blob: b36eec00d80d993c2f8c8046913d2a9c95ae1485 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
#include <stdio.h>
#include <lightning.h>
static jit_state_t *_jit;
typedef void (*pvfi)(int); /* Pointer to Void Function of Int */
int main(int argc, char *argv[])
{
pvfi myFunction; /* ptr to generated code */
jit_node_t *start, *end; /* a couple of labels */
jit_node_t *in; /* to get the argument */
init_jit(argv[0]);
_jit = jit_new_state();
start = jit_note(__FILE__, __LINE__);
jit_prolog();
in = jit_arg();
jit_getarg(JIT_R1, in);
jit_prepare();
jit_pushargi((jit_word_t)"generated %d bytes\n");
jit_ellipsis();
jit_pushargr(JIT_R1);
jit_finishi(printf);
jit_ret();
jit_epilog();
end = jit_note(__FILE__, __LINE__);
myFunction = jit_emit();
/* call the generated code, passing its size as argument */
myFunction((char*)jit_address(end) - (char*)jit_address(start));
jit_clear_state();
jit_disassemble();
jit_destroy_state();
finish_jit();
return 0;
}
|