forgotten credit..
[picodrive.git] / cpu / drc / cmn.c
CommitLineData
cff531af 1/*
2 * PicoDrive
3 * Copyright (C) 2009,2010 notaz
4 *
5 * This work is licensed under the terms of MAME license.
6 * See COPYING file in the top-level directory.
7 */
41397701 8#include <stdio.h>
41397701 9
570dde61 10#include <pico/pico_int.h>
41397701 11#include "cmn.h"
12
f4bb5d6b 13u8 __attribute__((aligned(4096))) tcache[DRC_TCACHE_SIZE];
41397701 14
15
16void drc_cmn_init(void)
17{
570dde61 18 int ret = plat_mem_set_exec(tcache, sizeof(tcache));
19 elprintf(EL_STATUS, "drc_cmn_init: %p, %zd bytes: %d",
20 tcache, sizeof(tcache), ret);
21
22#ifdef __arm__
0185b677 23 if (PicoOpt & POPT_EN_DRC)
570dde61 24 {
25 static int test_done;
26 if (!test_done)
27 {
28 int *test_out = (void *)tcache;
29 int (*testfunc)(void) = (void *)tcache;
30
31 elprintf(EL_STATUS, "testing if we can run recompiled code..");
32 *test_out++ = 0xe3a000dd; // mov r0, 0xdd
33 *test_out++ = 0xe12fff1e; // bx lr
34 cache_flush_d_inval_i(tcache, test_out);
35
36 // we'll usually crash on broken platforms or bad ports,
37 // but do a value check too just in case
38 ret = testfunc();
39 elprintf(EL_STATUS, "test %s.", ret == 0xdd ? "passed" : "failed");
40 test_done = 1;
41 }
42 }
43#endif
41397701 44}
45
41397701 46void drc_cmn_cleanup(void)
47{
41397701 48}
570dde61 49
50// vim:shiftwidth=2:expandtab