AVR Freaks

I've code shift register and decade counter to display a 8x8 led matrix. The bits seem to be off by 1 bit, e.g I expect them to go from row-1, column-1 to r-2,c-2 but the mid part, i.e. r-1,c-2 is also lighting.

/*
 * free_lance_2.c
 *
 * Created: 23-05-2020 11:23:32
 *  Author: Chirag Goyal
 */ 

#include <avr/io.h>
#define F_CPU 16000000UL
#include<util/delay.h>
#define reg_port PORTD
#define reg_data PD7
#define reg_clock PD1
#define reg_latch PD5
#define data_high() (reg_port|=(1<<reg_data))
#define data_low() (reg_port&=~(1<<reg_data))
#define cd_en PD2
#define cd_clk PD3
#define cd_rst PD4
#define del 1

void reg_pulse()		//to pulse the shift register
{
	reg_port|=(1<<reg_clock);
	reg_port&=~(1<<reg_clock);
}

void reg_store()		//to store the data
{
	reg_port|=(1<<reg_latch);
	_delay_ms(del);
	reg_port&=~(1<<reg_latch);
	_delay_ms(del);
}


void counter_init()
{
	reg_port&=~(1<<cd_en);
	reg_port&=~(1<<cd_rst);
}

void reg_write(unsigned char x)
{
	
	for(unsigned char i=0;i<8;i++)
	{
		if(x&0b10000000)
			data_high();
		else
			data_low();
		reg_pulse();
		x=x<<1;
	}
	reg_store();
}
void counter()
{
	reg_port|=(1<<cd_clk);
	_delay_ms(del);
	reg_port&=~(1<<cd_clk);
	//_delay_ms(del);
	
}

int main(void)
{
	DDRD=0xff;
	unsigned char c[8]={0b00000000,0b11111101,0b11111011,0b11110111,0b11101111,0b11011111,0b10111111,0b00000000};
	unsigned char d[8]={0b00000000,0b11111101,0b11111011,0b11110111,0b11110111,0b11111011,0b11111101,0b00000000};
	
	counter_init();
    while(1)
    {
        //TODO:: Please write your application code 
		

		for(unsigned char k=0;k<48;k++)
		for(unsigned char j=0;j<8;j++)
		{
			reg_write(c[j]);
			counter();
			//_delay_ms(1);
		}
		
		for(unsigned char k=0;k<48;k++)
		for(unsigned char j=0;j<8;j++)
		{
			reg_write(d[j]);
			counter();
			//_delay_ms(1);
		}
    }
}

In the attachments, I've printed N and M.