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-rw-r--r--compiler.c120
1 files changed, 99 insertions, 21 deletions
diff --git a/compiler.c b/compiler.c
index 43efab1..c6d6455 100644
--- a/compiler.c
+++ b/compiler.c
@@ -300,9 +300,10 @@ void cdat_add(CompData *a, CompData *b) {
}
void cdat_write_to_file(CompData *cdat, FILE *fout) {
+ fprintf(fout, "bits 64\n");
fprintf(fout, "\n%s\n", vect_as_string(&(cdat->header)));
- fprintf(fout, "%s\n", vect_as_string(&(cdat->data)));
- fprintf(fout, "%s\n", vect_as_string(&(cdat->text)));
+ fprintf(fout, "section .data\n%s\n", vect_as_string(&(cdat->data)));
+ fprintf(fout, "section .text\n%s\n", vect_as_string(&(cdat->text)));
fflush(fout);
}
@@ -698,7 +699,7 @@ char *_op_get_register(int reg, int size) {
break;
}
- return out.data;
+ return vect_as_string(&out);
}
int _var_size(Variable *var) {
@@ -1917,9 +1918,10 @@ char *mod_full_path(Module *m) {
char *mod_label_prefix(Module *m) {
Vector out = vect_from_string("");
- while (m != NULL) {
+ while (m->parent != NULL) {
vect_push_string(&out, m->name);
vect_push_string(&out, ".");
+ m = m->parent;
}
return vect_as_string(&out);
@@ -3617,17 +3619,38 @@ Variable _eval_composite() {
}
+Variable _eval_literal(Scope *s, CompData *data, Vector *tokens, size_t literal) {
+ Variable out = var_init("#literal", NULL);
+ Token *t = vect_get(tokens, literal);
+
+ if (t->data[0] == '"') {
+ // handle str
+ } else {
+ out.location = LOC_LITL;
+ if (t->data[0] == '\'')
+ out.offset = tnsl_unquote_char(t->data + 1);
+ else
+ out.offset = tnsl_parse_number(t);
+ }
+ return out;
+}
+
// Main implementation, recursive
Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t end, Variable *tmp) {
Variable out;
out.name = NULL;
+ Token *t = vect_get(tokens, start);
+ if (start == end - 1 && t->type == TT_LITERAL) {
+ return _eval_literal(s, data, tokens, start);
+ }
+
int op = -1;
int op_pos = 0;
int delim = -1;
for(size_t i = start; i < end; i++) {
- Token *t = vect_get(tokens, i);
+ t = vect_get(tokens, i);
if (t->type == TT_DELIMIT) {
if(delim < 0) {
delim = i;
@@ -3686,6 +3709,38 @@ Variable _eval(Scope *s, CompData *data, Vector *tokens, size_t start, size_t en
// Based on op_token, split the two halves and recurse.
// TODO
+
+ Variable a = _eval(s, data, tokens, start, op_pos, tmp);
+ Variable b = _eval(s, data, tokens, op_pos + 1, end, tmp);
+
+ if (strlen(op_token->data) == 1) {
+ switch(op_token->data[0]) {
+ case '+':
+ var_op_add(data, &a, &b);
+ break;
+ case '-':
+ var_op_sub(data, &a, &b);
+ break;
+ case '*':
+ var_op_mul(data, &a, &b);
+ break;
+ case '/':
+ var_op_div(data, &a, &b);
+ break;
+ case '%':
+ var_op_mod(data, &a, &b);
+ break;
+ case '|':
+ var_op_or(data, &a, &b);
+ break;
+ case '&':
+ var_op_and(data, &a, &b);
+ break;
+ case '^':
+ var_op_xor(data, &a, &b);
+ break;
+ }
+ }
return out;
}
@@ -3768,15 +3823,23 @@ void _p2_handle_method_scope(Module *root, CompData *out, Scope *fs) {
void _p2_func_scope_init(Module *root, CompData *out, Scope *fs) {
// TODO: decide what happens when a function scope is created
+ // export function if module is exported.
+ Vector tmp = _scope_base_label(fs);
+ if (root->exported) {
+ vect_push_string(&out->header, "global ");
+ vect_push_string(&out->header, vect_as_string(&tmp));
+ vect_push_string(&out->header, "\n");
+ }
+
// put the label
-
+ vect_push_free_string(&out->text, vect_as_string(&tmp));
+ vect_push_string(&out->text, ":\n");
+
// Update stack pointers
vect_push_string(&out->text, "\tpush rbp\n");
vect_push_string(&out->text, "\tlea rbp, [rsp + 8]\n");
// Push registers to save callee variables (subject to ABI change)
- vect_push_string(&out->text, "\tpush r8\n");
- vect_push_string(&out->text, "\tpush r9\n");
vect_push_string(&out->text, "\tpush r10\n");
vect_push_string(&out->text, "\tpush r11\n");
vect_push_string(&out->text, "\tpush r12\n");
@@ -3792,16 +3855,16 @@ void _p2_func_scope_end(CompData *out, Scope *fs) {
// TODO: Revert state of system to what it was before the function was called
-
+ vect_push_string(&out->text, "\tlea rsp, [rbp - 56]\n");
vect_push_string(&out->text, "\tpop r15\n");
vect_push_string(&out->text, "\tpop r14\n");
vect_push_string(&out->text, "\tpop r13\n");
vect_push_string(&out->text, "\tpop r12\n");
vect_push_string(&out->text, "\tpop r11\n");
vect_push_string(&out->text, "\tpop r10\n");
- vect_push_string(&out->text, "\tpop r9\n");
- vect_push_string(&out->text, "\tpop r8\n");
- vect_push_string(&out->text, "\tpop rbp ; scope end\n"); // restore stack frame
+ vect_push_string(&out->text, "\tpop rbp\n"); // restore stack frame
+ vect_push_string(&out->text, "\tret ; Scope end\n");
+
}
void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *pos) {
@@ -3826,7 +3889,7 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
}
if(t == NULL || t->type != TT_DEFWORD) {
- printf("ERROR: Could not user defined name for function \"%s\" (%d:%d)\n\n", start->data, start->line, start->col);
+ printf("ERROR: Could not find user defined name for function \"%s\" (%d:%d)\n\n", start->data, start->line, start->col);
p2_error = true;
return;
}
@@ -3838,20 +3901,23 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
// Scope init
Scope fs = scope_init(t->data, root);
+ _p2_func_scope_init(root, out, &fs);
if(root->name[0] == '@') {
_p2_handle_method_scope(root, out, &fs);
}
- _p2_func_scope_init(root, out, &fs);
while(*pos < (size_t)end) {
t = vect_get(tokens, *pos);
if(tok_str_eq(t, "\n"))
break;
+ else if (t->type == TT_DELIMIT)
+ *pos = tnsl_find_closing(tokens, *pos);
*pos += 1;
}
- for(*pos += 1; *pos < (size_t)end; *pos += 1) {
- t = vect_get(tokens, ++(*pos));
+ *pos = tnsl_next_non_nl(tokens, *pos);
+ for (; *pos < (size_t)end; *pos = tnsl_next_non_nl(tokens, *pos)) {
+ t = vect_get(tokens, *pos);
if (tok_str_eq(t, "/;") || tok_str_eq(t, ";;")) {
size_t b_open = *pos;
@@ -3872,9 +3938,11 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
if(tok_str_eq(t, "return")) {
t = vect_get(tokens, *pos + 1);
if (f->outputs.count > 0) {
- if (*pos + 1 < end && !tok_str_eq(t, "\n"))
- eval(&fs, out, tokens, pos + 1, true);
- else {
+ if (*pos + 1 < end && !tok_str_eq(t, "\n")) {
+ *pos += 1;
+ Variable e = eval(&fs, out, tokens, pos, true);
+ var_end(&e);
+ } else {
t = vect_get(tokens, *pos);
printf("ERROR: Attempt to return from a function without a value, but the function requires one (%d:%d)", t->line, t->col);
p2_error = true;
@@ -3882,6 +3950,8 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
}
_p2_func_scope_end(out, &fs);
*pos = end;
+ scope_end(&fs);
+ return;
} else if (tok_str_eq(t, "asm")) {
t = vect_get(tokens, ++(*pos));
if(t->type != TT_LITERAL || t->data[0] != '"') {
@@ -3889,8 +3959,9 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
p2_error = true;
} else {
char *m = tnsl_unquote_str(t->data);
+ vect_push_string(&out->text, "\t");
vect_push_string(&out->text, m);
- vect_push_string(&out->text, "\n");
+ vect_push_string(&out->text, "; User insert asm\n");
free(m);
}
}
@@ -3899,10 +3970,17 @@ void p2_compile_function(Module *root, CompData *out, Vector *tokens, size_t *po
} else {
// TODO: figure out eval parameter needs (maybe needs start and end size_t?)
// and how eval will play into top level defs (if at all)
- eval(&fs, out, tokens, pos, false);
+ Variable e = eval(&fs, out, tokens, pos, false);
+ var_end(&e);
}
}
+ if (f->outputs.count > 0) {
+ printf("ERROR: Expected return value for function (%d:%d)\n\n", t->line, t->col);
+ p2_error = true;
+ }
+
+ _p2_func_scope_end(out, &fs);
scope_end(&fs);
*pos = end;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 12:54:01 +0000