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Demacro-ize main.c

This commit is contained in:
twinaphex 2014-12-11 02:29:51 +01:00
parent c78a0dd39b
commit 0bc2a111d7
1 changed files with 47 additions and 52 deletions
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99
main.c
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@ -51,50 +51,45 @@ char save_path[512];
void trigger_ext_event(void);
#define check_count(count_var) \
if(count_var < execute_cycles) \
execute_cycles = count_var; \
static void update_timers(irq_type *irq_raised)
{
unsigned i;
for (i = 0; i < 4; i++)
{
if(timer[i].status == TIMER_INACTIVE)
continue;
#define check_timer(timer_number) \
if(timer[timer_number].status == TIMER_PRESCALE) \
check_count(timer[timer_number].count); \
if(timer[i].status != TIMER_CASCADE)
{
timer[i].count -= execute_cycles;
//io_registers[REG_TM##timer_number##D] = -(timer[i].count >> timer[i].prescale);
io_registers[128 + (i * 2)] = -(timer[i].count > timer[i].prescale);
}
#define update_timer(timer_number) \
if(timer[timer_number].status != TIMER_INACTIVE) \
{ \
if(timer[timer_number].status != TIMER_CASCADE) \
{ \
timer[timer_number].count -= execute_cycles; \
io_registers[REG_TM##timer_number##D] = \
-(timer[timer_number].count >> timer[timer_number].prescale); \
} \
\
if(timer[timer_number].count <= 0) \
{ \
if(timer[timer_number].irq == TIMER_TRIGGER_IRQ) \
irq_raised |= IRQ_TIMER##timer_number; \
\
if((timer_number != 3) && \
(timer[timer_number + 1].status == TIMER_CASCADE)) \
{ \
timer[timer_number + 1].count--; \
io_registers[REG_TM0D + (timer_number + 1) * 2] = \
-(timer[timer_number + 1].count); \
} \
\
if(timer_number < 2) \
{ \
if(timer[timer_number].direct_sound_channels & 0x01) \
sound_timer(timer[timer_number].frequency_step, 0); \
\
if(timer[timer_number].direct_sound_channels & 0x02) \
sound_timer(timer[timer_number].frequency_step, 1); \
} \
\
timer[timer_number].count += \
(timer[timer_number].reload << timer[timer_number].prescale); \
} \
} \
if(timer[i].count > 0)
continue;
if(timer[i].irq == TIMER_TRIGGER_IRQ)
*irq_raised |= (8 << i); /*IRQ_TIMER##timer_number */
if((i != 3) && (timer[i + 1].status == TIMER_CASCADE))
{
timer[i + 1].count--;
io_registers[REG_TM0D + (i + 1) * 2] = -(timer[i + 1].count);
}
if(i < 2)
{
if(timer[i].direct_sound_channels & 0x01)
sound_timer(timer[i].frequency_step, 0);
if(timer[i].direct_sound_channels & 0x02)
sound_timer(timer[i].frequency_step, 1);
}
timer[i].count += (timer[i].reload << timer[i].prescale);
}
}
void init_main(void)
{
@ -132,6 +127,7 @@ u32 update_gba(void)
do
{
unsigned i;
cpu_ticks += execute_cycles;
reg[CHANGED_PC_STATUS] = 0;
@ -143,10 +139,7 @@ u32 update_gba(void)
gbc_sound_update = 0;
}
update_timer(0);
update_timer(1);
update_timer(2);
update_timer(3);
update_timers(&irq_raised);
video_count -= execute_cycles;
@ -253,9 +246,7 @@ u32 update_gba(void)
}
}
else
{
dispstat &= ~0x04;
}
io_registers[REG_VCOUNT] = vcount;
}
@ -267,10 +258,14 @@ u32 update_gba(void)
execute_cycles = video_count;
check_timer(0);
check_timer(1);
check_timer(2);
check_timer(3);
for (i = 0; i < 4; i++)
{
if(timer[i].status != TIMER_PRESCALE)
continue;
if(timer[i].count < execute_cycles)
execute_cycles = timer[i].count;
}
} while(reg[CPU_HALT_STATE] != CPU_ACTIVE);
return execute_cycles;