Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 17:56:43 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Model 3 driver updates:

Browse Source 
- Interrupt controller improved
- Fixed chip IDs for magtruck and von254g
- Various notes for working out additional issues
This commit is contained in:
R. Belmont 2009-07-02 05:42:35 +00:00
parent 02df84f38a
commit f174883581
1 changed files with 108 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

112
src/mame/drivers/model3.c
View File

@ -12,6 +12,36 @@
Step 2.0: 166 MHz PPC, even faster 3D engine
Step 2.1: 166 MHz PPC, same 3D engine as 2.0, differences unknown
Game status:
vf3/vf3a - boots and runs
vf3tb - deliberately kills itself (jumps to infinite loop)
bass - boots and runs with 3D
getbass - I/O board error (?)
scud/scuda - boots and runs with 3D (scuda says "for sale and use only in Japan but is marked Export?)
scudj - boots but hangs up (no SCSI IRQs)
scudp - shows initial screen, apparently won't go into test mode or advance
lostwsga - SCSI IRQ stuck on (boots and runs with 3D if hacked)
vs215 - boots and runs with 3D
lemans24 - SCSI IRQ stuck on (boots if hacked)
vs29815 - write to unknown 53c810 SCSI register
vs2 - looks like it should boot but never displays anything
harley - boots and runs with 3D after a "NO DAUGHTER BOARD DETECTED" error
skichamp - "NO DAUGHTER BOARD DETECTED", doesn't advance (no SCSI IRQs occur)
srally2/sraly2dx - doesn't boot (no SCSI IRQs occur, other IRQs look fine)
von2/von254g - SCSI IRQ stuck on (boots and runs if SCSI ack is hacked)
fvipers2 - says "ONE PROCESSOR DETECTED" and hangs (no SCSI IRQs occur, others look fine)
vs298/vs299/vs2v991 - hangs (no SCSI IRQs occur, others look fine)
daytona2/dayto2pe - hangs MAME, CROMs (program/data) are marked "bad dump"
dirtdvls/dirtdvla - SCSI IRQ stuck on (boots partially if hacked)
swtrilgy - doesn't boot (no SCSI IRQs occur, other IRQs look fine)
swtrilga - SCSI IRQ stuck on
spikeout/spikeofe - hangs MAME, CROMs (program/data) are marked "bad dump"
magtruck - SCSI IRQ stuck on (boots and fails country code check (!) if hacked)
eca/ecax - doesn't boot (a few SCSI IRQs occur but then cease, other IRQs look fine)
===================================================================================
Tilemap generator notes:
@ -551,6 +581,22 @@ ALL VROM ROMs are 16M MASK
*/
/*
magtruck locations of interest
000006ee (word) - incremented each vblank, used by mainline to busywait.
000006f5 (byte) - shadow of current IRQ enable
000003f0 (dword) - shadow (from irq handler) of IRQ state on entry
00000500 - IRQ handler prologue/epilogue
00152250 - IRQ dispatcher
00151f48 - service routine for IRQ 0x02 (VBL)
00151ef8 - service routine for IRQ 0x04
00151ed8 - service routine for IRQ 0x08
0014b110 - service routine for IRQ 0x40 (SCSP)
*/
#include "driver.h"
#include "cpu/m68000/m68000.h"
#include "deprecat.h"
@ -581,9 +627,16 @@ static UINT16 *model3_soundram;
static void update_irq_state(running_machine *machine)
{
if ((irq_enable & irq_state) || scsi_irq_state)
{
// printf("IRQ set: state %x enable %x scsi %x\n", irq_state, irq_enable, scsi_irq_state);
cputag_set_input_line(machine, "maincpu", PPC_IRQ, ASSERT_LINE);
scsi_irq_state = 0;
}
else
{
// printf("IRQ clear: state %x enable %x scsi %x\n", irq_state, irq_enable, scsi_irq_state);
cputag_set_input_line(machine, "maincpu", PPC_IRQ, CLEAR_LINE);
}
}
void model3_set_irq_line(running_machine *machine, UINT8 bit, int state)
@ -1223,14 +1276,26 @@ static void model3_init(running_machine *machine, int step)
mame_stricmp(machine->gamedrv->name, "bass") == 0 )
{
mpc106_init();
} else {
}
else
{
mpc105_init();
}
real3d_device_id = 0x16c311db; /* PCI Vendor ID (11db = SEGA), Device ID (16c3 = 315-5827) */
}
else {
mpc106_init();
real3d_device_id = 0x178611db; /* PCI Vendor ID (11db = SEGA), Device ID (1786 = 315-6022) */
// some step 2+ games need the older PCI ID (obvious symptom:
// vbl is enabled briefly then disabled so the game hangs)
if (mame_stricmp(machine->gamedrv->name, "magtruck") == 0 ||
mame_stricmp(machine->gamedrv->name, "von254g") == 0)
{
real3d_device_id = 0x16c311db; /* PCI Vendor ID (11db = SEGA), Device ID (16c3 = 315-5827) */
}
else
{
real3d_device_id = 0x178611db; /* PCI Vendor ID (11db = SEGA), Device ID (1786 = 315-6022) */
}
}
}
@ -1421,6 +1486,8 @@ static WRITE64_HANDLER( model3_ctrl_w )
static READ64_HANDLER( model3_sys_r )
{
// printf("model3_sys_r: mask %llx @ %x (PC %x)\n", mem_mask, offset, cpu_get_pc(space->cpu));
switch (offset)
{
case 0x08/8:
@ -1454,6 +1521,8 @@ static READ64_HANDLER( model3_sys_r )
static WRITE64_HANDLER( model3_sys_w )
{
// printf("model3_sys_w: %llx to %x mask %llx\n", data, offset, mem_mask);
switch (offset)
{
case 0x10/8:
@ -1463,6 +1532,38 @@ static WRITE64_HANDLER( model3_sys_w )
}
else logerror("m3_sys: unknown mask on IRQen write\n");
break;
case 0x18/8:
if ((mem_mask & 0xff000000) == 0xff000000) // int ACK with bits in REVERSE ORDER from the other registers (Seeeee-gaaaa!)
{ // may also be a secondary enable based on behavior of e.g. magtruck VBL handler
// UINT32 old_irq = irq_state;
UINT8 ack = (data>>24)&0xff, realack;
int i;
switch (ack)
{
case 0xff: // no ack, do nothing
return;
default:
realack = 0xff; // default to all bits set, no clearing
for (i = 7; i >= 0; i--)
{
// if bit is clear, clear the bit on the opposite end
if (!(ack & (1<<i)))
{
realack &= ~(1<<(7-i));
}
}
irq_state &= realack;
break;
}
}
else
{
logerror("Unknown 0x18/8 write %llx mask %llx\n", data, mem_mask);
}
break;
case 0x08/8:
if (ACCESSING_BITS_56_63)
{
@ -1531,7 +1632,10 @@ static READ64_HANDLER(model3_sound_r)
static WRITE64_HANDLER(model3_sound_w)
{
model3_set_irq_line(space->machine, 0x40, CLEAR_LINE);
if ((mem_mask & 0xff000000) == 0xff000000)
{
model3_set_irq_line(space->machine, 0x40, CLEAR_LINE);
}
// serial configuration writes
if ((mem_mask == U64(0xff00000000000000)) && (offset == 0))
@ -4592,7 +4696,7 @@ static int model3_vblank = 0;
static INTERRUPT_GEN(model3_interrupt)
{
if (model3_vblank == 0) {
model3_set_irq_line(device->machine, 0x42, ASSERT_LINE);
model3_set_irq_line(device->machine, 0x02, ASSERT_LINE);
} else {
model3_set_irq_line(device->machine, 0x0d, ASSERT_LINE);
}