int buzzvm_swarm_exec(buzzvm_t vm) {
buzzvm_lnum_assert(vm, 1);
/* Get the id */
buzzvm_lload(vm, 0);
buzzvm_pushs(vm, buzzvm_string_register(vm, "id"));
buzzvm_tget(vm);
uint16_t id = buzzvm_stack_at(vm, 1)->i.value;
/* Get the swarm entry */
uint8_t* x = buzzdict_get(vm->swarms, &id, uint8_t);
if(!x) {
vm->state = BUZZVM_STATE_ERROR;
vm->error = BUZZVM_ERROR_SWARM;
return BUZZVM_STATE_ERROR;
}
/* Check whether the robot is in the swarm */
if(*x) {
/* Get the closure */
buzzvm_lload(vm, 1);
buzzvm_type_assert(vm, 1, BUZZTYPE_CLOSURE);
buzzobj_t c = buzzvm_stack_at(vm, 1);
/* Get rid of the current call structure */
if(buzzvm_ret0(vm) != BUZZVM_STATE_READY) return vm->state;
/* Save the current stack depth */
uint32_t stacks = buzzdarray_size(vm->stacks);
/* Push the current swarm in the stack */
buzzdarray_push(vm->swarmstack, &id);
/* Call the closure */
buzzvm_push(vm, c);
int32_t numargs = 0;
buzzvm_pushi(vm, numargs);
buzzvm_calls(vm);
do if(buzzvm_step(vm) != BUZZVM_STATE_READY) return vm->state;
while(stacks < buzzdarray_size(vm->stacks));
return vm->state;
}
else {
/* Get rid of the current call structure */
return buzzvm_ret0(vm);
}
}
buzzvm_state buzzvm_step(buzzvm_t vm) {
/* buzzvm_dump(vm); */
/* Can't execute if not ready */
if(vm->state != BUZZVM_STATE_READY) return vm->state;
/* Execute GC */
buzzheap_gc(vm);
/* Fetch instruction and (potential) argument */
uint8_t instr = vm->bcode[vm->pc];
/* Execute instruction */
switch(instr) {
case BUZZVM_INSTR_NOP: {
inc_pc();
break;
}
case BUZZVM_INSTR_DONE: {
buzzvm_done(vm);
break;
}
case BUZZVM_INSTR_PUSHNIL: {
inc_pc();
buzzvm_pushnil(vm);
break;
}
case BUZZVM_INSTR_DUP: {
inc_pc();
buzzvm_dup(vm);
break;
}
case BUZZVM_INSTR_POP: {
if(buzzvm_pop(vm) != BUZZVM_STATE_READY) return vm->state;
inc_pc();
break;
}
case BUZZVM_INSTR_RET0: {
if(buzzvm_ret0(vm) != BUZZVM_STATE_READY) return vm->state;
assert_pc(vm->pc);
break;
}
case BUZZVM_INSTR_RET1: {
if(buzzvm_ret1(vm) != BUZZVM_STATE_READY) return vm->state;
assert_pc(vm->pc);
break;
}
case BUZZVM_INSTR_ADD: {
buzzvm_add(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_SUB: {
buzzvm_sub(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_MUL: {
buzzvm_mul(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_DIV: {
buzzvm_div(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_MOD: {
buzzvm_mod(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_POW: {
buzzvm_pow(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_UNM: {
buzzvm_unm(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_AND: {
buzzvm_and(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_OR: {
buzzvm_or(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_NOT: {
buzzvm_not(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_EQ: {
buzzvm_eq(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_NEQ: {
buzzvm_neq(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_GT: {
buzzvm_gt(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_GTE: {
buzzvm_gte(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_LT: {
buzzvm_lt(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_LTE: {
buzzvm_lte(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_GLOAD: {
inc_pc();
buzzvm_gload(vm);
break;
}
case BUZZVM_INSTR_GSTORE: {
inc_pc();
if(buzzvm_gstore(vm) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHT: {
buzzvm_pusht(vm);
inc_pc();
break;
}
case BUZZVM_INSTR_TPUT: {
if(buzzvm_tput(vm) != BUZZVM_STATE_READY) return vm->state;
inc_pc();
break;
}
case BUZZVM_INSTR_TGET: {
if(buzzvm_tget(vm) != BUZZVM_STATE_READY) return vm->state;
inc_pc();
break;
}
case BUZZVM_INSTR_CALLC: {
inc_pc();
if(buzzvm_callc(vm) != BUZZVM_STATE_READY) return vm->state;
assert_pc(vm->pc);
break;
}
case BUZZVM_INSTR_CALLS: {
inc_pc();
if(buzzvm_calls(vm) != BUZZVM_STATE_READY) return vm->state;
assert_pc(vm->pc);
break;
}
case BUZZVM_INSTR_PUSHF: {
inc_pc();
get_arg(float);
if(buzzvm_pushf(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHI: {
inc_pc();
get_arg(int32_t);
if(buzzvm_pushi(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHS: {
inc_pc();
get_arg(int32_t);
if(buzzvm_pushs(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHCN: {
inc_pc();
get_arg(uint32_t);
if(buzzvm_pushcn(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHCC: {
inc_pc();
get_arg(uint32_t);
if(buzzvm_pushcc(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_PUSHL: {
inc_pc();
get_arg(uint32_t);
if(buzzvm_pushl(vm, arg) != BUZZVM_STATE_READY) return vm->state;
break;
}
case BUZZVM_INSTR_LLOAD: {
inc_pc();
get_arg(uint32_t);
buzzvm_lload(vm, arg);
break;
}
case BUZZVM_INSTR_LSTORE: {
inc_pc();
get_arg(uint32_t);
buzzvm_lstore(vm, arg);
break;
}
case BUZZVM_INSTR_JUMP: {
inc_pc();
get_arg(uint32_t);
vm->pc = arg;
assert_pc(vm->pc);
break;
}
case BUZZVM_INSTR_JUMPZ: {
inc_pc();
get_arg(uint32_t);
buzzvm_stack_assert(vm, 1);
if(buzzvm_stack_at(vm, 1)->o.type == BUZZTYPE_NIL ||
(buzzvm_stack_at(vm, 1)->o.type == BUZZTYPE_INT &&
buzzvm_stack_at(vm, 1)->i.value == 0)) {
vm->pc = arg;
assert_pc(vm->pc);
}
buzzvm_pop(vm);
break;
}
case BUZZVM_INSTR_JUMPNZ: {
inc_pc();
get_arg(uint32_t);
buzzvm_stack_assert(vm, 1);
if(buzzvm_stack_at(vm, 1)->o.type != BUZZTYPE_NIL &&
(buzzvm_stack_at(vm, 1)->o.type != BUZZTYPE_INT ||
buzzvm_stack_at(vm, 1)->i.value != 0)) {
vm->pc = arg;
assert_pc(vm->pc);
}
buzzvm_pop(vm);
break;
}
default:
buzzvm_seterror(vm, BUZZVM_ERROR_INSTR, NULL);
break;
}
return vm->state;
}