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/* Copyright (c) 1991 NeXT Computer, Inc. All rights reserved.
*
* File: architecture/m88k/reg_help.h
* Author: Mike DeMoney, NeXT Computer, Inc.
*
* This header file defines cpp macros useful for defining
* machine register and doing machine-level operations.
*
* HISTORY
* 23-Jan-91 Mike DeMoney (mike@next.com)
* Created.
*/
#ifndef _ARCH_M88K_REG_HELP_H_
#define _ARCH_M88K_REG_HELP_H_
#import <architecture/nrw/reg_help.h>
/* Stack pointer must always be a multiple of 16 */
#define STACK_INCR 16
#define ROUND_FRAME(x) ((((unsigned)(x)) + STACK_INCR - 1) & ~(STACK_INCR-1))
/*
* REG_PAIR_DEF -- define a register pair
* Register pairs are appropriately aligned to allow access via
* ld.d and st.d.
*
* Usage:
* struct foo {
* REG_PAIR_DEF(
* bar_t *, barp,
* afu_t, afu
* );
* };
*
* Access to individual entries of the pair is via the REG_PAIR
* macro (below).
*/
#define REG_PAIR_DEF(type0, name0, type1, name1) \
struct { \
type0 name0 __attribute__(( aligned(8) )); \
type1 name1; \
} name0##_##name1
/*
* REG_PAIR -- Macro to define names for accessing individual registers
* of register pairs.
*
* Usage:
* arg0 is first element of pair
* arg1 is second element of pair
* arg2 is desired element of pair
* eg:
* #define foo_barp REG_PAIR(barp, afu, afu)
*/
#define REG_PAIR(name0, name1, the_name) \
name0##_##name1.the_name
#endif _ARCH_M88K_REG_HELP_H_
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.