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225 lines
6.5 KiB
225 lines
6.5 KiB
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uart_stream.elf: file format elf32-avr
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Disassembly of section .text:
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00000000 <__vectors>:
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0: 33 c0 rjmp .+102 ; 0x68 <__ctors_end>
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2: 00 00 nop
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4: 4c c0 rjmp .+152 ; 0x9e <__bad_interrupt>
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6: 00 00 nop
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8: 4a c0 rjmp .+148 ; 0x9e <__bad_interrupt>
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a: 00 00 nop
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c: 48 c0 rjmp .+144 ; 0x9e <__bad_interrupt>
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e: 00 00 nop
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10: 46 c0 rjmp .+140 ; 0x9e <__bad_interrupt>
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12: 00 00 nop
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14: 44 c0 rjmp .+136 ; 0x9e <__bad_interrupt>
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16: 00 00 nop
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18: 42 c0 rjmp .+132 ; 0x9e <__bad_interrupt>
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1a: 00 00 nop
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1c: 40 c0 rjmp .+128 ; 0x9e <__bad_interrupt>
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1e: 00 00 nop
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20: 3e c0 rjmp .+124 ; 0x9e <__bad_interrupt>
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22: 00 00 nop
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24: 3c c0 rjmp .+120 ; 0x9e <__bad_interrupt>
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26: 00 00 nop
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28: 3a c0 rjmp .+116 ; 0x9e <__bad_interrupt>
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2a: 00 00 nop
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2c: 38 c0 rjmp .+112 ; 0x9e <__bad_interrupt>
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2e: 00 00 nop
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30: 36 c0 rjmp .+108 ; 0x9e <__bad_interrupt>
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32: 00 00 nop
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34: 34 c0 rjmp .+104 ; 0x9e <__bad_interrupt>
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36: 00 00 nop
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38: 32 c0 rjmp .+100 ; 0x9e <__bad_interrupt>
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3a: 00 00 nop
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3c: 30 c0 rjmp .+96 ; 0x9e <__bad_interrupt>
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3e: 00 00 nop
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40: 2e c0 rjmp .+92 ; 0x9e <__bad_interrupt>
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42: 00 00 nop
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44: 2c c0 rjmp .+88 ; 0x9e <__bad_interrupt>
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46: 00 00 nop
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48: 2a c0 rjmp .+84 ; 0x9e <__bad_interrupt>
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4a: 00 00 nop
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4c: 28 c0 rjmp .+80 ; 0x9e <__bad_interrupt>
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4e: 00 00 nop
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50: 26 c0 rjmp .+76 ; 0x9e <__bad_interrupt>
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52: 00 00 nop
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54: 24 c0 rjmp .+72 ; 0x9e <__bad_interrupt>
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56: 00 00 nop
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58: 22 c0 rjmp .+68 ; 0x9e <__bad_interrupt>
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5a: 00 00 nop
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5c: 20 c0 rjmp .+64 ; 0x9e <__bad_interrupt>
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5e: 00 00 nop
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60: 1e c0 rjmp .+60 ; 0x9e <__bad_interrupt>
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62: 00 00 nop
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64: 1c c0 rjmp .+56 ; 0x9e <__bad_interrupt>
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...
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00000068 <__ctors_end>:
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68: 11 24 eor r1, r1
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6a: 1f be out 0x3f, r1 ; 63
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6c: cf ef ldi r28, 0xFF ; 255
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6e: d8 e0 ldi r29, 0x08 ; 8
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70: de bf out 0x3e, r29 ; 62
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72: cd bf out 0x3d, r28 ; 61
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00000074 <__do_copy_data>:
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74: 11 e0 ldi r17, 0x01 ; 1
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76: a0 e0 ldi r26, 0x00 ; 0
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78: b1 e0 ldi r27, 0x01 ; 1
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7a: ee e2 ldi r30, 0x2E ; 46
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7c: f1 e0 ldi r31, 0x01 ; 1
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7e: 02 c0 rjmp .+4 ; 0x84 <__do_copy_data+0x10>
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80: 05 90 lpm r0, Z+
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82: 0d 92 st X+, r0
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84: a6 30 cpi r26, 0x06 ; 6
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86: b1 07 cpc r27, r17
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88: d9 f7 brne .-10 ; 0x80 <__do_copy_data+0xc>
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0000008a <__do_clear_bss>:
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8a: 11 e0 ldi r17, 0x01 ; 1
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8c: a6 e0 ldi r26, 0x06 ; 6
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8e: b1 e0 ldi r27, 0x01 ; 1
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90: 01 c0 rjmp .+2 ; 0x94 <.do_clear_bss_start>
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00000092 <.do_clear_bss_loop>:
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92: 1d 92 st X+, r1
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00000094 <.do_clear_bss_start>:
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94: ac 30 cpi r26, 0x0C ; 12
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96: b1 07 cpc r27, r17
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98: e1 f7 brne .-8 ; 0x92 <.do_clear_bss_loop>
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9a: 02 d0 rcall .+4 ; 0xa0 <main>
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9c: 46 c0 rjmp .+140 ; 0x12a <_exit>
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0000009e <__bad_interrupt>:
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9e: b0 cf rjmp .-160 ; 0x0 <__vectors>
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000000a0 <main>:
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#include "lib/stream.h"
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void main()
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{
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// Enable UART with baud rate 9600
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uart_init(9600);
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a0: 87 e6 ldi r24, 0x67 ; 103
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a2: 90 e0 ldi r25, 0x00 ; 0
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a4: 16 d0 rcall .+44 ; 0xd2 <_uart_init_do>
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a6: 60 e0 ldi r22, 0x00 ; 0
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put_str(uart, "hello");
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a8: 71 e0 ldi r23, 0x01 ; 1
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aa: 80 91 0a 01 lds r24, 0x010A
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ae: 90 91 0b 01 lds r25, 0x010B
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b2: 28 d0 rcall .+80 ; 0x104 <put_str>
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b4: ff cf rjmp .-2 ; 0xb4 <main+0x14>
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000000b6 <uart_tx>:
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/** Send byte over UART */
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void uart_tx(uint8_t data)
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{
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// Wait for transmit buffer
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while (!uart_tx_ready());
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b6: 90 91 c0 00 lds r25, 0x00C0
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ba: 95 ff sbrs r25, 5
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bc: fc cf rjmp .-8 ; 0xb6 <uart_tx>
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// send it
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UDR0 = data;
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be: 80 93 c6 00 sts 0x00C6, r24
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c2: 08 95 ret
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000000c4 <uart_rx>:
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/** Receive one byte over UART */
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uint8_t uart_rx()
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{
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// Wait for data to be received
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while (!uart_rx_ready());
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c4: 80 91 c0 00 lds r24, 0x00C0
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c8: 87 ff sbrs r24, 7
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ca: fc cf rjmp .-8 ; 0xc4 <uart_rx>
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// Get and return received data from buffer
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return UDR0;
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cc: 80 91 c6 00 lds r24, 0x00C6
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}
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d0: 08 95 ret
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000000d2 <_uart_init_do>:
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STREAM* uart;
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inline void _uart_init_do(uint16_t ubrr) {
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/*Set baud rate */
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UBRR0H = (uint8_t) (ubrr >> 8);
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d2: 90 93 c5 00 sts 0x00C5, r25
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UBRR0L = (uint8_t) ubrr;
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d6: 80 93 c4 00 sts 0x00C4, r24
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// Enable Rx and Tx
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UCSR0B = (1 << RXEN0) | (1 << TXEN0);
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da: 88 e1 ldi r24, 0x18 ; 24
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dc: 80 93 c1 00 sts 0x00C1, r24
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// 8-bit data, 1 stop bit
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UCSR0C = (0b11 << UCSZ00);
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e0: 86 e0 ldi r24, 0x06 ; 6
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e2: 80 93 c2 00 sts 0x00C2, r24
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uart_singleton.tx = &uart_tx;
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e6: e6 e0 ldi r30, 0x06 ; 6
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e8: f1 e0 ldi r31, 0x01 ; 1
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ea: 8b e5 ldi r24, 0x5B ; 91
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ec: 90 e0 ldi r25, 0x00 ; 0
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ee: 91 83 std Z+1, r25 ; 0x01
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f0: 80 83 st Z, r24
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uart_singleton.rx = &uart_rx;
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f2: 82 e6 ldi r24, 0x62 ; 98
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f4: 90 e0 ldi r25, 0x00 ; 0
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f6: 93 83 std Z+3, r25 ; 0x03
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f8: 82 83 std Z+2, r24 ; 0x02
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uart = &uart_singleton;
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fa: f0 93 0b 01 sts 0x010B, r31
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fe: e0 93 0a 01 sts 0x010A, r30
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102: 08 95 ret
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00000104 <put_str>:
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char tmpstr[20]; // buffer for number rendering
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void put_str(const STREAM *p, char* str)
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{
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104: 0f 93 push r16
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106: 1f 93 push r17
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108: cf 93 push r28
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10a: df 93 push r29
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10c: 8c 01 movw r16, r24
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10e: eb 01 movw r28, r22
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char c;
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while ((c = *str++))
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110: 89 91 ld r24, Y+
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112: 88 23 and r24, r24
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114: 29 f0 breq .+10 ; 0x120 <put_str+0x1c>
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p->tx(c);
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116: d8 01 movw r26, r16
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118: ed 91 ld r30, X+
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11a: fc 91 ld r31, X
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11c: 09 95 icall
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11e: f8 cf rjmp .-16 ; 0x110 <put_str+0xc>
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}
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120: df 91 pop r29
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122: cf 91 pop r28
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124: 1f 91 pop r17
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126: 0f 91 pop r16
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128: 08 95 ret
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0000012a <_exit>:
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12a: f8 94 cli
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0000012c <__stop_program>:
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12c: ff cf rjmp .-2 ; 0x12c <__stop_program>
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