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next: implement equality

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This commit is contained in:
Lobo 2026-02-08 10:33:13 -03:00
parent 58ba150c93
commit 653082c4d8
3 changed files with 96 additions and 26 deletions
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40
next/core/vm.c
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@ -109,21 +109,11 @@ static GrowlFrame callstack_pop(GrowlVM *vm) {
return *--vm->csp;
}
static void root_constants(GrowlVM *vm, GrowlQuotation *quot) {
GrowlTuple *constants = growl_unwrap_tuple(quot->constants);
if (constants != NULL) {
for (size_t i = 0; i < constants->count; ++i) {
growl_gc_root(vm, &constants->data[i]);
}
}
}
static inline void dispatch(GrowlVM *vm, Growl obj) {
for (;;) {
switch (growl_type(obj)) {
case GROWL_TYPE_QUOTATION: {
GrowlQuotation *q = (GrowlQuotation *)(GROWL_UNBOX(obj) + 1);
root_constants(vm, q);
vm->current_quotation = q;
vm->ip = q->data;
return;
@ -156,8 +146,6 @@ int growl_vm_execute(GrowlVM *vm, GrowlQuotation *quot) {
return result;
}
root_constants(vm, quot);
vm->ip = quot->data;
vm->current_quotation = quot;
@ -334,7 +322,7 @@ int growl_vm_execute(GrowlVM *vm, GrowlQuotation *quot) {
if (GROWL_IMM(b) && GROWL_IMM(a)) { \
growl_push(vm, GROWL_NUM(GROWL_ORD(a) op GROWL_ORD(b))); \
} else { \
vm_error(vm, "arithmetic on non-numbers"); \
vm_error(vm, "numeric op on non-numbers"); \
} \
VM_NEXT(); \
}
@ -350,7 +338,7 @@ int growl_vm_execute(GrowlVM *vm, GrowlQuotation *quot) {
vm_error(vm, "division by zero");
growl_push(vm, GROWL_NUM(GROWL_ORD(a) / GROWL_ORD(b)));
} else {
vm_error(vm, "arithmetic on non-numbers");
vm_error(vm, "numeric op on non-numbers");
};
VM_NEXT();
}
@ -362,7 +350,7 @@ int growl_vm_execute(GrowlVM *vm, GrowlQuotation *quot) {
vm_error(vm, "division by zero");
growl_push(vm, GROWL_NUM(GROWL_ORD(a) % GROWL_ORD(b)));
} else {
vm_error(vm, "arithmetic on non-numbers");
vm_error(vm, "numeric op on non-numbers");
};
VM_NEXT();
}
@ -378,6 +366,28 @@ int growl_vm_execute(GrowlVM *vm, GrowlQuotation *quot) {
}
VM_NEXT();
}
VM_OP(EQ) {
Growl b = growl_pop(vm);
Growl a = growl_pop(vm);
int equals = growl_equals(a, b);
if (equals) {
growl_push(vm, GROWL_NUM(1));
} else {
growl_push(vm, GROWL_NIL);
}
VM_NEXT();
}
VM_OP(NEQ) {
Growl b = growl_pop(vm);
Growl a = growl_pop(vm);
int equals = growl_equals(a, b);
if (!equals) {
growl_push(vm, GROWL_NUM(1));
} else {
growl_push(vm, GROWL_NIL);
}
VM_NEXT();
}
VM_DEFAULT() { vm_error(vm, "unknown opcode %d", opcode); }
VM_END()