make: fix build-deps, and avr-objdump -d build/src/hello.elf

build/src/hello.elf: file format elf32-avr


Disassembly of section .text:

00000000 <__vectors>:
0: 0c 94 34 00 jmp 0x68 ; 0x68 <__ctors_end>
4: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
8: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
c: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
10: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
14: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
18: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
1c: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
20: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
24: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
28: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
2c: 0c 94 58 00 jmp 0xb0 ; 0xb0 <__vector_11>
30: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
34: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
38: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
3c: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
40: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
44: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
48: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
4c: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
50: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
54: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
58: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
5c: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
60: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>
64: 0c 94 3e 00 jmp 0x7c ; 0x7c <__bad_interrupt>

00000068 <__ctors_end>:
68: 11 24 eor r1, r1
6a: 1f be out 0x3f, r1 ; 63
6c: cf ef ldi r28, 0xFF ; 255
6e: d8 e0 ldi r29, 0x08 ; 8
70: de bf out 0x3e, r29 ; 62
72: cd bf out 0x3d, r28 ; 61
74: 0e 94 90 00 call 0x120 ; 0x120 <main>
78: 0c 94 a3 00 jmp 0x146 ; 0x146 <_exit>

0000007c <__bad_interrupt>:
7c: 0c 94 00 00 jmp 0 ; 0x0 <__vectors>

00000080 <timer_init>:
80: 10 92 80 00 sts 0x0080, r1
84: 88 e0 ldi r24, 0x08 ; 8
86: 80 93 81 00 sts 0x0081, r24
8a: 10 92 82 00 sts 0x0082, r1
8e: 08 95 ret

00000090 <timer1_start>:
90: 10 92 85 00 sts 0x0085, r1
94: 10 92 84 00 sts 0x0084, r1
98: 90 93 89 00 sts 0x0089, r25
9c: 80 93 88 00 sts 0x0088, r24
a0: f1 9a sbi 0x1e, 1 ; 30
a2: 82 e0 ldi r24, 0x02 ; 2
a4: 80 93 6f 00 sts 0x006F, r24
a8: 8d e0 ldi r24, 0x0D ; 13
aa: 80 93 81 00 sts 0x0081, r24
ae: 08 95 ret

000000b0 <__vector_11>:
b0: 1f 92 push r1
b2: 0f 92 push r0
b4: 0f b6 in r0, 0x3f ; 63
b6: 0f 92 push r0
b8: 11 24 eor r1, r1
ba: 10 92 81 00 sts 0x0081, r1
be: f1 98 cbi 0x1e, 1 ; 30
c0: 0f 90 pop r0
c2: 0f be out 0x3f, r0 ; 63
c4: 0f 90 pop r0
c6: 1f 90 pop r1
c8: 18 95 reti

000000ca <timer_sleep>:
ca: 0e 94 48 00 call 0x90 ; 0x90 <timer1_start>
ce: 81 e0 ldi r24, 0x01 ; 1
d0: 83 bf out 0x33, r24 ; 51
d2: 01 c0 rjmp .+2 ; 0xd6 <timer_sleep+0xc>
d4: 88 95 sleep
d6: 8e b3 in r24, 0x1e ; 30
d8: 81 fd sbrc r24, 1
da: fc cf rjmp .-8 ; 0xd4 <timer_sleep+0xa>
dc: 13 be out 0x33, r1 ; 51
de: 08 95 ret

000000e0 <serial_init>:
e0: 10 92 c0 00 sts 0x00C0, r1
e4: 10 92 c1 00 sts 0x00C1, r1
e8: 86 e0 ldi r24, 0x06 ; 6
ea: 80 93 c2 00 sts 0x00C2, r24
ee: 87 e6 ldi r24, 0x67 ; 103
f0: 90 e0 ldi r25, 0x00 ; 0
f2: 90 93 c5 00 sts 0x00C5, r25
f6: 80 93 c4 00 sts 0x00C4, r24
fa: 08 95 ret

000000fc <serial_enable>:
fc: 88 e1 ldi r24, 0x18 ; 24
fe: 80 93 c1 00 sts 0x00C1, r24
102: 08 95 ret

00000104 <serial_read>:
104: 80 91 c0 00 lds r24, 0x00C0
108: 87 ff sbrs r24, 7
10a: fc cf rjmp .-8 ; 0x104 <serial_read>
10c: 80 91 c6 00 lds r24, 0x00C6
110: 08 95 ret

00000112 <serial_write>:
112: 90 91 c0 00 lds r25, 0x00C0
116: 95 ff sbrs r25, 5
118: fc cf rjmp .-8 ; 0x112 <serial_write>
11a: 80 93 c6 00 sts 0x00C6, r24
11e: 08 95 ret

00000120 <main>:
120: 1f 93 push r17
122: 0e 94 40 00 call 0x80 ; 0x80 <timer_init>
126: 0e 94 70 00 call 0xe0 ; 0xe0 <serial_init>
12a: 25 9a sbi 0x04, 5 ; 4
12c: 0e 94 7e 00 call 0xfc ; 0xfc <serial_enable>
130: 78 94 sei
132: 88 e5 ldi r24, 0x58 ; 88
134: 10 e2 ldi r17, 0x20 ; 32
136: 0e 94 89 00 call 0x112 ; 0x112 <serial_write>
13a: 85 b1 in r24, 0x05 ; 5
13c: 81 27 eor r24, r17
13e: 85 b9 out 0x05, r24 ; 5
140: 0e 94 82 00 call 0x104 ; 0x104 <serial_read>
144: f8 cf rjmp .-16 ; 0x136 <main+0x16>

00000146 <_exit>:
146: f8 94 cli

00000148 <__stop_program>:
148: ff cf rjmp .-2 ; 0x148 <__stop_program>

     1

.nolist

     2

.include "m168def.inc"      ; Same family as 328P

     3

.list

     4

     5

.include "macros.inc"

     6

     7

;; Load a 16-bit *word* address into the given register a a byte address

     8

.macro loadp_16_i

     9

		ldi			@0, high(2 * @2)

    10

		ldi			@1, low(2 * @2)

    11

.endm

    12

    13

.macro load_16_i

    14

		ldi			@0, high(@2)

    15

		ldi			@1, low(@2)

    16

.endm

    17

    18

;; Data

    19

.dseg

    20

buffer:	.byte 0

    21

    22

;; Interrupt Vector

    23

.cseg

    24

.org 0x0000

    25

        rjmp        Main

    26

    27

;; Libraries

    28

.include "div.inc"			; Division routines

    29

    30

;; Serial

    31

.set SERIAL_BAUD = 103		; 9.6k @ 16Mhz

    32

    33

;; Initialize the UART for 

    34

Serial_Init:

    35

	; Set up control registers

    36

		; Single-speed

    37

		poke		[UCSR0A, r16, (0 << U2X0)]

    38

    39

		; Async

    40

		; n parity

    41

		; 1 stop

    42

		; 8 bits

    43

		poke		[UCSR0C, r16, (0b00 << UMSEL00) | (0b00 << UPM00) | (0 << USBS0) | (0b11 << UCSZ00)]

    44

    45

		; Baud rate

    46

		poke		[UBRR0L, r16:r17, SERIAL_BAUD]

    47

    48

		; Enable RX

    49

		; Enable TX

    50

		; 8 bits

    51

		poke		[UCSR0B, r16, (1 << RXEN0) | (1 << TXEN0) | (0 << UCSZ02)]

    52

    53

	; Done

    54

		ret

    55

    56

;; Send a single byte on serial port

    57

; Input byte in r16

    58

Serial_Send:

    59

	; Wait for idle

    60

		lds			r0, UCSR0A

    61

		sbrs		r0, UDRE0

    62

		rjmp		Serial_Send

    63

    64

	; Copy byte to buffer

    65

		sts			UDR0, r16

    66

    67

	; Done

    68

		ret

    69

    70

;; Read a single byte from serial port

    71

; Output byte in r16

    72

Serial_Recv:

    73

	; Wait for recv

    74

		lds			r0, UCSR0A

    75

		sbrs		r0, RXC0

    76

		rjmp		Serial_Recv

    77

    78

	; Copy byte from buffer

    79

		lds			r16, UDR0

    80

    81

	; Done

    82

		ret

    83

    84

;; Write nul-terminated string from program mem to serial port

    85

; Input string in Z

    86

Serial_pprint:

    87

	; Load byte to r16

    88

		lpm			r16, Z+

    89

    90

	; Quit if nul

    91

		tst			r16

    92

		breq		_serial_pprint_end

    93

    94

	; Write it

    95

		rcall		Serial_Send

    96

    97

	; Continue

    98

		rjmp		Serial_pprint

    99

   100

_serial_pprint_end:

   101

		ret

   102

   103

;; Write nul-terminated string from sram and \r\n to serial port

   104

; Input string in Z

   105

Serial_sprintln:

   106

	; Load byte to r16

   107

		ld			r16, Z+

   108

   109

	; Quit if nul

   110

		tst			r16

   111

		breq		_serial_sprintln_end

   112

   113

	; Write it

   114

		rcall		Serial_Send

   115

   116

	; Continue

   117

		rjmp		Serial_sprintln

   118

   119

_serial_sprintln_end:

   120

	; \r\n

   121

		ldi			r16, 13

   122

		rcall		Serial_Send

   123

		ldi			r16, 10

   124

		rcall		Serial_Send

   125

   126

	; Done

   127

		ret

   128

   129

;; Write char to serial port

   130

; Input byte in r16

   131

Serial_bprint:

   132

		; ASCII offset for '0'

   133

		ldi			r17, 48

   134

		mov			r4, r17	

   135

   136

	; Convert

   137

		ldi			r17, 100

   138

		call		div8u

   139

		add			r16, r4

   140

		rcall		Serial_Send

   141

		mov			r16, r15

   142

   143

		ldi			r17, 10

   144

		call		div8u

   145

		add			r16, r4

   146

		rcall		Serial_Send

   147

		mov			r16, r15

   148

   149

		add			r16, r4

   150

		rcall		Serial_Send

   151

   152

	ret

   153

   154

;; Program

   155

message:	.db "Hello World", 13, 10, 0

   156

   157

Main:

   158

; Initialization

   159

	; Stack

   160

		poke		[SPL, r16:r17, RAMEND]

   161

   162

    ; Enable interrupts

   163

        sei

   164

   165

	; Init

   166

		rcall		Serial_Init

   167

   168

; Main program

   169

		ldi			ZH, high(message * 2)

   170

		ldi			ZL, low(message * 2)

   171

   172

		rcall		Serial_pprint

   173

   174

; Echo out

   175

		sbi			DDRB, PORTB5

   176

		ldi			r20, 0

   177

		ldi			r21, 0

   178

		ldi			r22, 0

   179

   180

		; pointer to memory buffer

   181

		ldi			XH, high(buffer)

   182

		ldi			XL, low(buffer)

   183

   184

		st			X, r22		; '\0'

   185

   186

Main_Echo:

   187

		; blink LED

   188

		out			PORTB, r20

   189

   190

		; read

   191

		rcall		Serial_Recv

   192

		push		r16

   193

   194

		; display

   195

		rcall		Serial_bprint

   196

		ldi			r16, 32

   197

		rcall		Serial_Send

   198

   199

		pop			r16

   200

   201

		; test for control chars

   202

		cpi			r16, 127	; DEL

   203

		breq		backspace

   204

   205

		cpi			r16, 13		; '\r'

   206

		breq		cr

   207

   208

		cpi			r16, 10		; '\n'

   209

		breq		Main_Echo	; ignore

   210

   211

		rjmp		char		; buffer char

   212

   213

; Erase last char

   214

backspace:

   215

		; ignore if already at zero

   216

		cpi			XL, low(buffer)

   217

		ldi			r23, high(buffer)

   218

		cpc			XH, r23

   219

		breq		echo

   220

   221

		; use pre-decrement to store nul

   222

		st			-X, r22		; '\0'

   223

   224

		rjmp		echo

   225

   226

; Erase line

   227

cr:

   228

		; seek to start

   229

		ldi			XH, high(buffer)

   230

		ldi			XL, low(buffer)

   231

   232

		; store nul

   233

		st			X, r22		; '\0'

   234

   235

		rjmp 		echo

   236

   237

char:

   238

		; buffer char

   239

		st			X+, r16

   240

		st			X, r22		; '\0'

   241

   242

echo:		

   243

		; running counter

   244

		inc			r21

   245

		mov			r16, r21

   246

		rcall		Serial_bprint

   247

   248

		; ' '

   249

		ldi			r16, 32

   250

		rcall		Serial_Send

   251

   252

		; length

   253

		mov			r16, XL

   254

		rcall		Serial_bprint

   255

   256

		; ' '

   257

		ldi			r16, 32

   258

		rcall		Serial_Send

   259

   260

		; output buffer

   261

		ldi			ZH, high(buffer)

   262

		ldi			ZL, low(buffer)

   263

		rcall		Serial_sprintln

   264

   265

		; toggle

   266

		com			r20

   267

   268

		; continue

   269

		rjmp		Main_Echo

   270