CREATEARRAY);
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$$ = 1;
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}
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| var { lua_pushvar ($1); $$ = 1;}
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| NUMBER { code_number($1); $$ = 1; }
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| STRING
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{
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code_byte(PUSHSTRING);
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code_word($1);
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$$ = 1;
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incr_ntemp();
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}
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| NIL {code_byte(PUSHNIL); $$ = 1; incr_ntemp();}
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| functioncall
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{
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$$ = 0;
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if (lua_debug)
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{
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code_byte(SETLINE); code_word(lua_linenumber);
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}
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}
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| NOT expr1 { code_byte(NOTOP); $$ = 1;}
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| expr1 AND PrepJump {code_byte(POP); ntemp--;} expr1
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{
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basepc[$3] = ONFJMP;
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code_word_at(basepc+$3+1, pc - ($3 + sizeof(Word)+1));
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$$ = 1;
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}
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| expr1 OR PrepJump {code_byte(POP); ntemp--;} expr1
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{
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basepc[$3] = ONTJMP;
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code_word_at(basepc+$3+1, pc - ($3 + sizeof(Word)+1));
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$$ = 1;
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}
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;
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typeconstructor: '@'
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{
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code_byte(PUSHWORD);
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$<vLong>$ = pc; code_word(0);
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incr_ntemp();
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code_byte(CREATEARRAY);
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}
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objectname fieldlist
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{
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code_word_at(basepc+$<vLong>2, $4);
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if ($3 < 0) /* there is no function to be called */
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{
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$$ = 1;
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}
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else
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{
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lua_pushvar ($3+1);
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code_byte(PUSHMARK);
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incr_ntemp();
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code_byte(PUSHOBJECT);
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incr_ntemp();
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code_byte(CALLFUNC);
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ntemp -= 4;
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$$ = 0;
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if (lua_debug)
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{
|
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code_byte(SETLINE); code_word(lua_linenumber);
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}
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}
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}
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;
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dimension : /* empty */ { code_byte(PUSHNIL); incr_ntemp();}
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| expr1
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;
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functioncall : functionvalue {code_byte(PUSHMARK); $<vInt>$ = ntemp; incr_ntemp();}
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'(' exprlist ')' { code_byte(CALLFUNC); ntemp = $<vInt>2-1;}
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functionvalue : var {lua_pushvar ($1); }
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;
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exprlist : /* empty */ { $$ = 1; }
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| exprlist1 { $$ = $1; }
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;
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exprlist1 : expr { $$ = $1; }
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| exprlist1 ',' {if (!$1){lua_codeadjust (ntemp+1); incr_ntemp();}}
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expr {$$ = $4;}
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;
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parlist : /* empty */
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| parlist1
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;
|
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parlist1 : NAME
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{
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localvar[nlocalvar]=lua_findsymbol($1);
|
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add_nlocalvar(1);
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}
|
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| parlist1 ',' NAME
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{
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localvar[nlocalvar]=lua_findsymbol($3);
|
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add_nlocalvar(1);
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}
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;
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objectname : /* empty */ {$$=-1;}
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| NAME {$$=lua_findsymbol($1);}
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;
|
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fieldlist : '{' ffieldlist '}'
|
|
{
|
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flush_record($2%FIELDS_PER_FLUSH);
|
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$$ = $2;
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}
|
|
| '[' lfieldlist ']'
|
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{
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flush_list($2/FIELDS_PER_FLUSH, $2%FIELDS_PER_FLUSH);
|
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$$ = $2;
|
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}
|
|
;
|
|
|
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ffieldlist : /* empty */ { $$ = 0; }
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|
| ffieldlist1 { $$ = $1; }
|
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;
|
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|
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ffieldlist1 : ffield {$$=1;}
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|
| ffieldlist1 ',' ffield
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|
{
|
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$$=$1+1;
|
|
if ($$%FIELDS_PER_FLUSH == 0) flush_record(FIELDS_PER_FLUSH);
|
|
}
|
|
;
|
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ffield : NAME {$<vWord>$ = lua_findconstant($1);} '=' expr1
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|
{
|
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push_field($<vWord>2);
|
|
}
|
|
;
|
|
|
|
lfieldlist : /* empty */ { $$ = 0; }
|
|
| lfieldlist1 { $$ = $1; }
|
|
;
|
|
|
|
lfieldlist1 : expr1 {$$=1;}
|
|
| lfieldlist1 ',' expr1
|
|
{
|
|
$$=$1+1;
|
|
if ($$%FIELDS_PER_FLUSH == 0)
|
|
flush_list($$/FIELDS_PER_FLUSH - 1, FIELDS_PER_FLUSH);
|
|
}
|
|
;
|
|
|
|
varlist1 : var
|
|
{
|
|
nvarbuffer = 0;
|
|
varbuffer[nvarbuffer] = $1; incr_nvarbuffer();
|
|
$$ = ($1 == 0) ? 1 : 0;
|
|
}
|
|
| varlist1 ',' var
|
|
{
|
|
varbuffer[nvarbuffer] = $3; incr_nvarbuffer();
|
|
$$ = ($3 == 0) ? $1 + 1 : $1;
|
|
}
|
|
;
|
|
|
|
var : NAME
|
|
{
|
|
Word s = lua_findsymbol($1);
|
|
int local = lua_localname (s);
|
|
if (local == -1) /* global var */
|
|
$$ = s + 1; /* return positive value */
|
|
else
|
|
$$ = -(local+1); /* return negative value */
|
|
}
|
|
|
|
| var {lua_pushvar ($1);} '[' expr1 ']'
|
|
{
|
|
$$ = 0; /* indexed variable */
|
|
}
|
|
| var {lua_pushvar ($1);} '.' NAME
|
|
{
|
|
code_byte(PUSHSTRING);
|
|
code_word(lua_findconstant($4)); incr_ntemp();
|
|
$$ = 0; /* indexed variable */
|
|
}
|
|
;
|
|
|
|
localdeclist : NAME {localvar[nlocalvar]=lua_findsymbol($1); $$ = 1;}
|
|
| localdeclist ',' NAME
|
|
{
|
|
localvar[nlocalvar+$1]=lua_findsymbol($3);
|
|
$$ = $1+1;
|
|
}
|
|
;
|
|
|
|
decinit : /* empty */
|
|
| '=' exprlist1
|
|
;
|
|
|
|
setdebug : DEBUG {lua_debug = $1;}
|
|
|
|
%%
|
|
|
|
/*
|
|
** Search a local name and if find return its index. If do not find return -1
|
|
*/
|
|
static int lua_localname (Word n)
|
|
{
|
|
int i;
|
|
for (i=nlocalvar-1; i >= 0; i--)
|
|
if (n == localvar[i]) return i; /* local var */
|
|
return -1; /* global var */
|
|
}
|
|
|
|
/*
|
|
** Push a variable given a number. If number is positive, push global variable
|
|
** indexed by (number -1). If negative, push local indexed by ABS(number)-1.
|
|
** Otherwise, if zero, push indexed variable (record).
|
|
*/
|
|
static void lua_pushvar (long number)
|
|
{
|
|
if (number > 0) /* global var */
|
|
{
|
|
code_byte(PUSHGLOBAL);
|
|
code_word(number-1);
|
|
incr_ntemp();
|
|
}
|
|
else if (number < 0) /* local var */
|
|
{
|
|
number = (-number) - 1;
|
|
if (number < 10) code_byte(PUSHLOCAL0 + number);
|
|
else
|
|
{
|
|
code_byte(PUSHLOCAL);
|
|
code_byte(number);
|
|
}
|
|
incr_ntemp();
|
|
}
|
|
else
|
|
{
|
|
code_byte(PUSHINDEXED);
|
|
ntemp--;
|
|
}
|
|
}
|
|
|
|
static void lua_codeadjust (int n)
|
|
{
|
|
code_byte(ADJUST);
|
|
code_byte(n + nlocalvar);
|
|
}
|
|
|
|
static void lua_codestore (int i)
|
|
{
|
|
if (varbuffer[i] > 0) /* global var */
|
|
{
|
|
code_byte(STOREGLOBAL);
|
|
code_word(varbuffer[i]-1);
|
|
}
|
|
else if (varbuffer[i] < 0) /* local var */
|
|
{
|
|
int number = (-varbuffer[i]) - 1;
|
|
if (number < 10) code_byte(STORELOCAL0 + number);
|
|
else
|
|
{
|
|
code_byte(STORELOCAL);
|
|
code_byte(number);
|
|
}
|
|
}
|
|
else /* indexed var */
|
|
{
|
|
int j;
|
|
int upper=0; /* number of indexed variables upper */
|
|
int param; /* number of itens until indexed expression */
|
|
for (j=i+1; j <nvarbuffer; j++)
|
|
if (varbuffer[j] == 0) upper++;
|
|
param = upper*2 + i;
|
|
if (param == 0)
|
|
code_byte(STOREINDEXED0);
|
|
else
|
|
{
|
|
code_byte(STOREINDEXED);
|
|
code_byte(param);
|
|
}
|
|
}
|
|
}
|
|
|
|
void yyerror (char *s)
|
|
{
|
|
static char msg[256];
|
|
sprintf (msg,"%s near \"%s\" at line %d in file \"%s\"",
|
|
s, lua_lasttext (), lua_linenumber, lua_filename());
|
|
lua_error (msg);
|
|
err = 1;
|
|
}
|
|
|
|
int yywrap (void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
|
|
/*
|
|
** Parse LUA code and execute global statement.
|
|
** Return 0 on success or 1 on error.
|
|
*/
|
|
int lua_parse (void)
|
|
{
|
|
Byte *init = initcode = (Byte *) calloc(CODE_BLOCK, sizeof(Byte));
|
|
maincode = 0;
|
|
maxmain = CODE_BLOCK;
|
|
if (init == NULL)
|
|
{
|
|
lua_error("not enough memory");
|
|
return 1;
|
|
}
|
|
err = 0;
|
|
if (yyparse () || (err==1)) return 1;
|
|
initcode[maincode++] = HALT;
|
|
init = initcode;
|
|
#if LISTING
|
|
PrintCode(init,init+maincode);
|
|
#endif
|
|
if (lua_execute (init)) return 1;
|
|
free(init);
|
|
return 0;
|
|
}
|
|
|
|
|
|
#if LISTING
|
|
|
|
static void PrintCode (Byte *code, Byte *end)
|
|
{
|
|
Byte *p = code;
|
|
printf ("\n\nCODE\n");
|
|
while (p != end)
|
|
{
|
|
switch ((OpCode)*p)
|
|
{
|
|
case PUSHNIL: printf ("%d PUSHNIL\n", (p++)-code); break;
|
|
case PUSH0: case PUSH1: case PUSH2:
|
|
printf ("%d PUSH%c\n", p-code, *p-PUSH0+'0');
|
|
p++;
|
|
break;
|
|
case PUSHBYTE:
|
|
printf ("%d PUSHBYTE %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case PUSHWORD:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d PUSHWORD %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case PUSHFLOAT:
|
|
{
|
|
CodeFloat c;
|
|
int n = p-code;
|
|
p++;
|
|
get_float(c,p);
|
|
printf ("%d PUSHFLOAT %f\n", n, c.f);
|
|
}
|
|
break;
|
|
case PUSHSTRING:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d PUSHSTRING %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case PUSHLOCAL0: case PUSHLOCAL1: case PUSHLOCAL2: case PUSHLOCAL3:
|
|
case PUSHLOCAL4: case PUSHLOCAL5: case PUSHLOCAL6: case PUSHLOCAL7:
|
|
case PUSHLOCAL8: case PUSHLOCAL9:
|
|
printf ("%d PUSHLOCAL%c\n", p-code, *p-PUSHLOCAL0+'0');
|
|
p++;
|
|
break;
|
|
case PUSHLOCAL: printf ("%d PUSHLOCAL %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case PUSHGLOBAL:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d PUSHGLOBAL %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case PUSHINDEXED: printf ("%d PUSHINDEXED\n", (p++)-code); break;
|
|
case PUSHMARK: printf ("%d PUSHMARK\n", (p++)-code); break;
|
|
case PUSHOBJECT: printf ("%d PUSHOBJECT\n", (p++)-code); break;
|
|
case STORELOCAL0: case STORELOCAL1: case STORELOCAL2: case STORELOCAL3:
|
|
case STORELOCAL4: case STORELOCAL5: case STORELOCAL6: case STORELOCAL7:
|
|
case STORELOCAL8: case STORELOCAL9:
|
|
printf ("%d STORELOCAL%c\n", p-code, *p-STORELOCAL0+'0');
|
|
p++;
|
|
break;
|
|
case STORELOCAL:
|
|
printf ("%d STORELOCAL %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case STOREGLOBAL:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d STOREGLOBAL %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case STOREINDEXED0: printf ("%d STOREINDEXED0\n", (p++)-code); break;
|
|
case STOREINDEXED: printf ("%d STOREINDEXED %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case STORELIST0:
|
|
printf("%d STORELIST0 %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case STORELIST:
|
|
printf("%d STORELIST %d %d\n", p-code, *(p+1), *(p+2));
|
|
p+=3;
|
|
break;
|
|
case STORERECORD:
|
|
printf("%d STORERECORD %d\n", p-code, *(++p));
|
|
p += *p*sizeof(Word) + 1;
|
|
break;
|
|
case ADJUST:
|
|
printf ("%d ADJUST %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case CREATEARRAY: printf ("%d CREATEARRAY\n", (p++)-code); break;
|
|
case EQOP: printf ("%d EQOP\n", (p++)-code); break;
|
|
case LTOP: printf ("%d LTOP\n", (p++)-code); break;
|
|
case LEOP: printf ("%d LEOP\n", (p++)-code); break;
|
|
case ADDOP: printf ("%d ADDOP\n", (p++)-code); break;
|
|
case SUBOP: printf ("%d SUBOP\n", (p++)-code); break;
|
|
case MULTOP: printf ("%d MULTOP\n", (p++)-code); break;
|
|
case DIVOP: printf ("%d DIVOP\n", (p++)-code); break;
|
|
case CONCOP: printf ("%d CONCOP\n", (p++)-code); break;
|
|
case MINUSOP: printf ("%d MINUSOP\n", (p++)-code); break;
|
|
case NOTOP: printf ("%d NOTOP\n", (p++)-code); break;
|
|
case ONTJMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d ONTJMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case ONFJMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d ONFJMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case JMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d JMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case UPJMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d UPJMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case IFFJMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d IFFJMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case IFFUPJMP:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d IFFUPJMP %d\n", n, c.w);
|
|
}
|
|
break;
|
|
case POP: printf ("%d POP\n", (p++)-code); break;
|
|
case CALLFUNC: printf ("%d CALLFUNC\n", (p++)-code); break;
|
|
case RETCODE:
|
|
printf ("%d RETCODE %d\n", p-code, *(++p));
|
|
p++;
|
|
break;
|
|
case HALT: printf ("%d HALT\n", (p++)-code); break;
|
|
case SETFUNCTION:
|
|
{
|
|
CodeWord c1, c2;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c1,p);
|
|
get_word(c2,p);
|
|
printf ("%d SETFUNCTION %d %d\n", n, c1.w, c2.w);
|
|
}
|
|
break;
|
|
case SETLINE:
|
|
{
|
|
CodeWord c;
|
|
int n = p-code;
|
|
p++;
|
|
get_word(c,p);
|
|
printf ("%d SETLINE %d\n", n, c.w);
|
|
}
|
|
break;
|
|
|
|
case RESET: printf ("%d RESET\n", (p++)-code); break;
|
|
default: printf ("%d Cannot happen: code %d\n", (p++)-code, *(p-1)); break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|