void execute_tablegetelem(instruction* instr){
//printf("exec_tableget\n");
avm_memcell* lv = avm_translate_operand(&instr->result,(avm_memcell*) 0);
avm_memcell* t = avm_translate_operand(&instr->arg1,(avm_memcell*) 0);
avm_memcell* i = avm_translate_operand(&instr->arg2,&ax);
assert(lv && (&stack[AVM_STACKSIZE-1] >= lv && lv > &stack[top] || lv == &retval));
assert(t && &stack[AVM_STACKSIZE-1] >= t && t > &stack[top]);
assert(i);
avm_memcellclear(lv);
lv->type = nil_m;
if(t->type != table_m){
avm_error("illigal use of type as table!");
}
else{
avm_memcell* content = avm_tablegetelem(t->data.tableVal,i);
if(content)
avm_assign(lv,content);
else{
char* ts = avm_tostring(t);
char* is = avm_tostring(i);
avm_warning("not found!");
free(ts);
free(is);
}
}
}
void execute_tablegetelem (instruction* instr){
avm_memcell* lv = avm_translate_operand(&instr->result, (avm_memcell*) 0);
avm_memcell* t = avm_translate_operand(&instr->arg1, (avm_memcell*) 0);
avm_memcell* i = avm_translate_operand(&instr->result, &ax);
// assert(lv && &stack[N-1] >= lv && lv > &stack[top] || lv == &retval);
// assert(t && stack[N-1] >= t && t > &stack[top]);
assert(i);
avm_memcellclear(lv);
lv->type = nil_m;
if(t->type != table_m)
{
avm_error("illegal use of type %s as table!\n", typeStrings[t->type]);
executionFinished = 1;
}
else
{
avm_memcell* content = avm_tablegetelem(t->data.tableVal, i);
if(content)
{
avm_assign(lv, content);
}
else
{
char* ts = avm_tostring(t);
char* is = avm_tostring(i);
avm_warning("%s[%s] not found!\n", ts, is);
free(ts);
free(is);
}
}
}
void execute_tablesetelem(instruction* instr){
//printf("exec_tableset\n");
avm_memcell* t = avm_translate_operand(&instr->arg1,(avm_memcell*) 0);
avm_memcell* i = avm_translate_operand(&instr->arg2,&ax);
avm_memcell* c = avm_translate_operand(&instr->result,&bx);
assert(t && &stack[AVM_STACKSIZE-1] >= t && t > &stack[top]);
assert(i && c);
if(t->type != table_m)
avm_error("illigal use of type as table!");
else
avm_tablesetelem(t->data.tableVal, i, c);
}
void execute_call (instruction* instr){
avm_memcell* func = avm_translate_operand(&instr->result, &ax);
assert(func);
avm_callsaveenvironment();
char* s;
switch(func->type)
{
case userfunc_m:
pc = func->data.funcVal;
assert(pc < AVM_ENDING_PC);
assert(code[pc].opcode == funcenter_v);
break;
case string_m:
avm_calllibfunc(func->data.strVal);
break;
case libfunc_m:
avm_calllibfunc(func->data.libfuncVal);
break;
default:
s = avm_tostring(func);
avm_error("call: can not bind '%s' to function!\n", s);
free(s);
executionFinished = 1;
}
}
void execute_call(instruction* instr){
//printf("exec_call\n");
avm_memcell* func = avm_translate_operand(&instr->result, &ax);
assert(func);
avm_callsaveenviroment();
switch (func->type){
case userfunc_m: {
pc = func->data.funcVal;
assert(pc < AVM_ENDING_PC);
assert(instr[pc].opcode = funcenter_v);
break;
}
case string_m: {
avm_calllibfunc(func->data.strVal);
break;
}
case libfunc_m: {
avm_calllibfunc(func->data.strVal);
break;
}
default: {
char *s = (char*) malloc(sizeof(char));
s = avm_tostring(func);
avm_error("call: cannot bind '%s' to function!");
free(s);
executionFinished = 1;
}
}
}
void execute_pusharg(instruction* instr){
//printf("exec_pusharg\n");
avm_memcell* arg = avm_translate_operand(&instr->result, &ax);
assert(arg);
avm_assign(&stack[top], arg);
++totalActuals;
avm_dec_top();
}
void execute_tablesetelem (instruction* instr){
avm_memcell* t = avm_translate_operand(&instr->result, (avm_memcell*) 0);
avm_memcell* i = avm_translate_operand(&instr->arg1, &ax);
avm_memcell* c = avm_translate_operand(&instr->arg2, &bx);
// assert(t && &stack[N-1] >= t && t > &stack[top]);
assert(i && c);
if(t->type != table_m)
{
avm_error("illegal use of type %s as table!\n", typeStrings[t->type]);
executionFinished = 1;
}
else
{
avm_tablesetelem(t->data.tableVal, i, c);
}
}
void execute_newtable(instruction* instr){
//printf("exec_newtable\n");
avm_memcell* lv = avm_translate_operand(&instr->result,(avm_memcell*) 0);
assert(lv && (&stack[AVM_STACKSIZE-1] >= lv && lv > &stack[top] || lv == &retval));
avm_memcellclear(lv);
lv->type = table_m;
lv->data.tableVal = avm_tablenew();
avm_tableincrefcounter(lv->data.tableVal);
}
void execute_funcenter (instruction* instr){
avm_memcell* func = avm_translate_operand(&instr->result, &ax);
assert(func);
assert(pc == func->data.funcVal);
totalActuals = 0;
userfunc* funcInfo = avm_getfuncinfo(pc);
topsp = top;
top = top - funcInfo->localSize;
}
void execute_arithmetic (instruction* instr) {
avm_memcell* lv = avm_translate_operand(instr->result,(avm_memcell*)0);
avm_memcell* rv1= avm_translate_operand(instr->arg1,&ax);
avm_memcell* rv2= avm_translate_operand(instr->arg2,&bx);
assert(lv && ( (&stack[AVM_STACKSIZE]>= lv && &stack[top]<lv )|| lv==&retval ));
assert(rv1 && rv2);
if (rv1->type !=number_m || rv2->type !=number_m ) {
avm_error("not a number arithmetic!\n");
executionFinished=1;
}
else {
arithmetic_func_t op=arithmeticFuncs[instr->opcode - add_v];
avm_memcellclear(lv);
lv->type = number_m;
lv->data.numVal = (*op)(rv1->data.numVal,rv2->data.numVal);
}
//printf("DEBUG VALUE:%d\n",(int)lv->data.numVal);
}
void execute_pusharg(instruction * instr){
assert(instr->result);
avm_memcell *arg = avm_translate_operand(instr->result,&ax);
assert(arg);
avm_assign(&stack[top], arg);
++totalActuals;
avm_dec_top();
return;
}
void execute_jne (instruction* instr){
assert(instr->result.type == label_a);
avm_memcell* rv1 = avm_translate_operand(&instr->arg1, &ax);
avm_memcell* rv2 = avm_translate_operand(&instr->arg2, &bx);
unsigned char result = 0;
if(rv1->type == undef_m){
rv1->type=number_m;
}
if(rv2->type == undef_m){
rv1->type=number_m;
}
if((rv1->type == undef_m)||(rv2->type == undef_m))
{
avm_error("'undef' involved in equality!\n");
executionFinished = 1;
}
else if((rv1->type == nil_m)||(rv2->type == nil_m))
{
result = (rv1->type == nil_m) && (rv2->type == nil_m);
}
else if((rv1->type == bool_m)||(rv2->type == bool_m))
{
result = (avm_tobool(rv1) == avm_tobool(rv2));
}
else if(rv1->type != rv2->type)
{
avm_error("%s == %s is illegal!\n", typeStrings[rv1->type], typeStrings[rv2->type]);
executionFinished = 1;
}
else if(rv1->type == number_m)
{
if(rv1->data.numVal != rv2->data.numVal)
{
result = 1;
}
}
else if(rv1->type == string_m)
{
if(strcmp(rv1->data.strVal, rv2->data.strVal) != 0)
{
result = 1;
}
}
else if(rv1->type == table_m)
{
if(rv1->data.tableVal->total != rv2->data.tableVal->total)
{
result = 1;
}
}
else if(rv1->type == userfunc_m)
{
// ?
}
else if(rv1->type == libfunc_m)
{
// ?
}
if(!executionFinished && result)
{
pc = instr->result.val;
}
}