/* parce.c -- Architecture independent load and parsing of assembly
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/* parce.c -- Architecture independent load and parsing of assembly
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <ctype.h>
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#include <string.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include "parse.h"
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#include "parse.h"
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#include "abstract.h"
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#include "abstract.h"
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#include "arch.h"
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#include "arch.h"
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#include "dmmu.h"
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#include "dmmu.h"
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#include "coff.h"
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#include "coff.h"
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#include "or32.h"
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#define MAXLINE_LEN 18000
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#define MAXLINE_LEN 18000
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extern char *disassembled;
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extern char *disassembled;
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/* Unused mem memory marker. It is used when allocating program and data memory
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/* Unused mem memory marker. It is used when allocating program and data memory
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during parsing */
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during parsing */
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unsigned int freemem;
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unsigned int freemem;
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/* Translation table provided by microkernel. Only used if simulating microkernel. */
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/* Translation table provided by microkernel. Only used if simulating microkernel. */
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static unsigned long transl_table;
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static unsigned long transl_table;
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/* Used to signal whether during loading of programs a translation fault occured. */
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/* Used to signal whether during loading of programs a translation fault occured. */
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static unsigned long transl_error;
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static unsigned long transl_error;
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int nonempty(char *line)
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int nonempty(char *line)
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{
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{
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int i;
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int i;
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for(i = 0; i < strlen(line); i++)
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for(i = 0; i < strlen(line); i++)
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if (!isspace(line[i]))
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if (!isspace(line[i]))
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return(1);
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return(1);
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return(0);
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return(0);
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}
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}
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int nondigit(char *line)
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int nondigit(char *line)
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{
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{
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int i;
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int i;
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for(i = 0; i < strlen(line); i++)
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for(i = 0; i < strlen(line); i++)
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if (!isdigit(line[i]))
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if (!isdigit(line[i]))
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return(1);
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return(1);
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return(0);
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return(0);
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}
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}
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char *strtoken(char *in, char *out, int which)
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char *strtoken(char *in, char *out, int which)
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{
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{
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char *super;
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char *super;
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char *sub;
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char *sub;
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char *newline;
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char *newline;
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super = strdup(in);
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super = strdup(in);
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sub = strtok(super, " \t");
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sub = strtok(super, " \t");
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while (sub && --which)
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while (sub && --which)
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sub = strtok(NULL, " \t");
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sub = strtok(NULL, " \t");
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if (sub && !which) {
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if (sub && !which) {
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if ((newline = strchr(sub, '\n')))
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if ((newline = strchr(sub, '\n')))
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newline[0] = '\0';
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newline[0] = '\0';
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strcpy(out, sub);
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strcpy(out, sub);
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} else
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} else
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out[0] = '\0';
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out[0] = '\0';
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free(super);
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free(super);
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if ((newline = strchr(out, '\r'))) /* get rid of CR */
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if ((newline = strchr(out, '\r'))) /* get rid of CR */
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newline[0] = '\0';
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newline[0] = '\0';
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return(out);
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return(out);
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}
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}
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/* Used only by the simulator loader to translate logical addresses int ophysical.
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/* Used only by the simulator loader to translate logical addresses int ophysical.
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If loadcode() is called with valid virtphy_transl pointer to a table of
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If loadcode() is called with valid virtphy_transl pointer to a table of
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translations then translate() performs translation otherwise phy address is
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translations then translate() performs translation otherwise phy address is
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equal to logical. */
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equal to logical. */
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static unsigned int translate(unsigned int laddr)
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static unsigned int translate(unsigned int laddr,int* breakpoint)
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{
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{
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int i;
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int i;
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/* No translation (i.e. when loading kernel into simulator)
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/* No translation (i.e. when loading kernel into simulator)
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/* printf("transl_table=%x laddr=%x\n", transl_table, laddr);
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/* printf("transl_table=%x laddr=%x\n", transl_table, laddr);
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printf("laddr=%x\n", laddr);*/
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printf("laddr=%x\n", laddr);*/
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if (transl_table == 0)
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if (transl_table == 0)
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return laddr;
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return laddr;
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/* Try to find our translation in the table. */
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/* Try to find our translation in the table. */
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for(i = 0; i < (MEMORY_LEN / PAGE_SIZE) * 16; i += 16)
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for(i = 0; i < (MEMORY_LEN / PAGE_SIZE) * 16; i += 16)
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if ((laddr & ~(PAGE_SIZE - 1)) == evalsim_mem32(transl_table + i)) {
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if ((laddr & ~(PAGE_SIZE - 1)) == evalsim_mem32(transl_table + i,breakpoint)) {
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setsim_mem32(transl_table + i + 8, -2); /* Page modified */
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setsim_mem32(transl_table + i + 8, -2); /* Page modified */
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printf("found paddr=%x\n", evalsim_mem32(transl_table + i + 4) | (laddr & (PAGE_SIZE - 1)));
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printf("found paddr=%x\n", evalsim_mem32(transl_table + i + 4,breakpoint) | (laddr & (PAGE_SIZE - 1)));
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return (unsigned long)evalsim_mem32(transl_table + i + 4) | (laddr & (unsigned long)(PAGE_SIZE - 1));
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return (unsigned long)evalsim_mem32(transl_table + i + 4,breakpoint) | (laddr & (unsigned long)(PAGE_SIZE - 1));
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}
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}
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/* Allocate new phy page for us. */
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/* Allocate new phy page for us. */
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for(i = 0; i < (MEMORY_LEN / PAGE_SIZE) * 16; i += 16)
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for(i = 0; i < (MEMORY_LEN / PAGE_SIZE) * 16; i += 16)
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if (evalsim_mem32(transl_table + i + 8) == 0) {
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if (evalsim_mem32(transl_table + i + 8,breakpoint) == 0) {
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setsim_mem32(transl_table + i, laddr & ~(PAGE_SIZE - 1)); /* VPN */
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setsim_mem32(transl_table + i, laddr & ~(PAGE_SIZE - 1)); /* VPN */
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setsim_mem32(transl_table + i + 4, (i/16) * PAGE_SIZE); /* PPN */
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setsim_mem32(transl_table + i + 4, (i/16) * PAGE_SIZE); /* PPN */
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setsim_mem32(transl_table + i + 8, -2); /* Page modified */
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setsim_mem32(transl_table + i + 8, -2); /* Page modified */
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printf("newly allocated ppn=%x\n", (unsigned long)evalsim_mem32(transl_table + i + 4));
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printf("newly allocated ppn=%x\n", (unsigned long)evalsim_mem32(transl_table + i + 4,breakpoint));
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printf("newly allocated .ppn=%x\n", (unsigned long)transl_table + i + 4);
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printf("newly allocated .ppn=%x\n", (unsigned long)transl_table + i + 4);
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printf("newly allocated ofs=%x\n", (unsigned long)(laddr & (PAGE_SIZE - 1)));
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printf("newly allocated ofs=%x\n", (unsigned long)(laddr & (PAGE_SIZE - 1)));
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printf("newly allocated paddr=%x\n", (unsigned long)evalsim_mem32(transl_table + i + 4) | (laddr & (PAGE_SIZE - 1)));
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printf("newly allocated paddr=%x\n", (unsigned long)evalsim_mem32(transl_table + i + 4,breakpoint) | (laddr & (PAGE_SIZE - 1)));
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return (unsigned long)evalsim_mem32(transl_table + i + 4) | (laddr & (unsigned long)(PAGE_SIZE - 1));
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return (unsigned long)evalsim_mem32(transl_table + i + 4,breakpoint) | (laddr & (unsigned long)(PAGE_SIZE - 1));
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}
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}
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/* If we come this far then all phy memory is used and we can't find our page
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/* If we come this far then all phy memory is used and we can't find our page
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nor allocate new page. */
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nor allocate new page. */
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transl_error = 1;
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transl_error = 1;
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printf("can't translate\n", laddr);
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printf("can't translate\n", laddr);
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exit(1);
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exit(1);
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return -1;
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return -1;
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}
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}
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void adddatastr(char *str)
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void adddatastr(char *str,int* breakpoint)
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{
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{
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if (str)
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if (str)
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str++;
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str++;
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else
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else
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return;
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return;
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for(; *str && *str != '\"'; str++, translate(freemem++))
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for(; *str && *str != '\"'; str++, translate(freemem++,breakpoint))
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if (*str == '\\')
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if (*str == '\\')
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switch (*++str) {
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switch (*++str) {
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case 'n': mem[translate(freemem)].data = '\n';
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case 'n': mem[translate(freemem,breakpoint)].data = '\n';
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break;
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break;
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case 't': mem[translate(freemem)].data = '\t';
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case 't': mem[translate(freemem,breakpoint)].data = '\t';
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break;
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break;
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case 'r': mem[translate(freemem)].data = '\r';
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case 'r': mem[translate(freemem,breakpoint)].data = '\r';
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break;
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break;
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case '0': mem[translate(freemem)].data = '\0';
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case '0': mem[translate(freemem,breakpoint)].data = '\0';
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break;
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break;
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default: break;
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default: break;
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}
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}
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else
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else
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mem[translate(freemem)].data = *str;
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mem[translate(freemem,breakpoint)].data = *str;
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}
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}
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void adddataword(char *item)
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/* Modified by CZ 26/05/01 */
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/* Added code for new mode operation */
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void adddataword(char *item,int* breakpoint)
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{
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{
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unsigned long num;
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unsigned long num;
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if (isdigit(*item))
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if (isdigit(*item))
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num = strtoul(item, NULL, 0);
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num = strtoul(item, NULL, 0);
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else
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else
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num = eval_label(item);
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num = eval_label(item);
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debug("adddataword: [0x%x] <= %x\n", translate(freemem), num);
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debug("adddataword: [0x%x] <= %x\n", translate(freemem,breakpoint), num);
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mem[translate(freemem)].data = (char) (num >> 24);
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mem[translate(freemem,breakpoint)].data = (char) (num >> 24);
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mem[translate(freemem + 1)].data = (char) (num >> 16);
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mem[translate(freemem + 1,breakpoint)].data = (char) (num >> 16);
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mem[translate(freemem + 2)].data = (char) (num >> 8);
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mem[translate(freemem + 2,breakpoint)].data = (char) (num >> 8);
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mem[translate(freemem + 3)].data = (char) (num);
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mem[translate(freemem + 3,breakpoint)].data = (char) (num);
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if(!GlobalMode)
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freemem += 4;
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freemem += 4;
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}
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}
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void adddatahalf(char *item)
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void adddatahalf(char *item,int* breakpoint)
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{
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{
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unsigned long num;
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unsigned long num;
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if (isdigit(*item))
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if (isdigit(*item))
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num = strtoul(item, NULL, 0);
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num = strtoul(item, NULL, 0);
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else
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else
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num = eval_label(item);
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num = eval_label(item);
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mem[translate(freemem)].data = (char) (num >> 8);
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mem[translate(freemem,breakpoint)].data = (char) (num >> 8);
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mem[translate(freemem + 1)].data = (char) (num);
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mem[translate(freemem + 1,breakpoint)].data = (char) (num);
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freemem += 2;
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freemem += 2;
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}
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}
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void adddatabyte(char *item)
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void adddatabyte(char *item,int* breakpoint)
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{
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{
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unsigned long num;
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unsigned long num;
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if (isdigit(*item))
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if (isdigit(*item))
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num = strtoul(item, NULL, 0);
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num = strtoul(item, NULL, 0);
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else
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else
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num = eval_label(item);
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num = eval_label(item);
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mem[translate(freemem)].data = (char) (num);
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mem[translate(freemem,breakpoint)].data = (char) (num);
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freemem++;
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freemem++;
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}
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}
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void adddataspace(char *num)
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void adddataspace(char *num)
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{
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{
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freemem += atol(num);
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freemem += atol(num);
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}
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}
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void addlabel(char *label, unsigned long freemem)
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void addlabel(char *label, unsigned long freemem,int* breakpoint)
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{
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{
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struct label_entry **tmp;
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struct label_entry **tmp;
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debug("Adding label %s at 0x%x\n", label, translate(freemem));
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debug("Adding label %s at 0x%x\n", label, translate(freemem,breakpoint));
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tmp = &mem[translate(freemem)].label;
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tmp = &mem[translate(freemem,breakpoint)].label;
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for (; *tmp; tmp = &((*tmp)->next));
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for (; *tmp; tmp = &((*tmp)->next));
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*tmp = malloc(sizeof(**tmp));
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*tmp = malloc(sizeof(**tmp));
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(*tmp)->name = malloc(strlen(label)+1);
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(*tmp)->name = malloc(strlen(label)+1);
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strcpy((*tmp)->name, label);
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strcpy((*tmp)->name, label);
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(*tmp)->next = NULL;
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(*tmp)->next = NULL;
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return;
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return;
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}
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}
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char null_str[1] = "\0";
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char null_str[1] = "\0";
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void addprogram(char *insn, char *operands)
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/* Modified by CZ 26/05/01 */
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/* Replaced several calls to translate(freemem) with vaddr */
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/* Added new mode execution code */
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/* Changed parameters so address can be passed as argument */
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void addprogram(char *insn, char *operands,unsigned int address,int* breakpoint)
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{
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{
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int h_insn_is_word_flag=0;
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int h_insn_is_word_flag=0;
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char insn_first2_char[3];
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char insn_first2_char[3];
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int vaddr = GlobalMode ? translate(address,breakpoint) : translate(freemem,breakpoint);
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debug("addprogram 1\n");
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debug("addprogram 1\n");
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if (!mem[translate(freemem)].insn) {
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if (!mem[vaddr].insn) {
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mem[translate(freemem)].insn = malloc(sizeof(*mem[translate(freemem)].insn));
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mem[vaddr].insn = (struct insn_entry *)malloc (sizeof (struct insn_entry));
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mem[translate(freemem)].insn->insn = null_str;
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mem[vaddr].insn->insn_index = -1;
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mem[translate(freemem)].insn->op1 = null_str;
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mem[vaddr].insn->op1 = null_str;
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mem[translate(freemem)].insn->op2 = null_str;
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mem[vaddr].insn->op2 = null_str;
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mem[translate(freemem)].insn->op3 = null_str;
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mem[vaddr].insn->op3 = null_str;
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mem[translate(freemem)].insn->op4 = null_str;
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mem[vaddr].insn->op4 = null_str;
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} else {
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} else if(!GlobalMode) { /* Old mode */
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printf("internal error: reloading the same location\n");
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printf("internal error: reloading the same location\n");
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exit(1);
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exit(1);
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} else /* New mode */
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{
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if(mem[vaddr].insn->op1 != null_str) free(mem[vaddr].insn->op1);
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if(mem[vaddr].insn->op2 != null_str) free(mem[vaddr].insn->op2);
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if(mem[vaddr].insn->op3 != null_str) free(mem[vaddr].insn->op3);
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if(mem[vaddr].insn->op4 != null_str) free(mem[vaddr].insn->op4);
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mem[vaddr].insn->insn_index = -1;
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mem[vaddr].insn->op1 = null_str;
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mem[vaddr].insn->op2 = null_str;
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mem[vaddr].insn->op3 = null_str;
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mem[vaddr].insn->op4 = null_str;
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}
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}
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debug("addprogram 2\n");
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mem[translate(freemem)].insn->insn = malloc(strlen(insn)+1);
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debug("addprogram 2\n");
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#ifdef OR16
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#ifdef OR16
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strcpy(mem[translate(freemem)].insn->insn, insn);
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printf("half:%s:\n", insn);
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printf("half:%s:\n", insn);
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insn_first2_char[0]=insn[0];
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insn_first2_char[0]=insn[0];
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insn_first2_char[1]=insn[1];
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insn_first2_char[1]=insn[1];
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insn_first2_char[2]='\0';
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insn_first2_char[2]='\0';
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debug("addprogram 3\n");
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debug("addprogram 3\n");
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|
|
if(strcmp("h.", insn_first2_char) == 0) {
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if(strcmp("h.", insn_first2_char) == 0) {
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if(strcmp("h.load32u", insn) == 0 ||
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if(strcmp("h.load32u", insn) == 0 ||
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strcmp("h.load16u", insn) == 0 ||
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strcmp("h.load16u", insn) == 0 ||
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strcmp("h.load8u", insn) == 0 ||
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strcmp("h.load8u", insn) == 0 ||
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strcmp("h.stor32", insn) == 0 ||
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strcmp("h.stor32", insn) == 0 ||
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strcmp("h.stor16", insn) == 0 ||
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strcmp("h.stor16", insn) == 0 ||
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strcmp("h.stor8", insn) == 0 ||
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strcmp("h.stor8", insn) == 0 ||
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strcmp("h.jal", insn) == 0 ||
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strcmp("h.jal", insn) == 0 ||
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/* strcmp("h.mtsr", insn) == 0 ||
|
/* strcmp("h.mtsr", insn) == 0 ||
|
strcmp("h.mfsr", insn) == 0 || */
|
strcmp("h.mfsr", insn) == 0 || */
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strcmp("h.movi16ze", insn) == 0 ||
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strcmp("h.movi16ze", insn) == 0 ||
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strcmp("h.immhi16u", insn) == 0 ||
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strcmp("h.immhi16u", insn) == 0 ||
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strcmp("h.addi16s", insn) == 0 ||
|
strcmp("h.addi16s", insn) == 0 ||
|
strcmp("h.subi16s", insn) == 0 ||
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strcmp("h.subi16s", insn) == 0 ||
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strcmp("h.xori16", insn) == 0 ||
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strcmp("h.xori16", insn) == 0 ||
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strcmp("h.ori16", insn) == 0 ||
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strcmp("h.ori16", insn) == 0 ||
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strcmp("h.andi16", insn) == 0
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strcmp("h.andi16", insn) == 0
|
)
|
)
|
h_insn_is_word_flag = 2; /* h.xxx insn AND occupy 4 bytes */
|
h_insn_is_word_flag = 2; /* h.xxx insn AND occupy 4 bytes */
|
else
|
else
|
h_insn_is_word_flag = 1; /* h.xxx insn AND occupy 2 bytes */
|
h_insn_is_word_flag = 1; /* h.xxx insn AND occupy 2 bytes */
|
}
|
}
|
else {
|
else {
|
h_insn_is_word_flag = 0; /* not h.xxx insn */
|
h_insn_is_word_flag = 0; /* not h.xxx insn */
|
}
|
}
|
#else
|
#else
|
debug("addprogram 4\n");
|
debug("addprogram 4\n");
|
strcpy(mem[translate(freemem)].insn->insn, insn);
|
|
debug("addprogram 5\n");
|
debug("addprogram 5\n");
|
#endif
|
#endif
|
|
|
|
/* MM: added instruction index */
|
|
mem[vaddr].insn->insn_index = insn_index (insn);
|
/* op1 */
|
/* op1 */
|
if (*operands) {
|
if (*operands) {
|
mem[translate(freemem)].insn->op1 = malloc(strlen(operands)+1);
|
mem[vaddr].insn->op1 = malloc(strlen(operands)+1);
|
strcpy(mem[translate(freemem)].insn->op1, operands);
|
strcpy(mem[vaddr].insn->op1, operands);
|
}
|
}
|
|
|
debug("addprogram 6\n");
|
debug("addprogram 6\n");
|
debug("operands:%s\n", operands);
|
debug("operands:%s\n", operands);
|
if (strstr(operands, OPERAND_DELIM)) {
|
if (strstr(operands, OPERAND_DELIM)) {
|
debug("addprogram 6a\n");
|
debug("addprogram 6a\n");
|
operands = strstr(mem[translate(freemem)].insn->op1, OPERAND_DELIM);
|
operands = strstr(mem[vaddr].insn->op1, OPERAND_DELIM);
|
*operands = '\0';
|
*operands = '\0';
|
operands++;
|
operands++;
|
} else {
|
} else {
|
debug("addprogram 6b\n");
|
debug("addprogram 6b\n");
|
|
if(!GlobalMode)
|
|
{
|
#ifdef OR16
|
#ifdef OR16
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
#else
|
#else
|
freemem += 4;
|
freemem += 4;
|
#endif
|
#endif
|
|
}
|
return;
|
return;
|
}
|
}
|
|
|
debug("addprogram 7\n");
|
debug("addprogram 7\n");
|
/* op2 */
|
/* op2 */
|
if (*operands) {
|
if (*operands) {
|
mem[translate(freemem)].insn->op2 = malloc(strlen(operands)+1);
|
mem[vaddr].insn->op2 = malloc(strlen(operands)+1);
|
strcpy(mem[translate(freemem)].insn->op2, operands);
|
strcpy(mem[vaddr].insn->op2, operands);
|
}
|
}
|
if (strstr(operands, OPERAND_DELIM)) {
|
if (strstr(operands, OPERAND_DELIM)) {
|
operands = strstr(mem[translate(freemem)].insn->op2, OPERAND_DELIM);
|
operands = strstr(mem[vaddr].insn->op2, OPERAND_DELIM);
|
*operands = '\0';
|
*operands = '\0';
|
operands++;
|
operands++;
|
} else {
|
} else {
|
|
if(!GlobalMode)
|
|
{
|
#ifdef OR16
|
#ifdef OR16
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
#else
|
#else
|
freemem += 4;
|
freemem += 4;
|
#endif
|
#endif
|
|
}
|
|
|
return;
|
return;
|
}
|
}
|
|
|
debug("addprogram 8\n");
|
debug("addprogram 8\n");
|
/* op3 */
|
/* op3 */
|
if (*operands) {
|
if (*operands) {
|
mem[translate(freemem)].insn->op3 = malloc(strlen(operands)+1);
|
mem[vaddr].insn->op3 = malloc(strlen(operands)+1);
|
strcpy(mem[translate(freemem)].insn->op3, operands);
|
strcpy(mem[vaddr].insn->op3, operands);
|
}
|
}
|
if (strstr(operands, OPERAND_DELIM)) {
|
if (strstr(operands, OPERAND_DELIM)) {
|
operands = strstr(mem[translate(freemem)].insn->op3, OPERAND_DELIM);
|
operands = strstr(mem[vaddr].insn->op3, OPERAND_DELIM);
|
*operands = '\0';
|
*operands = '\0';
|
operands++;
|
operands++;
|
} else {
|
} else {
|
|
if(!GlobalMode)
|
|
{
|
#ifdef OR16
|
#ifdef OR16
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
#else
|
#else
|
freemem += 4;
|
freemem += 4;
|
#endif
|
#endif
|
|
}
|
return;
|
return;
|
}
|
}
|
|
|
/* op4 */
|
/* op4 */
|
if (*operands) {
|
if (*operands) {
|
mem[translate(freemem)].insn->op4 = malloc(strlen(operands)+1);
|
mem[vaddr].insn->op4 = malloc(strlen(operands)+1);
|
strcpy(mem[translate(freemem)].insn->op4, operands);
|
strcpy(mem[vaddr].insn->op4, operands);
|
}
|
}
|
if (strstr(operands, OPERAND_DELIM)) {
|
if (strstr(operands, OPERAND_DELIM)) {
|
operands = strstr(mem[translate(freemem)].insn->op4, OPERAND_DELIM);
|
operands = strstr(mem[vaddr].insn->op4, OPERAND_DELIM);
|
*operands = '\0';
|
*operands = '\0';
|
operands++;
|
operands++;
|
}
|
}
|
|
|
|
if(!GlobalMode)
|
|
{
|
#ifdef OR16
|
#ifdef OR16
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
freemem += (h_insn_is_word_flag == 1) ? 2 : 4;
|
#else
|
#else
|
freemem += 4;
|
freemem += 4;
|
#endif
|
#endif
|
|
}
|
|
|
return;
|
return;
|
}
|
}
|
|
|
/* Non-architecture dependent parsing: stripping comments, filling
|
/* Non-architecture dependent parsing: stripping comments, filling
|
abstract memory */
|
abstract memory */
|
|
|
void parseline(char *inputline)
|
void parseline(char *inputline,int* breakpoint)
|
{
|
{
|
char item[MAXLINE_LEN];
|
char item[MAXLINE_LEN];
|
char item2[MAXLINE_LEN];
|
char item2[MAXLINE_LEN];
|
int i = 0;
|
int i = 0;
|
|
|
/* Strip comments: simply terminate line where
|
/* Strip comments: simply terminate line where
|
the first comment character appears. */
|
the first comment character appears. */
|
|
|
debug("PARSING: %s", inputline);
|
debug("PARSING: %s", inputline);
|
while (inputline[i] != '\0')
|
while (inputline[i] != '\0')
|
if (inputline[i] == COMMENT_CHAR) {
|
if (inputline[i] == COMMENT_CHAR) {
|
inputline[i] = '\0';
|
inputline[i] = '\0';
|
break;
|
break;
|
} else
|
} else
|
i++;
|
i++;
|
|
|
/* Get the first item from this line */
|
/* Get the first item from this line */
|
strtoken(inputline, item, 1); /* opcode */
|
strtoken(inputline, item, 1); /* opcode */
|
strtoken(inputline, item2, 2); /* all the remaining one/two/three operands */
|
strtoken(inputline, item2, 2); /* all the remaining one/two/three operands */
|
|
|
/* Is this item empty? Nothing to process, so return. */
|
/* Is this item empty? Nothing to process, so return. */
|
if (strlen(item) == 0)
|
if (strlen(item) == 0)
|
return;
|
return;
|
|
|
/* Is this item a label? If yes, add it to the label table and return immediately. */
|
/* Is this item a label? If yes, add it to the label table and return immediately. */
|
if (strstr(item, LABELEND_CHAR)) {
|
if (strstr(item, LABELEND_CHAR)) {
|
*strstr(item, LABELEND_CHAR) = '\0';
|
*strstr(item, LABELEND_CHAR) = '\0';
|
addlabel(item, translate(freemem));
|
addlabel(item, translate(freemem,breakpoint),breakpoint);
|
return;
|
return;
|
}
|
}
|
|
|
/* Is this item a .directive? If yes, check for some supported
|
/* Is this item a .directive? If yes, check for some supported
|
and then return (even if unsupported found). */
|
and then return (even if unsupported found). */
|
if (item[0] == DIRECTIVE_CHAR) {
|
if (item[0] == DIRECTIVE_CHAR) {
|
if (strcmp(item, ".align") == 0) {
|
if (strcmp(item, ".align") == 0) {
|
int align = strtoul(item2, NULL, 0);
|
int align = strtoul(item2, NULL, 0);
|
if (!(translate(freemem) % align))
|
if (!(translate(freemem,breakpoint) % align))
|
return;
|
return;
|
freemem &= -align;
|
freemem &= -align;
|
freemem += align;
|
freemem += align;
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".org") == 0) {
|
if (strcmp(item, ".org") == 0) {
|
int addr = strtoul(item2, NULL, 0);
|
int addr = strtoul(item2, NULL, 0);
|
freemem = addr;
|
freemem = addr;
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".ascii") == 0) {
|
if (strcmp(item, ".ascii") == 0) {
|
adddatastr(strstr(inputline, "\""));
|
adddatastr(strstr(inputline, "\""),breakpoint);
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".word") == 0) {
|
if (strcmp(item, ".word") == 0) {
|
adddataword(item2);
|
adddataword(item2,breakpoint);
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".half") == 0) {
|
if (strcmp(item, ".half") == 0) {
|
adddatahalf(item2);
|
adddatahalf(item2,breakpoint);
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".byte") == 0) {
|
if (strcmp(item, ".byte") == 0) {
|
adddatabyte(item2);
|
adddatabyte(item2,breakpoint);
|
return;
|
return;
|
} else
|
} else
|
if (strcmp(item, ".space") == 0) {
|
if (strcmp(item, ".space") == 0) {
|
adddataspace(item2);
|
adddataspace(item2);
|
return;
|
return;
|
} else /* .directive but not one of the supported */
|
} else /* .directive but not one of the supported */
|
return;
|
return;
|
}
|
}
|
|
|
/* This item can only be an instruction. Get all operands
|
/* This item can only be an instruction. Get all operands
|
and add everything to mem array but as a program. */
|
and add everything to mem array but as a program. */
|
debug("%x: ", translate(freemem));
|
debug("%x: ", translate(freemem,breakpoint));
|
addprogram(item, item2);
|
addprogram(item, item2,freemem,breakpoint);
|
|
|
/* Also do static, single stats. */
|
/* Also do static, single stats. */
|
addsstats(item, 0, 1);
|
addsstats(item, 0, 1);
|
|
|
return;
|
return;
|
|
|
}
|
}
|
|
|
/* Load big-endian COFF file. At the moment it doesn't load symbols yet. */
|
/* Load big-endian COFF file. At the moment it doesn't load symbols yet. */
|
|
|
void readfile_coff(char *filename, short sections)
|
void readfile_coff(char *filename, short sections)
|
{
|
{
|
FILE *inputfs;
|
FILE *inputfs;
|
char inputbuf[4];
|
char inputbuf[4];
|
unsigned long insn;
|
unsigned long insn;
|
signed long sectsize;
|
signed long sectsize;
|
COFF_AOUTHDR coffaouthdr;
|
COFF_AOUTHDR coffaouthdr;
|
struct COFF_scnhdr coffscnhdr;
|
struct COFF_scnhdr coffscnhdr;
|
int len;
|
int len;
|
char item[MAXLINE_LEN];
|
char item[MAXLINE_LEN];
|
char item2[MAXLINE_LEN];
|
char item2[MAXLINE_LEN];
|
int firstthree = 0;
|
int firstthree = 0;
|
|
int breakpoint = 0;
|
|
|
if (!(inputfs = fopen(filename, "r"))) {
|
if (!(inputfs = fopen(filename, "r"))) {
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (fseek(inputfs, sizeof(struct COFF_filehdr), SEEK_SET) == -1) {
|
if (fseek(inputfs, sizeof(struct COFF_filehdr), SEEK_SET) == -1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (fread(&coffaouthdr, sizeof(coffaouthdr), 1, inputfs) != 1) {
|
if (fread(&coffaouthdr, sizeof(coffaouthdr), 1, inputfs) != 1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
while(sections--) {
|
while(sections--) {
|
long scnhdr_pos = sizeof(struct COFF_filehdr) + sizeof(coffaouthdr)
|
long scnhdr_pos = sizeof(struct COFF_filehdr) + sizeof(coffaouthdr)
|
+ sizeof(struct COFF_scnhdr) * firstthree;
|
+ sizeof(struct COFF_scnhdr) * firstthree;
|
if (fseek(inputfs, scnhdr_pos, SEEK_SET) == -1) {
|
if (fseek(inputfs, scnhdr_pos, SEEK_SET) == -1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
if (fread(&coffscnhdr, sizeof(struct COFF_scnhdr), 1, inputfs) != 1) {
|
if (fread(&coffscnhdr, sizeof(struct COFF_scnhdr), 1, inputfs) != 1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
printf("Section: %s,", coffscnhdr.s_name);
|
printf("Section: %s,", coffscnhdr.s_name);
|
printf(" vaddr: 0x%.8x,", COFF_LONG_H(coffscnhdr.s_vaddr));
|
printf(" vaddr: 0x%.8x,", COFF_LONG_H(coffscnhdr.s_vaddr));
|
printf(" size: 0x%.8x,", COFF_LONG_H(coffscnhdr.s_size));
|
printf(" size: 0x%.8x,", COFF_LONG_H(coffscnhdr.s_size));
|
printf(" scnptr: 0x%.8x\n", COFF_LONG_H(coffscnhdr.s_scnptr));
|
printf(" scnptr: 0x%.8x\n", COFF_LONG_H(coffscnhdr.s_scnptr));
|
|
|
sectsize = COFF_LONG_H(coffscnhdr.s_size);
|
sectsize = COFF_LONG_H(coffscnhdr.s_size);
|
/* A couple of sanity checks. */
|
/* A couple of sanity checks. */
|
if (translate(COFF_LONG_H(coffscnhdr.s_vaddr)) < MEMORY_START) {
|
if (translate(COFF_LONG_H(coffscnhdr.s_vaddr),&breakpoint) < MEMORY_START) {
|
printf("Section %s starts out of ", coffscnhdr.s_name);
|
printf("Section %s starts out of ", coffscnhdr.s_name);
|
printf("memory (at %x)\n", COFF_LONG_H(coffscnhdr.s_vaddr));
|
printf("memory (at %x)\n", COFF_LONG_H(coffscnhdr.s_vaddr));
|
exit(1);
|
exit(1);
|
}
|
}
|
if (translate(COFF_LONG_H(coffscnhdr.s_vaddr) + sectsize) >
|
if (translate(COFF_LONG_H(coffscnhdr.s_vaddr) + sectsize,&breakpoint) >
|
MEMORY_START + MEMORY_LEN) {
|
MEMORY_START + MEMORY_LEN) {
|
printf("Section %s ends out of ", coffscnhdr.s_name);
|
printf("Section %s ends out of ", coffscnhdr.s_name);
|
printf("memory.\n");
|
printf("memory.\n");
|
exit(1);
|
exit(1);
|
}
|
}
|
if (++firstthree == 1 && strcmp(coffscnhdr.s_name, ".text") != 0) {
|
if (++firstthree == 1 && strcmp(coffscnhdr.s_name, ".text") != 0) {
|
printf("First section should be .text (%s instead)\n", coffscnhdr.s_name);
|
printf("First section should be .text (%s instead)\n", coffscnhdr.s_name);
|
exit(1);
|
exit(1);
|
}
|
}
|
if (firstthree == 2 && strcmp(coffscnhdr.s_name, ".data") != 0) {
|
if (firstthree == 2 && strcmp(coffscnhdr.s_name, ".data") != 0) {
|
printf("Second section should be .data (%s instead)\n", coffscnhdr.s_name);
|
printf("Second section should be .data (%s instead)\n", coffscnhdr.s_name);
|
exit(1);
|
exit(1);
|
}
|
}
|
if (firstthree == 3 && strcmp(coffscnhdr.s_name, ".bss") != 0) {
|
if (firstthree == 3 && strcmp(coffscnhdr.s_name, ".bss") != 0) {
|
printf("Third section should be .bss (%s instead)\n", coffscnhdr.s_name);
|
printf("Third section should be .bss (%s instead)\n", coffscnhdr.s_name);
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
/* loading section */
|
/* loading section */
|
freemem = COFF_LONG_H(coffscnhdr.s_vaddr);
|
freemem = COFF_LONG_H(coffscnhdr.s_vaddr);
|
debug("Starting to load at 0x%x", freemem);
|
debug("Starting to load at 0x%x", freemem);
|
if (fseek(inputfs, COFF_LONG_H(coffscnhdr.s_scnptr), SEEK_SET) == -1) {
|
if (fseek(inputfs, COFF_LONG_H(coffscnhdr.s_scnptr), SEEK_SET) == -1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readfile_coff");
|
perror("readfile_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
while (sectsize > 0 && (len = fread(&inputbuf, sizeof(inputbuf), 1, inputfs))) {
|
while (sectsize > 0 && (len = fread(&inputbuf, sizeof(inputbuf), 1, inputfs))) {
|
insn = COFF_LONG_H(inputbuf);
|
insn = COFF_LONG_H(inputbuf);
|
len = disassemble_insn(insn);
|
len = disassemble_insn(insn);
|
sprintf(item, "%u", insn);
|
sprintf(item, "%u", insn);
|
adddataword(item);
|
adddataword(item,&breakpoint);
|
freemem -= len;
|
freemem -= len;
|
if (len == 2) {
|
if (len == 2) {
|
fseek(inputfs, -2, SEEK_CUR);
|
fseek(inputfs, -2, SEEK_CUR);
|
debug("readfile_coff: %x 0x%x ", sectsize, insn >> 16);
|
debug("readfile_coff: %x 0x%x ", sectsize, insn >> 16);
|
}
|
}
|
else
|
else
|
debug("readfile_coff: %x 0x%x ", sectsize, insn);
|
debug("readfile_coff: %x 0x%x ", sectsize, insn);
|
debug("%s\n", disassembled);
|
debug("%s\n", disassembled);
|
strtoken(disassembled, item, 1); /* opcode */
|
strtoken(disassembled, item, 1); /* opcode */
|
strtoken(disassembled, item2, 2); /* all the remaining one/two/three operands */
|
strtoken(disassembled, item2, 2); /* all the remaining one/two/three operands */
|
addprogram(item, item2);
|
addprogram(item, item2,freemem,&breakpoint);
|
sectsize -= len;
|
sectsize -= len;
|
}
|
}
|
}
|
}
|
if (firstthree < 3) {
|
if (firstthree < 3) {
|
printf("One or more missing sections. At least");
|
printf("One or more missing sections. At least");
|
printf(" three sections expected (.text, .data, .bss).\n");
|
printf(" three sections expected (.text, .data, .bss).\n");
|
exit(1);
|
exit(1);
|
}
|
}
|
if (firstthree > 3) {
|
if (firstthree > 3) {
|
printf("Warning: one or more extra sections. These");
|
printf("Warning: one or more extra sections. These");
|
printf(" sections were handled as .data sections.\n");
|
printf(" sections were handled as .data sections.\n");
|
}
|
}
|
|
|
fclose(inputfs);
|
fclose(inputfs);
|
printf("Finished loading COFF.\n");
|
printf("Finished loading COFF.\n");
|
return;
|
return;
|
}
|
}
|
|
|
/* Load symbols from big-endian COFF file. */
|
/* Load symbols from big-endian COFF file. */
|
|
|
void readsyms_coff(char *filename, unsigned long symptr, long syms)
|
void readsyms_coff(char *filename, unsigned long symptr, long syms)
|
{
|
{
|
FILE *inputfs;
|
FILE *inputfs;
|
struct COFF_syment coffsymhdr;
|
struct COFF_syment coffsymhdr;
|
|
int breakpoint = 0;
|
|
|
if (!(inputfs = fopen(filename, "r"))) {
|
if (!(inputfs = fopen(filename, "r"))) {
|
perror("readsyms_coff");
|
perror("readsyms_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (fseek(inputfs, symptr, SEEK_SET) == -1) {
|
if (fseek(inputfs, symptr, SEEK_SET) == -1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readsyms_coff");
|
perror("readsyms_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
while(syms--) {
|
while(syms--) {
|
if (fread(&coffsymhdr, COFF_SYMESZ, 1, inputfs) != 1) {
|
if (fread(&coffsymhdr, COFF_SYMESZ, 1, inputfs) != 1) {
|
fclose(inputfs);
|
fclose(inputfs);
|
perror("readsyms_coff");
|
perror("readsyms_coff");
|
exit(1);
|
exit(1);
|
}
|
}
|
debug("Symbol: %s,", coffsymhdr.e.e_name);
|
debug("Symbol: %s,", coffsymhdr.e.e_name);
|
debug(" val: 0x%.8x,", COFF_LONG_H(coffsymhdr.e_value));
|
debug(" val: 0x%.8x,", COFF_LONG_H(coffsymhdr.e_value));
|
debug(" auxs: %c\n", coffsymhdr.e_numaux);
|
debug(" auxs: %c\n", coffsymhdr.e_numaux);
|
if (strlen(coffsymhdr.e.e_name) && strlen(coffsymhdr.e.e_name) < 9)
|
if (strlen(coffsymhdr.e.e_name) && strlen(coffsymhdr.e.e_name) < 9)
|
addlabel(coffsymhdr.e.e_name, COFF_LONG_H(coffsymhdr.e_value));
|
addlabel(coffsymhdr.e.e_name, COFF_LONG_H(coffsymhdr.e_value),&breakpoint);
|
}
|
}
|
|
|
fclose(inputfs);
|
fclose(inputfs);
|
printf("Finished loading symbols.\n");
|
printf("Finished loading symbols.\n");
|
return;
|
return;
|
}
|
}
|
|
|
/* Load file and hand over every line to parse routine. */
|
/* Load file and hand over every line to parse routine. */
|
|
|
void readfile_assembly(char *filename)
|
void readfile_assembly(char *filename)
|
{
|
{
|
FILE *inputfs;
|
FILE *inputfs;
|
char inputbuf[MAXLINE_LEN];
|
char inputbuf[MAXLINE_LEN];
|
char *status;
|
char *status;
|
|
int breakpoint = 0;
|
|
|
if (!(inputfs = fopen(filename, "r"))) {
|
if (!(inputfs = fopen(filename, "r"))) {
|
perror("readfile_assembly");
|
perror("readfile_assembly");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
while ((status = fgets(inputbuf, sizeof(inputbuf), inputfs))) {
|
while ((status = fgets(inputbuf, sizeof(inputbuf), inputfs))) {
|
if (nonempty(inputbuf))
|
if (nonempty(inputbuf))
|
parseline(inputbuf);
|
parseline(inputbuf,&breakpoint);
|
}
|
}
|
fclose(inputfs);
|
fclose(inputfs);
|
|
|
return;
|
return;
|
}
|
}
|
|
|
/* Identify file type and call appropriate readfile_X routine. It only
|
/* Identify file type and call appropriate readfile_X routine. It only
|
handles orX-coff-big executables at the moment. */
|
handles orX-coff-big executables at the moment. */
|
|
|
void identifyfile(char *filename)
|
void identifyfile(char *filename)
|
{
|
{
|
FILE *inputfs;
|
FILE *inputfs;
|
struct COFF_filehdr coffhdr;
|
struct COFF_filehdr coffhdr;
|
size_t len;
|
size_t len;
|
|
|
if (!(inputfs = fopen(filename, "r"))) {
|
if (!(inputfs = fopen(filename, "r"))) {
|
fprintf(stderr, "xx %s", filename);
|
fprintf(stderr, "xx %s", filename);
|
perror("identifyfile1");
|
perror("identifyfile1");
|
fflush(stdout);
|
fflush(stdout);
|
fflush(stderr);
|
fflush(stderr);
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (fread(&coffhdr, sizeof(coffhdr), 1, inputfs) == 1) {
|
if (fread(&coffhdr, sizeof(coffhdr), 1, inputfs) == 1) {
|
if (COFF_SHORT_H(coffhdr.f_magic) == 0x17a) {
|
if (COFF_SHORT_H(coffhdr.f_magic) == 0x17a) {
|
unsigned long opthdr_size;
|
unsigned long opthdr_size;
|
printf("COFF magic: 0x%.4x\n", COFF_SHORT_H(coffhdr.f_magic));
|
printf("COFF magic: 0x%.4x\n", COFF_SHORT_H(coffhdr.f_magic));
|
printf("COFF flags: 0x%.4x\n", COFF_SHORT_H(coffhdr.f_flags));
|
printf("COFF flags: 0x%.4x\n", COFF_SHORT_H(coffhdr.f_flags));
|
printf("COFF symptr: 0x%.8x\n", COFF_LONG_H(coffhdr.f_symptr));
|
printf("COFF symptr: 0x%.8x\n", COFF_LONG_H(coffhdr.f_symptr));
|
if ((COFF_SHORT_H(coffhdr.f_flags) & COFF_F_EXEC) != COFF_F_EXEC) {
|
if ((COFF_SHORT_H(coffhdr.f_flags) & COFF_F_EXEC) != COFF_F_EXEC) {
|
printf("This COFF is not an executable.\n");
|
printf("This COFF is not an executable.\n");
|
exit(1);
|
exit(1);
|
}
|
}
|
opthdr_size = COFF_SHORT_H(coffhdr.f_opthdr);
|
opthdr_size = COFF_SHORT_H(coffhdr.f_opthdr);
|
if (opthdr_size != sizeof(COFF_AOUTHDR)) {
|
if (opthdr_size != sizeof(COFF_AOUTHDR)) {
|
printf("COFF optional header is missing or not recognized.\n");
|
printf("COFF optional header is missing or not recognized.\n");
|
printf("COFF f_opthdr: 0x%.2x\n", opthdr_size);
|
printf("COFF f_opthdr: 0x%.2x\n", opthdr_size);
|
exit(1);
|
exit(1);
|
}
|
}
|
fclose(inputfs);
|
fclose(inputfs);
|
readfile_coff(filename, COFF_SHORT_H(coffhdr.f_nscns));
|
readfile_coff(filename, COFF_SHORT_H(coffhdr.f_nscns));
|
readsyms_coff(filename, COFF_LONG_H(coffhdr.f_symptr), COFF_LONG_H(coffhdr.f_nsyms));
|
readsyms_coff(filename, COFF_LONG_H(coffhdr.f_symptr), COFF_LONG_H(coffhdr.f_nsyms));
|
return;
|
return;
|
}
|
}
|
else {
|
else {
|
printf("Not COFF, trying to load as assembly.\n");
|
printf("Not COFF, trying to load as assembly.\n");
|
fclose(inputfs);
|
fclose(inputfs);
|
readfile_assembly(filename);
|
readfile_assembly(filename);
|
return;
|
return;
|
}
|
}
|
}
|
}
|
else {
|
else {
|
printf("yy %s", filename);
|
printf("yy %s", filename);
|
perror("identifyfile2");
|
perror("identifyfile2");
|
}
|
}
|
|
|
fclose(inputfs);
|
fclose(inputfs);
|
|
|
return;
|
return;
|
}
|
}
|
|
|
|
|
/* Loads file to memory starting at address startaddr and returns freemem. */
|
/* Loads file to memory starting at address startaddr and returns freemem. */
|
unsigned long loadcode(char *filename, unsigned long startaddr, unsigned long virtphy_transl)
|
unsigned long loadcode(char *filename, unsigned long startaddr, unsigned long virtphy_transl)
|
{
|
{
|
|
int breakpoint = 0;
|
|
|
transl_error = 0;
|
transl_error = 0;
|
transl_table = virtphy_transl;
|
transl_table = virtphy_transl;
|
freemem = startaddr;
|
freemem = startaddr;
|
printf("loadcode: filename %s startaddr=%x virtphy_transl=%x", filename, startaddr, virtphy_transl);
|
printf("loadcode: filename %s startaddr=%x virtphy_transl=%x", filename, startaddr, virtphy_transl);
|
identifyfile(filename);
|
identifyfile(filename);
|
if (transl_error)
|
if (transl_error)
|
return -1;
|
return -1;
|
else
|
else
|
return translate(freemem);
|
return translate(freemem,&breakpoint);
|
}
|
}
|
|
|
