/* @(#)stack.h	1.2 5/14/92 1 */

/*  This file provides macros for stack save and restore
    in assembly language */


#ifndef __STACK_DEFINED
#define __STACK_DEFINED


#ifdef	__DMSTACK__		/*Set by C Compiler*/
#define frame_ptr I6
#define stack_ptr I7

/*  These routines push/pop values to/from the stack*/
#define get(a,b) a=DM(b,I7)
#define put(a) DM(I7,-1)=a
#define alter(a) MODIFY(I7,a)

/*  This routine reads a value from the stack (relative to the frame)*/
#define reads(a,b) a=DM(b,I6)
#endif

#ifdef	__PMSTACK__		/*Set by C Compiler*/
#define frame_ptr I14
#define stack_ptr I15

/*These routines push/pop values to/from the stack*/
#define get(a,b) a=PM(b,I15)
#define put(a) PM(I15,-1)=a
#define alter(a) MODIFY(I15,a)

/*This routine reads a value from the stack (relative to the frame)*/
#define reads(a,b) a=PM(b,I14)
#endif


#endif