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Haze: Improved 32x irq behaviour (not worth)

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This commit is contained in:
Angelo Salese 2010-09-29 09:46:19 +00:00
parent ea883ba417
commit 13dce3ebe6
1 changed files with 27 additions and 4 deletions
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31
src/mame/drivers/megadriv.c
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@ -117,6 +117,11 @@ static int sh2_master_cmdint_enable, sh2_slave_cmdint_enable;
static int sh2_master_pwmint_enable, sh2_slave_pwmint_enable;
static int sh2_hint_in_vbl;
static int sh2_master_vint_pending;
static int sh2_slave_vint_pending;
void _32x_check_irqs(running_machine* machine);
#define SH2_VRES_IRQ_LEVEL 14
#define SH2_VINT_IRQ_LEVEL 12
#define SH2_HINT_IRQ_LEVEL 10
@ -2643,11 +2648,13 @@ static WRITE16_HANDLER( _32x_68k_a15102_w )
if (data&0x1)
{
if (sh2_master_cmdint_enable) cpu_set_input_line(_32x_master_cpu,SH2_CINT_IRQ_LEVEL,ASSERT_LINE);
else printf("master cmdint when masked!\n");
}
if (data&0x2)
{
if (sh2_slave_cmdint_enable) cpu_set_input_line(_32x_slave_cpu,SH2_CINT_IRQ_LEVEL,ASSERT_LINE);
else printf("slave cmdint when masked!\n");
}
}
}
@ -3028,6 +3035,8 @@ static WRITE16_HANDLER( _32x_sh2_master_4000_w )
if (sh2_master_hint_enable) printf("sh2_master_hint_enable enable!\n");
//if (sh2_master_pwmint_enable) printf("sh2_master_pwn_enable enable!\n");
_32x_check_irqs(space->machine);
}
}
@ -3065,6 +3074,8 @@ static WRITE16_HANDLER( _32x_sh2_slave_4000_w )
if (sh2_slave_hint_enable) printf("sh2_slave_hint_enable enable!\n");
//if (sh2_slave_pwmint_enable) printf("sh2_slave_pwm_enable enable!\n");
_32x_check_irqs(space->machine);
}
}
@ -3217,8 +3228,8 @@ static WRITE16_HANDLER( _32x_sh2_slave_4014_w ) { cpu_set_input_line(_32x_slave_
// VINT (vertical interrupt) clear
/**********************************************************************************************/
static WRITE16_HANDLER( _32x_sh2_master_4016_w ){cpu_set_input_line(_32x_master_cpu,SH2_VINT_IRQ_LEVEL,CLEAR_LINE);}
static WRITE16_HANDLER( _32x_sh2_slave_4016_w ) { cpu_set_input_line(_32x_slave_cpu, SH2_VINT_IRQ_LEVEL,CLEAR_LINE);}
static WRITE16_HANDLER( _32x_sh2_master_4016_w ){ sh2_master_vint_pending = 0; _32x_check_irqs(space->machine); }
static WRITE16_HANDLER( _32x_sh2_slave_4016_w ) { sh2_slave_vint_pending = 0; _32x_check_irqs(space->machine); }
/**********************************************************************************************/
// SH2 side 4018
@ -5876,6 +5887,16 @@ static TIMER_DEVICE_CALLBACK( render_timer_callback )
}
}
void _32x_check_irqs(running_machine* machine)
{
if (sh2_master_vint_enable && sh2_master_vint_pending) cpu_set_input_line(_32x_master_cpu,SH2_VINT_IRQ_LEVEL,ASSERT_LINE);
else cpu_set_input_line(_32x_master_cpu,SH2_VINT_IRQ_LEVEL,CLEAR_LINE);
if (sh2_slave_vint_enable && sh2_slave_vint_pending) cpu_set_input_line(_32x_slave_cpu,SH2_VINT_IRQ_LEVEL,ASSERT_LINE);
else cpu_set_input_line(_32x_slave_cpu,SH2_VINT_IRQ_LEVEL,CLEAR_LINE);
}
static TIMER_DEVICE_CALLBACK( scanline_timer_callback )
{
@ -5908,8 +5929,9 @@ static TIMER_DEVICE_CALLBACK( scanline_timer_callback )
// 32x interrupt!
if (_32x_is_connected)
{
if (sh2_master_vint_enable) cpu_set_input_line(_32x_master_cpu,SH2_VINT_IRQ_LEVEL,ASSERT_LINE);
if (sh2_slave_vint_enable) cpu_set_input_line(_32x_slave_cpu,SH2_VINT_IRQ_LEVEL,ASSERT_LINE);
sh2_master_vint_pending = 1;
sh2_slave_vint_pending = 1;
_32x_check_irqs(timer.machine);
}
}
@ -6721,6 +6743,7 @@ DRIVER_INIT( _32x )
sh2_master_hint_enable = sh2_slave_hint_enable = 0;
sh2_master_cmdint_enable = sh2_slave_cmdint_enable = 0;
sh2_master_pwmint_enable = sh2_slave_pwmint_enable = 0;
sh2_master_vint_pending = sh2_slave_vint_pending = 0;
// start in a reset state
sh2_are_running = 0;