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-rw-r--r--compiler.c59
1 files changed, 58 insertions, 1 deletions
diff --git a/compiler.c b/compiler.c
index 8d600a1..e1b6844 100644
--- a/compiler.c
+++ b/compiler.c
@@ -545,6 +545,7 @@ char *_reg_by_id_size(int id, int size, bool address) {
vect_push_string(&prefix, "qword ");
break;
}
+ size = 8;
}
if(id > 7) {
@@ -599,6 +600,37 @@ char *_reg_by_id_size(int id, int size, bool address) {
return vect_as_string(&prefix);
}
+/// Remember to free!
+char *_gen_address(char *prefix, char *base, char *offset, int mult, int add) {
+ Vector out = vect_init(sizeof(char));
+
+ vect_push_string(&out, prefix);
+ vect_push_string(&out, "[");
+ vect_push_string(&out, base);
+
+ if (offset != NULL && mult > 0) {
+ vect_push_string(&out, " + ");
+ vect_push_string(&out, offset);
+ if(mult > 1) {
+ vect_push_string(&out, "*");
+ char *mstr = int_to_str(mult);
+ vect_push_string(&out, mstr);
+ free(mstr);
+ }
+ }
+
+ if(add > 0) {
+ vect_push_string(&out, " + ");
+ char *astr = int_to_str(add);
+ vect_push_string(&out, astr);
+ free(astr);
+ }
+
+ vect_push_string(&out, "]");
+
+ return vect_as_string(&out);
+}
+
// Type coercion engine
// TODO: all
Variable _op_coerce(Variable *base, Variable *to_coerce) {
@@ -616,6 +648,15 @@ Variable _op_coerce(Variable *base, Variable *to_coerce) {
// with an array => pointer + 8 bytes (length of array at start) + index * size of data
// with a pointer => pointer + index * size of data
+// Get the last value from ptr_chain
+int _var_ptr_type(Variable *v) {
+ if(v->ptr_chain.count < 1) {
+ // Return an invalid value if ptr_chain has no values.
+ return -2;
+ }
+ return ((int*)v->ptr_chain.data)[v->ptr_chain.count - 1];
+}
+
char *_op_get_register(int reg, int size) {
Vector out = vect_init(sizeof(char));
char add = 'r';
@@ -678,11 +719,27 @@ void var_swap_register(CompData *out, Variable *swap, int new_reg) {
}
-void var_op_reference(CompData *out, Variable *store, Variable *from) {}
void var_op_dereference(CompData *out, Variable *store, Variable *from) {}
void var_op_index(CompData *out, Variable *store, Variable *from, Variable *index) {}
void var_op_set(CompData *out, Variable *store, Variable *from) {}
+
+void var_op_reference(CompData *out, Variable *store, Variable *from) {
+ if(from->ptr_chain.count > 0 && _var_ptr_type(from) == PTYPE_REF) {
+ // The value is a reference to data, so we should just copy it
+ var_op_set(out, store, from);
+ return;
+ }
+
+ if(from->location > 0) {
+ // Can't generate reference if variable is in register
+ printf("FATAL: (Compiler error) attempt to generate reference to a variable in a register.\n");
+ return;
+ }
+
+
+}
+
Variable var_op_member(Variable *from, char *member) {
Variable out;
return out;