////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: zparser.cpp
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// Filename: zparser.cpp
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//
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//
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// Project: Zip CPU -- a small, lightweight, RISC CPU core
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// Project: Zip CPU -- a small, lightweight, RISC CPU core
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//
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//
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// Purpose:
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// Purpose:
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//
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//
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// Creator: Dan Gisselquist, Ph.D.
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Tecnology, LLC
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// Gisselquist Tecnology, LLC
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Copyright (C) 2015, Gisselquist Technology, LLC
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// Copyright (C) 2015, Gisselquist Technology, LLC
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//
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//
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// This program is free software (firmware): you can redistribute it and/or
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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// your option) any later version.
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//
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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// for more details.
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//
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//
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// You should have received a copy of the GNU General Public License along
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// You should have received a copy of the GNU General Public License along
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// with this program. (It's in the $(ROOT)/doc directory, run make with no
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// with this program. (It's in the $(ROOT)/doc directory, run make with no
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// target there if the PDF file isn't present.) If not, see
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// target there if the PDF file isn't present.) If not, see
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// <http://www.gnu.org/licenses/> for a copy.
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// <http://www.gnu.org/licenses/> for a copy.
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//
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//
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// License: GPL, v3, as defined and found on www.gnu.org,
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <string.h>
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#include <string.h>
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#include <ctype.h>
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#include <ctype.h>
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#include <strings.h>
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#include <strings.h>
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#include "zparser.h"
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#include "zparser.h"
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#include "zopcodes.h"
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#include "zopcodes.h"
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typedef ZPARSER::ZIPI ZIPI; // A Zip Instruction (i.e. uint32)
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typedef ZPARSER::ZIPI ZIPI; // A Zip Instruction (i.e. uint32)
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bool ZPARSER::iscomment(const char *line) const {
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bool ZPARSER::iscomment(const char *line) const {
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const char *sp = line;
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const char *sp = line;
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do {
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do {
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if (*sp == '\0')
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if (*sp == '\0')
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return true;
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return true;
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else if (*sp == ';')
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else if (*sp == ';')
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return true;
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return true;
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else if (*sp == '#')
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else if (*sp == '#')
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return true;
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return true;
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else if (*sp == '\n')
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else if (*sp == '\n')
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return true;
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return true;
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else if (*sp == '\r')
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else if (*sp == '\r')
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return true;
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return true;
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else if ((*sp == '/')&&(sp[1] == '/'))
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else if ((*sp == '/')&&(sp[1] == '/'))
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return true;
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return true;
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else if (!isspace(*sp))
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else if (!isspace(*sp))
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return false;
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return false;
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} while(*sp++);
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} while(*sp++);
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|
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return true;
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return true;
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}
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}
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bool ZPARSER::islabel(const char *line) const {
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bool ZPARSER::islabel(const char *line) const {
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const char *sp = line;
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const char *sp = line;
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if (isspace(*line))
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if (isspace(*line))
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return false;
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return false;
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if (!isalpha(*line))
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if (!isalpha(*line))
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return false;
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return false;
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while((isalpha(*sp))||(isdigit(*sp))||(*sp=='_'))
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while((isalpha(*sp))||(isdigit(*sp))||(*sp=='_'))
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sp++;
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sp++;
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if (*sp != ':')
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if (*sp != ':')
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return false;
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return false;
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sp++;
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sp++;
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return iscomment(sp);
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return iscomment(sp);
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}
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}
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bool ZPARSER::parse_op(const char *line, ZPARSER::ZIPA pc,
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bool ZPARSER::parse_op(const char *line, ZPARSER::ZIPA pc,
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ZPARSER::ZIPI &ins, const unsigned lineno) const {
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ZPARSER::ZIPI &ins, const unsigned lineno) const {
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const char *sp = line;
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const char *sp = line;
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char cpy[128], *cp = cpy, *point, *dollar, *plus, *comma,
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char cpy[128], *cp = cpy, *point, *dollar, *plus, *comma,
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*opc, *opb;
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*opc, *opb;
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ZPARSER::ZIPREG ra = ZPARSER::ZIP_Rnone, rb = ZPARSER::ZIP_Rnone;
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ZPARSER::ZIPREG ra = ZPARSER::ZIP_Rnone, rb = ZPARSER::ZIP_Rnone;
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ZIPCOND cnd = ZIPC_ALWAYS;
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ZIPCOND cnd = ZIPC_ALWAYS;
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ZIPIMM imm = 0;
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ZIPIMM imm = 0;
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bool valid = true;
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bool valid = true;
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|
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if (!isspace(*sp))
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if (!isspace(*sp))
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return false;
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return false;
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|
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while(isspace(*sp))
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while(isspace(*sp))
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sp++;
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sp++;
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// Remove comments from our local copy
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// Remove comments from our local copy
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for(unsigned int i=0; i<sizeof(cpy); i++) {
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for(unsigned int i=0; i<sizeof(cpy); i++) {
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if (*sp == '\0')
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if (*sp == '\0')
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break;
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break;
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else if (*sp == ';')
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else if (*sp == ';')
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break;
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break;
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else if (*sp == '#')
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else if (*sp == '#')
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break;
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break;
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else if (*sp == '\n')
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else if (*sp == '\n')
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break;
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break;
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else if (*sp == '\r')
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else if (*sp == '\r')
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break;
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break;
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else if ((*sp == '/')&&(sp[1] == '/'))
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else if ((*sp == '/')&&(sp[1] == '/'))
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break;
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break;
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*cp++ = *sp++;
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*cp++ = *sp++;
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} if (cp-cpy >= (int)sizeof(cpy))
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} if (cp-cpy >= (int)sizeof(cpy))
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return false;
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return false;
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*cp = '\0';
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*cp = '\0';
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point = strchr(cpy, '.');
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point = strchr(cpy, '.');
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comma = strchr(cpy, ',');
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comma = strchr(cpy, ',');
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plus = strchr(cpy, '+');
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plus = strchr(cpy, '+');
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dollar= strchr(cpy, '$');
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dollar= strchr(cpy, '$');
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// paren = strchr(cpy, '(');
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// paren = strchr(cpy, '(');
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if (point) *point++ = '\0';
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if (point) *point++ = '\0';
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if (comma) *comma++ = '\0';
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if (comma) *comma++ = '\0';
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if (plus) *plus++ = '\0';
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if (plus) *plus++ = '\0';
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if (dollar) *dollar++ = '\0';
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if (dollar) *dollar++ = '\0';
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// if (paren) *paren++ = '\0';
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// if (paren) *paren++ = '\0';
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cp = cpy;
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cp = cpy;
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while(isalpha(*cp))
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while(isalpha(*cp))
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cp++;
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cp++;
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opc = cpy;
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opc = cpy;
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if ((*cp == '\0')&&(point == NULL))
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if ((*cp == '\0')&&(point == NULL))
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cp[1] = '\0';
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cp[1] = '\0';
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*cp = '\0';
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*cp = '\0';
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if ((point)&&(strncasecmp("DAT",point,3)!=0)) {
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if ((point)&&(strncasecmp("DAT",point,3)!=0)) {
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cp = point;
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cp = point;
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while(isalpha(*cp))
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while(isalpha(*cp))
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cp++;
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cp++;
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if (*cp == '\0')
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if (*cp == '\0')
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cp[1] = '\0';
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cp[1] = '\0';
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*cp = '\0';
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*cp = '\0';
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for(int i=1; i<8; i++) {
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for(int i=1; i<8; i++) {
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if (strcasecmp(&zop_ccstr[i][1], point)==0) {
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if (strcasecmp(&zop_ccstr[i][1], point)==0) {
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cnd = (ZIPCOND)i;
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cnd = (ZIPCOND)i;
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break;
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break;
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}
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}
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} if (cnd == ZIPC_ALWAYS) {
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} if (cnd == ZIPC_ALWAYS) {
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printf("ERR: Unrecognized condition, %s\n", point);
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printf("ERR: Unrecognized condition, %s\n", point);
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valid = false;
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valid = false;
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}
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}
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}
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}
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cp++;
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cp++;
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while(isspace(*cp))
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while(isspace(*cp))
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cp++;
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cp++;
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opb = cp;
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opb = cp;
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if (dollar) {
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if (dollar) {
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// Figure out the base
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// Figure out the base
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{
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{
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char *ip = dollar, mxd = 0;
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char *ip = dollar, mxd = 0;
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if ((*ip == '0')&&(toupper(ip[1])=='X'))
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if ((*ip == '0')&&(toupper(ip[1])=='X'))
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imm = strtoul(dollar, NULL, 16);
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imm = strtoul(dollar, NULL, 16);
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else {
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else {
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bool neg = false;
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bool neg = false;
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if (*ip == '-') {
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if (*ip == '-') {
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neg = true;
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neg = true;
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ip++;
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ip++;
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dollar++;
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dollar++;
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}
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}
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while(isdigit(*ip)||((toupper(*ip)>='A')&&(toupper(*ip)<='F'))) {
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while(isdigit(*ip)||((toupper(*ip)>='A')&&(toupper(*ip)<='F'))) {
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if (isalpha(*ip))
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if (isalpha(*ip))
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mxd = (*ip-'a')+10;
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mxd = (*ip-'a')+10;
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else
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else
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mxd = (*ip-'0');
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mxd = (*ip-'0');
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ip++;
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ip++;
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}
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}
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|
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if ((mxd <= 1)&&(*ip=='d'))
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if ((mxd <= 1)&&(*ip=='d'))
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imm = strtoul(dollar, NULL, 2);
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imm = strtoul(dollar, NULL, 2);
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else if ((mxd <= 7)&&((*dollar == '0')||(toupper(*ip)=='O')))
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else if ((mxd <= 7)&&((*dollar == '0')||(toupper(*ip)=='O')))
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imm = strtoul(dollar, NULL, 8);
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imm = strtoul(dollar, NULL, 8);
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else if ((mxd <= 15)&&(toupper(*ip)=='H'))
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else if ((mxd <= 15)&&(toupper(*ip)=='H'))
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imm = strtoul(dollar, NULL, 16);
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imm = strtoul(dollar, NULL, 16);
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else if ((toupper(*ip)=='D')||(*ip == '+')||(isspace(*ip))||(*ip == '(')||(*ip == '\0'))
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else if ((toupper(*ip)=='D')||(*ip == '+')||(isspace(*ip))||(*ip == '(')||(*ip == '\0'))
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imm = atoi(dollar);
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imm = atoi(dollar);
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else {
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else {
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printf("Cannot parse immediate, %s\n", dollar);
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printf("Cannot parse immediate, %s\n", dollar);
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printf("Assuming you meant %d\n", atoi(dollar));
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printf("Assuming you meant %d\n", atoi(dollar));
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imm = atoi(dollar);
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imm = atoi(dollar);
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}
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}
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|
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if (neg)
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if (neg)
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imm = -imm;
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imm = -imm;
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}
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}
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}
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}
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opb = dollar;
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opb = dollar;
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if (plus)
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if (plus)
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opb = plus;
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opb = plus;
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} else
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} else
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imm = 0;
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imm = 0;
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if (*opb) for(int i=31; i>=0; i--) {
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if (*opb) for(int i=31; i>=0; i--) {
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// printf("Checking for match: \'%s\' to %s", opb, zop_regstr[i]);
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// printf("Checking for match: \'%s\' to %s", opb, zop_regstr[i]);
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if (NULL != strcasestr(opb, zop_regstr[i])) {
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if (NULL != strcasestr(opb, zop_regstr[i])) {
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// printf(" --- Match\n");
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// printf(" --- Match\n");
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rb = (ZIPREG)i;
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rb = (ZIPREG)i;
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break;
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break;
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} // else printf(" -- nope\n");
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} // else printf(" -- nope\n");
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} if (comma) for(int i=31; i>=0; i--) {
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} if (comma) for(int i=31; i>=0; i--) {
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// printf("Checking for match: ,%s to %s", comma, zop_regstr[i]);
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// printf("Checking for match: ,%s to %s", comma, zop_regstr[i]);
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if (NULL != strcasestr(comma, zop_regstr[i])) {
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if (NULL != strcasestr(comma, zop_regstr[i])) {
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ra = (ZIPREG)i;
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ra = (ZIPREG)i;
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// printf(" --- Match\n");
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// printf(" --- Match\n");
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break;
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break;
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} // else printf(" -- nope\n");
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} // else printf(" -- nope\n");
|
}
|
}
|
|
|
if (strcasecmp("MOV",opc)!=0) {
|
if (strcasecmp("MOV",opc)!=0) {
|
// Only move instructions can reference user regs
|
// Only move instructions can reference user regs
|
if ((ra != ZIP_Rnone)&&(ra >= ZIP_uR0))
|
if ((ra != ZIP_Rnone)&&(ra >= ZIP_uR0))
|
valid = false;
|
valid = false;
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if ((rb != ZIP_Rnone)&&(rb >= ZIP_uR0))
|
if ((rb != ZIP_Rnone)&&(rb >= ZIP_uR0))
|
valid = false;
|
valid = false;
|
if (!valid)
|
if (!valid)
|
printf("ERR: Only Mov can specify user regs\n");
|
printf("ERR: Only Mov can specify user regs\n");
|
}
|
}
|
|
|
if ((!*opc)&&(strncasecmp("DAT",point,3)==0)) {
|
if ((!*opc)&&(strncasecmp("DAT",point,3)==0)) {
|
ins = strtoul(opb, NULL, 0);
|
ins = strtoul(opb, NULL, 0);
|
valid = true;
|
valid = true;
|
} else if (strcasecmp("CMP",opc)==0) {
|
} else if (strcasecmp("CMP",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_cmp(cnd, imm, rb, ra);
|
ins = op_cmp(cnd, imm, rb, ra);
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else ins = op_cmp(cnd, imm, ra);
|
else ins = op_cmp(cnd, imm, ra);
|
} else if (strcasecmp("TST",opc)==0) {
|
} else if (strcasecmp("TST",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_tst(cnd, imm, rb, ra);
|
ins = op_tst(cnd, imm, rb, ra);
|
else if (!dollar)
|
else if (!dollar)
|
ins = op_tst(cnd, ra);
|
ins = op_tst(cnd, ra);
|
else
|
else
|
ins = op_tst(cnd, imm, ra);
|
ins = op_tst(cnd, imm, ra);
|
} else if (strcasecmp("MOV",opc)==0) {
|
} else if (strcasecmp("MOV",opc)==0) {
|
if ((rb != ZIP_Rnone)&&(ra != ZIP_Rnone))
|
if ((rb != ZIP_Rnone)&&(ra != ZIP_Rnone))
|
ins = op_mov(cnd, imm, rb, ra);
|
ins = op_mov(cnd, imm, rb, ra);
|
else { printf("ERR MOV, ra = %d, rb = %d, imm = %d, cnd = %d\nLine was: %s", (int)ra, (int)rb, (int)imm, (int)cnd, line); valid = false; }
|
else { printf("ERR MOV, ra = %d, rb = %d, imm = %d, cnd = %d\nLine was: %s", (int)ra, (int)rb, (int)imm, (int)cnd, line); valid = false; }
|
} else if (strcasecmp("LDI",opc)==0) {
|
} else if (strcasecmp("LDI",opc)==0) {
|
if ((rb == ZIP_Rnone)&&(cnd == ZIPC_ALWAYS))
|
if ((rb == ZIP_Rnone)&&(cnd == ZIPC_ALWAYS))
|
ins = op_ldi(imm, ra);
|
ins = op_ldi(imm, ra);
|
else valid = false;
|
else valid = false;
|
} else if (strcasecmp("trap",opc)==0) {
|
} else if (strcasecmp("trap",opc)==0) {
|
if ((rb == ZIP_Rnone)&&(rb == ZIP_Rnone))
|
if ((rb == ZIP_Rnone)&&(rb == ZIP_Rnone))
|
ins = op_trap(cnd, imm);
|
ins = op_trap(cnd, imm);
|
else
|
else
|
valid = false;
|
valid = false;
|
} else if (strcasecmp("CLR",opc)==0) {
|
} else if (strcasecmp("CLR",opc)==0) {
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
ins = op_clr(rb); // Good
|
ins = op_clr(rb); // Good
|
else valid = false;
|
else valid = false;
|
} else if ((strcasecmp("NOOP",opc)==0)||(strcasecmp("NOP",opc)==0)) {
|
} else if ((strcasecmp("NOOP",opc)==0)||(strcasecmp("NOP",opc)==0)) {
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
ins = op_noop();
|
ins = op_noop();
|
else { printf("ERR: NOP, ra=%d, rb=%d, dollar = %s\n",
|
else { printf("ERR: NOP, ra=%d, rb=%d, dollar = %s\n",
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
} else if ((strcasecmp("BREAK",opc)==0)||(strcasecmp("BRK",opc)==0)) {
|
} else if ((strcasecmp("BREAK",opc)==0)||(strcasecmp("BRK",opc)==0)) {
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
if ((rb == ZIP_Rnone)&&(ra == ZIP_Rnone)&&(!dollar)&&(cnd == ZIPC_ALWAYS))
|
ins = op_break();
|
ins = op_break();
|
else { printf("ERR: BRK, ra=%d, rb=%d, dollar = %s\n",
|
else { printf("ERR: BRK, ra=%d, rb=%d, dollar = %s\n",
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
(int)ra, (int)rb, (dollar)?"true":"false"); valid = false; }
|
} else if ((strcasecmp("LDIHI",opc)==0)||(strcasecmp("LODIHI",opc)==0)) {
|
} else if ((strcasecmp("LDIHI",opc)==0)||(strcasecmp("LODIHI",opc)==0)) {
|
if ((dollar)&&(ra != ZIP_Rnone))
|
if ((dollar)&&(ra != ZIP_Rnone))
|
ins = op_ldihi(cnd, imm, ra);
|
ins = op_ldihi(cnd, imm, ra);
|
else valid = false;
|
else valid = false;
|
} else if ((strcasecmp("LDILO",opc)==0)||(strcasecmp("LODILO",opc)==0)){
|
} else if ((strcasecmp("LDILO",opc)==0)||(strcasecmp("LODILO",opc)==0)){
|
if ((dollar)&&(ra != ZIP_Rnone))
|
if ((dollar)&&(ra != ZIP_Rnone))
|
ins = op_ldilo(cnd, imm, ra);
|
ins = op_ldilo(cnd, imm, ra);
|
else valid = false;
|
else valid = false;
|
} else if ((strcasecmp("LOD",opc)==0)||(strcasecmp("LOAD",opc)==0)) {
|
} else if ((strcasecmp("LOD",opc)==0)||(strcasecmp("LOAD",opc)==0)) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_lod(cnd,imm,rb,ra);
|
ins = op_lod(cnd,imm,rb,ra);
|
else ins = op_lod(cnd,imm,ra);
|
else ins = op_lod(cnd,imm,ra);
|
} else if ((strcasecmp("STO",opc)==0)||(strcasecmp("STOR",opc)==0)) {
|
} else if ((strcasecmp("STO",opc)==0)||(strcasecmp("STOR",opc)==0)) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_sto(cnd,rb,imm,ra);
|
ins = op_sto(cnd,rb,imm,ra);
|
else ins = op_sto(cnd,rb,imm);
|
else ins = op_sto(cnd,rb,imm);
|
} else if (strcasecmp("SUB",opc)==0) {
|
} else if (strcasecmp("SUB",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_sub(cnd,imm,rb,ra);
|
ins = op_sub(cnd,imm,rb,ra);
|
else ins = op_sub(cnd,imm,ra);
|
else ins = op_sub(cnd,imm,ra);
|
} else if (strcasecmp("AND",opc)==0) {
|
} else if (strcasecmp("AND",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_and(cnd,imm,rb,ra);
|
ins = op_and(cnd,imm,rb,ra);
|
else ins = op_and(cnd,imm,ra);
|
else ins = op_and(cnd,imm,ra);
|
} else if (strcasecmp("ADD",opc)==0) {
|
} else if (strcasecmp("ADD",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_add(cnd,imm,rb,ra);
|
ins = op_add(cnd,imm,rb,ra);
|
else ins = op_add(cnd,imm,ra);
|
else ins = op_add(cnd,imm,ra);
|
} else if (strcasecmp("OR",opc)==0) {
|
} else if (strcasecmp("OR",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_or(cnd,imm,rb,ra);
|
ins = op_or(cnd,imm,rb,ra);
|
else ins = op_or(cnd,imm,ra);
|
else ins = op_or(cnd,imm,ra);
|
} else if (strcasecmp("XOR",opc)==0) {
|
} else if (strcasecmp("XOR",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_xor(cnd,imm,rb,ra);
|
ins = op_xor(cnd,imm,rb,ra);
|
else ins = op_xor(cnd,imm,ra);
|
else ins = op_xor(cnd,imm,ra);
|
} else if ((strcasecmp("LSL",opc)==0)||(strcasecmp("ASL",opc)==0)) {
|
} else if ((strcasecmp("LSL",opc)==0)||(strcasecmp("ASL",opc)==0)) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_lsl(cnd,imm,rb,ra);
|
ins = op_lsl(cnd,imm,rb,ra);
|
else ins = op_lsl(cnd,imm,ra);
|
else ins = op_lsl(cnd,imm,ra);
|
} else if (strcasecmp("ASR",opc)==0) {
|
} else if (strcasecmp("ASR",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_asr(cnd,imm,rb,ra);
|
ins = op_asr(cnd,imm,rb,ra);
|
else ins = op_asr(cnd,imm,ra);
|
else ins = op_asr(cnd,imm,ra);
|
} else if (strcasecmp("LSR",opc)==0) {
|
} else if (strcasecmp("LSR",opc)==0) {
|
if (rb != ZIP_Rnone)
|
if (rb != ZIP_Rnone)
|
ins = op_lsr(cnd,imm,rb,ra);
|
ins = op_lsr(cnd,imm,rb,ra);
|
else ins = op_lsr(cnd,imm,ra);
|
else ins = op_lsr(cnd,imm,ra);
|
} else if (strcasecmp("BR",opc)==0) {
|
} else if (strcasecmp("BR",opc)==0) {
|
if ((dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone))
|
if ((dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone))
|
valid = false;
|
valid = false;
|
else ins = op_bra(cnd, imm);
|
else ins = op_bra(cnd, imm);
|
} else if (strcasecmp("BRA",opc)==0) {
|
} else if (strcasecmp("BRA",opc)==0) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_bra(imm);
|
else ins = op_bra(imm);
|
} else if (strcasecmp("BRZ",opc)==0) {
|
} else if (strcasecmp("BRZ",opc)==0) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_brz(imm);
|
else ins = op_brz(imm);
|
} else if ((strcasecmp("BRNZ",opc)==0)||(strcasecmp("BNZ",opc)==0)) {
|
} else if ((strcasecmp("BRNZ",opc)==0)||(strcasecmp("BNZ",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_bnz(imm);
|
else ins = op_bnz(imm);
|
} else if ((strcasecmp("BRGE",opc)==0)||(strcasecmp("BGE",opc)==0)) {
|
} else if ((strcasecmp("BRGE",opc)==0)||(strcasecmp("BGE",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_bge(imm);
|
else ins = op_bge(imm);
|
} else if ((strcasecmp("BRGT",opc)==0)||(strcasecmp("BGT",opc)==0)) {
|
} else if ((strcasecmp("BRGT",opc)==0)||(strcasecmp("BGT",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_bgt(imm);
|
else ins = op_bgt(imm);
|
} else if (strcasecmp("BRZ",opc)==0) {
|
} else if (strcasecmp("BRZ",opc)==0) {
|
} else if ((strcasecmp("BRLT",opc)==0)||(strcasecmp("BLT",opc)==0)) {
|
} else if ((strcasecmp("BRLT",opc)==0)||(strcasecmp("BLT",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_blt(imm);
|
else ins = op_blt(imm);
|
} else if ((strcasecmp("BRC",opc)==0)||(strcasecmp("BC",opc)==0)) {
|
} else if ((strcasecmp("BRC",opc)==0)||(strcasecmp("BC",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_brc(imm);
|
else ins = op_brc(imm);
|
} else if ((strcasecmp("BRV",opc)==0)||(strcasecmp("BV",opc)==0)) {
|
} else if ((strcasecmp("BRV",opc)==0)||(strcasecmp("BV",opc)==0)) {
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
if ((!dollar)||(ra != ZIP_Rnone)||(rb != ZIP_Rnone)||(cnd != ZIPC_ALWAYS))
|
valid = false;
|
valid = false;
|
else ins = op_brv(imm);
|
else ins = op_brv(imm);
|
} else if (strcasecmp("CLRF",opc)==0) {
|
} else if (strcasecmp("CLRF",opc)==0) {
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(imm==0))
|
if ((ra == ZIP_Rnone)&&(!dollar)&&(imm==0))
|
ins = op_clrf(cnd, rb);
|
ins = op_clrf(cnd, rb);
|
else valid = false;
|
else valid = false;
|
} else if((strcasecmp("HALT",opc)==0)||(strcasecmp("WAIT",opc)==0)) {
|
} else if((strcasecmp("HALT",opc)==0)||(strcasecmp("WAIT",opc)==0)) {
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
ins = op_halt(cnd);
|
ins = op_halt(cnd);
|
else valid = false;
|
else valid = false;
|
} else if (strcasecmp("BUSY",opc)==0) {
|
} else if (strcasecmp("BUSY",opc)==0) {
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
ins = op_busy(cnd);
|
ins = op_busy(cnd);
|
else valid = false;
|
else valid = false;
|
} else if (strcasecmp("RTU",opc)==0) {
|
} else if (strcasecmp("RTU",opc)==0) {
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(imm==0)&&(!comma)&&(!dollar))
|
if ((rb == ZIP_Rnone)&&(ra==ZIP_Rnone)&&(imm==0)&&(!comma)&&(!dollar))
|
ins = op_rtu(cnd);
|
ins = op_rtu(cnd);
|
else { printf("ERRR,RTU, ra=%d,rb=%d,imm=%08x,comma=%s,dollar=%s\n",
|
else { printf("ERRR,RTU, ra=%d,rb=%d,imm=%08x,comma=%s,dollar=%s\n",
|
(int)ra, (int)rb, imm, (comma)?"true":"false",
|
(int)ra, (int)rb, imm, (comma)?"true":"false",
|
(dollar)?"true":"false");
|
(dollar)?"true":"false");
|
valid = false;
|
valid = false;
|
}
|
}
|
} else if (strcasecmp("JMP",opc)==0) {
|
} else if (strcasecmp("JMP",opc)==0) {
|
if ((rb != ZIP_Rnone)&&(!comma))
|
if ((rb != ZIP_Rnone)&&(!comma))
|
ins = op_not(cnd, rb);
|
ins = op_not(cnd, rb);
|
else valid = false;
|
else valid = false;
|
} else if (strcasecmp("NOT",opc)==0) {
|
} else if (strcasecmp("NOT",opc)==0) {
|
if ((rb != ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
if ((rb != ZIP_Rnone)&&(ra==ZIP_Rnone)&&(!comma)&&(!dollar))
|
ins = op_not(cnd, rb);
|
ins = op_not(cnd, rb);
|
else valid = false;
|
else valid = false;
|
} else valid = false;
|
} else valid = false;
|
|
|
return valid;
|
return valid;
|
}
|
}
|
|
|
bool ZPARSER::parse(const char *line, ZPARSER::ZIPA &pc, ZPARSER::ZIPI &instruction, const unsigned int lineno) {
|
bool ZPARSER::parse(const char *line, ZPARSER::ZIPA &pc, ZPARSER::ZIPI &instruction, const unsigned int lineno) {
|
bool v = parse_op(line, pc, instruction, lineno);
|
bool v = parse_op(line, pc, instruction, lineno);
|
pc = pc + 1;
|
pc = pc + 1;
|
return v;
|
return v;
|
}
|
}
|
|
|
#define IMMOP(OP,CND,IMM,A) (((OP&0x0f)<<28)|((A&0x0f)<<24)|((CND&0x07)<<21) \
|
#define IMMOP(OP,CND,IMM,A) (((OP&0x0f)<<28)|((A&0x0f)<<24)|((CND&0x07)<<21) \
|
| (IMM & 0x0fffff))
|
| (IMM & 0x0fffff))
|
|
|
#define DBLREGOP(OP,CND,IMM,B,A) (((OP&0x0f)<<28)|((A&0x0f)<<24) \
|
#define DBLREGOP(OP,CND,IMM,B,A) (((OP&0x0f)<<28)|((A&0x0f)<<24) \
|
|((CND&0x07)<<21)|(1<<20)|((B&0x0f)<<16) \
|
|((CND&0x07)<<21)|(1<<20)|((B&0x0f)<<16) \
|
| (IMM & 0x0ffff))
|
| (IMM & 0x0ffff))
|
|
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
return DBLREGOP(0x0, cnd, imm, b, a);
|
return DBLREGOP(0x0, cnd, imm, b, a);
|
}
|
}
|
|
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI ZPARSER::op_cmp(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
return IMMOP(0x0, cnd, imm, a);
|
return IMMOP(0x0, cnd, imm, a);
|
}
|
}
|
|
|
|
|
ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
return DBLREGOP(0x1, cnd, imm, b, a);
|
return DBLREGOP(0x1, cnd, imm, b, a);
|
} ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
} ZIPI ZPARSER::op_tst(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
return IMMOP(0x1, cnd, imm, a);
|
return IMMOP(0x1, cnd, imm, a);
|
}
|
}
|
|
|
ZIPI ZPARSER::op_mov(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_mov(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI in;
|
ZIPI in;
|
in = (0x02 << 28)|((a&0x0f)<<24)|((cnd&0x07)<<21);
|
in = (0x02 << 28)|((a&0x0f)<<24)|((cnd&0x07)<<21);
|
in |= (a&0x10)<<16;
|
in |= (a&0x10)<<16;
|
in |= (b&0x0f)<<16;
|
in |= (b&0x0f)<<16;
|
in |= (b&0x10)<<11;
|
in |= (b&0x10)<<11;
|
in |= imm & 0x07fff;
|
in |= imm & 0x07fff;
|
return in;
|
return in;
|
}
|
}
|
|
|
|
|
ZIPI ZPARSER::op_ldi(ZIPIMM imm, ZIPREG a) const {
|
ZIPI ZPARSER::op_ldi(ZIPIMM imm, ZIPREG a) const {
|
ZIPI in;
|
ZIPI in;
|
in = ((0x03)<<28) | ((a&0x0f)<<24) | (imm & ((1<<24)-1));
|
in = ((0x03)<<28) | ((a&0x0f)<<24) | (imm & ((1<<24)-1));
|
return in;
|
return in;
|
}
|
}
|
|
|
ZIPI ZPARSER::op_trap(ZIPCOND cnd, ZIPIMM imm) const {
|
ZIPI ZPARSER::op_trap(ZIPCOND cnd, ZIPIMM imm) const {
|
ZIPI in;
|
ZIPI in;
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((0x0e)<<16);
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((0x0e)<<16);
|
in |= (imm & 0x0ffff);
|
in |= (imm & 0x0ffff);
|
return in;
|
return in;
|
}
|
}
|
|
|
ZIPI ZPARSER::op_noop(void) const {
|
ZIPI ZPARSER::op_noop(void) const {
|
return 0x4e000000;
|
return 0x4e000000;
|
}
|
}
|
ZIPI ZPARSER::op_break(void) const {
|
ZIPI ZPARSER::op_break(void) const {
|
return 0x4e000001;
|
return 0x4e000001;
|
}
|
}
|
|
|
ZIPI ZPARSER::op_ldihi(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI ZPARSER::op_ldihi(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI in;
|
ZIPI in;
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((a&0x0f)<<16);
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(1<<20)|((a&0x0f)<<16);
|
in |= (imm & 0x0ffff);
|
in |= (imm & 0x0ffff);
|
return in;
|
return in;
|
}
|
}
|
ZIPI ZPARSER::op_ldilo(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI ZPARSER::op_ldilo(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI in;
|
ZIPI in;
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(0<<20)|((a&0x0f)<<16);
|
in = ((0x4f)<<24)|((cnd&0x07)<<21)|(0<<20)|((a&0x0f)<<16);
|
in |= (imm & 0x0ffff);
|
in |= (imm & 0x0ffff);
|
return in;
|
return in;
|
}
|
}
|
|
|
ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_mpy(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
return DBLREGOP(0x6, cnd, imm, b, a);
|
return DBLREGOP(0x4, cnd, imm, b, a);
|
|
} ZIPI ZPARSER::op_mpy(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
|
return IMMOP(0x4, cnd, imm, a);
|
|
}
|
|
|
|
ZIPI ZPARSER::op_rol(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
|
return DBLREGOP(0x5, cnd, imm, b, a);
|
|
} ZIPI ZPARSER::op_rol(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
|
return IMMOP(0x5, cnd, imm, a);
|
}
|
}
|
|
|
ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
|
return DBLREGOP(0x6, cnd, imm, b, a);
|
|
} ZIPI ZPARSER::op_lod(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
return IMMOP(0x6, cnd, imm, a);
|
return IMMOP(0x6, cnd, imm, a);
|
}
|
}
|
|
|
|
|
ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm, ZIPREG b) const {
|
ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm, ZIPREG b) const {
|
return DBLREGOP(0x7, cnd, imm, b, v);
|
return DBLREGOP(0x7, cnd, imm, b, v);
|
} ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm) const {
|
} ZIPI ZPARSER::op_sto(ZIPCOND cnd, ZIPREG v, ZIPIMM imm) const {
|
return IMMOP(0x7, cnd, imm, v);
|
return IMMOP(0x7, cnd, imm, v);
|
}
|
}
|
|
|
|
|
ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
return DBLREGOP(0x8, cnd, imm, b, a);
|
return DBLREGOP(0x8, cnd, imm, b, a);
|
} ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
} ZIPI ZPARSER::op_sub(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
|
return IMMOP(0x8, cnd, imm, a);
|
return IMMOP(0x8, cnd, imm, a);
|
}
|
}
|
|
|
|
|
ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
|
ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0x9, cnd, imm, b, a);
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return DBLREGOP(0x9, cnd, imm, b, a);
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} ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_and(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0x9, cnd, imm, a);
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return IMMOP(0x9, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xa, cnd, imm, b, a);
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return DBLREGOP(0xa, cnd, imm, b, a);
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} ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_add(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xa, cnd, imm, a);
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return IMMOP(0xa, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xb, cnd, imm, b, a);
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return DBLREGOP(0xb, cnd, imm, b, a);
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} ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_or(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xb, cnd, imm, a);
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return IMMOP(0xb, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xc, cnd, imm, b, a);
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return DBLREGOP(0xc, cnd, imm, b, a);
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} ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_xor(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xc, cnd, imm, a);
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return IMMOP(0xc, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xd, cnd, imm, b, a);
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return DBLREGOP(0xd, cnd, imm, b, a);
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} ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_lsl(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xd, cnd, imm, a);
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return IMMOP(0xd, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xe, cnd, imm, b, a);
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return DBLREGOP(0xe, cnd, imm, b, a);
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} ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_asr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xe, cnd, imm, a);
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return IMMOP(0xe, cnd, imm, a);
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}
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}
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ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG b, ZIPREG a) const {
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return DBLREGOP(0xf, cnd, imm, b, a);
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return DBLREGOP(0xf, cnd, imm, b, a);
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} ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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} ZIPI ZPARSER::op_lsr(ZIPCOND cnd, ZIPIMM imm, ZIPREG a) const {
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return IMMOP(0xf, cnd, imm, a);
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return IMMOP(0xf, cnd, imm, a);
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}
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}
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