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undar-lang/test/fib.uir.ul

60 lines
1.0 KiB
C

str terminal_namespace = "/dev/term/0";
str new_line = "\n";
function main () {
int result;
int str_n;
load_immediate 35 -> result;
call fib (result) -> result;
int_to_string result -> str_n;
call pln (str_n);
exit 0;
}
function fib (int n) {
int result;
load_immediate 2 -> result;
jump_lt_int base_case n result;
int two;
int tmp_n;
int result_a;
int result_b;
load_immediate 2 -> two;
sub_int n two -> tmp_n;
call fib (tmp_n) -> result_a;
int one;
load_immediate 1 -> one;
sub_int n one -> tmp_n;
call fib (tmp_n) -> result_b;
add_int result_b result_a -> result;
return result;
else base_case;
return n;
}
function pln (str message) {
ptr term;
int msg_length;
str nl;
int nl_length;
int mode;
str term_ns;
load_immediate 0 -> mode;
load_address terminal_namespace -> term_ns;
syscall OPEN term_ns mode term;
string_length message -> msg_length;
syscall WRITE term message msg_length;
load_address new_line -> nl;
string_length nl -> nl_length;
syscall WRITE term nl nl_length;
return;
}