/* @(#)21060.h	1.5 8/31/92 1 */

#ifndef __21060_DEFINED
#define __21060_DEFINED


void		idle(void);

int		timer_set(unsigned int tperiod, unsigned int tcount);
unsigned int	timer_on(void);
unsigned int	timer_off(void);

int		poll_flag_in(int flag, int mode);
int		set_flag(int flag, int mode);

int test_and_set_semaphore(void *semaphore, int test_value, int set_value, int timeout);
int set_semaphore(void *semaphore, int set_value, int timeout);

int fpack(float);
float funpack(int);

#define READ_FLAG0 0
#define READ_FLAG1 1
#define READ_FLAG2 2
#define READ_FLAG3 3

#define SET_FLAG0 0
#define SET_FLAG1 1
#define SET_FLAG2 2
#define SET_FLAG3 3

#define SET_FLAG 0
#define CLR_FLAG 1
#define TGL_FLAG 2
#define TST_FLAG 3

#define FLAG_IN_LO_TO_HI 0
#define FLAG_IN_HI_TO_LO 1
#define FLAG_IN_HI 2
#define FLAG_IN_LO 3
#define FLAG_IN_TRANSITION 4
#define RETURN_FLAG_STATE 5

#define timer_on() \
        ({ int __temp_ret; \
             asm volatile ("\n\tBIT SET MODE2 32;\n"\
                           "\t%0=TCOUNT;" : "=d" (__temp_ret));\
             __temp_ret;})


#define timer_off() \
        ({ int __temp_ret; \
             asm volatile ("\n\tBIT CLR MODE2 32;\n"\
                           "\t%0=TCOUNT;" : "=d" (__temp_ret));\
             __temp_ret;})


#define timer_set(a,b) \
        ({ int __temp_ret; \
             asm volatile ("\n\tTPERIOD=%1;\n"\
                           "\tTCOUNT=%2;\n"\
                           "\t%0=MODE2;\n"\
                           "\t%0=FEXT %0 by 5:1;": "=&d" (__temp_ret): "d" (a), "d" (b):"TPERIOD", "TCOUNT");\
             __temp_ret;})

/*  Macros for conversion of 16 bit IEEE floating point number  */

#define fpack(a) ({float ___x = (a); int ___b; \
asm volatile (\
"/* This Code enables one to turn a 32 bit floating pt. number to a 16 bit */\n"\
"/* floating point number in C.                                            */\n"\
"%0=fpack %1;": "=d" (___b) : "d" (___x) );\
___b;})


#define funpack(c) ({int ___x = (c); float ___d; \
asm volatile (\
"/* This Code enables one to turn a 16 bit floating pt. number to a 32 bit */\n"\
"/* floating point number in C.                                            */\n"\
"%0=funpack %1;": "=d" (___d) : "d" (___x) );\
___d;})


#endif