Spc_Cpu.cpp File Reference

#include "Snes_Spc.h"
#include <string.h>
#include "blargg_source.h"
#include "Spc_Cpu.h"

Macros
#define	RAM   (m.ram.ram)
#define	REGS   (m.smp_regs [0])
#define	REGS_IN   (m.smp_regs [1])
#define	IF_0_THEN_256(n)
#define	SPC_MORE_ACCURACY   0
#define	TIMER_DIV(t, n)
#define	TIMER_MUL(t, n)
#define	RUN_DSP(time, offset)
#define	MEM_ACCESS(time, addr)
#define	SPC_CPU_RUN_FUNC
#define	SPC_CPU_RUN_FUNC_END

Variables
int const	max_reg_time = 29
int const	no_read_before_write = 0x2000
int const	cpu_lag_max = 12 - 1

Macro Definition Documentation

IF_0_THEN_256

#define IF_0_THEN_256

(

n

)

Value:

((uint8_t) ((n) - 1) + 1)

MEM_ACCESS

#define MEM_ACCESS	(		time,
			addr )

Value:

check( !check_echo_access( (uint16_t) addr ) );

RAM

#define RAM   (m.ram.ram)

REGS

#define REGS   (m.smp_regs [0])

REGS_IN

#define REGS_IN   (m.smp_regs [1])

RUN_DSP

#define RUN_DSP	(		time,
			offset )

Value:

int count = (time) - (offset) - m.dsp_time;\
if ( count >= 0 )\
{\
        int clock_count = (count & ~(clocks_per_sample - 1)) + clocks_per_sample;\
        m.dsp_time += clock_count;\
        dsp.run( clock_count );\
}

SPC_CPU_RUN_FUNC

#define SPC_CPU_RUN_FUNC

Value:

uint8_t* Snes_Spc::run_until_( time_t end_time )\
{\
        rel_time_t rel_time = m.spc_time - end_time;\
        assert( rel_time <= 0 );\
        m.spc_time = end_time;\
        m.dsp_time += rel_time;\
        m.timers [0].next_time += rel_time;\
        m.timers [1].next_time += rel_time;\
        m.timers [2].next_time += rel_time;

SPC_CPU_RUN_FUNC_END

#define SPC_CPU_RUN_FUNC_END

Value:

        m.spc_time += rel_time;\
        m.dsp_time -= rel_time;\
        m.timers [0].next_time -= rel_time;\
        m.timers [1].next_time -= rel_time;\
        m.timers [2].next_time -= rel_time;\
        assert( m.spc_time <= end_time );\
        return &REGS [r_cpuio0];\
}

SPC_MORE_ACCURACY

#define SPC_MORE_ACCURACY   0

TIMER_DIV

#define TIMER_DIV	(		t,
			n )

Value:

((n) / t->prescaler)

TIMER_MUL

#define TIMER_MUL	(		t,
			n )

Value:

((n) * t->prescaler)

Variable Documentation

cpu_lag_max

int const cpu_lag_max = 12 - 1

max_reg_time

int const max_reg_time = 29

no_read_before_write

int const no_read_before_write = 0x2000