#ifndef __MINITHREAD_MD_H_
#define __MINITHREAD_MD_H_

/*
 * minithread_md.h:  
 *
 * Machine dependent routines for the minithread package.
 * These routines support Alphas running DIGITAL Unix.
 */

/*
 * Basic register state that must be saved and restored across
 * context switches. All other registers (i.e., arguments, temps, etc)
 * are saved and restored by the compiler.
 */

typedef struct initial_stack_state {
    void *initial_proc;         /* s0 */
    void *initial_arg;          /* s1 */
    void *body_proc;            /* s2 */
    void *body_arg;             /* s3 */
    void *finally_proc;         /* s4 */
    void *finally_arg;          /* s5 */
    void *unused1;              /* s6 */
    void *unused2[8];           /* $f2 - $f9 */
    void *unused3;              /* gp */
    void *root_proc;            /* ra */
    void *unused4;              /* to make the structure quad aligned */
} *initial_stack_state_t;

typedef void *stack_pointer_t;

#define STACK_GROWS_DOWN        1
#define STACKSIZE               (16 * 1024)
#define STACKALIGN              07

#define TAS_LENGTH     5    /* 4 instructions in atomic_test_and_set, +1 for slop */
#define INSTR_LENGTH   4    /* 4 bytes per instruction */

#define ADDR_TO_INT(addr)	(long long int)(addr)

#define MINITHREAD_ROOT         (void *) minithread_root

#endif /* __MINITHREAD_MD_H_ */