1*0Sstevel@tonic-gate/* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate/* 23*0Sstevel@tonic-gate * Copyright (c) 1987 Sun Microsystems, Inc. 24*0Sstevel@tonic-gate */ 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate#ident "%Z%%M% %I% %E% SMI" 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate .file "stret.s" 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate#include <sys/asm_linkage.h> 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate#define FROM %o0 33*0Sstevel@tonic-gate#define SIZE %o1 34*0Sstevel@tonic-gate#define TO %i0 35*0Sstevel@tonic-gate#define MEMWORD %o3 /* use o-registers as temps */ 36*0Sstevel@tonic-gate#define TEMP %o4 37*0Sstevel@tonic-gate#define TEMP2 %o5 38*0Sstevel@tonic-gate#define UNIMP 0 39*0Sstevel@tonic-gate#define MASK 0x00000fff 40*0Sstevel@tonic-gate#define STRUCT_VAL_OFF (16*4) 41*0Sstevel@tonic-gate#if STRET4 42*0Sstevel@tonic-gate# define BYTES_PER_MOVE 4 43*0Sstevel@tonic-gate# define LD ld 44*0Sstevel@tonic-gate# define ST st 45*0Sstevel@tonic-gate ENTRY2(.stret4,.stret8) 46*0Sstevel@tonic-gate#endif 47*0Sstevel@tonic-gate#if STRET2 48*0Sstevel@tonic-gate# define BYTES_PER_MOVE 2 49*0Sstevel@tonic-gate# define LD lduh 50*0Sstevel@tonic-gate# define ST sth 51*0Sstevel@tonic-gate ENTRY(.stret2) 52*0Sstevel@tonic-gate#endif 53*0Sstevel@tonic-gate#if STRET1 54*0Sstevel@tonic-gate# define BYTES_PER_MOVE 1 55*0Sstevel@tonic-gate# define LD ldub 56*0Sstevel@tonic-gate# define ST stb 57*0Sstevel@tonic-gate ENTRY(.stret1) 58*0Sstevel@tonic-gate#endif 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate /* 61*0Sstevel@tonic-gate * see if key matches: if not, 62*0Sstevel@tonic-gate * structure value not expected, 63*0Sstevel@tonic-gate * so just return 64*0Sstevel@tonic-gate */ 65*0Sstevel@tonic-gate ld [%i7+8],MEMWORD 66*0Sstevel@tonic-gate and SIZE,MASK,TEMP 67*0Sstevel@tonic-gate sethi %hi(UNIMP),TEMP2 68*0Sstevel@tonic-gate or TEMP,TEMP2,TEMP2 69*0Sstevel@tonic-gate cmp TEMP2,MEMWORD 70*0Sstevel@tonic-gate bne .LE12 71*0Sstevel@tonic-gate .empty 72*0Sstevel@tonic-gate /* 73*0Sstevel@tonic-gate * set expected return value 74*0Sstevel@tonic-gate */ 75*0Sstevel@tonic-gate.L14: 76*0Sstevel@tonic-gate ld [%fp+STRUCT_VAL_OFF],TO /* (DELAY SLOT) */ 77*0Sstevel@tonic-gate /* 78*0Sstevel@tonic-gate * copy the struct using the same loop the compiler does 79*0Sstevel@tonic-gate * for large structure assignment 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate.L15: 82*0Sstevel@tonic-gate subcc SIZE,BYTES_PER_MOVE,SIZE 83*0Sstevel@tonic-gate LD [FROM+SIZE],TEMP 84*0Sstevel@tonic-gate bg .L15 85*0Sstevel@tonic-gate ST TEMP,[TO+SIZE] /* (DELAY SLOT) */ 86*0Sstevel@tonic-gate /* bump return address */ 87*0Sstevel@tonic-gate add %i7,0x4,%i7 88*0Sstevel@tonic-gate.LE12: 89*0Sstevel@tonic-gate jmp %i7+8 90*0Sstevel@tonic-gate restore 91*0Sstevel@tonic-gate 92*0Sstevel@tonic-gate#if STRET4 93*0Sstevel@tonic-gate SET_SIZE(.stret4) 94*0Sstevel@tonic-gate SET_SIZE(.stret8) 95*0Sstevel@tonic-gate#endif 96*0Sstevel@tonic-gate#if STRET2 97*0Sstevel@tonic-gate SET_SIZE(.stret2) 98*0Sstevel@tonic-gate#endif 99*0Sstevel@tonic-gate#if STRET1 100*0Sstevel@tonic-gate SET_SIZE(.stret1) 101*0Sstevel@tonic-gate#endif 102