/*      $NetBSD: asm.h,v 1.30 2025/01/06 10:46:44 martin Exp $ */
/*
 * Copyright (c) 1982, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)DEFS.h      8.1 (Berkeley) 6/4/93
 */

#ifndef _VAX_ASM_H_
#define _VAX_ASM_H_

#define R0      0x001
#define R1      0x002
#define R2      0x004
#define R3      0x008
#define R4      0x010
#define R5      0x020
#define R6      0x040
#define R7      0x080
#define R8      0x100
#define R9      0x200
#define R10     0x400
#define R11     0x800

#define _C_LABEL(x)     x

#define _ASM_LABEL(x)   x

#ifdef __STDC__
# define __CONCAT(x,y)  x ## y
# define __STRING(x)    #x
#else
# define __CONCAT(x,y)  x/**/y
# define __STRING(x)    "x"
#endif

/* let kernels and others override entrypoint alignment */
#ifndef _ALIGN_TEXT
# define _ALIGN_TEXT .p2align 2
#endif

#define _ENTRY(x, regs) \
        .text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs

#ifdef GPROF
# define _PROF_PROLOGUE \
        .data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount)
#else
# define _PROF_PROLOGUE
#endif

#define ENTRY(x, regs)          _ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE
#define NENTRY(x, regs)         _ENTRY(_C_LABEL(x), regs)
#define ASENTRY(x, regs)        _ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE
#define END(x)                  .size _C_LABEL(x),.-_C_LABEL(x)

#define ALTENTRY(x)             .globl _C_LABEL(x); _C_LABEL(x):
#ifdef _NETBSD_REVISIONID
#define RCSID(x)        .pushsection ".ident","MS",@progbits,1;         \
                        .asciz x;                                       \
                        .ascii "$"; .ascii "NetBSD: "; .ascii __FILE__; \
                        .ascii " "; .ascii _NETBSD_REVISIONID;          \
                        .asciz " $";                                    \
                        .popsection
#else
#define RCSID(x)        .pushsection ".ident","MS",@progbits,1;         \
                        .asciz x;                                       \
                        .popsection
#endif

#ifdef NO_KERNEL_RCSIDS
#define __KERNEL_RCSID(_n, _s)  /* nothing */
#else
#define __KERNEL_RCSID(_n, _s)  RCSID(_s)
#endif

#define WEAK_ALIAS(alias,sym)                                           \
        .weak alias;                                                    \
        alias = sym

/*
 * STRONG_ALIAS: create a strong alias.
 */
#define STRONG_ALIAS(alias,sym)                                         \
        .globl alias;                                                   \
        alias = sym

#ifdef __STDC__
#define WARN_REFERENCES(sym,msg)                                        \
        .pushsection .gnu.warning. ## sym;                              \
        .ascii msg;                                                     \
        .popsection
#else
#define WARN_REFERENCES(sym,msg)                                        \
        .pushsection .gnu.warning./**/sym;                              \
        .ascii msg;                                                     \
        .popsection
#endif /* __STDC__ */

.macro  polyf arg:req degree:req tbladdr:req
        movf    \arg, %r1
        movzwl  \degree, %r2
        movab   \tbladdr, %r3

        movf    (%r3)+, %r0
1:
        mulf2   %r1, %r0                /* result *= arg */
        addf2   (%r3)+, %r0             /* result += c[n] */
        sobgtr  %r2, 1b
        clrf    %r1                     /* r1 is 0 on finish */
.endm

.macro  polyd arg:req degree:req tbladdr:req
        movd    \arg, %r4
        movzwl  \degree, %r2
        movab   \tbladdr, %r3

        movd    (%r3)+, %r0
1:
        muld2   %r4, %r0                /* result *= arg */
        addd2   (%r3)+, %r0             /* result += c[n] */
        sobgtr  %r2, 1b
        clrq    %r4                     /* r4, r5 are 0 on finish */
.endm

#endif /* !_VAX_ASM_H_ */