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(MESS) SNES SA-1: fixed initial SA-1 status and added preliminary SA-1 to S-CPU IRQ. [R. Belmont]

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This commit is contained in:
R. Belmont 2013-06-23 12:44:54 +00:00
parent 946fb90c92
commit 49a2995eac
1 changed files with 37 additions and 8 deletions
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45
src/mess/machine/sns_sa1.c
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@ -28,7 +28,33 @@
- test case for BWRAM & IRAM write protect (bsnes does not seem to ever protect either, so it's not implemented
for the moment)
- almost everything CPU related!
Compatibility:
sdf1gpp, sdf1gp: corrupt menu gfx, hangs going into game (I think)
habumeij: boots, goes into game, on-screen timer counts down after SA-1 is enabled but controls aren't responsive
kirbysdb, kirbyss, kirbyfun, kirbysd, kirbysda: plays OK
kirby3j, kirby3: uses SA-1 DMA
itoibass: boots, some missing gfx
jl96drem: hangs entering gameplay with SA-1 disabled
haruaug3a, pebble, haruaug3: uses SA-1 DMA
miniyonk: corrupt gfx, can't get past press start
pgaeuro, pgaeurou, pga96, pga96u, pga, pgaj: plays OK
przeo, przeou: plays OK
sdgungnx: plays music and hangs, both CPUs are waiting for RAM locations to change
panicbw: plays OK
smrpgj, smrpg: boots, hangs with music playing and missing gfx
daisenx2: goes into game, garbage gfx, presuably uses SA-1 graphics functions
derbyjo2: plays OK, some garbage gfx, presuably uses SA-1 graphics functions
dbzhypd, dbzhypdj: plays OK
jikkpaaro: plays OK
jumpind: boots and runs, uses SA-1 DMA and character conversion
kakinoki: S-CPU crashes after pressing start
marvelou: locks up, not sure what's going on
shinshog: goes into game, seems to hang after you move a piece?
shogisai: plays OK
shogisa2: plays OK
srobotg: plays OK
***********************************************************************************************************/
@ -69,7 +95,7 @@ void sns_sa1_device::device_reset()
{
memset(m_internal_ram, 0, 0x800);
m_sa1_ctrl = 0;
m_sa1_ctrl = 0x20;
m_scpu_ctrl = 0;
m_irq_vector = 0;
m_nmi_vector = 0;
@ -120,16 +146,14 @@ void sns_sa1_device::device_reset()
void sns_sa1_device::recalc_irqs()
{
#if 0 // how do we get the maincpu from here?
if (m_scpu_flags & m_scpu_sie & (SCPU_IRQ_SA1|SCPU_IRQ_CHARCONV))
{
set_input_line(G65816_LINE_IRQ, ASSERT_LINE);
machine().device("maincpu")->execute().set_input_line(G65816_LINE_IRQ, ASSERT_LINE);
}
else
{
set_input_line(G65816_LINE_IRQ, CLEAR_LINE);
machine().device("maincpu")->execute().set_input_line(G65816_LINE_IRQ, CLEAR_LINE);
}
#endif
if (m_sa1_flags & m_sa1_sie & (SA1_IRQ_SCPU|SA1_IRQ_TIMER|SA1_IRQ_DMA))
{
@ -297,14 +321,15 @@ void sns_sa1_device::write_regs(UINT32 offset, UINT8 data)
{
case 0x000:
// SA-1 control flags
// printf("%02x to SA-1 control\n", data);
if ((BIT(data, 5)) && !(BIT(m_sa1_ctrl, 5)))
{
printf("Engaging SA-1 reset\n");
// printf("Engaging SA-1 reset\n");
m_sa1->set_input_line(INPUT_LINE_HALT, ASSERT_LINE);
}
else if (!(BIT(data, 5)) && (BIT(m_sa1_ctrl, 5)))
{
printf("Releasing SA-1 reset\n");
// printf("Releasing SA-1 reset\n");
m_sa1->set_input_line(INPUT_LINE_HALT, CLEAR_LINE);
m_sa1->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
m_sa1->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
@ -329,6 +354,7 @@ void sns_sa1_device::write_regs(UINT32 offset, UINT8 data)
case 0x001:
// SNES SIE 00h SNES CPU Int Enable (W)
m_scpu_sie = data;
// printf("S-CPU IE = %02x\n", data);
recalc_irqs();
break;
case 0x002:
@ -379,6 +405,7 @@ void sns_sa1_device::write_regs(UINT32 offset, UINT8 data)
if (m_scpu_ctrl & 0x80)
{
m_scpu_flags |= SCPU_IRQ_SA1;
// printf("SA-1 cause S-CPU IRQ\n");
}
// message to SA-1
@ -396,6 +423,7 @@ void sns_sa1_device::write_regs(UINT32 offset, UINT8 data)
case 0x00a:
// SA-1 CIE 00h SA-1 CPU Int Enable (W)
m_sa1_sie = data;
// printf("SA-1 IE = %02x\n", data);
recalc_irqs();
break;
case 0x00b:
@ -507,6 +535,7 @@ void sns_sa1_device::write_regs(UINT32 offset, UINT8 data)
break;
case 0x030:
// SA-1 DCNT 00h DMA Control (W)
// printf("%02x to SA-1 DMA control\n", data);
break;
case 0x031:
// Both CDMA 00h Character Conversion DMA Parameters (W)