asm.h revision 1.29
1/* $NetBSD: asm.h,v 1.29 2025/01/04 19:02:51 martin Exp $ */ 2/* 3 * Copyright (c) 1982, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)DEFS.h 8.1 (Berkeley) 6/4/93 31 */ 32 33#ifndef _VAX_ASM_H_ 34#define _VAX_ASM_H_ 35 36#define R0 0x001 37#define R1 0x002 38#define R2 0x004 39#define R3 0x008 40#define R4 0x010 41#define R5 0x020 42#define R6 0x040 43#define R7 0x080 44#define R8 0x100 45#define R9 0x200 46#define R10 0x400 47#define R11 0x800 48 49#define _C_LABEL(x) x 50 51#define _ASM_LABEL(x) x 52 53#ifdef __STDC__ 54# define __CONCAT(x,y) x ## y 55# define __STRING(x) #x 56#else 57# define __CONCAT(x,y) x/**/y 58# define __STRING(x) "x" 59#endif 60 61/* let kernels and others override entrypoint alignment */ 62#ifndef _ALIGN_TEXT 63# define _ALIGN_TEXT .p2align 2 64#endif 65 66#define _ENTRY(x, regs) \ 67 .text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs 68 69#ifdef GPROF 70# define _PROF_PROLOGUE \ 71 .data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount) 72#else 73# define _PROF_PROLOGUE 74#endif 75 76#define ENTRY(x, regs) _ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE 77#define NENTRY(x, regs) _ENTRY(_C_LABEL(x), regs) 78#define ASENTRY(x, regs) _ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE 79#define END(x) .size _C_LABEL(x),.-_C_LABEL(x) 80 81#define ALTENTRY(x) .globl _C_LABEL(x); _C_LABEL(x): 82#ifdef _NETBSD_REVISIONID 83#define RCSID(x) .pushsection ".ident","MS",@progbits,1; \ 84 .asciz "$" "NetBSD: " __FILE__ \ 85 " " _NETBSD_REVISIONID " $"; \ 86 .popsection 87#else 88#define RCSID(x) .pushsection ".ident","MS",@progbits,1; \ 89 .asciz x; \ 90 .popsection 91#endif 92 93#ifdef NO_KERNEL_RCSIDS 94#define __KERNEL_RCSID(_n, _s) /* nothing */ 95#else 96#define __KERNEL_RCSID(_n, _s) RCSID(_s) 97#endif 98 99#define WEAK_ALIAS(alias,sym) \ 100 .weak alias; \ 101 alias = sym 102 103/* 104 * STRONG_ALIAS: create a strong alias. 105 */ 106#define STRONG_ALIAS(alias,sym) \ 107 .globl alias; \ 108 alias = sym 109 110#ifdef __STDC__ 111#define WARN_REFERENCES(sym,msg) \ 112 .pushsection .gnu.warning. ## sym; \ 113 .ascii msg; \ 114 .popsection 115#else 116#define WARN_REFERENCES(sym,msg) \ 117 .pushsection .gnu.warning./**/sym; \ 118 .ascii msg; \ 119 .popsection 120#endif /* __STDC__ */ 121 122.macro polyf arg:req degree:req tbladdr:req 123 movf \arg, %r1 124 movzwl \degree, %r2 125 movab \tbladdr, %r3 126 127 movf (%r3)+, %r0 1281: 129 mulf2 %r1, %r0 /* result *= arg */ 130 addf2 (%r3)+, %r0 /* result += c[n] */ 131 sobgtr %r2, 1b 132 clrf %r1 /* r1 is 0 on finish */ 133.endm 134 135.macro polyd arg:req degree:req tbladdr:req 136 movd \arg, %r4 137 movzwl \degree, %r2 138 movab \tbladdr, %r3 139 140 movd (%r3)+, %r0 1411: 142 muld2 %r4, %r0 /* result *= arg */ 143 addd2 (%r3)+, %r0 /* result += c[n] */ 144 sobgtr %r2, 1b 145 clrq %r4 /* r4, r5 are 0 on finish */ 146.endm 147 148#endif /* !_VAX_ASM_H_ */ 149