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[qfcc] Add ExitCode support to quake-pascal

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gcd now passes :)
This commit is contained in:
Bill Currie 2020-03-20 11:48:01 +09:00
parent ed03eeb8d2
commit 298fcbbf70
2 changed files with 38 additions and 11 deletions
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43
tools/qfcc/source/qp-parse.y
View file

@ -139,6 +139,29 @@ int yylex (void);
%type <op> sign
%{
static void
build_dotmain (symbol_t *program)
{
symbol_t *dotmain = new_symbol (".main");
expr_t *code;
expr_t *exitcode;
dotmain->params = 0;
dotmain->type = parse_params (&type_integer, 0);
dotmain->type = find_type (dotmain->type);
dotmain = function_symbol (dotmain, 0, 1);
exitcode = new_symbol_expr (symtab_lookup (current_symtab, "ExitCode"));
current_func = begin_function (dotmain, 0, current_symtab, 0);
current_symtab = current_func->symtab;
code = new_block_expr ();
append_expr (code, function_expr (new_symbol_expr (program), 0));
append_expr (code, return_expr (current_func, exitcode));
build_code_function (dotmain, 0, code);
}
%}
%%
@ -159,15 +182,7 @@ program
build_code_function ($1, 0, $4);
current_symtab = st;
$4 = function_expr (new_symbol_expr ($1), 0);
$1 = new_symbol (".main");
$1->params = 0;
$1->type = parse_params (&type_void, 0);
$1->type = find_type ($1->type);
$1 = function_symbol ($1, 0, 1);
current_func = begin_function ($1, 0, current_symtab, 0);
current_symtab = current_func->symtab;
build_code_function ($1, 0, $4);
build_dotmain ($1);
current_symtab = st;
}
;
@ -178,6 +193,15 @@ program_head
{
$$ = $3;
// FIXME need units and standard units
{
symbol_t *sym = new_symbol ("ExitCode");
sym->type = &type_integer;
initialize_def (sym, 0, current_symtab->space, sc_global);
if (sym->s.def) {
sym->s.def->nosave = 1;
}
}
$$->type = parse_params (&type_void, 0);
$$->type = find_type ($$->type);
$$ = function_symbol ($$, 0, 1);
@ -375,6 +399,7 @@ statement
else
: ELSE
{
// this is only to get the the file and line number info
$$ = new_nil_expr ();
}
;

6
tools/qfcc/test/gcd.pas
View file

@ -1,5 +1,5 @@
program example (input, output);
var x, y: integer;
var x, y, g: integer;
procedure printf (format:string; ...) := #0;
function gcd (a, b: integer): integer;
var c: quaternion;
@ -11,5 +11,7 @@ end;
begin
x := 130;
y := 120;
printf ("%d\n", gcd (x, y))
g := gcd (x, y);
printf ("%d\n", g);
ExitCode := g <> 10;
end.