////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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// Filename: scopecls.cpp
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// Filename: scopecls.cpp
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//
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//
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// Project: WBScope, a wishbone hosted scope
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// Project: WBScope, a wishbone hosted scope
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//
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//
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// Purpose: After rebuilding the same code over and over again for every
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// Purpose: After rebuilding the same code over and over again for every
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// "scope" I tried to interact with, I thought it would be simpler
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// "scope" I tried to interact with, I thought it would be simpler
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// to try to make a more generic interface, that other things could plug
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// to try to make a more generic interface, that other things could plug
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// into. This is that more generic interface.
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// into. This is that more generic interface.
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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 Technology, LLC
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// Gisselquist Technology, 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) 2015-2017, Gisselquist Technology, LLC
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// Copyright (C) 2015-2017, 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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//
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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 <unistd.h>
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#include <unistd.h>
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#include <strings.h>
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#include <strings.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 <signal.h>
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#include <signal.h>
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#include <assert.h>
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#include <assert.h>
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#include <time.h>
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#include <time.h>
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|
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#include "devbus.h"
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#include "devbus.h"
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#include "scopecls.h"
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#include "scopecls.h"
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|
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bool SCOPE::ready() {
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bool SCOPE::ready() {
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unsigned v;
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unsigned v;
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v = m_fpga->readio(m_addr);
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v = m_fpga->readio(m_addr);
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if (m_scoplen == 0) {
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if (m_scoplen == 0) {
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m_scoplen = (1<<((v>>20)&0x01f));
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m_scoplen = (1<<((v>>20)&0x01f));
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m_holdoff = (v & ((1<<20)-1));
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} v = (v>>28)&6;
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} v = (v>>28)&6;
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return (v==6);
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return (v==6);
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}
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}
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|
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void SCOPE::decode_control(void) {
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void SCOPE::decode_control(void) {
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unsigned v;
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unsigned v;
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|
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v = m_fpga->readio(m_addr);
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v = m_fpga->readio(m_addr);
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printf("\tCNTRL-REG:\t0x%08x\n", v);
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printf("\t31. RESET:\t%s\n", (v&0x80000000)?"Ongoing":"Complete");
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printf("\t31. RESET:\t%s\n", (v&0x80000000)?"Ongoing":"Complete");
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printf("\t30. STOPPED:\t%s\n", (v&0x40000000)?"Yes":"No");
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printf("\t30. STOPPED:\t%s\n", (v&0x40000000)?"Yes":"No");
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printf("\t29. TRIGGERED:\t%s\n", (v&0x20000000)?"Yes":"No");
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printf("\t29. TRIGGERED:\t%s\n", (v&0x20000000)?"Yes":"No");
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printf("\t28. PRIMED:\t%s\n", (v&0x10000000)?"Yes":"No");
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printf("\t28. PRIMED:\t%s\n", (v&0x10000000)?"Yes":"No");
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printf("\t27. MANUAL:\t%s\n", (v&0x08000000)?"Yes":"No");
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printf("\t27. MANUAL:\t%s\n", (v&0x08000000)?"Yes":"No");
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printf("\t26. DISABLED:\t%s\n", (v&0x04000000)?"Yes":"No");
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printf("\t26. DISABLED:\t%s\n", (v&0x04000000)?"Yes":"No");
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printf("\t25. ZERO:\t%s\n", (v&0x02000000)?"Yes":"No");
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printf("\t25. ZERO:\t%s\n", (v&0x02000000)?"Yes":"No");
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printf("\tSCOPLEN:\t%08x (%d)\n", m_scoplen, m_scoplen);
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printf("\tSCOPLEN:\t%08x (%d)\n", m_scoplen, m_scoplen);
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printf("\tHOLDOFF:\t%08x\n", (v&0x0fffff));
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printf("\tHOLDOFF:\t%08x\n", (v&0x0fffff));
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printf("\tTRIGLOC:\t%d\n", m_scoplen-(v&0x0fffff));
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printf("\tTRIGLOC:\t%d\n", m_scoplen-(v&0x0fffff));
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}
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}
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|
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int SCOPE::scoplen(void) {
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int SCOPE::scoplen(void) {
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unsigned v, lgln;
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unsigned v, lgln;
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|
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// If the scope length is zero, then the scope isn't present.
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// If the scope length is zero, then the scope isn't present.
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// We use a length of zero here to also represent whether or not we've
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// We use a length of zero here to also represent whether or not we've
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// looked up the length by reading from the scope.
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// looked up the length by reading from the scope.
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if (m_scoplen == 0) {
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if (m_scoplen == 0) {
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v = m_fpga->readio(m_addr);
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v = m_fpga->readio(m_addr);
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m_holdoff = (v & ((1<<20)-1));
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|
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// Since the length of the scope memory is a configuration
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// Since the length of the scope memory is a configuration
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// parameter internal to the scope, we read it here to find
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// parameter internal to the scope, we read it here to find
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// out how the scope was configured.
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// out how the scope was configured.
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lgln = (v>>20) & 0x1f;
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lgln = (v>>20) & 0x1f;
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|
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// If the length is still zero, then there is no scope installed
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// If the length is still zero, then there is no scope installed
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if (lgln != 0) {
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if (lgln != 0) {
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// Otherwise, the scope length contained in the device
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// Otherwise, the scope length contained in the device
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// control register is the log base 2 of the actual
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// control register is the log base 2 of the actual
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// length of what's in the FPGA. Here, we just convert
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// length of what's in the FPGA. Here, we just convert
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// that to the actual length of the scope.
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// that to the actual length of the scope.
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m_scoplen = (1<<lgln);
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m_scoplen = (1<<lgln);
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}
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}
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// else we already know the length of the scope, and don't need to
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// else we already know the length of the scope, and don't need to
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// slow down to read that length from the device a second time.
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// slow down to read that length from the device a second time.
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} return m_scoplen;
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} return m_scoplen;
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}
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}
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//
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//
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// rawread
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// rawread
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//
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//
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// Read the scope data from the scope.
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// Read the scope data from the scope.
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void SCOPE::rawread(void) {
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void SCOPE::rawread(void) {
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// If we've already read the data from the scope, then we don't need
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// If we've already read the data from the scope, then we don't need
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// to read it a second time.
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// to read it a second time.
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if (m_data)
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if (m_data)
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return;
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return;
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// Let's get the length of the scope, and check that it is a valid
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// Let's get the length of the scope, and check that it is a valid
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// length
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// length
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if (scoplen() <= 4) {
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if (scoplen() <= 4) {
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printf("ERR: Scope has less than a minimum length. Is it truly a scope?\n");
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printf("ERR: Scope has less than a minimum length. Is it truly a scope?\n");
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return;
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return;
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}
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}
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// Now that we know the size of the scopes buffer, let's allocate a
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// Now that we know the size of the scopes buffer, let's allocate a
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// buffer to hold all this data
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// buffer to hold all this data
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m_data = new DEVBUS::BUSW[m_scoplen];
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m_data = new DEVBUS::BUSW[m_scoplen];
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|
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// There are two means of reading from a DEVBUS interface: The first
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// There are two means of reading from a DEVBUS interface: The first
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// is a vector read, optimized so that the address and read command
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// is a vector read, optimized so that the address and read command
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// only needs to be sent once. This is the optimal means. However,
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// only needs to be sent once. This is the optimal means. However,
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// if the bus isn't (yet) trustworthy, it may be more reliable to access
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// if the bus isn't (yet) trustworthy, it may be more reliable to access
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// the port by reading one register at a time--hence the second method.
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// the port by reading one register at a time--hence the second method.
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// If the bus works, you'll want to use readz(): read scoplen values
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// If the bus works, you'll want to use readz(): read scoplen values
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// into the buffer, from the address WBSCOPEDATA, without incrementing
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// into the buffer, from the address WBSCOPEDATA, without incrementing
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// the address each time (hence the 'z' in readz--for zero increment).
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// the address each time (hence the 'z' in readz--for zero increment).
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if (m_vector_read) {
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if (m_vector_read) {
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m_fpga->readz(m_addr+4, m_scoplen, m_data);
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m_fpga->readz(m_addr+4, m_scoplen, m_data);
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} else {
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} else {
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for(unsigned int i=0; i<m_scoplen; i++)
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for(unsigned int i=0; i<m_scoplen; i++)
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m_data[i] = m_fpga->readio(m_addr+4);
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m_data[i] = m_fpga->readio(m_addr+4);
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}
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}
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}
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}
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|
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void SCOPE::print(void) {
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void SCOPE::print(void) {
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DEVBUS::BUSW addrv = 0;
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unsigned long addrv = 0, alen;
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int offset;
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|
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rawread();
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rawread();
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|
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// Count how many values are in our (possibly compressed) buffer.
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// If it weren't for the compression, this'd be m_scoplen
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alen = getaddresslen();
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|
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// If the holdoff is zero, the triggered item is the very
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// last one.
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offset = alen - m_holdoff -1;
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|
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if(m_compressed) {
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if(m_compressed) {
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for(int i=0; i<(int)m_scoplen; i++) {
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for(int i=0; i<(int)m_scoplen; i++) {
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if ((m_data[i]>>31)&1) {
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if ((m_data[i]>>31)&1) {
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addrv += (m_data[i]&0x7fffffff);
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addrv += (m_data[i]&0x7fffffff) + 1;
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printf(" ** (+0x%08x = %8d)\n",
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printf(" ** (+0x%08x = %8d)\n",
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(m_data[i]&0x07fffffff),
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(m_data[i]&0x07fffffff),
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(m_data[i]&0x07fffffff));
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(m_data[i]&0x07fffffff));
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continue;
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continue;
|
}
|
}
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printf("%10d %08x: ", addrv++, m_data[i]);
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printf("%10ld %08x: ", addrv++, m_data[i]);
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decode(m_data[i]);
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decode(m_data[i]);
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if ((int)addrv == offset)
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printf(" <--- TRIGGER");
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printf("\n");
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printf("\n");
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}
|
}
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} else {
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} else {
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for(int i=0; i<(int)m_scoplen; i++) {
|
for(int i=0; i<(int)m_scoplen; i++) {
|
if ((i>0)&&(m_data[i] == m_data[i-1])&&(i<(int)(m_scoplen-1))) {
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if ((i>0)&&(m_data[i] == m_data[i-1])&&(i<(int)(m_scoplen-1))) {
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if ((i>2)&&(m_data[i] != m_data[i-2]))
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if ((i>2)&&(m_data[i] != m_data[i-2]))
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printf(" **** ****\n");
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printf(" **** ****\n");
|
continue;
|
continue;
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} printf("%9d %08x: ", i, m_data[i]);
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} printf("%9d %08x: ", i, m_data[i]);
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decode(m_data[i]);
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decode(m_data[i]);
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|
|
|
if (i == offset)
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printf(" <--- TRIGGER");
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printf("\n");
|
printf("\n");
|
}
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}
|
}
|
}
|
}
|
}
|
|
|
void SCOPE::write_trace_timescale(FILE *fp) {
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void SCOPE::write_trace_timescale(FILE *fp) {
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fprintf(fp, "$timescle 1ns $end\n\n");
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fprintf(fp, "$timescale 1ns $end\n\n");
|
|
}
|
|
|
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void SCOPE::write_trace_timezero(FILE *fp, int offset) {
|
|
double dwhen;
|
|
long when_ns;
|
|
|
|
dwhen = 1.0/((double)m_clkfreq_hz) * (offset);
|
|
when_ns = (unsigned long)(dwhen * 1e9);
|
|
fprintf(fp, "$timezero %ld $end\n\n", -when_ns);
|
}
|
}
|
|
|
// $dumpoff and $dumpon
|
// $dumpoff and $dumpon
|
void SCOPE::write_trace_header(FILE *fp) {
|
void SCOPE::write_trace_header(FILE *fp, int offset) {
|
time_t now;
|
time_t now;
|
|
|
time(&now);
|
time(&now);
|
fprintf(fp, "$version Generated by WBScope $end\n");
|
fprintf(fp, "$version Generated by WBScope $end\n");
|
fprintf(fp, "$date %s\n $end\n", ctime(&now));
|
fprintf(fp, "$date %s\n $end\n", ctime(&now));
|
write_trace_timescale(fp);
|
write_trace_timescale(fp);
|
|
if (offset != 0)
|
|
write_trace_timezero(fp, offset);
|
|
|
fprintf(fp, " $scope module WBSCOPE $end\n");
|
fprintf(fp, " $scope module WBSCOPE $end\n");
|
// Print out all of the various values
|
// Print out all of the various values
|
|
if (m_compressed) {
|
|
fprintf(fp, " $var wire %2d \'R _raw_data [%d:0] $end\n", 31,
|
|
30);
|
|
} else {
|
fprintf(fp, " $var wire %2d \'C clk $end\n", 1);
|
fprintf(fp, " $var wire %2d \'C clk $end\n", 1);
|
fprintf(fp, " $var wire %2d \'R _raw_data [%d:0] $end\n",
|
fprintf(fp, " $var wire %2d \'R _raw_data [%d:0] $end\n", 32,
|
(m_compressed)?31:32,
|
31);
|
(m_compressed)?30:31);
|
}
|
|
|
|
// Add in a fake _trigger variable to the VCD file we are producing,
|
|
// so we can see when our trigger took place (assuming the holdoff is
|
|
// such that it is within the collect)
|
|
fprintf(fp, " $var wire %2d \'T _trigger $end\n", 1);
|
|
|
for(unsigned i=0; i<m_traces.size(); i++) {
|
for(unsigned i=0; i<m_traces.size(); i++) {
|
TRACEINFO *info = m_traces[i];
|
TRACEINFO *info = m_traces[i];
|
fprintf(fp, " $var wire %2d %s %s",
|
fprintf(fp, " $var wire %2d %s %s",
|
info->m_nbits, info->m_key, info->m_name);
|
info->m_nbits, info->m_key, info->m_name);
|
if ((info->m_nbits > 0)&&(NULL == strchr(info->m_name, '[')))
|
if ((info->m_nbits > 0)&&(NULL == strchr(info->m_name, '[')))
|
fprintf(fp, "[%d:0] $end\n", info->m_nbits-1);
|
fprintf(fp, "[%d:0] $end\n", info->m_nbits-1);
|
else
|
else
|
fprintf(fp, " $end\n");
|
fprintf(fp, " $end\n");
|
}
|
}
|
|
|
fprintf(fp, " $upscope $end\n");
|
fprintf(fp, " $upscope $end\n");
|
fprintf(fp, "$enddefinitions $end\n");
|
fprintf(fp, "$enddefinitions $end\n");
|
}
|
}
|
|
|
void SCOPE::write_binary_trace(FILE *fp, const int nbits, unsigned val,
|
void SCOPE::write_binary_trace(FILE *fp, const int nbits, unsigned val,
|
const char *str) {
|
const char *str) {
|
if (nbits <= 1) {
|
if (nbits <= 1) {
|
fprintf(fp, "%d%s\n", val&1, str);
|
fprintf(fp, "%d%s\n", val&1, str);
|
return;
|
return;
|
}
|
}
|
if ((unsigned)nbits < sizeof(val)*8)
|
if ((unsigned)nbits < sizeof(val)*8)
|
val &= ~(-1<<nbits);
|
val &= ~(-1<<nbits);
|
fputs("b", fp);
|
fputs("b", fp);
|
for(int i=0; i<nbits; i++)
|
for(int i=0; i<nbits; i++)
|
fprintf(fp, "%d", (val>>(nbits-1-i))&1);
|
fprintf(fp, "%d", (val>>(nbits-1-i))&1);
|
fprintf(fp, " %s\n", str);
|
fprintf(fp, " %s\n", str);
|
}
|
}
|
|
|
void SCOPE::write_binary_trace(FILE *fp, TRACEINFO *info, unsigned value) {
|
void SCOPE::write_binary_trace(FILE *fp, TRACEINFO *info, unsigned value) {
|
write_binary_trace(fp, info->m_nbits, (value>>info->m_nshift),
|
write_binary_trace(fp, info->m_nbits, (value>>info->m_nshift),
|
info->m_key);
|
info->m_key);
|
}
|
}
|
|
|
void SCOPE::register_trace(const char *name,
|
void SCOPE::register_trace(const char *name,
|
unsigned nbits, unsigned shift) {
|
unsigned nbits, unsigned shift) {
|
TRACEINFO *info = new TRACEINFO;
|
TRACEINFO *info = new TRACEINFO;
|
int nkey = m_traces.size();
|
int nkey = m_traces.size();
|
|
|
info->m_name = name;
|
info->m_name = name;
|
info->m_nbits = nbits;
|
info->m_nbits = nbits;
|
info->m_nshift = shift;
|
info->m_nshift = shift;
|
|
|
info->m_key[0] = 'v';
|
info->m_key[0] = 'v';
|
if (nkey < 26)
|
if (nkey < 26)
|
info->m_key[1] = 'a'+nkey;
|
info->m_key[1] = 'a'+nkey;
|
else if (nkey < 26+26)
|
else if (nkey < 26+26)
|
info->m_key[1] = 'A'+nkey-26;
|
info->m_key[1] = 'A'+nkey-26;
|
else // if (nkey < 26+26+10) // Should never happen
|
else // if (nkey < 26+26+10) // Should never happen
|
info->m_key[1] = '0'+nkey-26-26;
|
info->m_key[1] = '0'+nkey-26-26;
|
info->m_key[2] = '\0';
|
info->m_key[2] = '\0';
|
info->m_key[3] = '\0';
|
info->m_key[3] = '\0';
|
|
|
m_traces.push_back(info);
|
m_traces.push_back(info);
|
}
|
}
|
|
|
void SCOPE::define_traces(void) {}
|
/*
|
|
* getaddresslen(void)
|
void SCOPE::writevcd(const char *trace_file_name) {
|
*
|
FILE *fp = fopen(trace_file_name, "w");
|
* Returns the number of items in the scope's buffer. For the uncompressed
|
|
* scope, this is just the size of hte scope. For the compressed scope ... this
|
|
* is a touch longer.
|
|
*/
|
|
unsigned SCOPE::getaddresslen(void) {
|
|
// Find the offset to the trigger
|
|
if (m_compressed) {
|
|
// First, find the overall length
|
|
//
|
|
// If we are compressed, then *every* item increments
|
|
// the address length
|
|
unsigned alen = m_scoplen;
|
|
//
|
|
// Some items increment it more.
|
|
for(int i=0; i<(int)m_scoplen; i++) {
|
|
if ((m_data[i]&0x80000000)&&(i!=0))
|
|
alen += m_data[i] & 0x7fffffff;
|
|
}
|
|
|
if (fp == NULL) {
|
return alen;
|
fprintf(stderr, "ERR: Cannot open %s for writing!\n", trace_file_name);
|
} return m_scoplen;
|
fprintf(stderr, "ERR: Trace file not written\n");
|
|
return;
|
|
}
|
}
|
|
|
|
/*
|
|
* define_traces
|
|
*
|
|
* This is a user stub. User programs should define this function.
|
|
*/
|
|
void SCOPE::define_traces(void) {}
|
|
|
|
void SCOPE::writevcd(FILE *fp) {
|
|
unsigned alen;
|
|
int offset = 0;
|
|
|
if (!m_data)
|
if (!m_data)
|
rawread();
|
rawread();
|
|
|
write_trace_header(fp);
|
// If the traces haven't yet been defined, then define them now.
|
|
if (m_traces.size()==0)
|
|
define_traces();
|
|
|
|
// Count how many values are in our (possibly compressed) buffer.
|
|
// If it weren't for the compression, this'd be m_scoplen
|
|
alen = getaddresslen();
|
|
|
|
// If the holdoff is zero, the triggered item is the very
|
|
// last one.
|
|
offset = alen - m_holdoff -1;
|
|
|
|
// Write the file header.
|
|
write_trace_header(fp, offset);
|
|
|
|
// And split into two paths--one for compressed scopes (wbscopc), and
|
|
// the other for the more normal scopes (wbscope).
|
|
if(m_compressed) {
|
|
// With compressed scopes, you need to track the address
|
|
// relative to the beginning.
|
|
unsigned long addrv = 0;
|
|
unsigned long now_ns;
|
|
double dnow;
|
|
bool last_trigger = true;
|
|
|
|
// Loop over each data word read from the scope
|
|
for(int i=0; i<(int)m_scoplen; i++) {
|
|
// If the high bit is set, the address jumps by more
|
|
// than an increment
|
|
if ((m_data[i]>>31)&1) {
|
|
if (i!=0) {
|
|
if (last_trigger) {
|
|
// If the trigger was valid
|
|
// on the last clock, then we
|
|
// need to include the change
|
|
// to drop it.
|
|
//
|
|
dnow = 1.0/((double)m_clkfreq_hz) * (addrv+1);
|
|
now_ns = (unsigned long)(dnow * 1e9);
|
|
fprintf(fp, "#%ld\n", now_ns);
|
|
fprintf(fp, "0\'T\n");
|
|
}
|
|
// But ... with nothing to write out.
|
|
addrv += (m_data[i]&0x7fffffff) + 1;
|
|
} continue;
|
|
}
|
|
|
|
// Produce a line identifying the time associated with
|
|
// this piece of data.
|
|
//
|
|
// dnow is the current time represented as a double
|
|
dnow = 1.0/((double)m_clkfreq_hz) * addrv;
|
|
// Convert to nanoseconds, and to integers.
|
|
now_ns = (unsigned long)(dnow * 1e9);
|
|
|
|
fprintf(fp, "#%ld\n", now_ns);
|
|
|
|
if ((int)(addrv-alen) == offset) {
|
|
fprintf(fp, "1\'T\n");
|
|
last_trigger = true;
|
|
} else if (last_trigger)
|
|
fprintf(fp, "0\'T\n");
|
|
|
|
// For compressed data, only the lower 31 bits are
|
|
// valid. Write those bits to the VCD file as a raw
|
|
// value.
|
|
write_binary_trace(fp, 31, m_data[i], "\'R\n");
|
|
|
|
// Finally, walk through all of the user defined traces,
|
|
// writing each to the VCD file.
|
|
for(unsigned k=0; k<m_traces.size(); k++) {
|
|
TRACEINFO *info = m_traces[k];
|
|
write_binary_trace(fp, info, m_data[i]);
|
|
}
|
|
|
|
addrv++;
|
|
}
|
|
} else {
|
|
//
|
|
// Uncompressed scope.
|
|
//
|
|
unsigned now_ns;
|
|
double dnow;
|
|
|
|
// We assume a clock signal, and set it to one and zero.
|
|
// We also assume everything changes on the positive edge of
|
|
// that clock within here.
|
|
|
|
// Loop over all data words
|
for(int i=0; i<(int)m_scoplen; i++) {
|
for(int i=0; i<(int)m_scoplen; i++) {
|
// Positive edge of the clock (everything is assumed to
|
// Positive edge of the clock (everything is assumed to
|
// be on the positive edge)
|
// be on the positive edge)
|
fprintf(fp, "#%d\n", m_scoplen * 10);
|
|
|
|
|
//
|
|
// Clock goes high
|
|
//
|
|
|
|
// Write the current (relative) time of this data word
|
|
dnow = 1.0/((double)m_clkfreq_hz) * i;
|
|
now_ns = (unsigned)(dnow * 1e9 + 0.5);
|
|
fprintf(fp, "#%d\n", now_ns);
|
|
|
fprintf(fp, "1\'C\n");
|
fprintf(fp, "1\'C\n");
|
write_binary_trace(fp, (m_compressed)?31:32,
|
write_binary_trace(fp, (m_compressed)?31:32,
|
m_data[i], "\'R\n");
|
m_data[i], "\'R\n");
|
|
|
|
if (i == offset)
|
|
fprintf(fp, "1\'T\n");
|
|
else // if (addrv == offset+1)
|
|
fprintf(fp, "0\'T\n");
|
|
|
for(unsigned k=0; k<m_traces.size(); k++) {
|
for(unsigned k=0; k<m_traces.size(); k++) {
|
TRACEINFO *info = m_traces[k];
|
TRACEINFO *info = m_traces[k];
|
write_binary_trace(fp, info, m_data[i]);
|
write_binary_trace(fp, info, m_data[i]);
|
}
|
}
|
|
|
|
//
|
// Clock goes to zero
|
// Clock goes to zero
|
fprintf(fp, "#%d\n", m_scoplen * 10 + 5);
|
//
|
|
|
|
// Add half a clock period to our time
|
|
dnow += 1.0/((double)m_clkfreq_hz)/2.;
|
|
now_ns = (unsigned)(dnow * 1e9 + 0.5);
|
|
fprintf(fp, "#%d\n", now_ns);
|
|
|
|
// Now finally write the clock as zero.
|
fprintf(fp, "0\'C\n");
|
fprintf(fp, "0\'C\n");
|
}
|
}
|
}
|
}
|
|
}
|
|
|
|
/*
|
|
* writevcd
|
|
*
|
|
* Main user entry point for VCD file creation. This just opens a file of the
|
|
* given name, and writes the VCD info to it. If the file cannot be opened,
|
|
* an error is written to the standard error stream, and the routine returns.
|
|
*/
|
|
void SCOPE::writevcd(const char *trace_file_name) {
|
|
FILE *fp = fopen(trace_file_name, "w");
|
|
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "ERR: Cannot open %s for writing!\n", trace_file_name);
|
|
fprintf(stderr, "ERR: Trace file not written\n");
|
|
return;
|
|
}
|
|
|
|
writevcd(fp);
|
|
|
|
fclose(fp);
|
|
}
|
|
|
|
|
