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Corrected Ameri Darts audio playback rate.

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This exposed some cycle timing errors in the TMS32010 CPU
core which are also fixed. [Quench]
This commit is contained in:
Quench 2010-07-27 15:34:59 +00:00
parent ee658f9d37
commit 6f5d3a09d1
3 changed files with 58 additions and 15 deletions
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54
src/emu/cpu/tms32010/tms32010.c
View File

@ -52,6 +52,8 @@
* - LST instruction was incorrectly setting an Indirect Addressing *
* feature when Direct Addressing mode was selected *
* - Added TMS32015 and TMS32016 variants *
* TLP (27-Jul-2010) Ver 1.31 *
* - Corrected cycle timing for conditional branch instructions *
* *
\**************************************************************************/
@ -118,6 +120,8 @@ struct _tms32010_opcode
void (*function)(tms32010_state *);
};
INLINE int add_branch_cycle(tms32010_state *cpustate);
/********* The following is the Status (Flag) register definition. *********/
/* 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 */
@ -400,8 +404,10 @@ static void br(tms32010_state *cpustate)
}
static void banz(tms32010_state *cpustate)
{
if (cpustate->AR[ARP] & 0x01ff)
if (cpustate->AR[ARP] & 0x01ff) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
cpustate->ALU.w.l = cpustate->AR[ARP];
@ -410,59 +416,74 @@ static void banz(tms32010_state *cpustate)
}
static void bgez(tms32010_state *cpustate)
{
if ( (INT32)(cpustate->ACC.d) >= 0 )
if ( (INT32)(cpustate->ACC.d) >= 0 ) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bgz(tms32010_state *cpustate)
{
if ( (INT32)(cpustate->ACC.d) > 0 )
if ( (INT32)(cpustate->ACC.d) > 0 ) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bioz(tms32010_state *cpustate)
{
if (BIO_IN != CLEAR_LINE)
if (BIO_IN != CLEAR_LINE) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void blez(tms32010_state *cpustate)
{
if ( (INT32)(cpustate->ACC.d) <= 0 )
if ( (INT32)(cpustate->ACC.d) <= 0 ) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void blz(tms32010_state *cpustate)
{
if ( (INT32)(cpustate->ACC.d) < 0 )
if ( (INT32)(cpustate->ACC.d) < 0 ) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bnz(tms32010_state *cpustate)
{
if (cpustate->ACC.d != 0)
if (cpustate->ACC.d != 0) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bv(tms32010_state *cpustate)
{
if (OV) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
CLR(cpustate, OV_FLAG);
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
static void bz(tms32010_state *cpustate)
{
if (cpustate->ACC.d == 0)
if (cpustate->ACC.d == 0) {
cpustate->PC = M_RDOP_ARG(cpustate->PC);
cpustate->icount -= add_branch_cycle(cpustate);
}
else
cpustate->PC++ ;
}
@ -726,6 +747,8 @@ static void zals(tms32010_state *cpustate)
* Opcode Table (Cycles, Instruction)
***********************************************************************/
/* Conditional Branch instructions take two cycles when the test condition is met and the branch performed */
static const tms32010_opcode opcode_main[256]=
{
/*00*/ {1, add_sh },{1, add_sh },{1, add_sh },{1, add_sh },{1, add_sh },{1, add_sh },{1, add_sh },{1, add_sh },
@ -758,8 +781,8 @@ static const tms32010_opcode opcode_main[256]=
/*D8*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
/*E0*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
/*E8*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },{0, illegal },
/*F0*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{2, banz },{2, bv },{2, bioz },{0, illegal },
/*F8*/ {2, call },{2, br },{2, blz },{2, blez },{2, bgz },{2, bgez },{2, bnz },{2, bz }
/*F0*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{1, banz },{1, bv },{1, bioz },{0, illegal },
/*F8*/ {2, call },{2, br },{1, blz },{1, blez },{1, bgz },{1, bgez },{1, bnz },{1, bz }
};
static const tms32010_opcode opcode_7F[32]=
@ -770,7 +793,10 @@ static const tms32010_opcode opcode_7F[32]=
/*98*/ {0, illegal },{0, illegal },{0, illegal },{0, illegal },{2, push },{2, pop },{0, illegal },{0, illegal }
};
INLINE int add_branch_cycle(tms32010_state *cpustate)
{
return opcode_main[cpustate->opcode.b.h].cycles;
}
/****************************************************************************
* Inits CPU emulation
@ -839,7 +865,7 @@ static int Ext_IRQ(tms32010_state *cpustate)
SET(cpustate, INTM_FLAG);
PUSH_STACK(cpustate, cpustate->PC);
cpustate->PC = 0x0002;
return (3); /* 3 cycles used due to PUSH and DINT operation ? */
return (opcode_7F[0x1c].cycles + opcode_7F[0x01].cycles); /* 3 cycles used due to PUSH and DINT operation ? */
}
return (0);
}
@ -1002,7 +1028,7 @@ CPU_GET_INFO( tms32010 )
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "TMS32010"); break;
case DEVINFO_STR_FAMILY: strcpy(info->s, "Texas Instruments TMS32010"); break;
case DEVINFO_STR_VERSION: strcpy(info->s, "1.30"); break;
case DEVINFO_STR_VERSION: strcpy(info->s, "1.31"); break;
case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Tony La Porta"); break;

16
src/mame/drivers/coolpool.c
View File

@ -137,6 +137,11 @@ static void coolpool_from_shiftreg(const address_space *space, UINT32 address, U
static MACHINE_RESET( amerdart )
{
coolpool_state *state = (coolpool_state *)machine->driver_data;
state->maincpu = machine->device("maincpu");
state->dsp = machine->device("dsp");
nvram_write_enable = 0;
}
@ -202,6 +207,15 @@ static WRITE16_HANDLER( nvram_thrash_data_w )
*
*************************************/
static TIMER_DEVICE_CALLBACK( amerdart_audio_int_gen )
{
coolpool_state *state = (coolpool_state *)timer.machine->driver_data;
cpu_set_input_line(state->dsp, 0, ASSERT_LINE);
cpu_set_input_line(state->dsp, 0, CLEAR_LINE);
}
static WRITE16_HANDLER( amerdart_misc_w )
{
logerror("%08x:IOP_system_w %04x\n",cpu_get_pc(space->cpu),data);
@ -862,7 +876,7 @@ static MACHINE_DRIVER_START( amerdart )
MDRV_CPU_PROGRAM_MAP(amerdart_dsp_pgm_map)
/* Data Map is internal to the CPU */
MDRV_CPU_IO_MAP(amerdart_dsp_io_map)
MDRV_CPU_PERIODIC_INT(irq0_line_pulse, 14400)
MDRV_TIMER_ADD_SCANLINE("audioint", amerdart_audio_int_gen, "screen", 0, 1)
MDRV_MACHINE_RESET(amerdart)
MDRV_NVRAM_HANDLER(generic_0fill)

3
src/mame/includes/coolpool.h
View File

@ -21,4 +21,7 @@ public:
UINT16 result;
UINT16 lastresult;
running_device *maincpu;
running_device *dsp;
};