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32x: change irq hadling, make it more drc friendly

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@816 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-10-14 14:46:38 +00:00
parent a8b03e2d4d
commit 6add7875b5
5 changed files with 46 additions and 25 deletions
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28
cpu/sh2/compiler.c
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@ -318,15 +318,16 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block)
}
end_op:
if (delayed_op == 1) {
if (delayed_op == 1)
emit_move_r_r(SHR_PC, SHR_PPC);
break;
}
if (test_irq && delayed_op != 2) {
emith_pass_arg(1, sh2);
emith_call(sh2_test_irq);
break;
}
if (delayed_op == 1)
break;
#if (DRC_DEBUG & 2)
host_dasm(tcache_dsm_ptr, (char *)tcache_ptr - (char *)tcache_dsm_ptr);
@ -372,8 +373,13 @@ void __attribute__((noinline)) sh2_drc_dispatcher(SH2 *sh2)
{
while (((signed int)sh2->sr >> 12) > 0)
{
block_desc *bd = HASH_FUNC(sh2->pc_hashtab, sh2->pc);
void *block = NULL;
block_desc *bd;
// FIXME: must avoid doing it so often..
sh2_test_irq(sh2);
bd = HASH_FUNC(sh2->pc_hashtab, sh2->pc);
if (bd != NULL) {
if (bd->addr == sh2->pc)
@ -407,10 +413,16 @@ void sh2_execute(SH2 *sh2, int cycles)
static void __attribute__((regparm(1))) sh2_test_irq(SH2 *sh2)
{
if (sh2->pending_irl > sh2->pending_int_irq)
sh2_irl_irq(sh2, sh2->pending_irl);
else
sh2_internal_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector);
if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f))
{
if (sh2->pending_irl > sh2->pending_int_irq)
sh2_do_irq(sh2, sh2->pending_irl, 64 + sh2->pending_irl/2);
else {
sh2_do_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector);
sh2->pending_int_irq = 0; // auto-clear
sh2->pending_level = sh2->pending_irl;
}
}
}
int sh2_drc_init(SH2 *sh2)