[exp1.asm,34] 007: Undefined constant, variable, label or device (DDRB)!
Error ==> out DDRD, r18 ;PORTD as input
[exp1.asm,36] 007: Undefined constant, variable, label or device (DDRD)!
Error ==> out PORTB, r18 ;both LEDs are in off state
[exp1.asm,37] 007: Undefined constant, variable, label or device (PORTB)!
Error ==> ldi r16, (1<<PB6) ;LED1 glows
[exp1.asm,47] 007: Undefined constant, variable, label or device (PB6)!
Error ==> ldi r16, (1<<PB6) ;LED1 glows
[exp1.asm,47] 025: Expression of constant ((1<<PB6)) unreadable!
Error ==> out PORTB, r16
[exp1.asm,48] 007: Undefined constant, variable, label or device (PORTB)!
Error ==> last: ldi r16, (1<<INTF0)
[exp1.asm,50] 007: Undefined constant, variable, label or device (INTF0)!
Error ==> last: ldi r16, (1<<INTF0)
[exp1.asm,50] 025: Expression of constant ((1<<INTF0)) unreadable!
Error ==> out EIFR, r16
[exp1.asm,51] 007: Undefined constant, variable, label or device (EIFR)!
Error ==> ldi r16, (1<<PB7) ;LED2 glows
[exp1.asm,58] 007: Undefined constant, variable, label or device (PB7)!
Error ==> ldi r16, (1<<PB7) ;LED2 glows
[exp1.asm,58] 025: Expression of constant ((1<<PB7)) unreadable!
Error ==> out PORTB, r16
[exp1.asm,59] 007: Undefined constant, variable, label or device (PORTB)!
Error ==> last1: ldi r16, (1<<INTF1)
[exp1.asm,62] 007: Undefined constant, variable, label or device (INTF1)!
Error ==> last1: ldi r16, (1<<INTF1)
[exp1.asm,62] 025: Expression of constant ((1<<INTF1)) unreadable!
Error ==> out EIFR, r16
[exp1.asm,63] 007: Undefined constant, variable, label or device (EIFR)!
64 lines done.
Compilation aborted, 24 errors!