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TMU: Hello interrupts 

Let's pretend that the TMU unit actually exists, it makes games like
Gaunlet Legends happy ~
This commit is contained in:
Stefanos Kornilios Mitsis Poiitidis 2015-01-06 15:00:32 +02:00
parent c5cc2f1e50
commit 605fa1c40a
1 changed files with 18 additions and 17 deletions
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35
core/hw/sh4/modules/tmu.cpp
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@ -76,16 +76,32 @@ void UpdateTMU_i(u32 Cycles)
u32 tmu_ch_base[3];
u32 read_TMU_TCNTch(u32 ch)
{
return tmu_ch_base[ch]-((sh4_sched_now64()>>tmu_shift[ch])&tmu_mask[ch]);
return tmu_ch_base[ch] - ((sh4_sched_now64() >> tmu_shift[ch])&tmu_mask[ch]);
}
void sched_chan_tick(int ch)
{
//schedule next interrupt
//return TMU_TCOR(ch) << tmu_shift[ch];
u32 togo = read_TMU_TCNTch(ch);
u32 cycles = togo << tmu_shift[ch];
if (tmu_mask[ch])
sh4_sched_request(tmu_sched[ch], min(cycles, SH4_MAIN_CLOCK) );
else
sh4_sched_request(tmu_sched[ch], -1);
//sched_tmu_cb
}
void write_TMU_TCNTch(u32 ch, u32 data)
{
//u32 TCNT=read_TMU_TCNTch(ch);
tmu_ch_base[ch]=data+((sh4_sched_now64()>>tmu_shift[ch])&tmu_mask[ch]);
sched_chan_tick(ch);
}
template<u32 ch>
@ -100,21 +116,6 @@ void write_TMU_TCNT(u32 addr, u32 data)
write_TMU_TCNTch(ch,data);
}
void sched_chan_tick(int ch)
{
//schedule next interrupt
//return TMU_TCOR(ch) << tmu_shift[ch];
u32 tcor = TMU_TCOR(ch);
u32 cycles = tcor << tmu_shift[ch];
if (tmu_mask[ch])
sh4_sched_request(tmu_sched[ch], cycles);
else
sh4_sched_request(tmu_sched[ch], -1);
//sched_tmu_cb
}
void turn_on_off_ch(u32 ch, bool on)
{
u32 TCNT=read_TMU_TCNTch(ch);