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/*
** print.c
** print bytecodes
*/
char* rcs_print="$Id: print.c,v 1.6 1996/03/12 20:00:24 lhf Exp $";
#include <stdio.h>
#include <string.h>
#include "luac.h"
#include "print.h"
static LocVar* V=NULL;
static char* LocStr(int i)
{
if (V==NULL) return ""; else return V[i].varname->str;
}
static void PrintCode(Byte* code, Byte* end)
{
Byte* p;
for (p=code; p!=end;)
{
OpCode op=(OpCode)*p;
if (op>SETLINE) op=SETLINE+1;
printf("%6d\t%s",p-code,OpCodeName[op]);
switch (op)
{
case PUSHNIL:
case PUSH0:
case PUSH1:
case PUSH2:
case PUSHINDEXED:
case STOREINDEXED0:
case ADJUST0:
case EQOP:
case LTOP:
case LEOP:
case GTOP:
case GEOP:
case ADDOP:
case SUBOP:
case MULTOP:
case DIVOP:
case POWOP:
case CONCOP:
case MINUSOP:
case NOTOP:
case POP:
case RETCODE0:
p++;
break;
case PUSHLOCAL0:
case PUSHLOCAL1:
case PUSHLOCAL2:
case PUSHLOCAL3:
case PUSHLOCAL4:
case PUSHLOCAL5:
case PUSHLOCAL6:
case PUSHLOCAL7:
case PUSHLOCAL8:
case PUSHLOCAL9:
{
int i=op-PUSHLOCAL0;
printf("\t%d\t; %s",i,LocStr(i));
p++;
break;
}
case STORELOCAL0:
case STORELOCAL1:
case STORELOCAL2:
case STORELOCAL3:
case STORELOCAL4:
case STORELOCAL5:
case STORELOCAL6:
case STORELOCAL7:
case STORELOCAL8:
case STORELOCAL9:
{
int i=op-STORELOCAL0;
printf("\t%d\t; %s",i,LocStr(i));
p++;
break;
}
case PUSHLOCAL:
case STORELOCAL:
{
int i=*(p+1);
printf("\t%d\t; %s",i,LocStr(i));
p+=2;
break;
}
case PUSHBYTE:
case STOREINDEXED:
case STORELIST0:
case ADJUST:
case RETCODE:
printf("\t%d",*(p+1));
p+=2;
break;
case PUSHWORD:
case CREATEARRAY:
case ONTJMP:
case ONFJMP:
case JMP:
case UPJMP:
case IFFJMP:
case IFFUPJMP:
case SETLINE:
{
CodeWord c;
p++;
get_word(c,p);
printf("\t%d",c.w);
break;
}
case PUSHFLOAT:
{
CodeFloat c;
p++;
get_float(c,p);
printf("\t%g",c.f);
break;
}
case PUSHSELF:
case PUSHSTRING:
{
CodeWord c;
p++;
get_word(c,p);
printf("\t%d\t; \"%s\"",c.w,StrStr(c.w));
break;
}
case PUSHFUNCTION:
{
CodeCode c;
p++;
get_code(c,p);
printf("\t%p\t; \"%s\":%d",c.tf,c.tf->fileName,c.tf->lineDefined);
break;
}
case PUSHGLOBAL:
case STOREGLOBAL:
{
CodeWord c;
p++;
get_word(c,p);
printf("\t%d\t; %s",c.w,VarStr(c.w));
break;
}
case STORELIST:
case CALLFUNC:
printf("\t%d %d",*(p+1),*(p+2));
p+=3;
break;
case STORERECORD:
{
int n=*++p;
printf("\t%d",n);
p++;
while (n--)
{
CodeWord c;
printf("\n%6d\t FIELD",p-code);
get_word(c,p);
printf("\t%d\t; \"%s\"",c.w,StrStr(c.w));
}
break;
}
default:
printf("\tcannot happen: opcode=%d",*p);
exit(1);
break;
}
printf("\n");
}
}
void PrintFunction(TFunc* tf)
{
if (IsMain(tf))
printf("\nmain of \"%s\" (%d bytes at %p)\n",tf->fileName,tf->size,tf);
else
printf("\nfunction \"%s\":%d (%d bytes at %p); used at main+%d\n",
tf->fileName,tf->lineDefined,tf->size,tf,tf->marked);
V=tf->locvars;
PrintCode(tf->code,tf->code+tf->size);
}
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