From 6655d011025b8ab2d17e047b6d25f61e1cab8c30 Mon Sep 17 00:00:00 2001
From: S170H <64917343+S170H@users.noreply.github.com>
Date: Sat, 20 Jan 2024 22:27:43 +0100
Subject: [PATCH] P5 initial

---
 Abgaben/Hazinedar_3108590_ARBKVS_4.zip | Bin 0 -> 2319 bytes
 Abgaben/P4/keys.c                      |  34 ++
 Abgaben/P4/keys.h                      |  12 +
 Abgaben/P4/main.c                      |  12 +
 Abgaben/P4/sevenseg.c                  |  71 +++
 Abgaben/P4/sevenseg.h                  |  12 +
 P4/.vs/P4/v14/.atsuo                   | Bin 36864 -> 48640 bytes
 P4/P4/Debug/P4.elf                     | Bin 11680 -> 12196 bytes
 P4/P4/Debug/P4.hex                     |  83 +--
 P4/P4/Debug/P4.lss                     | 675 +++++++++++++++----------
 P4/P4/Debug/P4.map                     | 140 ++---
 P4/P4/Debug/P4.srec                    |  83 +--
 P4/P4/Debug/keys.o                     | Bin 2852 -> 3800 bytes
 P4/P4/Debug/main.o                     | Bin 4560 -> 2924 bytes
 P4/P4/Debug/sevenseg.d                 |   3 +
 P4/P4/Debug/sevenseg.o                 | Bin 5224 -> 8092 bytes
 P4/P4/keys.c                           |  48 +-
 P4/P4/keys.h                           |   2 +
 P4/P4/main.c                           |  17 +-
 P4/P4/sevenseg.c                       |  46 +-
 P4/P4/sevenseg.h                       |   5 +-
 P5/.vscode/c_cpp_properties.json       |  18 +
 P5/.vscode/launch.json                 |  15 +
 P5/.vscode/settings.json               | 115 +++++
 P5/Main.cpp                            | 142 ++++++
 P5/Semaphore.h                         |  52 ++
 26 files changed, 1132 insertions(+), 453 deletions(-)
 create mode 100644 Abgaben/Hazinedar_3108590_ARBKVS_4.zip
 create mode 100644 Abgaben/P4/keys.c
 create mode 100644 Abgaben/P4/keys.h
 create mode 100644 Abgaben/P4/main.c
 create mode 100644 Abgaben/P4/sevenseg.c
 create mode 100644 Abgaben/P4/sevenseg.h
 create mode 100644 P5/.vscode/c_cpp_properties.json
 create mode 100644 P5/.vscode/launch.json
 create mode 100644 P5/.vscode/settings.json
 create mode 100644 P5/Main.cpp
 create mode 100644 P5/Semaphore.h

diff --git a/Abgaben/Hazinedar_3108590_ARBKVS_4.zip b/Abgaben/Hazinedar_3108590_ARBKVS_4.zip
new file mode 100644
index 0000000000000000000000000000000000000000..2df609fec2eff5ab9cb17c4cf74687f36af21333
GIT binary patch
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diff --git a/Abgaben/P4/keys.c b/Abgaben/P4/keys.c
new file mode 100644
index 0000000..15df574
--- /dev/null
+++ b/Abgaben/P4/keys.c
@@ -0,0 +1,34 @@
+#include "keys.h"
+
+void setupTimer0() {
+	// Configure Timer0 for CTC mode
+	TCCR0A |= (1 << WGM01);                 // Set Waveform Generation Mode bits for CTC
+	TCCR0B |= (1 << CS01) | (1 << CS00);    // Set prescaler to 64
+	OCR0A = 249;                            // Set Output Compare Register to 249 for ~1ms interrupt
+	TIMSK0 |= (1 << OCIE0A);                // Enable Timer0 Output Compare A Match interrupt
+}
+
+void setupRegisters(){
+		DDRD = 0xff;										// Data direction register D (D0 -> D6) as output
+		// PORTD = 0xff;									// setting bit for 7-segment show 0
+		// => spielt keine Rolle, wird von der while Schleife �bernommen
+		
+		DDRB = 0x01;										// Data direction register B (B0) as output and DDRB (B1, B2) as input
+		PORTB |= (1 << PINB1) | (1 << PINB2) ;				// setting bit for teens B0=0 and SW1-2
+		// PINB=0 => start with LED3 (Einer)
+		
+		// mit unserem Atmega nicht m�glich, da keine PCINT8_vect und PCINT9_vect vorhanden
+		// DDRC = 0x00;										// Data direction register C as input for SW1 and SW2
+		// PORTC |= (1<<PINC0) | (1<<PINC1);					// settings pins for SW1 -> PINC0 and SW2 -> PINC1
+		
+		cli();												// clear global interrupt flag: interrupts will be immediately disabled
+		PCICR |= 0x01;										// Pin Change Interrupt Control Register: turn on PortB
+		PCMSK0 |= (1 << PINB1) | (1 << PINB2);				// trigger interrupt when SW1 or SW2 is pressed
+		sei();												// set global interrupt enable
+
+}
+
+void init(){
+	setupTimer0();
+	setupRegisters();
+}
\ No newline at end of file
diff --git a/Abgaben/P4/keys.h b/Abgaben/P4/keys.h
new file mode 100644
index 0000000..89122b7
--- /dev/null
+++ b/Abgaben/P4/keys.h
@@ -0,0 +1,12 @@
+#ifndef KEYS_H_
+#define KEYS_H_
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+void setupTimer0();
+void setupRegisters();
+void init();
+
+
+#endif /* KEYS_H_ */
\ No newline at end of file
diff --git a/Abgaben/P4/main.c b/Abgaben/P4/main.c
new file mode 100644
index 0000000..e150c74
--- /dev/null
+++ b/Abgaben/P4/main.c
@@ -0,0 +1,12 @@
+#include "keys.h"
+#include "sevenseg.h"
+
+int main(void) {
+	init();
+	
+	while(1) {
+		display();
+	}
+}
+
+
diff --git a/Abgaben/P4/sevenseg.c b/Abgaben/P4/sevenseg.c
new file mode 100644
index 0000000..1728c2f
--- /dev/null
+++ b/Abgaben/P4/sevenseg.c
@@ -0,0 +1,71 @@
+#include "sevenseg.h"
+
+//-Timer---------------------------------------
+
+volatile uint32_t systemClock = 0;
+
+ISR(TIMER0_COMPA_vect) {
+	systemClock++;  
+}
+
+uint32_t getSystemClock(){
+	return systemClock;
+}
+
+void waitFor(uint32_t ms) {
+	uint32_t endTime = getSystemClock() + ms;
+	while (getSystemClock() != endTime);
+}
+
+//-Counter-------------------------------------
+
+volatile int count = 0;
+
+ISR(PCINT0_vect) {											// every 10ms interrupt is triggered
+	
+	if (!(PINB & (1<<PINB1))) {								// count down => sw1 is pressed
+		if (count == 0) count = 100;						// 100 - 1 = 99
+		count--;
+	}
+	
+	if (!(PINB & (1<<PINB2))) {								// count up => sw2 is pressed
+		if (count == 99) count = -1;						// -1 + 1 = 0
+		count++;
+	}
+}
+
+//-Display--------------------------------------
+
+void display() {
+	/*
+	logical 0: on
+	logical 1: off
+
+		.gfe dcba	HEX	int
+	0 : 1100 0000 = C0	192
+	1 : 1111 1001 = F9	249
+	2 : 1010 0100 = A4	164
+	3 :	1011 0000 = 30	48
+	4 : 1001 1001 = 99	153
+	5 : 1001 0010 = 92	146
+	6 : 1000 0010 = 82	130
+	7 : 1111 1000 = F8	248
+	8 : 1000 0000 = 80	128
+	9 : 1001 0000 = 90	144
+	*/
+
+	int numbersAsSegments[10] = { 192, 249, 164, 48, 153, 146, 130, 248, 128, 144 };		// display number from 0 to 9;
+	
+	volatile int led_Einer = numbersAsSegments[(int) count % 10];							// Segmentanzeige für Zehner
+	volatile int led_Zehner =  numbersAsSegments[(int) (count - (count % 10)) / 10];		// Segmentanzeige für Einer
+	
+	PORTD = led_Einer;
+	//_delay_ms(10);
+	waitFor(10);
+	PORTB ^= (1 << PINB0);
+	
+	PORTD = led_Zehner;
+	//_delay_ms(10);
+	waitFor(10);
+	PORTB ^= (1 << PINB0);
+}
diff --git a/Abgaben/P4/sevenseg.h b/Abgaben/P4/sevenseg.h
new file mode 100644
index 0000000..4645d8c
--- /dev/null
+++ b/Abgaben/P4/sevenseg.h
@@ -0,0 +1,12 @@
+#ifndef SEVENSEG_H_
+#define SEVENSEG_H_
+#define F_CPU 16000000UL    // 16MHz clock frequency
+#include <util/delay.h>
+#include <avr/interrupt.h>
+#include "avr/io.h"
+
+uint32_t getSystemClock();
+void waitFor(uint32_t ms);
+void display();
+
+#endif /* SEVENSEG_H_ */
\ No newline at end of file
diff --git a/P4/.vs/P4/v14/.atsuo b/P4/.vs/P4/v14/.atsuo
index 252e4204bdfb19e12626d4675bc4c988706b82d6..115598750929adc9059da88d3367361b7cb19768 100644
GIT binary patch
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diff --git a/P4/P4/Debug/P4.elf b/P4/P4/Debug/P4.elf
index a54ca9210a1f6ee6890e42298f4fb81ee5efe0df..199d3d3a657b11e9ad66648a9a9e6b6fe5508d0a 100644
GIT binary patch
delta 4188
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diff --git a/P4/P4/Debug/P4.hex b/P4/P4/Debug/P4.hex
index ba2966d..970d2a8 100644
--- a/P4/P4/Debug/P4.hex
+++ b/P4/P4/Debug/P4.hex
@@ -1,43 +1,54 @@
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 :100040000C9451000C9451000C9451000C945100EC
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 :1000800005900D92A431B107D9F721E0A4E1B1E0C8
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+:100140000FBE0F901F9018950F931F9300911601EB
+:10015000109117012091180130911901AB01BC01D8
+:10016000400F511F621F731F80911601909117015C
+:10017000A0911801B091190184179507A607B70738
+:1001800099F71F910F9108951F920F920FB60F923A
+:1001900011248F939F93199915C080911401909108
+:1001A0001501892B31F484E690E09093150180933A
+:1001B00014018091140190911501019790931501FC
+:1001C000809314011A9916C0809114019091150121
+:1001D0008336910531F48FEF9FEF90931501809353
+:1001E00014018091140190911501019690931501CD
+:1001F000809314019F918F910F900FBE0F901F90CD
+:1002000018951F93CF93DF93CDB7DEB768970FB6DE
+:10021000F894DEBF0FBECDBF84E1E0E0F1E0DE0187
+:10022000119601900D928A95E1F7809114019091B9
+:1002300015012AE030E0B9010E946D01FC01EE0FCA
+:10024000FF1F41E050E04C0F5D1FE40FF51F808160
+:1002500091819E8B8D8BE0911401F091150180911D
+:10026000140190911501B9010E946D01AF01481B65
+:10027000590BCA01B9010E946D01FB01EE0FFF1F6E
+:1002800081E090E08C0F9D1FE80FF91F8081918124
+:10029000988F8F8B8D899E898BB96AE070E080E0A2
+:1002A00090E00E94A40085B111E0812785B98F8973
+:1002B000988D8BB96AE070E080E090E00E94A40025
+:1002C00085B1182715B968960FB6F894DEBF0FBE32
+:1002D000CDBFDF91CF911F91089597FB072E16F4A4
+:1002E000009407D077FD09D00E94810107FC05D05A
+:1002F0003EF4909581959F4F0895709561957F4F3D
+:100300000895AA1BBB1B51E107C0AA1FBB1FA6175C
+:10031000B70710F0A61BB70B881F991F5A95A9F7AE
+:0E03200080959095BC01CD010895F894FFCF13
+:10032E00C000F900A4003000990092008200F8008D
+:04033E0080009000AB
 :00000001FF
diff --git a/P4/P4/Debug/P4.lss b/P4/P4/Debug/P4.lss
index 6f9f17c..f13a340 100644
--- a/P4/P4/Debug/P4.lss
+++ b/P4/P4/Debug/P4.lss
@@ -3,31 +3,31 @@ P4.elf:     file format elf32-avr
 
 Sections:
 Idx Name          Size      VMA       LMA       File off  Algn
-  0 .data         00000014  00800100  00000272  00000306  2**0
+  0 .data         00000014  00800100  0000032e  000003c2  2**0
                   CONTENTS, ALLOC, LOAD, DATA
-  1 .text         00000272  00000000  00000000  00000094  2**1
+  1 .text         0000032e  00000000  00000000  00000094  2**1
                   CONTENTS, ALLOC, LOAD, READONLY, CODE
-  2 .bss          00000002  00800114  00800114  0000031a  2**0
+  2 .bss          00000006  00800114  00800114  000003d6  2**0
                   ALLOC
-  3 .comment      00000030  00000000  00000000  0000031a  2**0
+  3 .comment      00000030  00000000  00000000  000003d6  2**0
                   CONTENTS, READONLY
-  4 .note.gnu.avr.deviceinfo 00000040  00000000  00000000  0000034c  2**2
+  4 .note.gnu.avr.deviceinfo 00000040  00000000  00000000  00000408  2**2
                   CONTENTS, READONLY
-  5 .debug_aranges 00000068  00000000  00000000  0000038c  2**0
+  5 .debug_aranges 00000090  00000000  00000000  00000448  2**0
                   CONTENTS, READONLY, DEBUGGING
-  6 .debug_info   000008f2  00000000  00000000  000003f4  2**0
+  6 .debug_info   0000094d  00000000  00000000  000004d8  2**0
                   CONTENTS, READONLY, DEBUGGING
-  7 .debug_abbrev 00000797  00000000  00000000  00000ce6  2**0
+  7 .debug_abbrev 00000799  00000000  00000000  00000e25  2**0
                   CONTENTS, READONLY, DEBUGGING
-  8 .debug_line   00000448  00000000  00000000  0000147d  2**0
+  8 .debug_line   00000432  00000000  00000000  000015be  2**0
                   CONTENTS, READONLY, DEBUGGING
-  9 .debug_frame  000000ac  00000000  00000000  000018c8  2**2
+  9 .debug_frame  00000124  00000000  00000000  000019f0  2**2
                   CONTENTS, READONLY, DEBUGGING
- 10 .debug_str    0000041d  00000000  00000000  00001974  2**0
+ 10 .debug_str    0000042d  00000000  00000000  00001b14  2**0
                   CONTENTS, READONLY, DEBUGGING
- 11 .debug_loc    00000170  00000000  00000000  00001d91  2**0
+ 11 .debug_loc    0000012f  00000000  00000000  00001f41  2**0
                   CONTENTS, READONLY, DEBUGGING
- 12 .debug_ranges 00000038  00000000  00000000  00001f01  2**0
+ 12 .debug_ranges 00000060  00000000  00000000  00002070  2**0
                   CONTENTS, READONLY, DEBUGGING
 
 Disassembly of section .text:
@@ -36,7 +36,7 @@ Disassembly of section .text:
    0:	0c 94 34 00 	jmp	0x68	; 0x68 <__ctors_end>
    4:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
    8:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
-   c:	0c 94 67 00 	jmp	0xce	; 0xce <__vector_3>
+   c:	0c 94 c4 00 	jmp	0x188	; 0x188 <__vector_3>
   10:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   14:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   18:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
@@ -47,7 +47,7 @@ Disassembly of section .text:
   2c:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   30:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   34:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
-  38:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
+  38:	0c 94 7f 00 	jmp	0xfe	; 0xfe <__vector_14>
   3c:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   40:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
   44:	0c 94 51 00 	jmp	0xa2	; 0xa2 <__bad_interrupt>
@@ -72,8 +72,8 @@ Disassembly of section .text:
   74:	11 e0       	ldi	r17, 0x01	; 1
   76:	a0 e0       	ldi	r26, 0x00	; 0
   78:	b1 e0       	ldi	r27, 0x01	; 1
-  7a:	e2 e7       	ldi	r30, 0x72	; 114
-  7c:	f2 e0       	ldi	r31, 0x02	; 2
+  7a:	ee e2       	ldi	r30, 0x2E	; 46
+  7c:	f3 e0       	ldi	r31, 0x03	; 3
   7e:	02 c0       	rjmp	.+4      	; 0x84 <__do_copy_data+0x10>
   80:	05 90       	lpm	r0, Z+
   82:	0d 92       	st	X+, r0
@@ -91,315 +91,432 @@ Disassembly of section .text:
   92:	1d 92       	st	X+, r1
 
 00000094 <.do_clear_bss_start>:
-  94:	a6 31       	cpi	r26, 0x16	; 22
+  94:	aa 31       	cpi	r26, 0x1A	; 26
   96:	b2 07       	cpc	r27, r18
   98:	e1 f7       	brne	.-8      	; 0x92 <.do_clear_bss_loop>
-  9a:	0e 94 a5 00 	call	0x14a	; 0x14a <main>
-  9e:	0c 94 37 01 	jmp	0x26e	; 0x26e <_exit>
+  9a:	0e 94 7a 00 	call	0xf4	; 0xf4 <main>
+  9e:	0c 94 95 01 	jmp	0x32a	; 0x32a <_exit>
 
 000000a2 <__bad_interrupt>:
   a2:	0c 94 00 00 	jmp	0	; 0x0 <__vectors>
 
-000000a6 <init>:
+000000a6 <setupTimer0>:
 #include "keys.h"
 
-
-void init(){
-	DDRD = 0xff;										// Data direction register D (D0 -> D6) as output
-  a6:	8f ef       	ldi	r24, 0xFF	; 255
-  a8:	8a b9       	out	0x0a, r24	; 10
-	// PORTD = 0xff;									// setting bit for 7-segment show 0
-	// => spielt keine Rolle, wird von der while Schleife übernommen
-	
-	DDRB = 0x01;										// Data direction register B (B0) as output and DDRB (B1, B2) as input
-  aa:	81 e0       	ldi	r24, 0x01	; 1
-  ac:	84 b9       	out	0x04, r24	; 4
-	PORTB |= (1 << PINB1) | (1 << PINB2) ;				// setting bit for teens and SW1-2
-  ae:	85 b1       	in	r24, 0x05	; 5
-  b0:	86 60       	ori	r24, 0x06	; 6
-  b2:	85 b9       	out	0x05, r24	; 5
-	
-	// mit unserem Atmega nicht möglich, da keine PCINT8_vect und PCINT9_vect vorhanden
-	// DDRC = 0x00;										// Data direction register C as input for SW1 and SW2
-	// PORTC |= (1<<PINC0) | (1<<PINC1);					// settings pins for SW1 -> PINC0 and SW2 -> PINC1
-	
-	cli();												// clear global interrupt flag: interrupts will be immediately disabled
-  b4:	f8 94       	cli
-	PCICR |= 0x01;										// Pin Change Interrupt Control Register: turn on PortB
-  b6:	e8 e6       	ldi	r30, 0x68	; 104
+void setupTimer0() {
+	// Configure Timer0 for CTC mode
+	TCCR0A |= (1 << WGM01);                 // Set Waveform Generation Mode bits for CTC
+  a6:	84 b5       	in	r24, 0x24	; 36
+  a8:	82 60       	ori	r24, 0x02	; 2
+  aa:	84 bd       	out	0x24, r24	; 36
+	TCCR0B |= (1 << CS01) | (1 << CS00);    // Set prescaler to 64
+  ac:	85 b5       	in	r24, 0x25	; 37
+  ae:	83 60       	ori	r24, 0x03	; 3
+  b0:	85 bd       	out	0x25, r24	; 37
+	OCR0A = 249;                            // Set Output Compare Register to 249 for ~1ms interrupt
+  b2:	89 ef       	ldi	r24, 0xF9	; 249
+  b4:	87 bd       	out	0x27, r24	; 39
+	TIMSK0 |= (1 << OCIE0A);                // Enable Timer0 Output Compare A Match interrupt
+  b6:	ee e6       	ldi	r30, 0x6E	; 110
   b8:	f0 e0       	ldi	r31, 0x00	; 0
   ba:	80 81       	ld	r24, Z
-  bc:	81 60       	ori	r24, 0x01	; 1
+  bc:	82 60       	ori	r24, 0x02	; 2
   be:	80 83       	st	Z, r24
-	PCMSK0 |= (1 << PINB1) | (1 << PINB2);				// trigger interrupt when SW1 or SW2 is pressed 
-  c0:	eb e6       	ldi	r30, 0x6B	; 107
-  c2:	f0 e0       	ldi	r31, 0x00	; 0
-  c4:	80 81       	ld	r24, Z
-  c6:	86 60       	ori	r24, 0x06	; 6
-  c8:	80 83       	st	Z, r24
-	sei();												// set global interrupt enable
-  ca:	78 94       	sei
-  cc:	08 95       	ret
+  c0:	08 95       	ret
 
-000000ce <__vector_3>:
+000000c2 <setupRegisters>:
+}
+
+void setupRegisters(){
+		DDRD = 0xff;										// Data direction register D (D0 -> D6) as output
+  c2:	8f ef       	ldi	r24, 0xFF	; 255
+  c4:	8a b9       	out	0x0a, r24	; 10
+		// PORTD = 0xff;									// setting bit for 7-segment show 0
+		// => spielt keine Rolle, wird von der while Schleife �bernommen
+		
+		DDRB = 0x01;										// Data direction register B (B0) as output and DDRB (B1, B2) as input
+  c6:	81 e0       	ldi	r24, 0x01	; 1
+  c8:	84 b9       	out	0x04, r24	; 4
+		PORTB |= (1 << PINB1) | (1 << PINB2) ;				// setting bit for teens B0=0 and SW1-2
+  ca:	85 b1       	in	r24, 0x05	; 5
+  cc:	86 60       	ori	r24, 0x06	; 6
+  ce:	85 b9       	out	0x05, r24	; 5
+		
+		// mit unserem Atmega nicht m�glich, da keine PCINT8_vect und PCINT9_vect vorhanden
+		// DDRC = 0x00;										// Data direction register C as input for SW1 and SW2
+		// PORTC |= (1<<PINC0) | (1<<PINC1);					// settings pins for SW1 -> PINC0 and SW2 -> PINC1
+		
+		cli();												// clear global interrupt flag: interrupts will be immediately disabled
+  d0:	f8 94       	cli
+		PCICR |= 0x01;										// Pin Change Interrupt Control Register: turn on PortB
+  d2:	e8 e6       	ldi	r30, 0x68	; 104
+  d4:	f0 e0       	ldi	r31, 0x00	; 0
+  d6:	80 81       	ld	r24, Z
+  d8:	81 60       	ori	r24, 0x01	; 1
+  da:	80 83       	st	Z, r24
+		PCMSK0 |= (1 << PINB1) | (1 << PINB2);				// trigger interrupt when SW1 or SW2 is pressed
+  dc:	eb e6       	ldi	r30, 0x6B	; 107
+  de:	f0 e0       	ldi	r31, 0x00	; 0
+  e0:	80 81       	ld	r24, Z
+  e2:	86 60       	ori	r24, 0x06	; 6
+  e4:	80 83       	st	Z, r24
+		sei();												// set global interrupt enable
+  e6:	78 94       	sei
+  e8:	08 95       	ret
+
+000000ea <init>:
+
+}
+
+void init(){
+	setupTimer0();
+  ea:	0e 94 53 00 	call	0xa6	; 0xa6 <setupTimer0>
+	setupRegisters();
+  ee:	0e 94 61 00 	call	0xc2	; 0xc2 <setupRegisters>
+  f2:	08 95       	ret
+
+000000f4 <main>:
 #include "keys.h"
 #include "sevenseg.h"
 
+int main(void) {
+	init();
+  f4:	0e 94 75 00 	call	0xea	; 0xea <init>
+	
+	while(1) {
+		display();
+  f8:	0e 94 01 01 	call	0x202	; 0x202 <display>
+  fc:	fd cf       	rjmp	.-6      	; 0xf8 <main+0x4>
+
+000000fe <__vector_14>:
+	systemClock++;  
+}
+
+uint32_t getSystemClock(){
+	return systemClock;
+}
+  fe:	1f 92       	push	r1
+ 100:	0f 92       	push	r0
+ 102:	0f b6       	in	r0, 0x3f	; 63
+ 104:	0f 92       	push	r0
+ 106:	11 24       	eor	r1, r1
+ 108:	8f 93       	push	r24
+ 10a:	9f 93       	push	r25
+ 10c:	af 93       	push	r26
+ 10e:	bf 93       	push	r27
+ 110:	80 91 16 01 	lds	r24, 0x0116	; 0x800116 <systemClock>
+ 114:	90 91 17 01 	lds	r25, 0x0117	; 0x800117 <systemClock+0x1>
+ 118:	a0 91 18 01 	lds	r26, 0x0118	; 0x800118 <systemClock+0x2>
+ 11c:	b0 91 19 01 	lds	r27, 0x0119	; 0x800119 <systemClock+0x3>
+ 120:	01 96       	adiw	r24, 0x01	; 1
+ 122:	a1 1d       	adc	r26, r1
+ 124:	b1 1d       	adc	r27, r1
+ 126:	80 93 16 01 	sts	0x0116, r24	; 0x800116 <systemClock>
+ 12a:	90 93 17 01 	sts	0x0117, r25	; 0x800117 <systemClock+0x1>
+ 12e:	a0 93 18 01 	sts	0x0118, r26	; 0x800118 <systemClock+0x2>
+ 132:	b0 93 19 01 	sts	0x0119, r27	; 0x800119 <systemClock+0x3>
+ 136:	bf 91       	pop	r27
+ 138:	af 91       	pop	r26
+ 13a:	9f 91       	pop	r25
+ 13c:	8f 91       	pop	r24
+ 13e:	0f 90       	pop	r0
+ 140:	0f be       	out	0x3f, r0	; 63
+ 142:	0f 90       	pop	r0
+ 144:	1f 90       	pop	r1
+ 146:	18 95       	reti
+
+00000148 <waitFor>:
+
+void waitFor(uint32_t ms) {
+ 148:	0f 93       	push	r16
+ 14a:	1f 93       	push	r17
+ISR(TIMER0_COMPA_vect) {
+	systemClock++;  
+}
+
+uint32_t getSystemClock(){
+	return systemClock;
+ 14c:	00 91 16 01 	lds	r16, 0x0116	; 0x800116 <systemClock>
+ 150:	10 91 17 01 	lds	r17, 0x0117	; 0x800117 <systemClock+0x1>
+ 154:	20 91 18 01 	lds	r18, 0x0118	; 0x800118 <systemClock+0x2>
+ 158:	30 91 19 01 	lds	r19, 0x0119	; 0x800119 <systemClock+0x3>
+}
+
+void waitFor(uint32_t ms) {
+	uint32_t endTime = getSystemClock() + ms;
+ 15c:	ab 01       	movw	r20, r22
+ 15e:	bc 01       	movw	r22, r24
+ 160:	40 0f       	add	r20, r16
+ 162:	51 1f       	adc	r21, r17
+ 164:	62 1f       	adc	r22, r18
+ 166:	73 1f       	adc	r23, r19
+ISR(TIMER0_COMPA_vect) {
+	systemClock++;  
+}
+
+uint32_t getSystemClock(){
+	return systemClock;
+ 168:	80 91 16 01 	lds	r24, 0x0116	; 0x800116 <systemClock>
+ 16c:	90 91 17 01 	lds	r25, 0x0117	; 0x800117 <systemClock+0x1>
+ 170:	a0 91 18 01 	lds	r26, 0x0118	; 0x800118 <systemClock+0x2>
+ 174:	b0 91 19 01 	lds	r27, 0x0119	; 0x800119 <systemClock+0x3>
+}
+
+void waitFor(uint32_t ms) {
+	uint32_t endTime = getSystemClock() + ms;
+	while (getSystemClock() != endTime);
+ 178:	84 17       	cp	r24, r20
+ 17a:	95 07       	cpc	r25, r21
+ 17c:	a6 07       	cpc	r26, r22
+ 17e:	b7 07       	cpc	r27, r23
+ 180:	99 f7       	brne	.-26     	; 0x168 <waitFor+0x20>
+}
+ 182:	1f 91       	pop	r17
+ 184:	0f 91       	pop	r16
+ 186:	08 95       	ret
+
+00000188 <__vector_3>:
+
+//-Counter-------------------------------------
+
 volatile int count = 0;
 
 ISR(PCINT0_vect) {											// every 10ms interrupt is triggered
-  ce:	1f 92       	push	r1
-  d0:	0f 92       	push	r0
-  d2:	0f b6       	in	r0, 0x3f	; 63
-  d4:	0f 92       	push	r0
-  d6:	11 24       	eor	r1, r1
-  d8:	8f 93       	push	r24
-  da:	9f 93       	push	r25
-	if (!(PINB & (1<<PINB1))) {								// sw1 is pressed
-  dc:	19 99       	sbic	0x03, 1	; 3
-  de:	16 c0       	rjmp	.+44     	; 0x10c <__vector_3+0x3e>
-		if (count == 0) {									
-  e0:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
-  e4:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
-  e8:	89 2b       	or	r24, r25
-  ea:	31 f4       	brne	.+12     	; 0xf8 <__vector_3+0x2a>
-			count = 100;									// 100 - 1 = 99
-  ec:	84 e6       	ldi	r24, 0x64	; 100
-  ee:	90 e0       	ldi	r25, 0x00	; 0
-  f0:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
-  f4:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
-		}
+ 188:	1f 92       	push	r1
+ 18a:	0f 92       	push	r0
+ 18c:	0f b6       	in	r0, 0x3f	; 63
+ 18e:	0f 92       	push	r0
+ 190:	11 24       	eor	r1, r1
+ 192:	8f 93       	push	r24
+ 194:	9f 93       	push	r25
+	
+	if (!(PINB & (1<<PINB1))) {								// count down => sw1 is pressed
+ 196:	19 99       	sbic	0x03, 1	; 3
+ 198:	15 c0       	rjmp	.+42     	; 0x1c4 <__vector_3+0x3c>
+		if (count == 0) count = 100;						// 100 - 1 = 99
+ 19a:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 19e:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 1a2:	89 2b       	or	r24, r25
+ 1a4:	31 f4       	brne	.+12     	; 0x1b2 <__vector_3+0x2a>
+ 1a6:	84 e6       	ldi	r24, 0x64	; 100
+ 1a8:	90 e0       	ldi	r25, 0x00	; 0
+ 1aa:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
+ 1ae:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
 		count--;
-  f8:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
-  fc:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
- 100:	01 97       	sbiw	r24, 0x01	; 1
- 102:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
- 106:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
- 10a:	18 c0       	rjmp	.+48     	; 0x13c <__vector_3+0x6e>
+ 1b2:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 1b6:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 1ba:	01 97       	sbiw	r24, 0x01	; 1
+ 1bc:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
+ 1c0:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
 	}
-	else if (!(PINB & (1<<PINB2))) {						// sw2 is pressed
- 10c:	1a 99       	sbic	0x03, 2	; 3
- 10e:	16 c0       	rjmp	.+44     	; 0x13c <__vector_3+0x6e>
-		if (count == 99) {
- 110:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
- 114:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
- 118:	83 36       	cpi	r24, 0x63	; 99
- 11a:	91 05       	cpc	r25, r1
- 11c:	31 f4       	brne	.+12     	; 0x12a <__vector_3+0x5c>
-			count = -1;										// -1 + 1 = 0
- 11e:	8f ef       	ldi	r24, 0xFF	; 255
- 120:	9f ef       	ldi	r25, 0xFF	; 255
- 122:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
- 126:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
-		}
+	
+	if (!(PINB & (1<<PINB2))) {								// count up => sw2 is pressed
+ 1c4:	1a 99       	sbic	0x03, 2	; 3
+ 1c6:	16 c0       	rjmp	.+44     	; 0x1f4 <__vector_3+0x6c>
+		if (count == 99) count = -1;						// -1 + 1 = 0
+ 1c8:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 1cc:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 1d0:	83 36       	cpi	r24, 0x63	; 99
+ 1d2:	91 05       	cpc	r25, r1
+ 1d4:	31 f4       	brne	.+12     	; 0x1e2 <__vector_3+0x5a>
+ 1d6:	8f ef       	ldi	r24, 0xFF	; 255
+ 1d8:	9f ef       	ldi	r25, 0xFF	; 255
+ 1da:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
+ 1de:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
 		count++;
- 12a:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
- 12e:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
- 132:	01 96       	adiw	r24, 0x01	; 1
- 134:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
- 138:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
+ 1e2:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 1e6:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 1ea:	01 96       	adiw	r24, 0x01	; 1
+ 1ec:	90 93 15 01 	sts	0x0115, r25	; 0x800115 <__data_end+0x1>
+ 1f0:	80 93 14 01 	sts	0x0114, r24	; 0x800114 <__data_end>
 	}
 }
- 13c:	9f 91       	pop	r25
- 13e:	8f 91       	pop	r24
- 140:	0f 90       	pop	r0
- 142:	0f be       	out	0x3f, r0	; 63
- 144:	0f 90       	pop	r0
- 146:	1f 90       	pop	r1
- 148:	18 95       	reti
+ 1f4:	9f 91       	pop	r25
+ 1f6:	8f 91       	pop	r24
+ 1f8:	0f 90       	pop	r0
+ 1fa:	0f be       	out	0x3f, r0	; 63
+ 1fc:	0f 90       	pop	r0
+ 1fe:	1f 90       	pop	r1
+ 200:	18 95       	reti
 
-0000014a <main>:
+00000202 <display>:
 
-int main(void) {
-	init();
- 14a:	0e 94 53 00 	call	0xa6	; 0xa6 <init>
-	
-	while(1) {
-		display(count);
- 14e:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
- 152:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
- 156:	0e 94 ae 00 	call	0x15c	; 0x15c <display>
- 15a:	f9 cf       	rjmp	.-14     	; 0x14e <main+0x4>
+//-Display--------------------------------------
 
-0000015c <display>:
-#include "sevenseg.h"
-
-void display(int count) {
- 15c:	0f 93       	push	r16
- 15e:	1f 93       	push	r17
- 160:	cf 93       	push	r28
- 162:	df 93       	push	r29
- 164:	cd b7       	in	r28, 0x3d	; 61
- 166:	de b7       	in	r29, 0x3e	; 62
- 168:	68 97       	sbiw	r28, 0x18	; 24
- 16a:	0f b6       	in	r0, 0x3f	; 63
- 16c:	f8 94       	cli
- 16e:	de bf       	out	0x3e, r29	; 62
- 170:	0f be       	out	0x3f, r0	; 63
- 172:	cd bf       	out	0x3d, r28	; 61
- 174:	9c 01       	movw	r18, r24
+void display() {
+ 202:	1f 93       	push	r17
+ 204:	cf 93       	push	r28
+ 206:	df 93       	push	r29
+ 208:	cd b7       	in	r28, 0x3d	; 61
+ 20a:	de b7       	in	r29, 0x3e	; 62
+ 20c:	68 97       	sbiw	r28, 0x18	; 24
+ 20e:	0f b6       	in	r0, 0x3f	; 63
+ 210:	f8 94       	cli
+ 212:	de bf       	out	0x3e, r29	; 62
+ 214:	0f be       	out	0x3f, r0	; 63
+ 216:	cd bf       	out	0x3d, r28	; 61
 	7 : 1111 1000 = F8	248
 	8 : 1000 0000 = 80	128
 	9 : 1001 0000 = 90	144
 	*/
 
 	int numbersAsSegments[10] = { 192, 249, 164, 48, 153, 146, 130, 248, 128, 144 };		// display number from 0 to 9;
- 176:	84 e1       	ldi	r24, 0x14	; 20
- 178:	e0 e0       	ldi	r30, 0x00	; 0
- 17a:	f1 e0       	ldi	r31, 0x01	; 1
- 17c:	de 01       	movw	r26, r28
- 17e:	11 96       	adiw	r26, 0x01	; 1
- 180:	01 90       	ld	r0, Z+
- 182:	0d 92       	st	X+, r0
- 184:	8a 95       	dec	r24
- 186:	e1 f7       	brne	.-8      	; 0x180 <display+0x24>
+ 218:	84 e1       	ldi	r24, 0x14	; 20
+ 21a:	e0 e0       	ldi	r30, 0x00	; 0
+ 21c:	f1 e0       	ldi	r31, 0x01	; 1
+ 21e:	de 01       	movw	r26, r28
+ 220:	11 96       	adiw	r26, 0x01	; 1
+ 222:	01 90       	ld	r0, Z+
+ 224:	0d 92       	st	X+, r0
+ 226:	8a 95       	dec	r24
+ 228:	e1 f7       	brne	.-8      	; 0x222 <display+0x20>
 	
-	volatile int led_Einer = numbersAsSegments[(int) count % 10];						// Segmentanzeige für Zehner
- 188:	0a e0       	ldi	r16, 0x0A	; 10
- 18a:	10 e0       	ldi	r17, 0x00	; 0
- 18c:	c9 01       	movw	r24, r18
- 18e:	b8 01       	movw	r22, r16
- 190:	0e 94 0f 01 	call	0x21e	; 0x21e <__divmodhi4>
- 194:	fc 01       	movw	r30, r24
- 196:	ee 0f       	add	r30, r30
- 198:	ff 1f       	adc	r31, r31
- 19a:	41 e0       	ldi	r20, 0x01	; 1
- 19c:	50 e0       	ldi	r21, 0x00	; 0
- 19e:	4c 0f       	add	r20, r28
- 1a0:	5d 1f       	adc	r21, r29
- 1a2:	e4 0f       	add	r30, r20
- 1a4:	f5 1f       	adc	r31, r21
- 1a6:	40 81       	ld	r20, Z
- 1a8:	51 81       	ldd	r21, Z+1	; 0x01
- 1aa:	5e 8b       	std	Y+22, r21	; 0x16
- 1ac:	4d 8b       	std	Y+21, r20	; 0x15
+	volatile int led_Einer = numbersAsSegments[(int) count % 10];							// Segmentanzeige für Zehner
+ 22a:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 22e:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 232:	2a e0       	ldi	r18, 0x0A	; 10
+ 234:	30 e0       	ldi	r19, 0x00	; 0
+ 236:	b9 01       	movw	r22, r18
+ 238:	0e 94 6d 01 	call	0x2da	; 0x2da <__divmodhi4>
+ 23c:	fc 01       	movw	r30, r24
+ 23e:	ee 0f       	add	r30, r30
+ 240:	ff 1f       	adc	r31, r31
+ 242:	41 e0       	ldi	r20, 0x01	; 1
+ 244:	50 e0       	ldi	r21, 0x00	; 0
+ 246:	4c 0f       	add	r20, r28
+ 248:	5d 1f       	adc	r21, r29
+ 24a:	e4 0f       	add	r30, r20
+ 24c:	f5 1f       	adc	r31, r21
+ 24e:	80 81       	ld	r24, Z
+ 250:	91 81       	ldd	r25, Z+1	; 0x01
+ 252:	9e 8b       	std	Y+22, r25	; 0x16
+ 254:	8d 8b       	std	Y+21, r24	; 0x15
 	volatile int led_Zehner =  numbersAsSegments[(int) (count - (count % 10)) / 10];		// Segmentanzeige für Einer
- 1ae:	f9 01       	movw	r30, r18
- 1b0:	e8 1b       	sub	r30, r24
- 1b2:	f9 0b       	sbc	r31, r25
- 1b4:	cf 01       	movw	r24, r30
- 1b6:	b8 01       	movw	r22, r16
- 1b8:	0e 94 0f 01 	call	0x21e	; 0x21e <__divmodhi4>
- 1bc:	fb 01       	movw	r30, r22
- 1be:	ee 0f       	add	r30, r30
- 1c0:	ff 1f       	adc	r31, r31
- 1c2:	41 e0       	ldi	r20, 0x01	; 1
- 1c4:	50 e0       	ldi	r21, 0x00	; 0
- 1c6:	4c 0f       	add	r20, r28
- 1c8:	5d 1f       	adc	r21, r29
- 1ca:	e4 0f       	add	r30, r20
- 1cc:	f5 1f       	adc	r31, r21
- 1ce:	80 81       	ld	r24, Z
- 1d0:	91 81       	ldd	r25, Z+1	; 0x01
- 1d2:	98 8f       	std	Y+24, r25	; 0x18
- 1d4:	8f 8b       	std	Y+23, r24	; 0x17
+ 256:	e0 91 14 01 	lds	r30, 0x0114	; 0x800114 <__data_end>
+ 25a:	f0 91 15 01 	lds	r31, 0x0115	; 0x800115 <__data_end+0x1>
+ 25e:	80 91 14 01 	lds	r24, 0x0114	; 0x800114 <__data_end>
+ 262:	90 91 15 01 	lds	r25, 0x0115	; 0x800115 <__data_end+0x1>
+ 266:	b9 01       	movw	r22, r18
+ 268:	0e 94 6d 01 	call	0x2da	; 0x2da <__divmodhi4>
+ 26c:	af 01       	movw	r20, r30
+ 26e:	48 1b       	sub	r20, r24
+ 270:	59 0b       	sbc	r21, r25
+ 272:	ca 01       	movw	r24, r20
+ 274:	b9 01       	movw	r22, r18
+ 276:	0e 94 6d 01 	call	0x2da	; 0x2da <__divmodhi4>
+ 27a:	fb 01       	movw	r30, r22
+ 27c:	ee 0f       	add	r30, r30
+ 27e:	ff 1f       	adc	r31, r31
+ 280:	81 e0       	ldi	r24, 0x01	; 1
+ 282:	90 e0       	ldi	r25, 0x00	; 0
+ 284:	8c 0f       	add	r24, r28
+ 286:	9d 1f       	adc	r25, r29
+ 288:	e8 0f       	add	r30, r24
+ 28a:	f9 1f       	adc	r31, r25
+ 28c:	80 81       	ld	r24, Z
+ 28e:	91 81       	ldd	r25, Z+1	; 0x01
+ 290:	98 8f       	std	Y+24, r25	; 0x18
+ 292:	8f 8b       	std	Y+23, r24	; 0x17
 	
 	PORTD = led_Einer;
- 1d6:	8d 89       	ldd	r24, Y+21	; 0x15
- 1d8:	9e 89       	ldd	r25, Y+22	; 0x16
- 1da:	8b b9       	out	0x0b, r24	; 11
-	#else
-		//round up by default
-		__ticks_dc = (uint32_t)(ceil(fabs(__tmp)));
-	#endif
-
-	__builtin_avr_delay_cycles(__ticks_dc);
- 1dc:	8f e3       	ldi	r24, 0x3F	; 63
- 1de:	9c e9       	ldi	r25, 0x9C	; 156
- 1e0:	01 97       	sbiw	r24, 0x01	; 1
- 1e2:	f1 f7       	brne	.-4      	; 0x1e0 <display+0x84>
- 1e4:	00 c0       	rjmp	.+0      	; 0x1e6 <display+0x8a>
- 1e6:	00 00       	nop
-	_delay_ms(10);
+ 294:	8d 89       	ldd	r24, Y+21	; 0x15
+ 296:	9e 89       	ldd	r25, Y+22	; 0x16
+ 298:	8b b9       	out	0x0b, r24	; 11
+	//_delay_ms(10);
+	waitFor(10);
+ 29a:	6a e0       	ldi	r22, 0x0A	; 10
+ 29c:	70 e0       	ldi	r23, 0x00	; 0
+ 29e:	80 e0       	ldi	r24, 0x00	; 0
+ 2a0:	90 e0       	ldi	r25, 0x00	; 0
+ 2a2:	0e 94 a4 00 	call	0x148	; 0x148 <waitFor>
 	PORTB ^= (1 << PINB0);
- 1e8:	95 b1       	in	r25, 0x05	; 5
- 1ea:	81 e0       	ldi	r24, 0x01	; 1
- 1ec:	98 27       	eor	r25, r24
- 1ee:	95 b9       	out	0x05, r25	; 5
+ 2a6:	85 b1       	in	r24, 0x05	; 5
+ 2a8:	11 e0       	ldi	r17, 0x01	; 1
+ 2aa:	81 27       	eor	r24, r17
+ 2ac:	85 b9       	out	0x05, r24	; 5
 	
 	PORTD = led_Zehner;
- 1f0:	2f 89       	ldd	r18, Y+23	; 0x17
- 1f2:	38 8d       	ldd	r19, Y+24	; 0x18
- 1f4:	2b b9       	out	0x0b, r18	; 11
- 1f6:	ef e3       	ldi	r30, 0x3F	; 63
- 1f8:	fc e9       	ldi	r31, 0x9C	; 156
- 1fa:	31 97       	sbiw	r30, 0x01	; 1
- 1fc:	f1 f7       	brne	.-4      	; 0x1fa <display+0x9e>
- 1fe:	00 c0       	rjmp	.+0      	; 0x200 <display+0xa4>
- 200:	00 00       	nop
-	_delay_ms(10);
+ 2ae:	8f 89       	ldd	r24, Y+23	; 0x17
+ 2b0:	98 8d       	ldd	r25, Y+24	; 0x18
+ 2b2:	8b b9       	out	0x0b, r24	; 11
+	//_delay_ms(10);
+	waitFor(10);
+ 2b4:	6a e0       	ldi	r22, 0x0A	; 10
+ 2b6:	70 e0       	ldi	r23, 0x00	; 0
+ 2b8:	80 e0       	ldi	r24, 0x00	; 0
+ 2ba:	90 e0       	ldi	r25, 0x00	; 0
+ 2bc:	0e 94 a4 00 	call	0x148	; 0x148 <waitFor>
 	PORTB ^= (1 << PINB0);
- 202:	95 b1       	in	r25, 0x05	; 5
- 204:	89 27       	eor	r24, r25
- 206:	85 b9       	out	0x05, r24	; 5
+ 2c0:	85 b1       	in	r24, 0x05	; 5
+ 2c2:	18 27       	eor	r17, r24
+ 2c4:	15 b9       	out	0x05, r17	; 5
 }
- 208:	68 96       	adiw	r28, 0x18	; 24
- 20a:	0f b6       	in	r0, 0x3f	; 63
- 20c:	f8 94       	cli
- 20e:	de bf       	out	0x3e, r29	; 62
- 210:	0f be       	out	0x3f, r0	; 63
- 212:	cd bf       	out	0x3d, r28	; 61
- 214:	df 91       	pop	r29
- 216:	cf 91       	pop	r28
- 218:	1f 91       	pop	r17
- 21a:	0f 91       	pop	r16
- 21c:	08 95       	ret
+ 2c6:	68 96       	adiw	r28, 0x18	; 24
+ 2c8:	0f b6       	in	r0, 0x3f	; 63
+ 2ca:	f8 94       	cli
+ 2cc:	de bf       	out	0x3e, r29	; 62
+ 2ce:	0f be       	out	0x3f, r0	; 63
+ 2d0:	cd bf       	out	0x3d, r28	; 61
+ 2d2:	df 91       	pop	r29
+ 2d4:	cf 91       	pop	r28
+ 2d6:	1f 91       	pop	r17
+ 2d8:	08 95       	ret
 
-0000021e <__divmodhi4>:
- 21e:	97 fb       	bst	r25, 7
- 220:	07 2e       	mov	r0, r23
- 222:	16 f4       	brtc	.+4      	; 0x228 <__divmodhi4+0xa>
- 224:	00 94       	com	r0
- 226:	07 d0       	rcall	.+14     	; 0x236 <__divmodhi4_neg1>
- 228:	77 fd       	sbrc	r23, 7
- 22a:	09 d0       	rcall	.+18     	; 0x23e <__divmodhi4_neg2>
- 22c:	0e 94 23 01 	call	0x246	; 0x246 <__udivmodhi4>
- 230:	07 fc       	sbrc	r0, 7
- 232:	05 d0       	rcall	.+10     	; 0x23e <__divmodhi4_neg2>
- 234:	3e f4       	brtc	.+14     	; 0x244 <__divmodhi4_exit>
+000002da <__divmodhi4>:
+ 2da:	97 fb       	bst	r25, 7
+ 2dc:	07 2e       	mov	r0, r23
+ 2de:	16 f4       	brtc	.+4      	; 0x2e4 <__divmodhi4+0xa>
+ 2e0:	00 94       	com	r0
+ 2e2:	07 d0       	rcall	.+14     	; 0x2f2 <__divmodhi4_neg1>
+ 2e4:	77 fd       	sbrc	r23, 7
+ 2e6:	09 d0       	rcall	.+18     	; 0x2fa <__divmodhi4_neg2>
+ 2e8:	0e 94 81 01 	call	0x302	; 0x302 <__udivmodhi4>
+ 2ec:	07 fc       	sbrc	r0, 7
+ 2ee:	05 d0       	rcall	.+10     	; 0x2fa <__divmodhi4_neg2>
+ 2f0:	3e f4       	brtc	.+14     	; 0x300 <__divmodhi4_exit>
 
-00000236 <__divmodhi4_neg1>:
- 236:	90 95       	com	r25
- 238:	81 95       	neg	r24
- 23a:	9f 4f       	sbci	r25, 0xFF	; 255
- 23c:	08 95       	ret
+000002f2 <__divmodhi4_neg1>:
+ 2f2:	90 95       	com	r25
+ 2f4:	81 95       	neg	r24
+ 2f6:	9f 4f       	sbci	r25, 0xFF	; 255
+ 2f8:	08 95       	ret
 
-0000023e <__divmodhi4_neg2>:
- 23e:	70 95       	com	r23
- 240:	61 95       	neg	r22
- 242:	7f 4f       	sbci	r23, 0xFF	; 255
+000002fa <__divmodhi4_neg2>:
+ 2fa:	70 95       	com	r23
+ 2fc:	61 95       	neg	r22
+ 2fe:	7f 4f       	sbci	r23, 0xFF	; 255
 
-00000244 <__divmodhi4_exit>:
- 244:	08 95       	ret
+00000300 <__divmodhi4_exit>:
+ 300:	08 95       	ret
 
-00000246 <__udivmodhi4>:
- 246:	aa 1b       	sub	r26, r26
- 248:	bb 1b       	sub	r27, r27
- 24a:	51 e1       	ldi	r21, 0x11	; 17
- 24c:	07 c0       	rjmp	.+14     	; 0x25c <__udivmodhi4_ep>
+00000302 <__udivmodhi4>:
+ 302:	aa 1b       	sub	r26, r26
+ 304:	bb 1b       	sub	r27, r27
+ 306:	51 e1       	ldi	r21, 0x11	; 17
+ 308:	07 c0       	rjmp	.+14     	; 0x318 <__udivmodhi4_ep>
 
-0000024e <__udivmodhi4_loop>:
- 24e:	aa 1f       	adc	r26, r26
- 250:	bb 1f       	adc	r27, r27
- 252:	a6 17       	cp	r26, r22
- 254:	b7 07       	cpc	r27, r23
- 256:	10 f0       	brcs	.+4      	; 0x25c <__udivmodhi4_ep>
- 258:	a6 1b       	sub	r26, r22
- 25a:	b7 0b       	sbc	r27, r23
+0000030a <__udivmodhi4_loop>:
+ 30a:	aa 1f       	adc	r26, r26
+ 30c:	bb 1f       	adc	r27, r27
+ 30e:	a6 17       	cp	r26, r22
+ 310:	b7 07       	cpc	r27, r23
+ 312:	10 f0       	brcs	.+4      	; 0x318 <__udivmodhi4_ep>
+ 314:	a6 1b       	sub	r26, r22
+ 316:	b7 0b       	sbc	r27, r23
 
-0000025c <__udivmodhi4_ep>:
- 25c:	88 1f       	adc	r24, r24
- 25e:	99 1f       	adc	r25, r25
- 260:	5a 95       	dec	r21
- 262:	a9 f7       	brne	.-22     	; 0x24e <__udivmodhi4_loop>
- 264:	80 95       	com	r24
- 266:	90 95       	com	r25
- 268:	bc 01       	movw	r22, r24
- 26a:	cd 01       	movw	r24, r26
- 26c:	08 95       	ret
+00000318 <__udivmodhi4_ep>:
+ 318:	88 1f       	adc	r24, r24
+ 31a:	99 1f       	adc	r25, r25
+ 31c:	5a 95       	dec	r21
+ 31e:	a9 f7       	brne	.-22     	; 0x30a <__udivmodhi4_loop>
+ 320:	80 95       	com	r24
+ 322:	90 95       	com	r25
+ 324:	bc 01       	movw	r22, r24
+ 326:	cd 01       	movw	r24, r26
+ 328:	08 95       	ret
 
-0000026e <_exit>:
- 26e:	f8 94       	cli
+0000032a <_exit>:
+ 32a:	f8 94       	cli
 
-00000270 <__stop_program>:
- 270:	ff cf       	rjmp	.-2      	; 0x270 <__stop_program>
+0000032c <__stop_program>:
+ 32c:	ff cf       	rjmp	.-2      	; 0x32c <__stop_program>
diff --git a/P4/P4/Debug/P4.map b/P4/P4/Debug/P4.map
index 3eddb4f..36d31be 100644
--- a/P4/P4/Debug/P4.map
+++ b/P4/P4/Debug/P4.map
@@ -7,7 +7,7 @@ c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/..
 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_copy_data.o)
                               sevenseg.o (__do_copy_data)
 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_clear_bss.o)
-                              main.o (__do_clear_bss)
+                              sevenseg.o (__do_clear_bss)
 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_udivmodhi4.o)
                               c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o) (__udivmodhi4)
 
@@ -24,6 +24,8 @@ Discarded input sections
  .text          0x00000000        0x0 sevenseg.o
  .data          0x00000000        0x0 sevenseg.o
  .bss           0x00000000        0x0 sevenseg.o
+ .text.getSystemClock
+                0x00000000       0x12 sevenseg.o
  .text          0x00000000        0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o)
  .data          0x00000000        0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o)
  .bss           0x00000000        0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o)
@@ -227,7 +229,7 @@ END GROUP
 .rela.plt
  *(.rela.plt)
 
-.text           0x00000000      0x272
+.text           0x00000000      0x32e
  *(.vectors)
  .vectors       0x00000000       0x68 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.209/gcc/dev/atmega328p/avr5/crtatmega328p.o
                 0x00000000                __vector_default
@@ -306,34 +308,44 @@ END GROUP
                 0x000000a2                __vector_21
                 0x000000a2                __vector_15
                 0x000000a2                __vector_8
-                0x000000a2                __vector_14
                 0x000000a2                __vector_10
                 0x000000a2                __vector_16
                 0x000000a2                __vector_18
                 0x000000a2                __vector_20
                 0x000000a6                . = ALIGN (0x2)
  *(.text.*)
- .text.init     0x000000a6       0x28 keys.o
-                0x000000a6                init
+ .text.setupTimer0
+                0x000000a6       0x1c keys.o
+                0x000000a6                setupTimer0
+ .text.setupRegisters
+                0x000000c2       0x28 keys.o
+                0x000000c2                setupRegisters
+ .text.init     0x000000ea        0xa keys.o
+                0x000000ea                init
+ .text.main     0x000000f4        0xa main.o
+                0x000000f4                main
+ .text.__vector_14
+                0x000000fe       0x4a sevenseg.o
+                0x000000fe                __vector_14
+ .text.waitFor  0x00000148       0x40 sevenseg.o
+                0x00000148                waitFor
  .text.__vector_3
-                0x000000ce       0x7c main.o
-                0x000000ce                __vector_3
- .text.main     0x0000014a       0x12 main.o
-                0x0000014a                main
- .text.display  0x0000015c       0xc2 sevenseg.o
-                0x0000015c                display
+                0x00000188       0x7a sevenseg.o
+                0x00000188                __vector_3
+ .text.display  0x00000202       0xd8 sevenseg.o
+                0x00000202                display
  .text.libgcc.div
-                0x0000021e       0x28 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o)
-                0x0000021e                _div
-                0x0000021e                __divmodhi4
+                0x000002da       0x28 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_divmodhi4.o)
+                0x000002da                _div
+                0x000002da                __divmodhi4
  .text.libgcc.div
-                0x00000246       0x28 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_udivmodhi4.o)
-                0x00000246                __udivmodhi4
-                0x0000026e                . = ALIGN (0x2)
+                0x00000302       0x28 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_udivmodhi4.o)
+                0x00000302                __udivmodhi4
+                0x0000032a                . = ALIGN (0x2)
  *(.fini9)
- .fini9         0x0000026e        0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_exit.o)
-                0x0000026e                _exit
-                0x0000026e                exit
+ .fini9         0x0000032a        0x0 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_exit.o)
+                0x0000032a                _exit
+                0x0000032a                exit
  *(.fini9)
  *(.fini8)
  *(.fini8)
@@ -352,11 +364,11 @@ END GROUP
  *(.fini1)
  *(.fini1)
  *(.fini0)
- .fini0         0x0000026e        0x4 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_exit.o)
+ .fini0         0x0000032a        0x4 c:/program files (x86)/atmel/studio/7.0/toolchain/avr8/avr8-gnu-toolchain/bin/../lib/gcc/avr/5.4.0/avr5\libgcc.a(_exit.o)
  *(.fini0)
-                0x00000272                _etext = .
+                0x0000032e                _etext = .
 
-.data           0x00800100       0x14 load address 0x00000272
+.data           0x00800100       0x14 load address 0x0000032e
                 0x00800100                PROVIDE (__data_start, .)
  *(.data)
  *(.data*)
@@ -369,22 +381,25 @@ END GROUP
                 0x00800114                _edata = .
                 0x00800114                PROVIDE (__data_end, .)
 
-.bss            0x00800114        0x2
+.bss            0x00800114        0x6
                 0x00800114                PROVIDE (__bss_start, .)
  *(.bss)
  *(.bss*)
- .bss.count     0x00800114        0x2 main.o
+ .bss.count     0x00800114        0x2 sevenseg.o
                 0x00800114                count
+ .bss.systemClock
+                0x00800116        0x4 sevenseg.o
+                0x00800116                systemClock
  *(COMMON)
-                0x00800116                PROVIDE (__bss_end, .)
-                0x00000272                __data_load_start = LOADADDR (.data)
-                0x00000286                __data_load_end = (__data_load_start + SIZEOF (.data))
+                0x0080011a                PROVIDE (__bss_end, .)
+                0x0000032e                __data_load_start = LOADADDR (.data)
+                0x00000342                __data_load_end = (__data_load_start + SIZEOF (.data))
 
-.noinit         0x00800116        0x0
+.noinit         0x0080011a        0x0
                 [!provide]                PROVIDE (__noinit_start, .)
  *(.noinit*)
                 [!provide]                PROVIDE (__noinit_end, .)
-                0x00800116                _end = .
+                0x0080011a                _end = .
                 [!provide]                PROVIDE (__heap_start, .)
 
 .eeprom         0x00810000        0x0
@@ -451,59 +466,58 @@ END GROUP
 .debug_sfnames
  *(.debug_sfnames)
 
-.debug_aranges  0x00000000       0x68
+.debug_aranges  0x00000000       0x90
  *(.debug_aranges)
  .debug_aranges
-                0x00000000       0x20 keys.o
+                0x00000000       0x30 keys.o
  .debug_aranges
-                0x00000020       0x28 main.o
+                0x00000030       0x20 main.o
  .debug_aranges
-                0x00000048       0x20 sevenseg.o
+                0x00000050       0x40 sevenseg.o
 
 .debug_pubnames
  *(.debug_pubnames)
 
-.debug_info     0x00000000      0x8f2
+.debug_info     0x00000000      0x94d
  *(.debug_info .gnu.linkonce.wi.*)
  .debug_info    0x00000000      0x5f4 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.209/gcc/dev/atmega328p/avr5/crtatmega328p.o
- .debug_info    0x000005f4       0x82 keys.o
- .debug_info    0x00000676       0xe6 main.o
- .debug_info    0x0000075c      0x196 sevenseg.o
+ .debug_info    0x000005f4       0xbf keys.o
+ .debug_info    0x000006b3       0xae main.o
+ .debug_info    0x00000761      0x1ec sevenseg.o
 
-.debug_abbrev   0x00000000      0x797
+.debug_abbrev   0x00000000      0x799
  *(.debug_abbrev)
  .debug_abbrev  0x00000000      0x5a2 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.209/gcc/dev/atmega328p/avr5/crtatmega328p.o
- .debug_abbrev  0x000005a2       0x4f keys.o
- .debug_abbrev  0x000005f1       0xa5 main.o
- .debug_abbrev  0x00000696      0x101 sevenseg.o
+ .debug_abbrev  0x000005a2       0x70 keys.o
+ .debug_abbrev  0x00000612       0x68 main.o
+ .debug_abbrev  0x0000067a      0x11f sevenseg.o
 
-.debug_line     0x00000000      0x448
+.debug_line     0x00000000      0x432
  *(.debug_line .debug_line.* .debug_line_end)
  .debug_line    0x00000000      0x133 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.209/gcc/dev/atmega328p/avr5/crtatmega328p.o
- .debug_line    0x00000133       0xc3 keys.o
- .debug_line    0x000001f6      0x107 main.o
- .debug_line    0x000002fd      0x14b sevenseg.o
+ .debug_line    0x00000133      0x107 keys.o
+ .debug_line    0x0000023a       0x5f main.o
+ .debug_line    0x00000299      0x199 sevenseg.o
 
-.debug_frame    0x00000000       0xac
+.debug_frame    0x00000000      0x124
  *(.debug_frame)
- .debug_frame   0x00000000       0x24 keys.o
- .debug_frame   0x00000024       0x48 main.o
- .debug_frame   0x0000006c       0x40 sevenseg.o
+ .debug_frame   0x00000000       0x44 keys.o
+ .debug_frame   0x00000044       0x24 main.o
+ .debug_frame   0x00000068       0xbc sevenseg.o
 
-.debug_str      0x00000000      0x41d
+.debug_str      0x00000000      0x42d
  *(.debug_str)
  .debug_str     0x00000000      0x208 C:/Program Files (x86)/Atmel/Studio/7.0/Packs/atmel/ATmega_DFP/1.2.209/gcc/dev/atmega328p/avr5/crtatmega328p.o
- .debug_str     0x00000208      0x160 keys.o
-                                0x194 (size before relaxing)
- .debug_str     0x00000368       0x2a main.o
-                                0x1b2 (size before relaxing)
- .debug_str     0x00000392       0x8b sevenseg.o
+ .debug_str     0x00000208      0x17b keys.o
+                                0x1af (size before relaxing)
+ .debug_str     0x00000383       0x19 main.o
+                                0x199 (size before relaxing)
+ .debug_str     0x0000039c       0x91 sevenseg.o
                                 0x21c (size before relaxing)
 
-.debug_loc      0x00000000      0x170
+.debug_loc      0x00000000      0x12f
  *(.debug_loc)
- .debug_loc     0x00000000       0x49 main.o
- .debug_loc     0x00000049      0x127 sevenseg.o
+ .debug_loc     0x00000000      0x12f sevenseg.o
 
 .debug_macinfo
  *(.debug_macinfo)
@@ -523,11 +537,11 @@ END GROUP
 .debug_pubtypes
  *(.debug_pubtypes)
 
-.debug_ranges   0x00000000       0x38
+.debug_ranges   0x00000000       0x60
  *(.debug_ranges)
- .debug_ranges  0x00000000       0x10 keys.o
- .debug_ranges  0x00000010       0x18 main.o
- .debug_ranges  0x00000028       0x10 sevenseg.o
+ .debug_ranges  0x00000000       0x20 keys.o
+ .debug_ranges  0x00000020       0x10 main.o
+ .debug_ranges  0x00000030       0x30 sevenseg.o
 
 .debug_macro
  *(.debug_macro)
diff --git a/P4/P4/Debug/P4.srec b/P4/P4/Debug/P4.srec
index aeb9e3c..d74857a 100644
--- a/P4/P4/Debug/P4.srec
+++ b/P4/P4/Debug/P4.srec
@@ -1,44 +1,55 @@
 S00A000050342E7372656396
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 S11300100C9451000C9451000C9451000C94510018
 S11300200C9451000C9451000C9451000C94510008
-S11300300C9451000C9451000C9451000C945100F8
+S11300300C9451000C9451000C947F000C945100CA
 S11300400C9451000C9451000C9451000C945100E8
 S11300500C9451000C9451000C9451000C945100D8
 S11300600C9451000C94510011241FBECFEFD8E022
-S1130070DEBFCDBF11E0A0E0B1E0E2E7F2E002C0F4
+S1130070DEBFCDBF11E0A0E0B1E0EEE2F3E002C0EC
 S113008005900D92A431B107D9F721E0A4E1B1E0C4
-S113009001C01D92A631B207E1F70E94A5000C949D
-S11300A037010C9400008FEF8AB981E084B985B1DF
-S11300B0866085B9F894E8E6F0E080818160808309
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-S11301000197909315018093140118C01A9916C091
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-S11301209FEF909315018093140180911401909195
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 S9030000FC
diff --git a/P4/P4/Debug/keys.o b/P4/P4/Debug/keys.o
index 5e9b0548c75f385043ae924f2b774b6ac044b135..775e8d66deed94ab2c1f8a1df407c494691fcf32 100644
GIT binary patch
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diff --git a/P4/P4/Debug/main.o b/P4/P4/Debug/main.o
index 0bcd2e7299d0497256eb72d901e049539b94b89e..906aced8b61277db773b42f404c809d8821a7892 100644
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diff --git a/P4/P4/Debug/sevenseg.d b/P4/P4/Debug/sevenseg.d
index 3a93be3..54fa8ed 100644
--- a/P4/P4/Debug/sevenseg.d
+++ b/P4/P4/Debug/sevenseg.d
@@ -5,6 +5,7 @@ sevenseg.d sevenseg.o: .././sevenseg.c .././sevenseg.h \
  c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\stdint.h \
  c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\util\delay_basic.h \
  c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\math.h \
+ c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\interrupt.h \
  c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\io.h \
  c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\sfr_defs.h \
  C:\Program\ Files\ (x86)\Atmel\Studio\7.0\Packs\atmel\ATmega_DFP\1.2.209\include/avr/iom328p.h \
@@ -28,6 +29,8 @@ c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\
 
 c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\math.h:
 
+c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\interrupt.h:
+
 c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\io.h:
 
 c:\program\ files\ (x86)\atmel\studio\7.0\toolchain\avr8\avr8-gnu-toolchain\avr\include\avr\sfr_defs.h:
diff --git a/P4/P4/Debug/sevenseg.o b/P4/P4/Debug/sevenseg.o
index dcbce7ed0c9f4fcd8c6168ae93e12bf21eac3501..ab66e692ed931b18bf1184053392f90455352651 100644
GIT binary patch
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diff --git a/P4/P4/keys.c b/P4/P4/keys.c
index 93576a1..15df574 100644
--- a/P4/P4/keys.c
+++ b/P4/P4/keys.c
@@ -1,22 +1,34 @@
 #include "keys.h"
 
-
-void init(){
-	DDRD = 0xff;										// Data direction register D (D0 -> D6) as output
-	// PORTD = 0xff;									// setting bit for 7-segment show 0
-	// => spielt keine Rolle, wird von der while Schleife übernommen
-	
-	DDRB = 0x01;										// Data direction register B (B0) as output and DDRB (B1, B2) as input
-	PORTB |= (1 << PINB1) | (1 << PINB2) ;				// setting bit for teens and SW1-2
-			// PINB=0 => start with LED3 (Einer)
-	
-	// mit unserem Atmega nicht möglich, da keine PCINT8_vect und PCINT9_vect vorhanden
-	// DDRC = 0x00;										// Data direction register C as input for SW1 and SW2
-	// PORTC |= (1<<PINC0) | (1<<PINC1);					// settings pins for SW1 -> PINC0 and SW2 -> PINC1
-	
-	cli();												// clear global interrupt flag: interrupts will be immediately disabled
-	PCICR |= 0x01;										// Pin Change Interrupt Control Register: turn on PortB
-	PCMSK0 |= (1 << PINB1) | (1 << PINB2);				// trigger interrupt when SW1 or SW2 is pressed 
-	sei();												// set global interrupt enable
+void setupTimer0() {
+	// Configure Timer0 for CTC mode
+	TCCR0A |= (1 << WGM01);                 // Set Waveform Generation Mode bits for CTC
+	TCCR0B |= (1 << CS01) | (1 << CS00);    // Set prescaler to 64
+	OCR0A = 249;                            // Set Output Compare Register to 249 for ~1ms interrupt
+	TIMSK0 |= (1 << OCIE0A);                // Enable Timer0 Output Compare A Match interrupt
 }
 
+void setupRegisters(){
+		DDRD = 0xff;										// Data direction register D (D0 -> D6) as output
+		// PORTD = 0xff;									// setting bit for 7-segment show 0
+		// => spielt keine Rolle, wird von der while Schleife �bernommen
+		
+		DDRB = 0x01;										// Data direction register B (B0) as output and DDRB (B1, B2) as input
+		PORTB |= (1 << PINB1) | (1 << PINB2) ;				// setting bit for teens B0=0 and SW1-2
+		// PINB=0 => start with LED3 (Einer)
+		
+		// mit unserem Atmega nicht m�glich, da keine PCINT8_vect und PCINT9_vect vorhanden
+		// DDRC = 0x00;										// Data direction register C as input for SW1 and SW2
+		// PORTC |= (1<<PINC0) | (1<<PINC1);					// settings pins for SW1 -> PINC0 and SW2 -> PINC1
+		
+		cli();												// clear global interrupt flag: interrupts will be immediately disabled
+		PCICR |= 0x01;										// Pin Change Interrupt Control Register: turn on PortB
+		PCMSK0 |= (1 << PINB1) | (1 << PINB2);				// trigger interrupt when SW1 or SW2 is pressed
+		sei();												// set global interrupt enable
+
+}
+
+void init(){
+	setupTimer0();
+	setupRegisters();
+}
\ No newline at end of file
diff --git a/P4/P4/keys.h b/P4/P4/keys.h
index 5de2e71..89122b7 100644
--- a/P4/P4/keys.h
+++ b/P4/P4/keys.h
@@ -4,6 +4,8 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
 
+void setupTimer0();
+void setupRegisters();
 void init();
 
 
diff --git a/P4/P4/main.c b/P4/P4/main.c
index 71eed60..e150c74 100644
--- a/P4/P4/main.c
+++ b/P4/P4/main.c
@@ -1,26 +1,11 @@
 #include "keys.h"
 #include "sevenseg.h"
 
-volatile int count = 0;
-
-ISR(PCINT0_vect) {											// every 10ms interrupt is triggered
-	
-	if (!(PINB & (1<<PINB1))) {								// count down => sw1 is pressed
-		if (count == 0) count = 100;						// 100 - 1 = 99
-		count--;
-	}
-	
-	if (!(PINB & (1<<PINB2))) {								// count up => sw2 is pressed
-		if (count == 99) count = -1;						// -1 + 1 = 0
-		count++;
-	}
-}
-
 int main(void) {
 	init();
 	
 	while(1) {
-		display(count);
+		display();
 	}
 }
 
diff --git a/P4/P4/sevenseg.c b/P4/P4/sevenseg.c
index bb1cb53..1728c2f 100644
--- a/P4/P4/sevenseg.c
+++ b/P4/P4/sevenseg.c
@@ -1,6 +1,42 @@
 #include "sevenseg.h"
 
-void display(int count) {
+//-Timer---------------------------------------
+
+volatile uint32_t systemClock = 0;
+
+ISR(TIMER0_COMPA_vect) {
+	systemClock++;  
+}
+
+uint32_t getSystemClock(){
+	return systemClock;
+}
+
+void waitFor(uint32_t ms) {
+	uint32_t endTime = getSystemClock() + ms;
+	while (getSystemClock() != endTime);
+}
+
+//-Counter-------------------------------------
+
+volatile int count = 0;
+
+ISR(PCINT0_vect) {											// every 10ms interrupt is triggered
+	
+	if (!(PINB & (1<<PINB1))) {								// count down => sw1 is pressed
+		if (count == 0) count = 100;						// 100 - 1 = 99
+		count--;
+	}
+	
+	if (!(PINB & (1<<PINB2))) {								// count up => sw2 is pressed
+		if (count == 99) count = -1;						// -1 + 1 = 0
+		count++;
+	}
+}
+
+//-Display--------------------------------------
+
+void display() {
 	/*
 	logical 0: on
 	logical 1: off
@@ -20,14 +56,16 @@ void display(int count) {
 
 	int numbersAsSegments[10] = { 192, 249, 164, 48, 153, 146, 130, 248, 128, 144 };		// display number from 0 to 9;
 	
-	volatile int led_Einer = numbersAsSegments[(int) count % 10];						// Segmentanzeige für Zehner
+	volatile int led_Einer = numbersAsSegments[(int) count % 10];							// Segmentanzeige für Zehner
 	volatile int led_Zehner =  numbersAsSegments[(int) (count - (count % 10)) / 10];		// Segmentanzeige für Einer
 	
 	PORTD = led_Einer;
-	_delay_ms(10);
+	//_delay_ms(10);
+	waitFor(10);
 	PORTB ^= (1 << PINB0);
 	
 	PORTD = led_Zehner;
-	_delay_ms(10);
+	//_delay_ms(10);
+	waitFor(10);
 	PORTB ^= (1 << PINB0);
 }
diff --git a/P4/P4/sevenseg.h b/P4/P4/sevenseg.h
index e7dc30c..4645d8c 100644
--- a/P4/P4/sevenseg.h
+++ b/P4/P4/sevenseg.h
@@ -2,8 +2,11 @@
 #define SEVENSEG_H_
 #define F_CPU 16000000UL    // 16MHz clock frequency
 #include <util/delay.h>
+#include <avr/interrupt.h>
 #include "avr/io.h"
 
-void display(int count);
+uint32_t getSystemClock();
+void waitFor(uint32_t ms);
+void display();
 
 #endif /* SEVENSEG_H_ */
\ No newline at end of file
diff --git a/P5/.vscode/c_cpp_properties.json b/P5/.vscode/c_cpp_properties.json
new file mode 100644
index 0000000..ec932fb
--- /dev/null
+++ b/P5/.vscode/c_cpp_properties.json
@@ -0,0 +1,18 @@
+{
+  "configurations": [
+    {
+      "name": "windows-msvc-x64",
+      "includePath": [
+        "${workspaceFolder}/**"
+      ],
+      "compilerPath": "cl.exe",
+      "cStandard": "c11",
+      "cppStandard": "c++14",
+      "intelliSenseMode": "windows-msvc-x64",
+      "compilerArgs": [
+        ""
+      ]
+    }
+  ],
+  "version": 4
+}
\ No newline at end of file
diff --git a/P5/.vscode/launch.json b/P5/.vscode/launch.json
new file mode 100644
index 0000000..e082dc7
--- /dev/null
+++ b/P5/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "C/C++ Runner: Debug Session",
+      "type": "cppvsdbg",
+      "request": "launch",
+      "args": [],
+      "stopAtEntry": false,
+      "console": "externalTerminal",
+      "cwd": "c:/Users/Safak/SynologyDrive/UNI/3. Semester/53107 ARBK/Praktikumsunterlagen/ARBKVS-Praktika/P5",
+      "program": "c:/Users/Safak/SynologyDrive/UNI/3. Semester/53107 ARBK/Praktikumsunterlagen/ARBKVS-Praktika/P5/build/Debug/outDebug"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/P5/.vscode/settings.json b/P5/.vscode/settings.json
new file mode 100644
index 0000000..9a126f5
--- /dev/null
+++ b/P5/.vscode/settings.json
@@ -0,0 +1,115 @@
+{
+  "C_Cpp_Runner.cCompilerPath": "gcc",
+  "C_Cpp_Runner.cppCompilerPath": "g++",
+  "C_Cpp_Runner.debuggerPath": "gdb",
+  "C_Cpp_Runner.cStandard": "",
+  "C_Cpp_Runner.cppStandard": "c++14",
+  "C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/2022/Enterprise/VC/Auxiliary/Build/vcvarsall.bat",
+  "C_Cpp_Runner.useMsvc": true,
+  "C_Cpp_Runner.warnings": [
+    "-Wall",
+    "-Wextra",
+    "-Wpedantic",
+    "-Wshadow",
+    "-Wformat=2",
+    "-Wcast-align",
+    "-Wconversion",
+    "-Wsign-conversion",
+    "-Wnull-dereference"
+  ],
+  "C_Cpp_Runner.msvcWarnings": [
+    "/W4",
+    "/permissive-",
+    "/w14242",
+    "/w14287",
+    "/w14296",
+    "/w14311",
+    "/w14826",
+    "/w44062",
+    "/w44242",
+    "/w14905",
+    "/w14906",
+    "/w14263",
+    "/w44265",
+    "/w14928"
+  ],
+  "C_Cpp_Runner.enableWarnings": true,
+  "C_Cpp_Runner.warningsAsError": false,
+  "C_Cpp_Runner.compilerArgs": [],
+  "C_Cpp_Runner.linkerArgs": [],
+  "C_Cpp_Runner.includePaths": [],
+  "C_Cpp_Runner.includeSearch": [
+    "*",
+    "**/*"
+  ],
+  "C_Cpp_Runner.excludeSearch": [
+    "**/build",
+    "**/build/**",
+    "**/.*",
+    "**/.*/**",
+    "**/.vscode",
+    "**/.vscode/**"
+  ],
+  "C_Cpp_Runner.useAddressSanitizer": false,
+  "C_Cpp_Runner.useUndefinedSanitizer": false,
+  "C_Cpp_Runner.useLeakSanitizer": false,
+  "C_Cpp_Runner.showCompilationTime": false,
+  "C_Cpp_Runner.useLinkTimeOptimization": false,
+  "C_Cpp_Runner.msvcSecureNoWarnings": false,
+  "files.associations": {
+    "atomic": "cpp",
+    "bit": "cpp",
+    "cctype": "cpp",
+    "charconv": "cpp",
+    "clocale": "cpp",
+    "cmath": "cpp",
+    "compare": "cpp",
+    "concepts": "cpp",
+    "condition_variable": "cpp",
+    "cstddef": "cpp",
+    "cstdint": "cpp",
+    "cstdio": "cpp",
+    "cstdlib": "cpp",
+    "cstring": "cpp",
+    "ctime": "cpp",
+    "cwchar": "cpp",
+    "exception": "cpp",
+    "format": "cpp",
+    "initializer_list": "cpp",
+    "ios": "cpp",
+    "iosfwd": "cpp",
+    "iostream": "cpp",
+    "istream": "cpp",
+    "iterator": "cpp",
+    "limits": "cpp",
+    "locale": "cpp",
+    "memory": "cpp",
+    "mutex": "cpp",
+    "new": "cpp",
+    "ostream": "cpp",
+    "ratio": "cpp",
+    "stdexcept": "cpp",
+    "stop_token": "cpp",
+    "streambuf": "cpp",
+    "string": "cpp",
+    "system_error": "cpp",
+    "thread": "cpp",
+    "tuple": "cpp",
+    "type_traits": "cpp",
+    "typeinfo": "cpp",
+    "utility": "cpp",
+    "xfacet": "cpp",
+    "xiosbase": "cpp",
+    "xlocale": "cpp",
+    "xlocbuf": "cpp",
+    "xlocinfo": "cpp",
+    "xlocmes": "cpp",
+    "xlocmon": "cpp",
+    "xlocnum": "cpp",
+    "xloctime": "cpp",
+    "xmemory": "cpp",
+    "xstring": "cpp",
+    "xtr1common": "cpp",
+    "xutility": "cpp"
+  }
+}
\ No newline at end of file
diff --git a/P5/Main.cpp b/P5/Main.cpp
new file mode 100644
index 0000000..5e8fec7
--- /dev/null
+++ b/P5/Main.cpp
@@ -0,0 +1,142 @@
+#include <iostream>
+#include <thread>
+#include <mutex>
+#include "Semaphore.h"
+#include <process.h>
+
+using namespace std;
+
+// Thread T1 - Schreibt alle Kleinbuchstaben des Alphabets
+void thread1() {
+    for (char c = 'a'; c <= 'z'; ++c) {
+        cout << c << ' ';
+    }
+    cout << endl;
+}
+
+// Thread T2 - Schreibt alle natürlichen Zahlen von 0 bis 32
+void thread2() {
+    for (int i = 0; i <= 32; ++i) {
+        cout << i << ' ';
+    }
+    cout << endl;
+}
+
+// Thread T3 - Schreibt alle Großbuchstaben des Alphabets
+void thread3() {
+    for (char c = 'A'; c <= 'Z'; ++c) {
+        cout << c << ' ';
+    }
+    cout << endl;
+}
+
+void asynch_init(){
+    // Start der Threads
+    thread t1(thread1);
+    thread t2(thread2);
+    thread t3(thread3);
+    
+    // Warten auf die Beendigung der Threads
+    t1.join();
+    t2.join();
+    t3.join();
+}
+
+mutex mtx;
+
+void mutexThread1() {
+    mtx.lock();
+
+    for (char ch = 'a'; ch <= 'z'; ch++) {
+        cout << ch << " ";
+    }
+    cout << endl;
+
+    mtx.unlock();
+}
+
+void mutexThread2() {
+   
+    mtx.lock();
+
+    for (int i = 0; i < 33; i++) {
+        cout << i << " ";
+    }
+    cout << endl;
+
+    mtx.unlock();
+}
+
+void mutexThread3() {
+    mtx.lock();
+
+    for (char ch = 'A'; ch <= 'Z'; ch++) {
+        cout << ch << " ";
+    }
+    cout << endl;
+
+    mtx.unlock();
+}
+
+void mutex_init() {
+    thread t1(mutexThread1); // mutexThread1 is running
+    thread t2(mutexThread2); // mutexThread2 is running
+    thread t3(mutexThread3); // mutexThread3 is running
+    t1.join();  // main thread waits for t1 to finish
+    t2.join();  // main thread waits for t2 to finish
+    t3.join();  // main thread waits for t3 to finish
+}
+
+Semaphore semaphore;
+
+void semaphoreThread1() {
+    semaphore.wait();
+    for (char ch = 'a'; ch <= 'z'; ch++) {
+        cout << ch << " ";
+    }
+    cout << endl;
+    semaphore.post();
+}
+
+void semaphoreThread2() {
+    semaphore.wait();
+    for (int i = 0; i < 33; i++) {
+        cout << i << " ";
+    }
+    cout << endl;
+    semaphore.post();
+
+}
+
+void semaphoreThread3() {
+    semaphore.wait();
+    for (char ch = 'A'; ch <= 'Z'; ch++) {
+        cout << ch << " ";
+    }
+    cout << endl;
+    semaphore.post();
+
+}
+
+void semaphore_init() {
+    thread t1(semaphoreThread1); // thread1 is running
+    thread t2(semaphoreThread2); // thread2 is running
+    thread t3(semaphoreThread3); // thread3 is running
+    t1.join();  // main thread waits for t1 to finish
+    t2.join();  // main thread waits for t2 to finish
+    t3.join();  // main thread waits for t3 to finish
+}
+
+int main() {
+
+    cout << "Asynch" << endl;
+    asynch_init();
+
+    cout << "Mutex" << endl;
+    mutex_init();
+
+    cout << "Semaphore" << endl;
+    semaphore_init();
+    
+    return 0;
+}
\ No newline at end of file
diff --git a/P5/Semaphore.h b/P5/Semaphore.h
new file mode 100644
index 0000000..d55117b
--- /dev/null
+++ b/P5/Semaphore.h
@@ -0,0 +1,52 @@
+#ifndef MULTITHREADING_SEMAPHORE_H
+#define MULTITHREADING_SEMAPHORE_H
+#include <mutex>
+#include <condition_variable>
+
+class Semaphore {
+private:
+    std::mutex mtx;
+    std::condition_variable cv;
+    int signal;
+
+public:
+    Semaphore(int signal_ = 1) : signal(signal_) { }
+
+    /**
+     * atomic function
+     */
+    
+    inline void post() {
+        std::unique_lock<std::mutex> lock(mtx);
+        signal++;
+
+        //notify the waiting thread
+        //unblock(), waiting queue it not empty, wake up call thread from waiting queue
+
+        cv.notify_one();
+
+        /** Notify one
+         * Unblocks one of the threads currently waiting for this condition.
+         * If no threads are waiting, the function does nothing.
+         */
+    }
+
+    /**
+     * atomic function
+     */
+
+    inline void wait() {
+        std::unique_lock<std::mutex> lock(mtx);
+        if (signal <= 0) {
+
+            // wait on the mutex until notify is called
+            // block(), put this thread into waiting status, sleep and put in waiting queue
+            cv.wait(lock);
+        }
+        if (signal > 0) {
+            signal--;
+        }
+    }
+
+};
+#endif //MULTITHREADING_SEMAPHORE_H