difference is slight eor vs andi

#include <avr/io.h>
#include <stdlib.h>
#include <stdint.h>

void main(){
//PORTB &=~ (1<<0); //Mostly Used

PORTB ^= (1<<0); //Modified


}
00000080 <main>:
  80:   cf 93           push    r28
  82:   df 93           push    r29
  84:   cd b7           in  r28, 0x3d   ; 61
  86:   de b7           in  r29, 0x3e   ; 62
  88:   85 e2           ldi r24, 0x25   ; 37
  8a:   90 e0           ldi r25, 0x00   ; 0
  8c:   fc 01           movw    r30, r24
  8e:   30 81           ld  r19, Z
  90:   85 e2           ldi r24, 0x25   ; 37
  92:   90 e0           ldi r25, 0x00   ; 0
  94:   21 e0           ldi r18, 0x01   ; 1
  96:   23 27           eor r18, r19
  98:   fc 01           movw    r30, r24
  9a:   20 83           st  Z, r18
  9c:   00 00           nop
  9e:   df 91           pop r29
  a0:   cf 91           pop r28
  a2:   08 95           ret

-------------------------
#include <avr/io.h>
#include <stdlib.h>
#include <stdint.h>

void main(){
PORTB &=~ (1<<0); //Mostly Used

//PORTB ^= (1<<0); //Modified


}
00000080 <main>:
  80:   cf 93           push    r28
  82:   df 93           push    r29
  84:   cd b7           in  r28, 0x3d   ; 61
  86:   de b7           in  r29, 0x3e   ; 62
  88:   85 e2           ldi r24, 0x25   ; 37
  8a:   90 e0           ldi r25, 0x00   ; 0
  8c:   fc 01           movw    r30, r24
  8e:   20 81           ld  r18, Z
  90:   85 e2           ldi r24, 0x25   ; 37
  92:   90 e0           ldi r25, 0x00   ; 0
  94:   2e 7f           andi    r18, 0xFE   ; 254
  96:   fc 01           movw    r30, r24
  98:   20 83           st  Z, r18
  9a:   00 00           nop
  9c:   df 91           pop r29
  9e:   cf 91           pop r28
  a0:   08 95           ret