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) 2000 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate #include <stdlib.h> 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <fcode/private.h> 34*0Sstevel@tonic-gate #include <fcode/log.h> 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * the external start point for this goo 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate void 41*0Sstevel@tonic-gate push_ds(fcode_env_t *env, fstack_t d) 42*0Sstevel@tonic-gate { 43*0Sstevel@tonic-gate PUSH(DS, d); 44*0Sstevel@tonic-gate } 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate fstack_t 47*0Sstevel@tonic-gate pop_ds(fcode_env_t *env) 48*0Sstevel@tonic-gate { 49*0Sstevel@tonic-gate return (POP(DS)); 50*0Sstevel@tonic-gate } 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate void 53*0Sstevel@tonic-gate push_rs(fcode_env_t *env, fstack_t d) 54*0Sstevel@tonic-gate { 55*0Sstevel@tonic-gate PUSH(RS, d); 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate fstack_t 59*0Sstevel@tonic-gate pop_rs(fcode_env_t *env) 60*0Sstevel@tonic-gate { 61*0Sstevel@tonic-gate return (POP(RS)); 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate /* 65*0Sstevel@tonic-gate * Pushes a C string on the stack. 66*0Sstevel@tonic-gate */ 67*0Sstevel@tonic-gate void 68*0Sstevel@tonic-gate push_a_string(fcode_env_t *env, char *str) 69*0Sstevel@tonic-gate { 70*0Sstevel@tonic-gate if (str) { 71*0Sstevel@tonic-gate PUSH(DS, (fstack_t)str); 72*0Sstevel@tonic-gate PUSH(DS, strlen(str)); 73*0Sstevel@tonic-gate } else { 74*0Sstevel@tonic-gate PUSH(DS, 0); 75*0Sstevel@tonic-gate PUSH(DS, 0); 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate } 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate /* 80*0Sstevel@tonic-gate * Pops a (potentially null) string off the stack. 81*0Sstevel@tonic-gate */ 82*0Sstevel@tonic-gate char * 83*0Sstevel@tonic-gate pop_a_string(fcode_env_t *env, int *lenp) 84*0Sstevel@tonic-gate { 85*0Sstevel@tonic-gate int len; 86*0Sstevel@tonic-gate char *str; 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate len = POP(DS); 89*0Sstevel@tonic-gate str = (char *)POP(DS); 90*0Sstevel@tonic-gate if (len == 0) 91*0Sstevel@tonic-gate str = NULL; 92*0Sstevel@tonic-gate else if (str == NULL) 93*0Sstevel@tonic-gate len = 0; 94*0Sstevel@tonic-gate if (lenp) 95*0Sstevel@tonic-gate *lenp = len; 96*0Sstevel@tonic-gate return (str); 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate /* 100*0Sstevel@tonic-gate * Pops & strdup's a string off the stack, handles NULL strings. 101*0Sstevel@tonic-gate */ 102*0Sstevel@tonic-gate char * 103*0Sstevel@tonic-gate pop_a_duped_string(fcode_env_t *env, int *lenp) 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate char *str; 106*0Sstevel@tonic-gate 107*0Sstevel@tonic-gate str = pop_a_string(env, lenp); 108*0Sstevel@tonic-gate if (str) 109*0Sstevel@tonic-gate return (STRDUP(str)); 110*0Sstevel@tonic-gate return (NULL); 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate /* 114*0Sstevel@tonic-gate * Push Forth Double type. 115*0Sstevel@tonic-gate */ 116*0Sstevel@tonic-gate void 117*0Sstevel@tonic-gate push_double(fcode_env_t *env, dforth_t d) 118*0Sstevel@tonic-gate { 119*0Sstevel@tonic-gate fstack_t lo, hi; 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate lo = DFORTH_LO(d); 122*0Sstevel@tonic-gate hi = DFORTH_HI(d); 123*0Sstevel@tonic-gate PUSH(DS, lo); 124*0Sstevel@tonic-gate PUSH(DS, hi); 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate /* 128*0Sstevel@tonic-gate * Pop Forth Double type. 129*0Sstevel@tonic-gate */ 130*0Sstevel@tonic-gate dforth_t 131*0Sstevel@tonic-gate pop_double(fcode_env_t *env) 132*0Sstevel@tonic-gate { 133*0Sstevel@tonic-gate fstack_t lo, hi; 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate hi = POP(DS); 136*0Sstevel@tonic-gate lo = POP(DS); 137*0Sstevel@tonic-gate return (MAKE_DFORTH(hi, lo)); 138*0Sstevel@tonic-gate } 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate /* 141*0Sstevel@tonic-gate * Peek at top of stack Forth Double type. 142*0Sstevel@tonic-gate */ 143*0Sstevel@tonic-gate dforth_t 144*0Sstevel@tonic-gate peek_double(fcode_env_t *env) 145*0Sstevel@tonic-gate { 146*0Sstevel@tonic-gate dforth_t a; 147*0Sstevel@tonic-gate 148*0Sstevel@tonic-gate a = pop_double(env); 149*0Sstevel@tonic-gate push_double(env, a); 150*0Sstevel@tonic-gate return (a); 151*0Sstevel@tonic-gate } 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate void 154*0Sstevel@tonic-gate run_fcode(fcode_env_t *env, uchar_t *buff, int len) 155*0Sstevel@tonic-gate { 156*0Sstevel@tonic-gate int i; 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate /* 159*0Sstevel@tonic-gate * Really just checking to see if buff is all ascii characters. 160*0Sstevel@tonic-gate * Fcode normally starts with 0xfd, so for fcode, this should be 161*0Sstevel@tonic-gate * a fast check. 162*0Sstevel@tonic-gate */ 163*0Sstevel@tonic-gate for (i = 0; i < len; i++) 164*0Sstevel@tonic-gate if (buff[i] >= 0x80) 165*0Sstevel@tonic-gate break; 166*0Sstevel@tonic-gate PUSH(DS, (fstack_t)buff); 167*0Sstevel@tonic-gate if (i < len) { 168*0Sstevel@tonic-gate /* Non-ascii found, probably Fcode */ 169*0Sstevel@tonic-gate PUSH(DS, (fstack_t)1); 170*0Sstevel@tonic-gate byte_load(env); 171*0Sstevel@tonic-gate } else { 172*0Sstevel@tonic-gate /* All ascii found, probably ascii */ 173*0Sstevel@tonic-gate PUSH(DS, len); 174*0Sstevel@tonic-gate fevaluate(env); 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate void 179*0Sstevel@tonic-gate run_fcode_from_file(fcode_env_t *env, char *fname, int aout_flag) 180*0Sstevel@tonic-gate { 181*0Sstevel@tonic-gate uchar_t *p; 182*0Sstevel@tonic-gate int len; 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate push_a_string(env, fname); 185*0Sstevel@tonic-gate load_file(env); 186*0Sstevel@tonic-gate len = POP(DS); 187*0Sstevel@tonic-gate p = (uchar_t *)POP(DS); 188*0Sstevel@tonic-gate if (aout_flag) { 189*0Sstevel@tonic-gate p += 0x20; 190*0Sstevel@tonic-gate len -= 0x20; 191*0Sstevel@tonic-gate } 192*0Sstevel@tonic-gate run_fcode(env, p, len); 193*0Sstevel@tonic-gate } 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate fcode_env_t * 196*0Sstevel@tonic-gate clone_environment(fcode_env_t *src, void *private) 197*0Sstevel@tonic-gate { 198*0Sstevel@tonic-gate fcode_env_t *env; 199*0Sstevel@tonic-gate 200*0Sstevel@tonic-gate if (!src) { 201*0Sstevel@tonic-gate src = initial_env; 202*0Sstevel@tonic-gate src->private = private; 203*0Sstevel@tonic-gate return (src); 204*0Sstevel@tonic-gate } 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate #if 0 207*0Sstevel@tonic-gate src->private = private; 208*0Sstevel@tonic-gate if (src->my_self || src->state) { 209*0Sstevel@tonic-gate log_message(MSG_WARN, "Can't clone an active instance or" 210*0Sstevel@tonic-gate " compile state!\n"); 211*0Sstevel@tonic-gate return (NULL); 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate log_message(MSG_WARN, "Warning: Device-tree state is shared!\n"); 215*0Sstevel@tonic-gate #endif 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate env = MALLOC(sizeof (fcode_env_t)); 218*0Sstevel@tonic-gate memcpy(env, src, sizeof (fcode_env_t)); 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate #if 0 221*0Sstevel@tonic-gate env->table = MALLOC((MAX_FCODE + 1) * sizeof (fcode_token)); 222*0Sstevel@tonic-gate memcpy(env->table, src->table, (MAX_FCODE + 1) * sizeof (fcode_token)); 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate /* 225*0Sstevel@tonic-gate * Note that cloning the dictionary doesn't make sense unless the 226*0Sstevel@tonic-gate * ptrs + XT's in the dictionary are relative to BASE. 227*0Sstevel@tonic-gate */ 228*0Sstevel@tonic-gate env->base = MALLOC(dict_size); 229*0Sstevel@tonic-gate memcpy(env->base, src->base, dict_size); 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate env->here = src->base - (uchar_t *)src + env->base; 232*0Sstevel@tonic-gate #endif 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate env->ds0 = MALLOC(stack_size * sizeof (fstack_t)); 235*0Sstevel@tonic-gate memcpy(env->ds0, src->ds0, stack_size * sizeof (fstack_t)); 236*0Sstevel@tonic-gate env->ds = src->ds - src->ds0 + env->ds0; 237*0Sstevel@tonic-gate 238*0Sstevel@tonic-gate env->rs0 = MALLOC(stack_size * sizeof (fstack_t)); 239*0Sstevel@tonic-gate memcpy(env->rs0, src->rs0, stack_size * sizeof (fstack_t)); 240*0Sstevel@tonic-gate env->rs = src->rs - src->rs0 + env->rs0; 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate env->order = MALLOC(MAX_ORDER * sizeof (token_t)); 243*0Sstevel@tonic-gate memcpy(env->order, src->order, MAX_ORDER * sizeof (token_t)); 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate env->input = MALLOC(sizeof (input_typ)); 246*0Sstevel@tonic-gate 247*0Sstevel@tonic-gate env->catch_frame = 0; 248*0Sstevel@tonic-gate 249*0Sstevel@tonic-gate IP = 0; 250*0Sstevel@tonic-gate 251*0Sstevel@tonic-gate return (env); 252*0Sstevel@tonic-gate } 253*0Sstevel@tonic-gate 254*0Sstevel@tonic-gate void 255*0Sstevel@tonic-gate destroy_environment(fcode_env_t *env) 256*0Sstevel@tonic-gate { 257*0Sstevel@tonic-gate FREE(env->input); 258*0Sstevel@tonic-gate FREE(env->order); 259*0Sstevel@tonic-gate FREE(env->ds0); 260*0Sstevel@tonic-gate FREE(env->rs0); 261*0Sstevel@tonic-gate #if 0 262*0Sstevel@tonic-gate FREE(env->base); 263*0Sstevel@tonic-gate FREE(env->table); 264*0Sstevel@tonic-gate #endif 265*0Sstevel@tonic-gate FREE(env); 266*0Sstevel@tonic-gate 267*0Sstevel@tonic-gate if (env == initial_env) { 268*0Sstevel@tonic-gate /* This call only happens internally */ 269*0Sstevel@tonic-gate 270*0Sstevel@tonic-gate initial_env = NULL; 271*0Sstevel@tonic-gate /* You had better not exercise the engine anymore! */ 272*0Sstevel@tonic-gate } 273*0Sstevel@tonic-gate } 274