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/*
* Copyright (c) 2024 Athena Systems LLC and Ian Marco Moffett
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <iostream>
#include <verilated.h>
#include <verilated_vcd_c.h>
#include "Vpimc.h"
#include "Vpimc___024root.h"
#define MAX_SIM_ITER 100
#define IRQ_WAIT_CLOCKS 5
int main(int argc, char** argv, char** env) {
Vpimc *pimc = new Vpimc;
vluint64_t posedge_cnt = 0;
Verilated::traceEverOn(true);
VerilatedVcdC *m_trace = new VerilatedVcdC;
pimc->trace(m_trace, 5);
m_trace->open("waveform.vcd");
pimc->notify = 1;
for (int i = 0; i < MAX_SIM_ITER; ++i) {
pimc->clk ^= 1;
pimc->eval();
if (pimc->clk == 1) {
++posedge_cnt;
/* Pulse IRQ line 3 high some cycles */
if (posedge_cnt == 5) {
pimc->irq_in |= (1 << 3);
} else if (posedge_cnt == 9) {
pimc->irq_in &= ~(1 << 3);
}
/* ACK IRQ */
if (posedge_cnt == 13) {
pimc->irqack = 1;
} else if (posedge_cnt == 17) {
pimc->irqack = 0;
}
/* Mask IRQ line 0 */
if (posedge_cnt == 15) {
pimc->mmio_addr = 0x1000;
pimc->mmio_wdata |= (1 << 8);
pimc->mmio_we = 1;
pimc->mmio_re = 0;
} else if (posedge_cnt == 18) {
pimc->mmio_we = 0;
}
/* Pulse IRQ line 0 high some cycles */
if (posedge_cnt == 19) {
pimc->irq_in |= (1 << 0);
} else if (posedge_cnt == 23) {
pimc->irq_in &= ~(1 << 0);
}
}
m_trace->dump(i);
}
m_trace->close();
delete pimc;
exit(EXIT_SUCCESS);
}
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