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parity_adjust.c
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parity_adjust.c
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/*
* parity_adjust.c
*
* Created on: Nov 26, 2018
* Author: nchhabri
*/
#include "zst.h"
void parity_adjust(node *parent)
{
node *new_node;
node *temp;
if(parent->num_left_inv % 2 == 1 && parent->num_right_inv % 2 == 1) {
if(parent->num_node_inv == 0) {
parent->num_node_inv = 1;
parent->num_left_inv += 1;
parent->num_right_inv += 1;
} else {
new_node = create_internal_node(parent->node_num, parent->left, parent->right);
new_node->x_coordinate = parent->x_coordinate;
new_node->y_coordinate = parent->y_coordinate;
new_node->left_wire_len = parent->left_wire_len;
new_node->right_wire_len = parent->right_wire_len;
parent->node_num = -1;
parent->left_wire_len = 0.0;
parent->right_wire_len = -1.0;
new_node->num_node_inv = parent->num_node_inv;
parent->num_node_inv = 1;
new_node->num_left_inv = parent->num_left_inv;
new_node->num_right_inv = parent->num_right_inv;
parent->num_left_inv = 1;
parent->num_right_inv = 0;
new_node->total_cap = parent->total_cap;
parent->total_cap = parent->num_node_inv * inv_cout + new_node->num_node_inv * inv_cin;
if(parent->next != NULL) {
if(parent->next->node_num != -1) {
if(parent->next->right == parent) {
if(parent->next->left->node_num != -1 && parent->next->left->num_node_inv == 0) {
parent->next->total_cap = parent->next->num_node_inv * inv_cout + parent->next->left->total_cap
+ c * parent->next->left_wire_len + parent->num_node_inv * inv_cin + c * parent->right_wire_len;
} else {
parent->next->total_cap = parent->next->num_node_inv * inv_cout + parent->next->left->num_node_inv * inv_cin
+ c * parent->next->left_wire_len + parent->num_node_inv * inv_cin + c * parent->right_wire_len;
}
} else {
temp = parent->next;
while(temp->left != parent) {
temp = temp->next;
}
if(temp->right->node_num != -1 && temp->right->num_node_inv == 0) {
temp->total_cap = temp->num_node_inv * inv_cout + parent->num_node_inv * inv_cin
+ c * temp->left_wire_len + temp->right->total_cap + c * temp->right_wire_len;
} else {
temp->total_cap = temp->num_node_inv * inv_cout + parent->num_node_inv * inv_cin
+ c * temp->left_wire_len + temp->right->num_node_inv * inv_cin + c * temp->right_wire_len;
}
}
} else {
parent->next->total_cap = parent->next->num_node_inv * inv_cout + parent->num_node_inv * inv_cin
+ c * parent->next->left_wire_len;
}
}
new_node->next = parent;
parent->right->next = new_node;
parent->left = new_node;
parent->right = NULL;
}
} else if(parent->num_left_inv % 2 == 1 && parent->num_right_inv % 2 == 0) {
new_node = create_internal_node(-1, parent->left, NULL);
new_node->x_coordinate = parent->left->x_coordinate;
new_node->y_coordinate = parent->left->y_coordinate;
new_node->left_wire_len = 0.0;
new_node->right_wire_len = -1.0;
new_node->num_node_inv = 1;
parent->num_left_inv += 1;
if(parent->left->node_num != -1 && parent->left->num_node_inv == 0) {
new_node->total_cap = new_node->num_node_inv * inv_cout + parent->left->total_cap;
} else {
new_node->total_cap = new_node->num_node_inv * inv_cout + parent->left->num_node_inv * inv_cin;
}
if(parent->right != NULL) {
if(parent->right->node_num != -1 && parent->right->num_node_inv == 0) {
parent->total_cap = parent->num_node_inv * inv_cout + new_node->num_node_inv * inv_cin
+ c * parent->left_wire_len + parent->right->total_cap + c * parent->right_wire_len;
} else {
parent->total_cap = parent->num_node_inv * inv_cout + new_node->num_node_inv * inv_cin
+ c * parent->left_wire_len + parent->right->num_node_inv * inv_cin + c * parent->right_wire_len;
}
} else {
parent->total_cap = parent->num_node_inv * inv_cout + new_node->num_node_inv * inv_cin + c * parent->left_wire_len;
}
new_node->next = parent->left->next;
parent->left->next = new_node;
parent->left = new_node;
} else if(parent->num_left_inv % 2 == 0 && parent->num_right_inv % 2 == 1) {
new_node = create_internal_node(-1, parent->right, NULL);
new_node->x_coordinate = parent->right->x_coordinate;
new_node->y_coordinate = parent->right->y_coordinate;
new_node->left_wire_len = 0.0;
new_node->right_wire_len = -1.0;
new_node->num_node_inv = 1;
parent->num_right_inv += 1;
if(parent->right->node_num != -1 && parent->right->num_node_inv == 0) {
new_node->total_cap = new_node->num_node_inv * inv_cout + parent->right->total_cap;
} else {
new_node->total_cap = new_node->num_node_inv * inv_cout + parent->right->num_node_inv * inv_cin;
}
if(parent->left->node_num != -1 && parent->left->num_node_inv == 0) {
parent->total_cap = parent->num_node_inv * inv_cout + parent->left->total_cap
+ c * parent->left_wire_len + new_node->num_node_inv * inv_cin + c * parent->right_wire_len;
} else {
parent->total_cap = parent->num_node_inv * inv_cout + parent->left->num_node_inv * inv_cin
+ c * parent->left_wire_len + new_node->num_node_inv * inv_cin + c * parent->right_wire_len;
}
new_node->next = parent->right->next;
parent->right->next = new_node;
parent->right = new_node;
}
}