Motorola DSP56800 Guía de usuario descargar pdf (Pagina 184)

100

101

Inline Assembly Language and Intrinsics

Intrinsic Functions

184

Targeting MC56F83xx/DSP5685x Controllers

#pragma section DATA_INT_MODULO begin

int int_buf[10];

#pragma section DATA_INT_MODULO end

/* Convenient defines for modulo descriptors */

#define M0 0

#define M1 1

int main ( void )

{

int i;

/* Modulo buffer will be initialized. R0 will be the modulo pointer

__mod_init(M0, (void *)&int_buf[0], 10, sizeof(int));

/* Write the modulo control register */

__mod_start();

/* Write int_buf[0] through int_buf[9]. R0 initially points at

int_buf[0] and wraps when the pointer value exceeds int_buf[9]. The

pointer is updated by 1 unit each time through the loop */

for ( i=0; i<100; i++ )

{

*((int *)__mod_access(M0))

= i;

__mod_update(M0, 1);

}

/* Reset modulo control register to linear addressing mode */

__mod_stop();

}

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