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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <assert.h>
#include <string.h>
#include <string>
#include <vector>
#include <map>
#include <set>
FILE *fin, *fout;
std::string config_device;
std::vector<std::vector<std::string>> config_tile_type;
std::vector<std::vector<std::vector<std::vector<bool>>>> config_bits;
struct net_segment_name
{
int tile_x, tile_y;
std::string segment_name;
net_segment_name(int x, int y, std::string n) :
tile_x(x), tile_y(y), segment_name(n) { }
bool operator<(const net_segment_name &other) const {
if (tile_x != other.tile_x)
return tile_x < other.tile_x;
if (tile_y != other.tile_y)
return tile_y < other.tile_y;
return segment_name < other.segment_name;
}
};
std::map<net_segment_name, int> segment_to_net;
std::vector<std::set<net_segment_name>> net_to_segments;
std::map<int, std::set<int>> net_buffers, net_rbuffers, net_routing;
std::set<int> used_nets;
void read_chipdb()
{
char buffer[1024];
snprintf(buffer, 1024, "/usr/local/share/icebox/chipdb-%s.txt", config_device.c_str());
FILE *fdb = fopen(buffer, "r");
if (fdb == nullptr) {
perror("Can't open chipdb file");
exit(1);
}
std::string mode;
int current_net = -1;
std::string thiscfg;
while (fgets(buffer, 1024, fdb))
{
if (buffer[0] == '#')
continue;
const char *tok = strtok(buffer, " \t\r\n");
if (tok == nullptr)
continue;
if (tok[0] == '.')
{
mode = tok;
if (mode == ".net")
{
current_net = atoi(strtok(nullptr, " \t\r\n"));
if (current_net >= int(net_to_segments.size()))
net_to_segments.resize(current_net+1);
}
if (mode == ".buffer" || mode == ".routing")
{
int tile_x = atoi(strtok(nullptr, " \t\r\n"));
int tile_y = atoi(strtok(nullptr, " \t\r\n"));
current_net = atoi(strtok(nullptr, " \t\r\n"));
thiscfg = "";
while ((tok = strtok(nullptr, " \t\r\n")) != nullptr) {
int bit_row, bit_col, rc;
rc = sscanf(tok, "B%d[%d]", &bit_row, &bit_col);
assert(rc == 2);
thiscfg.push_back(config_bits[tile_x][tile_y][bit_row][bit_col] ? '1' : '0');
}
}
continue;
}
if (mode == ".net") {
int tile_x = atoi(tok);
int tile_y = atoi(strtok(nullptr, " \t\r\n"));
std::string segment_name = strtok(nullptr, " \t\r\n");
net_segment_name seg(tile_x, tile_y, segment_name);
segment_to_net[seg] = current_net;
net_to_segments[current_net].insert(seg);
}
if (mode == ".buffer" && !strcmp(tok, thiscfg.c_str())) {
int other_net = atoi(strtok(nullptr, " \t\r\n"));
net_rbuffers[current_net].insert(other_net);
net_buffers[other_net].insert(current_net);
used_nets.insert(current_net);
used_nets.insert(other_net);
}
if (mode == ".routing" && !strcmp(tok, thiscfg.c_str())) {
int other_net = atoi(strtok(nullptr, " \t\r\n"));
net_routing[current_net].insert(other_net);
net_routing[other_net].insert(current_net);
used_nets.insert(current_net);
used_nets.insert(other_net);
}
}
fclose(fdb);
}
void read_config()
{
char buffer[128];
int tile_x, tile_y, line_nr = -1;
while (fgets(buffer, 128, fin))
{
if (buffer[0] == '.')
{
line_nr = -1;
const char *tok = strtok(buffer, " \t\r\n");
if (!strcmp(tok, ".device"))
{
config_device = strtok(nullptr, " \t\r\n");
} else
if (!strcmp(tok, ".io_tile") || !strcmp(tok, ".logic_tile") ||
!strcmp(tok, ".ramb_tile") || !strcmp(tok, ".ramt_tile"))
{
line_nr = 0;
tile_x = atoi(strtok(nullptr, " \t\r\n"));
tile_y = atoi(strtok(nullptr, " \t\r\n"));
if (tile_x >= int(config_tile_type.size())) {
config_tile_type.resize(tile_x+1);
config_bits.resize(tile_x+1);
}
if (tile_y >= int(config_tile_type.at(tile_x).size())) {
config_tile_type.at(tile_x).resize(tile_y+1);
config_bits.at(tile_x).resize(tile_y+1);
}
if (!strcmp(tok, ".io_tile"))
config_tile_type.at(tile_x).at(tile_y) = "io";
if (!strcmp(tok, ".logic_tile"))
config_tile_type.at(tile_x).at(tile_y) = "logic";
if (!strcmp(tok, ".ramb_tile"))
config_tile_type.at(tile_x).at(tile_y) = "ramb";
if (!strcmp(tok, ".ramt_tile"))
config_tile_type.at(tile_x).at(tile_y) = "ramt";
}
} else
if (line_nr >= 0)
{
assert(int(config_bits.at(tile_x).at(tile_y).size()) == line_nr);
config_bits.at(tile_x).at(tile_y).resize(line_nr+1);
for (int i = 0; buffer[i] == '0' || buffer[i] == '1'; i++)
config_bits.at(tile_x).at(tile_y).at(line_nr).push_back(buffer[i] == '1');
line_nr++;
}
}
}
void help(const char *cmd)
{
printf("\n");
printf("Usage: %s [options] input.txt [output.v]\n", cmd);
printf("\n");
exit(1);
}
int main(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "")) != -1)
{
switch (opt)
{
default:
help(argv[0]);
}
}
if (optind+1 == argc) {
fin = fopen(argv[optind], "r");
if (fin == nullptr) {
perror("Can't open input file");
exit(1);
}
fout = stdout;
} else
if (optind+2 == argc) {
fin = fopen(argv[optind], "r");
if (fin == nullptr) {
perror("Can't open input file");
exit(1);
}
fout = fopen(argv[optind+1], "w");
if (fout == nullptr) {
perror("Can't open output file");
exit(1);
}
} else
help(argv[0]);
printf("// Reading input .txt file..\n");
read_config();
printf("// Reading chipdb file..\n");
read_chipdb();
return 0;
}
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