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void entprell(void)
{
status = ((status<<1) | (!bit_is_clear(PIND,PIND0)) | 0xe000);
  5c:	80 91 63 00 	lds	r24, 0x0063
  60:	90 91 64 00 	lds	r25, 0x0064
  64:	88 0f       	add	r24, r24
  66:	99 1f       	adc	r25, r25
  68:	20 b3       	in	r18, 0x10	; 16
  6a:	33 27       	eor	r19, r19
  6c:	21 70       	andi	r18, 0x01	; 1
  6e:	30 70       	andi	r19, 0x00	; 0
  70:	82 2b       	or	r24, r18
  72:	93 2b       	or	r25, r19
  74:	90 6e       	ori	r25, 0xE0	; 224
  76:	90 93 64 00 	sts	0x0064, r25
  7a:	80 93 63 00 	sts	0x0063, r24
if (status==0xf000)  taste0=0;
  7e:	80 50       	subi	r24, 0x00	; 0
  80:	90 4f       	sbci	r25, 0xF0	; 240
  82:	19 f4       	brne	.+6      	; 0x8a
  84:	10 92 62 00 	sts	0x0062, r1
else taste0=1;
}
  88:	08 95       	ret
  8a:	81 e0       	ldi	r24, 0x01	; 1
  8c:	80 93 62 00 	sts	0x0062, r24
  90:	08 95       	ret
  92:	08 95       	ret
----------------------------------------------------------------------------
0000009e <debounce_8keys>:
{
  static char ct0, ct1;
  char i;

  i = key_state ^ ~KEY_INPUT;		// key changed ?
  9e:	23 b3       	in	r18, 0x13	; 19
  a0:	20 95       	com	r18
  a2:	30 91 66 00 	lds	r19, 0x0066
  a6:	23 27       	eor	r18, r19
  ct0 = ~( ct0 & i );			// reset or count ct0
  a8:	90 91 60 00 	lds	r25, 0x0060
  ac:	92 23       	and	r25, r18
  ae:	90 95       	com	r25
  b0:	90 93 60 00 	sts	0x0060, r25
  ct1 = ct0 ^ ct1 & i;			// reset or count ct1
  b4:	80 91 61 00 	lds	r24, 0x0061
  b8:	82 23       	and	r24, r18
  ba:	89 27       	eor	r24, r25
  bc:	80 93 61 00 	sts	0x0061, r24
  i &= ct0 & ct1;			// count until roll over ?
  c0:	98 23       	and	r25, r24
  c2:	29 23       	and	r18, r25
  key_state ^= i;			// then toggle debounced state
  c4:	32 27       	eor	r19, r18
  c6:	30 93 66 00 	sts	0x0066, r19
//  key_press |= key_state & i;		// 0->1: key press detect
}
  ca:	08 95       	ret
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