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157 lines
4.3 KiB
157 lines
4.3 KiB
/* This is a very mangled version of Vadc__main.cpp as generated by Verilator. */
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// Verilated -*- C++ -*-
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// DESCRIPTION: main() calling loop, created with Verilator --main
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#include "verilated.h"
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#include "Vlng.h"
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#include "ngspice/cmtypes.h" // For Digital_t
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#include "ngspice/cosim.h" // For struct co_info and prototypes
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//======================
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/* Structure for the input table. */
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struct input {
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const char *name;
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unsigned int offset;
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unsigned int count;
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};
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/* This VL_DATA macro is used in header files inputs.h, outputs.h and inouts.h
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* to write functions accept_input() and step().
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* The macro is used several times with different definitions.
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*/
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/* Generate the previous values table used by step(). */
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#define VL_DATA(size, name, msb, lsb) + msb - lsb + 1
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static const unsigned int outs = 0
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#include "outputs.h"
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;
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static const unsigned int inouts = 0
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#include "inouts.h"
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;
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static unsigned char previous_output[outs + inouts];
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#undef VL_DATA
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/* The input function: it should ignore out-of-range values of index. */
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#define VL_DATA(size, name, msb, lsb) \
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if (index >= msb - lsb + 1) { \
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index -= msb - lsb + 1; \
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} else if (msb == 0 && lsb == 0) { \
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topp->name = val ? 1 : 0; \
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return; \
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} else { \
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if (val) \
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topp->name |= (1 << (msb - index)); \
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else \
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topp->name &= (1 << (msb - index)); \
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return; \
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}
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static void accept_input(struct co_info *pinfo,
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unsigned int index, Digital_t *vp)
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{
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Vlng *topp = (Vlng *)pinfo->handle;
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unsigned int val, offset;
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val = vp->state;
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if (val == UNKNOWN)
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return; // Verilator simulations are two-state.
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#include "inputs.h"
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/* For inout ports the new value must be stored to detect changes. */
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offset = outs;
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#undef VL_DATA
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#define VL_DATA(size, name, msb, lsb) \
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if (index >= msb - lsb + 1) { \
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index -= msb - lsb + 1; \
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offset += msb - lsb + 1; \
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} else if (msb == 0 && lsb == 0) { \
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topp->name = val ? 1 : 0; \
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previous_output[index + offset] = val; \
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return; \
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} else { \
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if (val) \
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topp->name | (1 << (msb - index)); \
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else \
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topp->name &= (1 << (msb - index)); \
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previous_output[index + offset] = val; \
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return; \
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}
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#include "inouts.h"
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}
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#undef VL_DATA
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/* The step function that calls the Verilator code. */
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#define VL_DATA(size, name, msb, lsb) \
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for (i = msb; i >= lsb; --i) { \
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if (topp->name & (1 << i)) \
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bit = 1; \
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else \
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bit = 0; \
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if (bit ^ previous_output[index]) { \
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previous_output[index] = bit; \
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oval.state = (Digital_State_t)bit; \
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(*pinfo->out_fn)(pinfo, index, &oval); \
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} \
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++index; \
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}
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static void step(struct co_info *pinfo)
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{
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static Digital_t oval = {ZERO, STRONG};
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Vlng *topp;
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int index, i;
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unsigned char bit;
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topp = (Vlng *)pinfo->handle;
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topp->eval();
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/* Now scan the outputs for changes. */
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index = 0;
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#include "outputs.h"
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#include "inouts.h"
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}
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#undef VL_DATA
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extern "C" void Cosim_setup(struct co_info *pinfo)
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{
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int i;
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// Setup context, and defaults
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Verilated::debug(0);
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const std::unique_ptr<VerilatedContext> contextp{new VerilatedContext};
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// Construct the Verilated model, from Vtop.h generated from Verilating
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Vlng *topp{new Vlng{contextp.get()}};
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/* Return information to caller. */
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pinfo->handle = topp;
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pinfo->step = step;
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#define VL_DATA(size, name, msb, lsb) i += msb - lsb + 1; // Count ports
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i = 0;
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#include "inputs.h"
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pinfo->in_count = i;
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pinfo->out_count = outs;
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pinfo->inout_count = inouts;
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pinfo->in_fn = accept_input;
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pinfo->method = After_input; // Verilator requires input to advance.
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}
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#undef VL_DATA
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