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fteqw/engine/qclib/execloop16.h
Spoike 7c00f2b190 Initial Checkin 
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@18 fc73d0e0-1445-4013-8a0c-d673dee63da5
2004-08-23 01:38:21 +00:00

914 lines
22 KiB
C
Raw Blame History

//qc execution code.
//we have two conditions.
//one allows us to debug and trace through our code, the other doesn't.
//hopefully, the compiler will do a great job at optimising this code for us, where required.
//if it dosn't, then bum.
//the general overhead should be reduced significantly, and I would be supprised if it did run slower.
//run away loops are checked for ONLY on gotos and function calls. This might give a poorer check, but it will run faster overall.
//Appears to work fine.
#if INTSIZE == 16
#define cont cont16
#define reeval reeval16
#define st st16
#define pr_statements pr_statements16
#define fakeop fakeop16
#define dstatement_t dstatement16_t
#define sofs signed short
#define uofs unsigned short
#elif INTSIZE == 32
#define cont cont32
#define reeval reeval32
#define st st32
#define pr_statements pr_statements32
#define fakeop fakeop32
#define dstatement_t dstatement32_t
#define sofs signed int
#define uofs unsigned int
#elif INTSIZE == 24
#error INTSIZE should be set to 32.
#else
#error Bad cont size
#endif
//rely upon just st
{
#ifdef DEBUGABLE
cont: //last statement may have been a breakpoint
s = st-pr_statements;
s+=1;
s=ShowStep(progfuncs, s);
st = pr_statements + s;
reeval:
#else
st++;
#endif
switch (st->op)
{
case OP_ADD_F:
OPC->_float = OPA->_float + OPB->_float;
break;
case OP_ADD_V:
OPC->vector[0] = OPA->vector[0] + OPB->vector[0];
OPC->vector[1] = OPA->vector[1] + OPB->vector[1];
OPC->vector[2] = OPA->vector[2] + OPB->vector[2];
break;
case OP_SUB_F:
OPC->_float = OPA->_float - OPB->_float;
break;
case OP_SUB_V:
OPC->vector[0] = OPA->vector[0] - OPB->vector[0];
OPC->vector[1] = OPA->vector[1] - OPB->vector[1];
OPC->vector[2] = OPA->vector[2] - OPB->vector[2];
break;
case OP_MUL_F:
OPC->_float = OPA->_float * OPB->_float;
break;
case OP_MUL_V:
OPC->_float = OPA->vector[0]*OPB->vector[0]
+ OPA->vector[1]*OPB->vector[1]
+ OPA->vector[2]*OPB->vector[2];
break;
case OP_MUL_FV:
OPC->vector[0] = OPA->_float * OPB->vector[0];
OPC->vector[1] = OPA->_float * OPB->vector[1];
OPC->vector[2] = OPA->_float * OPB->vector[2];
break;
case OP_MUL_VF:
OPC->vector[0] = OPB->_float * OPA->vector[0];
OPC->vector[1] = OPB->_float * OPA->vector[1];
OPC->vector[2] = OPB->_float * OPA->vector[2];
break;
case OP_DIV_F:
OPC->_float = OPA->_float / OPB->_float;
break;
case OP_DIV_VF:
OPC->vector[0] = OPB->_float / OPA->vector[0];
OPC->vector[1] = OPB->_float / OPA->vector[1];
OPC->vector[2] = OPB->_float / OPA->vector[2];
break;
case OP_BITAND:
OPC->_float = (float)((int)OPA->_float & (int)OPB->_float);
break;
case OP_BITOR:
OPC->_float = (float)((int)OPA->_float | (int)OPB->_float);
break;
case OP_GE:
OPC->_float = (float)(OPA->_float >= OPB->_float);
break;
case OP_GE_I:
OPC->_int = (int)(OPA->_int >= OPB->_int);
break;
case OP_GE_IF:
OPC->_float = (float)(OPA->_int >= OPB->_float);
break;
case OP_GE_FI:
OPC->_float = (float)(OPA->_float >= OPB->_int);
break;
case OP_LE:
OPC->_float = (float)(OPA->_float <= OPB->_float);
break;
case OP_LE_I:
OPC->_int = (int)(OPA->_int <= OPB->_int);
break;
case OP_LE_IF:
OPC->_float = (float)(OPA->_int <= OPB->_float);
break;
case OP_LE_FI:
OPC->_float = (float)(OPA->_float <= OPB->_int);
break;
case OP_GT:
OPC->_float = (float)(OPA->_float > OPB->_float);
break;
case OP_GT_I:
OPC->_int = (int)(OPA->_int > OPB->_int);
break;
case OP_GT_IF:
OPC->_float = (float)(OPA->_int > OPB->_float);
break;
case OP_GT_FI:
OPC->_float = (float)(OPA->_float > OPB->_int);
break;
case OP_LT:
OPC->_float = (float)(OPA->_float < OPB->_float);
break;
case OP_LT_I:
OPC->_int = (int)(OPA->_int < OPB->_int);
break;
case OP_LT_IF:
OPC->_float = (float)(OPA->_int < OPB->_float);
break;
case OP_LT_FI:
OPC->_float = (float)(OPA->_float < OPB->_int);
break;
case OP_AND:
OPC->_float = (float)(OPA->_float && OPB->_float);
break;
case OP_OR:
OPC->_float = (float)(OPA->_float || OPB->_float);
break;
case OP_NOT_F:
OPC->_float = (float)(!OPA->_float);
break;
case OP_NOT_V:
OPC->_float = (float)(!OPA->vector[0] && !OPA->vector[1] && !OPA->vector[2]);
break;
case OP_NOT_S:
OPC->_float = (float)(!(OPA->string) || !*(OPA->string+progfuncs->stringtable));
break;
case OP_NOT_FNC:
OPC->_float = (float)(!(OPA->function & ~0xff000000));
break;
case OP_NOT_ENT:
OPC->_float = (float)(PROG_TO_EDICT(OPA->edict) == (edictrun_t *)sv_edicts);
break;
case OP_EQ_F:
OPC->_float = (float)(OPA->_float == OPB->_float);
break;
case OP_EQ_IF:
OPC->_float = (float)(OPA->_int == OPB->_float);
break;
case OP_EQ_FI:
OPC->_float = (float)(OPA->_float == OPB->_int);
break;
case OP_EQ_V:
OPC->_float = (float)((OPA->vector[0] == OPB->vector[0]) &&
(OPA->vector[1] == OPB->vector[1]) &&
(OPA->vector[2] == OPB->vector[2]));
break;
case OP_EQ_S:
if (OPA->string==OPB->string)
OPC->_float = true;
else if (!OPA->string)
{
if (!OPB->string || !*(OPB->string+progfuncs->stringtable))
OPC->_float = true;
else
OPC->_float = false;
}
else if (!OPB->string)
{
if (!OPA->string || !*(OPA->string+progfuncs->stringtable))
OPC->_float = true;
else
OPC->_float = false;
}
else
OPC->_float = (float)(!strcmp(OPA->string+progfuncs->stringtable,OPB->string+progfuncs->stringtable));
break;
case OP_EQ_E:
OPC->_float = (float)(OPA->_int == OPB->_int);
break;
case OP_EQ_FNC:
OPC->_float = (float)(OPA->function == OPB->function);
break;
case OP_NE_F:
OPC->_float = (float)(OPA->_float != OPB->_float);
break;
case OP_NE_V:
OPC->_float = (float)((OPA->vector[0] != OPB->vector[0]) ||
(OPA->vector[1] != OPB->vector[1]) ||
(OPA->vector[2] != OPB->vector[2]));
break;
case OP_NE_S:
if (OPA->string==OPB->string)
OPC->_float = false;
else if (!OPA->string)
{
if (!OPB->string || !*(OPB->string+progfuncs->stringtable))
OPC->_float = false;
else
OPC->_float = true;
}
else if (!OPB->string)
{
if (!OPA->string || !*(OPA->string+progfuncs->stringtable))
OPC->_float = false;
else
OPC->_float = true;
}
else
OPC->_float = (float)(strcmp(OPA->string+progfuncs->stringtable,OPB->string+progfuncs->stringtable));
break;
case OP_NE_E:
OPC->_float = (float)(OPA->_int != OPB->_int);
break;
case OP_NE_FNC:
OPC->_float = (float)(OPA->function != OPB->function);
break;
//==================
case OP_STORE_IF:
OPB->_float = (float)OPA->_int;
break;
case OP_STORE_FI:
OPB->_int = (int)OPA->_float;
break;
case OP_STORE_I:
OPB->_int = OPA->_int;
break;
case OP_STORE_F:
case OP_STORE_ENT:
case OP_STORE_FLD: // integers
case OP_STORE_S:
case OP_STORE_FNC: // pointers
OPB->_int = OPA->_int;
break;
case OP_STORE_V:
OPB->vector[0] = OPA->vector[0];
OPB->vector[1] = OPA->vector[1];
OPB->vector[2] = OPA->vector[2];
break;
//store a value to a pointer
case OP_STOREP_IF:
ptr = (eval_t *)(OPB->_int);
ptr->_float = (float)OPA->_int;
break;
case OP_STOREP_FI:
ptr = (eval_t *)(OPB->_int);
ptr->_int = (int)OPA->_float;
break;
case OP_STOREP_I:
ptr = (eval_t *)(OPB->_int);
ptr->_int = OPA->_int;
break;
case OP_STOREP_F:
case OP_STOREP_ENT:
case OP_STOREP_FLD: // integers
case OP_STOREP_S:
case OP_STOREP_FNC: // pointers
ptr = (eval_t *)(OPB->_int);
ptr->_int = OPA->_int;
break;
case OP_STOREP_V:
ptr = (eval_t *)(OPB->_int);
ptr->vector[0] = OPA->vector[0];
ptr->vector[1] = OPA->vector[1];
ptr->vector[2] = OPA->vector[2];
break;
case OP_STOREP_C: //store character in a string
ptr = (eval_t *)(OPB->_int);
*(unsigned char *)ptr = (char)OPA->_float;
break;
case OP_MULSTORE_F: // f *= f
OPB->_float *= OPA->_float;
break;
case OP_MULSTORE_V: // v *= f
OPB->vector[0] *= OPA->_float;
OPB->vector[1] *= OPA->_float;
OPB->vector[2] *= OPA->_float;
break;
case OP_MULSTOREP_F: // e.f *= f
ptr = (eval_t *)(OPB->_int);
OPC->_float = (ptr->_float *= OPA->_float);
break;
case OP_MULSTOREP_V: // e.v *= f
ptr = (eval_t *)(OPB->_int);
OPC->vector[0] = (ptr->vector[0] *= OPA->_float);
OPC->vector[0] = (ptr->vector[1] *= OPA->_float);
OPC->vector[0] = (ptr->vector[2] *= OPA->_float);
break;
case OP_DIVSTORE_F: // f /= f
OPB->_float /= OPA->_float;
break;
case OP_DIVSTOREP_F: // e.f /= f
ptr = (eval_t *)(OPB->_int);
OPC->_float = (ptr->_float /= OPA->_float);
break;
case OP_ADDSTORE_F: // f += f
OPB->_float += OPA->_float;
break;
case OP_ADDSTORE_V: // v += v
OPB->vector[0] += OPA->vector[0];
OPB->vector[1] += OPA->vector[1];
OPB->vector[2] += OPA->vector[2];
break;
case OP_ADDSTOREP_F: // e.f += f
ptr = (eval_t *)(OPB->_int);
OPC->_float = (ptr->_float += OPA->_float);
break;
case OP_ADDSTOREP_V: // e.v += v
ptr = (eval_t *)(OPB->_int);
OPC->vector[0] = (ptr->vector[0] += OPA->vector[0]);
OPC->vector[1] = (ptr->vector[1] += OPA->vector[1]);
OPC->vector[2] = (ptr->vector[2] += OPA->vector[2]);
break;
case OP_SUBSTORE_F: // f -= f
OPB->_float -= OPA->_float;
break;
case OP_SUBSTORE_V: // v -= v
OPB->vector[0] -= OPA->vector[0];
OPB->vector[1] -= OPA->vector[1];
OPB->vector[2] -= OPA->vector[2];
break;
case OP_SUBSTOREP_F: // e.f -= f
ptr = (eval_t *)(OPB->_int);
OPC->_float = (ptr->_float -= OPA->_float);
break;
case OP_SUBSTOREP_V: // e.v -= v
ptr = (eval_t *)(OPB->_int);
OPC->vector[0] = (ptr->vector[0] -= OPA->vector[0]);
OPC->vector[1] = (ptr->vector[1] -= OPA->vector[1]);
OPC->vector[2] = (ptr->vector[2] -= OPA->vector[2]);
break;
//get a pointer to a field var
case OP_ADDRESS:
ed = PROG_TO_EDICT(OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
if (ed->readonly)
PR_RunError (progfuncs, "assignment to read-only entity");
OPC->_int = (int)(((int *)edvars(ed)) + OPB->_int);
break;
//load a field to a value
case OP_LOAD_I:
case OP_LOAD_F:
case OP_LOAD_FLD:
case OP_LOAD_ENT:
case OP_LOAD_S:
case OP_LOAD_FNC:
ed = PROG_TO_EDICT(OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
ptr = (eval_t *)(((int *)edvars(ed)) + OPB->_int);
OPC->_int = ptr->_int;
break;
case OP_LOAD_V:
ed = PROG_TO_EDICT(OPA->edict);
#ifdef PARANOID
NUM_FOR_EDICT(ed); // make sure it's in range
#endif
ptr = (eval_t *)(((int *)edvars(ed)) + OPB->_int);
OPC->vector[0] = ptr->vector[0];
OPC->vector[1] = ptr->vector[1];
OPC->vector[2] = ptr->vector[2];
break;
//==================
case OP_IFNOTS:
RUNAWAYCHECK();
if (!OPA->string || !*OPA->string)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IFNOT:
RUNAWAYCHECK();
if (!OPA->_int)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IFS:
RUNAWAYCHECK();
if (OPA->string && *OPA->string)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_IF:
RUNAWAYCHECK();
if (OPA->_int)
st += (sofs)st->b - 1; // offset the s++
break;
case OP_GOTO:
RUNAWAYCHECK();
st += (sofs)st->a - 1; // offset the s++
break;
case OP_CALL8H:
case OP_CALL7H:
case OP_CALL6H:
case OP_CALL5H:
case OP_CALL4H:
case OP_CALL3H:
case OP_CALL2H:
G_VECTOR(OFS_PARM1)[0] = OPC->vector[0];
G_VECTOR(OFS_PARM1)[1] = OPC->vector[1];
G_VECTOR(OFS_PARM1)[2] = OPC->vector[2];
case OP_CALL1H:
G_VECTOR(OFS_PARM0)[0] = OPB->vector[0];
G_VECTOR(OFS_PARM0)[1] = OPB->vector[1];
G_VECTOR(OFS_PARM0)[2] = OPB->vector[2];
case OP_CALL8:
case OP_CALL7:
case OP_CALL6:
case OP_CALL5:
case OP_CALL4:
case OP_CALL3:
case OP_CALL2:
case OP_CALL1:
case OP_CALL0:
RUNAWAYCHECK();
pr_xstatement = st-pr_statements;
if (st->op > OP_CALL8)
pr_argc = st->op - (OP_CALL1H-1);
else
pr_argc = st->op - OP_CALL0;
fnum = OPA->function;
if ((fnum & ~0xff000000)<=0)
{
pr_trace++;
printf("NULL function from qc.\n");
#ifndef DEBUGABLE
goto cont;
#endif
break;
}
p=pr_typecurrent;
//about to switch. needs caching.
//if it's an external call, switch now (before any function pointers are used)
PR_MoveParms(progfuncs, (fnum & 0xff000000)>>24, p);
PR_SwitchProgs(progfuncs, (fnum & 0xff000000)>>24);
newf = &pr_functions[fnum & ~0xff000000];
if (newf->first_statement < 0)
{ // negative statements are built in functions
i = -newf->first_statement;
// p = pr_typecurrent;
if (i < externs->numglobalbuiltins)
{
(*externs->globalbuiltins[i]) (progfuncs, (struct globalvars_s *)current_progstate->globals);
if (prinst->continuestatement!=-1)
{
st=&pr_statements[prinst->continuestatement];
prinst->continuestatement=-1;
break;
}
}
else
{
i -= externs->numglobalbuiltins;
if (i > current_progstate->numbuiltins)
{
if (newf->first_statement == -0x7fffffff)
((builtin_t)newf->profile) (progfuncs, (struct globalvars_s *)current_progstate->globals);
else
PR_RunError (progfuncs, "Bad builtin call number");
}
else
current_progstate->builtins [i] (progfuncs, (struct globalvars_s *)current_progstate->globals);
}
PR_MoveParms(progfuncs, p, pr_typecurrent);
// memcpy(&pr_progstate[p].globals[OFS_RETURN], &current_progstate->globals[OFS_RETURN], sizeof(vec3_t));
PR_SwitchProgs(progfuncs, (progsnum_t)p);
//#ifndef DEBUGABLE //decide weather non debugger wants to start debugging.
s = st-pr_statements;
goto restart;
//#endif
// break;
}
// PR_MoveParms((OPA->function & 0xff000000)>>24, pr_typecurrent);
// PR_SwitchProgs((OPA->function & 0xff000000)>>24);
s = PR_EnterFunction (progfuncs, newf, p);
st = &pr_statements[s];
goto restart;
// break;
case OP_DONE:
case OP_RETURN:
RUNAWAYCHECK();
pr_globals[OFS_RETURN] = pr_globals[st->a];
pr_globals[OFS_RETURN+1] = pr_globals[st->a+1];
pr_globals[OFS_RETURN+2] = pr_globals[st->a+2];
s = PR_LeaveFunction (progfuncs);
st = &pr_statements[s];
if (pr_depth == exitdepth)
{
PR_MoveParms(progfuncs, initial_progs, pr_typecurrent);
PR_SwitchProgs(progfuncs, initial_progs);
return; // all done
}
goto restart;
// break;
case OP_STATE:
externs->stateop(progfuncs, OPA->_float, OPB->function);
break;
case OP_ADD_I:
OPC->_int = OPA->_int + OPB->_int;
break;
case OP_ADD_FI:
OPC->_float = OPA->_float + (float)OPB->_int;
break;
case OP_ADD_IF:
OPC->_float = (float)OPA->_int + OPB->_float;
break;
case OP_SUB_I:
OPC->_int = OPA->_int - OPB->_int;
break;
case OP_SUB_FI:
OPC->_float = OPA->_float - (float)OPB->_int;
break;
case OP_SUB_IF:
OPC->_float = (float)OPA->_int - OPB->_float;
break;
case OP_C_ITOF:
OPC->_float = (float)OPA->_int;
break;
case OP_C_FTOI:
OPC->_int = (int)OPA->_float;
break;
case OP_CP_ITOF:
ptr = (eval_t *)(((qbyte *)sv_edicts) + OPA->_int);
OPC->_float = (float)ptr->_int;
break;
case OP_CP_FTOI:
ptr = (eval_t *)(((qbyte *)sv_edicts) + OPA->_int);
OPC->_int = (int)ptr->_float;
break;
case OP_BITAND_I:
OPC->_int = (OPA->_int & OPB->_int);
break;
case OP_BITOR_I:
OPC->_int = (OPA->_int | OPB->_int);
break;
case OP_MUL_I:
OPC->_int = OPA->_int * OPB->_int;
break;
case OP_DIV_I:
if (OPB->_int == 0) //no division by zero allowed...
OPC->_int = 0;
else
OPC->_int = OPA->_int / OPB->_int;
break;
case OP_EQ_I:
OPC->_int = (OPA->_int == OPB->_int);
break;
case OP_NE_I:
OPC->_int = (OPA->_int != OPB->_int);
break;
//array/structure reading/riting.
case OP_GLOBALADDRESS:
OPC->_int = (int)(&((int)(OPA->_int)) + OPB->_int);
break;
case OP_POINTER_ADD: //pointer to 32 bit (remember to *3 for vectors)
OPC->_int = OPA->_int + OPB->_int*4;
break;
case OP_LOADA_I:
case OP_LOADA_F:
case OP_LOADA_FLD:
case OP_LOADA_ENT:
case OP_LOADA_S:
case OP_LOADA_FNC:
ptr = (eval_t *)(&((int)(OPA->_int)) + OPB->_int);
OPC->_int = ptr->_int;
break;
case OP_LOADA_V:
ptr = (eval_t *)(&((int)(OPA->_int)) + OPB->_int);
OPC->vector[0] = ptr->vector[0];
OPC->vector[1] = ptr->vector[1];
OPC->vector[2] = ptr->vector[2];
break;
case OP_ADD_SF: //(char*)c = (char*)a + (float)b
OPC->_int = OPA->_int + (int)OPB->_float;
break;
case OP_SUB_S: //(float)c = (char*)a - (char*)b
OPC->_int = OPA->_int - OPB->_int;
break;
case OP_LOADP_C: //load character from a string
ptr = (eval_t *)(((int)(OPA->_int)) + (int)OPB->_float);
OPC->_float = *(unsigned char *)ptr;
break;
case OP_LOADP_I:
case OP_LOADP_F:
case OP_LOADP_FLD:
case OP_LOADP_ENT:
case OP_LOADP_S:
case OP_LOADP_FNC:
#ifdef PRBOUNDSCHECK
if (OPB->_int < 0 || OPB->_int >= pr_edict_size/4)
{
Host_Error("Progs attempted to read an invalid field in an edict (%i)\n", OPB->_int);
return;
}
#endif
ptr = (eval_t *)(((int)(OPA->_int)) + OPB->_int);
OPC->_int = ptr->_int;
break;
case OP_LOADP_V:
#ifdef PRBOUNDSCHECK
if (OPB->_int < 0 || OPB->_int + 2 >= pr_edict_size/4)
{
Host_Error("Progs attempted to read an invalid field in an edict (%i)\n", OPB->_int);
return;
}
#endif
ptr = (eval_t *)(((int)(OPA->_int)) + OPB->_int);
OPC->vector[0] = ptr->vector[0];
OPC->vector[1] = ptr->vector[1];
OPC->vector[2] = ptr->vector[2];
break;
case OP_POWER_I:
OPC->_int = OPA->_int ^ OPB->_int;
break;
case OP_RSHIFT_I:
OPC->_int = OPA->_int >> OPB->_int;
break;
case OP_LSHIFT_I:
OPC->_int = OPA->_int << OPB->_int;
break;
case OP_FETCH_GBL_F:
case OP_FETCH_GBL_S:
case OP_FETCH_GBL_E:
case OP_FETCH_GBL_FNC:
i = (int)OPB->_float;
if(i < 0 || i > G_INT((uofs)st->a - 1))
{
PR_RunError(progfuncs, "array index out of bounds: %s[%d]", PR_GlobalStringNoContents(progfuncs, st->a), i);
}
t = (eval_t *)&pr_globals[(uofs)st->a + i];
OPC->_int = t->_int;
break;
case OP_FETCH_GBL_V:
i = (int)OPB->_float;
if(i < 0 || i > G_INT((uofs)st->a - 1))
{
PR_RunError(progfuncs, "array index out of bounds: %s[%d]", PR_GlobalStringNoContents(progfuncs, st->a), i);
}
t = (eval_t *)&pr_globals[(uofs)st->a
+((int)OPB->_float)*3];
OPC->vector[0] = t->vector[0];
OPC->vector[1] = t->vector[1];
OPC->vector[2] = t->vector[2];
break;
case OP_CSTATE:
externs->cstateop(progfuncs, OPA->_float, OPB->_float, fnum);
break;
case OP_CWSTATE:
externs->cwstateop(progfuncs, OPA->_float, OPB->_float, fnum);
break;
case OP_THINKTIME:
externs->thinktimeop(progfuncs, (struct edict_s *)PROG_TO_EDICT(OPA->edict), OPB->_float);
break;
case OP_BITSET: // b (+) a
OPB->_float = (float)((int)OPB->_float | (int)OPA->_float);
break;
case OP_BITSETP: // .b (+) a
ptr = (eval_t *)(OPB->_int);
ptr->_float = (float)((int)ptr->_float | (int)OPA->_float);
break;
case OP_BITCLR: // b (-) a
OPB->_float = (float)((int)OPB->_float & ~((int)OPA->_float));
break;
case OP_BITCLRP: // .b (-) a
ptr = (eval_t *)(OPB->_int);
ptr->_float = (float)((int)ptr->_float & ~((int)OPA->_float));
break;
case OP_RAND0:
G_FLOAT(OFS_RETURN) = (rand()&0x7fff)/((float)0x7fff);
break;
case OP_RAND1:
G_FLOAT(OFS_RETURN) = (rand()&0x7fff)/((float)0x7fff)*OPA->_float;
break;
case OP_RAND2:
if(OPA->_float < OPB->_float)
{
G_FLOAT(OFS_RETURN) = OPA->_float+((rand()&0x7fff)/((float)0x7fff)
*(OPB->_float-OPA->_float));
}
else
{
G_FLOAT(OFS_RETURN) = OPB->_float+((rand()&0x7fff)/((float)0x7fff)
*(OPA->_float-OPB->_float));
}
break;
case OP_RANDV0:
G_FLOAT(OFS_RETURN+0) = (rand()&0x7fff)/((float)0x7fff);
G_FLOAT(OFS_RETURN+1) = (rand()&0x7fff)/((float)0x7fff);
G_FLOAT(OFS_RETURN+2) = (rand()&0x7fff)/((float)0x7fff);
break;
case OP_RANDV1:
G_FLOAT(OFS_RETURN+0) = (rand()&0x7fff)/((float)0x7fff)*OPA->vector[0];
G_FLOAT(OFS_RETURN+1) = (rand()&0x7fff)/((float)0x7fff)*OPA->vector[1];
G_FLOAT(OFS_RETURN+2) = (rand()&0x7fff)/((float)0x7fff)*OPA->vector[2];
break;
case OP_RANDV2:
for(i = 0; i < 3; i++)
{
if(OPA->vector[i] < OPB->vector[i])
{
G_FLOAT(OFS_RETURN+i) = OPA->vector[i]+((rand()&0x7fff)/((float)0x7fff)
*(OPB->vector[i]-OPA->vector[i]));
}
else
{
G_FLOAT(OFS_RETURN+i) = OPB->vector[i]+(rand()*(1.0f/RAND_MAX)
*(OPA->vector[i]-OPB->vector[i]));
}
}
break;
case OP_SWITCH_F:
case OP_SWITCH_V:
case OP_SWITCH_S:
case OP_SWITCH_E:
case OP_SWITCH_FNC:
swtch = OPA;
swtchtype = st->op;
RUNAWAYCHECK();
st += (sofs)st->b - 1; // offset the st++
break;
case OP_CASE:
switch(swtchtype)
{
case OP_SWITCH_F:
if (swtch->_float == OPA->_float)
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
break;
case OP_SWITCH_E:
case OP_SWITCH_FNC:
if (swtch->_int == OPA->_int)
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
break;
case OP_SWITCH_S:
if (swtch->_int == OPA->_int)
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
if ((!swtch->_int && progfuncs->stringtable[OPA->string]) || (!OPA->_int && progfuncs->stringtable[swtch->string])) //one is null (cannot be not both).
break;
if (!strcmp(progfuncs->stringtable+swtch->string, progfuncs->stringtable+OPA->string))
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
break;
case OP_SWITCH_V:
if (swtch->vector[0] == OPA->vector[0] && swtch->vector[1] == OPA->vector[1] && swtch->vector[2] == OPA->vector[2])
{
RUNAWAYCHECK();
st += (sofs)st->b-1; // -1 to offset the s++
}
break;
default:
PR_RunError (progfuncs, "OP_CASE with bad/missing OP_SWITCH %i", swtchtype);
break;
}
break;
case OP_CASERANGE:
switch(swtchtype)
{
case OP_SWITCH_F:
if (swtch->_float >= OPA->_float && swtch->_float <= OPB->_float)
{
RUNAWAYCHECK();
st += (sofs)st->c-1; // -1 to offset the s++
}
break;
default:
PR_RunError (progfuncs, "OP_CASERANGE with bad/missing OP_SWITCH %i", swtchtype);
}
break;
default:
if (st->op & 0x8000) //break point!
{
pr_xstatement = s = st-pr_statements;
printf("Break point hit.\n");
if (pr_trace<1)
pr_trace=1; //this is what it's for
s = ShowStep(progfuncs, s);
st = &pr_statements[s]; //let the user move execution
pr_xstatement = s = st-pr_statements;
memcpy(&fakeop, st, sizeof(dstatement_t)); //don't hit the new statement as a break point, cos it's probably the same one.
fakeop.op &= ~0x8000;
st = &fakeop; //a little remapping...
goto reeval; //reexecute
}
pr_xstatement = st-pr_statements;
PR_RunError (progfuncs, "Bad opcode %i", st->op);
}
}
#undef cont
#undef reeval
#undef st
#undef pr_statements
#undef fakeop
#undef dstatement_t
#undef sofs
#undef uofs
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