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Arduino/hardware/arduino/bootloaders/optiboot/optiboot_pro_20mhz.lst

521 lines
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optiboot_pro_20mhz.elf: file format elf32-avr
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000001ec 00003e00 00003e00 00000054 2**1
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .debug_aranges 00000028 00000000 00000000 00000240 2**0
CONTENTS, READONLY, DEBUGGING
2 .debug_pubnames 0000006a 00000000 00000000 00000268 2**0
CONTENTS, READONLY, DEBUGGING
3 .debug_info 00000269 00000000 00000000 000002d2 2**0
CONTENTS, READONLY, DEBUGGING
4 .debug_abbrev 00000196 00000000 00000000 0000053b 2**0
CONTENTS, READONLY, DEBUGGING
5 .debug_line 000003d3 00000000 00000000 000006d1 2**0
CONTENTS, READONLY, DEBUGGING
6 .debug_frame 00000090 00000000 00000000 00000aa4 2**2
CONTENTS, READONLY, DEBUGGING
7 .debug_str 00000135 00000000 00000000 00000b34 2**0
CONTENTS, READONLY, DEBUGGING
8 .debug_loc 000001d1 00000000 00000000 00000c69 2**0
CONTENTS, READONLY, DEBUGGING
9 .debug_ranges 00000068 00000000 00000000 00000e3a 2**0
CONTENTS, READONLY, DEBUGGING
Disassembly of section .text:
00003e00 <main>:
#ifdef VIRTUAL_BOOT_PARTITION
#define rstVect (*(uint16_t*)(0x204))
#define wdtVect (*(uint16_t*)(0x206))
#endif
/* main program starts here */
int main(void) {
3e00: 85 e0 ldi r24, 0x05 ; 5
3e02: 80 93 81 00 sts 0x0081, r24
#if LED_START_FLASHES > 0
// Set up Timer 1 for timeout counter
TCCR1B = _BV(CS12) | _BV(CS10); // div 1024
#endif
#ifndef SOFT_UART
UCSR0A = _BV(U2X0); //Double speed mode USART0
3e06: 82 e0 ldi r24, 0x02 ; 2
3e08: 80 93 c0 00 sts 0x00C0, r24
UCSR0B = _BV(RXEN0) | _BV(TXEN0);
3e0c: 88 e1 ldi r24, 0x18 ; 24
3e0e: 80 93 c1 00 sts 0x00C1, r24
UCSR0C = _BV(UCSZ00) | _BV(UCSZ01);
3e12: 86 e0 ldi r24, 0x06 ; 6
3e14: 80 93 c2 00 sts 0x00C2, r24
UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
3e18: 85 e1 ldi r24, 0x15 ; 21
3e1a: 80 93 c4 00 sts 0x00C4, r24
#endif
// Adaboot no-wait mod
ch = MCUSR;
3e1e: 84 b7 in r24, 0x34 ; 52
MCUSR = 0;
3e20: 14 be out 0x34, r1 ; 52
if (!(ch & _BV(EXTRF))) appStart();
3e22: 81 ff sbrs r24, 1
3e24: d0 d0 rcall .+416 ; 0x3fc6 <appStart>
// Set up watchdog to trigger after 500ms
watchdogConfig(WATCHDOG_500MS);
3e26: 8d e0 ldi r24, 0x0D ; 13
3e28: c8 d0 rcall .+400 ; 0x3fba <watchdogConfig>
/* Set LED pin as output */
LED_DDR |= _BV(LED);
3e2a: 25 9a sbi 0x04, 5 ; 4
3e2c: 86 e0 ldi r24, 0x06 ; 6
}
#if LED_START_FLASHES > 0
void flash_led(uint8_t count) {
do {
TCNT1 = -(F_CPU/(1024*16));
3e2e: 2c e3 ldi r18, 0x3C ; 60
3e30: 3b ef ldi r19, 0xFB ; 251
TIFR1 = _BV(TOV1);
3e32: 91 e0 ldi r25, 0x01 ; 1
}
#if LED_START_FLASHES > 0
void flash_led(uint8_t count) {
do {
TCNT1 = -(F_CPU/(1024*16));
3e34: 30 93 85 00 sts 0x0085, r19
3e38: 20 93 84 00 sts 0x0084, r18
TIFR1 = _BV(TOV1);
3e3c: 96 bb out 0x16, r25 ; 22
while(!(TIFR1 & _BV(TOV1)));
3e3e: b0 9b sbis 0x16, 0 ; 22
3e40: fe cf rjmp .-4 ; 0x3e3e <main+0x3e>
LED_PIN |= _BV(LED);
3e42: 1d 9a sbi 0x03, 5 ; 3
return getch();
}
// Watchdog functions. These are only safe with interrupts turned off.
void watchdogReset() {
__asm__ __volatile__ (
3e44: a8 95 wdr
TCNT1 = -(F_CPU/(1024*16));
TIFR1 = _BV(TOV1);
while(!(TIFR1 & _BV(TOV1)));
LED_PIN |= _BV(LED);
watchdogReset();
} while (--count);
3e46: 81 50 subi r24, 0x01 ; 1
3e48: a9 f7 brne .-22 ; 0x3e34 <main+0x34>
/* get character from UART */
ch = getch();
if(ch == STK_GET_PARAMETER) {
// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
getNch(1);
3e4a: dd 24 eor r13, r13
3e4c: d3 94 inc r13
boot_page_fill((uint16_t)(void*)addrPtr,a);
addrPtr += 2;
} while (--ch);
// Write from programming buffer
boot_page_write((uint16_t)(void*)address);
3e4e: a5 e0 ldi r26, 0x05 ; 5
3e50: ea 2e mov r14, r26
boot_spm_busy_wait();
#if defined(RWWSRE)
// Reenable read access to flash
boot_rww_enable();
3e52: f1 e1 ldi r31, 0x11 ; 17
3e54: ff 2e mov r15, r31
#endif
/* Forever loop */
for (;;) {
/* get character from UART */
ch = getch();
3e56: a4 d0 rcall .+328 ; 0x3fa0 <getch>
if(ch == STK_GET_PARAMETER) {
3e58: 81 34 cpi r24, 0x41 ; 65
3e5a: 21 f4 brne .+8 ; 0x3e64 <main+0x64>
// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
getNch(1);
3e5c: 81 e0 ldi r24, 0x01 ; 1
3e5e: be d0 rcall .+380 ; 0x3fdc <verifySpace+0xc>
putch(0x03);
3e60: 83 e0 ldi r24, 0x03 ; 3
3e62: 24 c0 rjmp .+72 ; 0x3eac <main+0xac>
}
else if(ch == STK_SET_DEVICE) {
3e64: 82 34 cpi r24, 0x42 ; 66
3e66: 11 f4 brne .+4 ; 0x3e6c <main+0x6c>
// SET DEVICE is ignored
getNch(20);
3e68: 84 e1 ldi r24, 0x14 ; 20
3e6a: 03 c0 rjmp .+6 ; 0x3e72 <main+0x72>
}
else if(ch == STK_SET_DEVICE_EXT) {
3e6c: 85 34 cpi r24, 0x45 ; 69
3e6e: 19 f4 brne .+6 ; 0x3e76 <main+0x76>
// SET DEVICE EXT is ignored
getNch(5);
3e70: 85 e0 ldi r24, 0x05 ; 5
3e72: b4 d0 rcall .+360 ; 0x3fdc <verifySpace+0xc>
3e74: 8a c0 rjmp .+276 ; 0x3f8a <main+0x18a>
}
else if(ch == STK_LOAD_ADDRESS) {
3e76: 85 35 cpi r24, 0x55 ; 85
3e78: a1 f4 brne .+40 ; 0x3ea2 <main+0xa2>
// LOAD ADDRESS
address = getch();
3e7a: 92 d0 rcall .+292 ; 0x3fa0 <getch>
3e7c: 08 2f mov r16, r24
3e7e: 10 e0 ldi r17, 0x00 ; 0
3e80: 10 93 01 02 sts 0x0201, r17
3e84: 00 93 00 02 sts 0x0200, r16
address = (address & 0xff) | (getch() << 8);
3e88: 8b d0 rcall .+278 ; 0x3fa0 <getch>
3e8a: 90 e0 ldi r25, 0x00 ; 0
3e8c: 98 2f mov r25, r24
3e8e: 88 27 eor r24, r24
3e90: 80 2b or r24, r16
3e92: 91 2b or r25, r17
address += address; // Convert from word address to byte address
3e94: 88 0f add r24, r24
3e96: 99 1f adc r25, r25
3e98: 90 93 01 02 sts 0x0201, r25
3e9c: 80 93 00 02 sts 0x0200, r24
3ea0: 73 c0 rjmp .+230 ; 0x3f88 <main+0x188>
verifySpace();
}
else if(ch == STK_UNIVERSAL) {
3ea2: 86 35 cpi r24, 0x56 ; 86
3ea4: 29 f4 brne .+10 ; 0x3eb0 <main+0xb0>
// UNIVERSAL command is ignored
getNch(4);
3ea6: 84 e0 ldi r24, 0x04 ; 4
3ea8: 99 d0 rcall .+306 ; 0x3fdc <verifySpace+0xc>
putch(0x00);
3eaa: 80 e0 ldi r24, 0x00 ; 0
3eac: 71 d0 rcall .+226 ; 0x3f90 <putch>
3eae: 6d c0 rjmp .+218 ; 0x3f8a <main+0x18a>
}
/* Write memory, length is big endian and is in bytes */
else if(ch == STK_PROG_PAGE) {
3eb0: 84 36 cpi r24, 0x64 ; 100
3eb2: 09 f0 breq .+2 ; 0x3eb6 <main+0xb6>
3eb4: 43 c0 rjmp .+134 ; 0x3f3c <main+0x13c>
// PROGRAM PAGE - we support flash programming only, not EEPROM
uint8_t *bufPtr;
uint16_t addrPtr;
getLen();
3eb6: 7c d0 rcall .+248 ; 0x3fb0 <getLen>
// Immediately start page erase - this will 4.5ms
boot_page_erase((uint16_t)(void*)address);
3eb8: e0 91 00 02 lds r30, 0x0200
3ebc: f0 91 01 02 lds r31, 0x0201
3ec0: 83 e0 ldi r24, 0x03 ; 3
3ec2: 80 93 57 00 sts 0x0057, r24
3ec6: e8 95 spm
3ec8: c0 e0 ldi r28, 0x00 ; 0
3eca: d1 e0 ldi r29, 0x01 ; 1
// While that is going on, read in page contents
bufPtr = buff;
do *bufPtr++ = getch();
3ecc: 69 d0 rcall .+210 ; 0x3fa0 <getch>
3ece: 89 93 st Y+, r24
while (--length);
3ed0: 80 91 02 02 lds r24, 0x0202
3ed4: 81 50 subi r24, 0x01 ; 1
3ed6: 80 93 02 02 sts 0x0202, r24
3eda: 88 23 and r24, r24
3edc: b9 f7 brne .-18 ; 0x3ecc <main+0xcc>
// Read command terminator, start reply
verifySpace();
3ede: 78 d0 rcall .+240 ; 0x3fd0 <verifySpace>
// If only a partial page is to be programmed, the erase might not be complete.
// So check that here
boot_spm_busy_wait();
3ee0: 07 b6 in r0, 0x37 ; 55
3ee2: 00 fc sbrc r0, 0
3ee4: fd cf rjmp .-6 ; 0x3ee0 <main+0xe0>
}
#endif
// Copy buffer into programming buffer
bufPtr = buff;
addrPtr = (uint16_t)(void*)address;
3ee6: 40 91 00 02 lds r20, 0x0200
3eea: 50 91 01 02 lds r21, 0x0201
3eee: a0 e0 ldi r26, 0x00 ; 0
3ef0: b1 e0 ldi r27, 0x01 ; 1
ch = SPM_PAGESIZE / 2;
do {
uint16_t a;
a = *bufPtr++;
3ef2: 2c 91 ld r18, X
3ef4: 30 e0 ldi r19, 0x00 ; 0
a |= (*bufPtr++) << 8;
3ef6: 11 96 adiw r26, 0x01 ; 1
3ef8: 8c 91 ld r24, X
3efa: 11 97 sbiw r26, 0x01 ; 1
3efc: 90 e0 ldi r25, 0x00 ; 0
3efe: 98 2f mov r25, r24
3f00: 88 27 eor r24, r24
3f02: 82 2b or r24, r18
3f04: 93 2b or r25, r19
#ifdef VIRTUAL_BOOT_PARTITION
#define rstVect (*(uint16_t*)(0x204))
#define wdtVect (*(uint16_t*)(0x206))
#endif
/* main program starts here */
int main(void) {
3f06: 12 96 adiw r26, 0x02 ; 2
ch = SPM_PAGESIZE / 2;
do {
uint16_t a;
a = *bufPtr++;
a |= (*bufPtr++) << 8;
boot_page_fill((uint16_t)(void*)addrPtr,a);
3f08: fa 01 movw r30, r20
3f0a: 0c 01 movw r0, r24
3f0c: d0 92 57 00 sts 0x0057, r13
3f10: e8 95 spm
3f12: 11 24 eor r1, r1
addrPtr += 2;
3f14: 4e 5f subi r20, 0xFE ; 254
3f16: 5f 4f sbci r21, 0xFF ; 255
} while (--ch);
3f18: f1 e0 ldi r31, 0x01 ; 1
3f1a: a0 38 cpi r26, 0x80 ; 128
3f1c: bf 07 cpc r27, r31
3f1e: 49 f7 brne .-46 ; 0x3ef2 <main+0xf2>
// Write from programming buffer
boot_page_write((uint16_t)(void*)address);
3f20: e0 91 00 02 lds r30, 0x0200
3f24: f0 91 01 02 lds r31, 0x0201
3f28: e0 92 57 00 sts 0x0057, r14
3f2c: e8 95 spm
boot_spm_busy_wait();
3f2e: 07 b6 in r0, 0x37 ; 55
3f30: 00 fc sbrc r0, 0
3f32: fd cf rjmp .-6 ; 0x3f2e <main+0x12e>
#if defined(RWWSRE)
// Reenable read access to flash
boot_rww_enable();
3f34: f0 92 57 00 sts 0x0057, r15
3f38: e8 95 spm
3f3a: 27 c0 rjmp .+78 ; 0x3f8a <main+0x18a>
#endif
}
/* Read memory block mode, length is big endian. */
else if(ch == STK_READ_PAGE) {
3f3c: 84 37 cpi r24, 0x74 ; 116
3f3e: b9 f4 brne .+46 ; 0x3f6e <main+0x16e>
// READ PAGE - we only read flash
getLen();
3f40: 37 d0 rcall .+110 ; 0x3fb0 <getLen>
verifySpace();
3f42: 46 d0 rcall .+140 ; 0x3fd0 <verifySpace>
else ch = pgm_read_byte_near(address);
address++;
putch(ch);
} while (--length);
#else
do putch(pgm_read_byte_near(address++));
3f44: e0 91 00 02 lds r30, 0x0200
3f48: f0 91 01 02 lds r31, 0x0201
3f4c: 31 96 adiw r30, 0x01 ; 1
3f4e: f0 93 01 02 sts 0x0201, r31
3f52: e0 93 00 02 sts 0x0200, r30
3f56: 31 97 sbiw r30, 0x01 ; 1
3f58: e4 91 lpm r30, Z+
3f5a: 8e 2f mov r24, r30
3f5c: 19 d0 rcall .+50 ; 0x3f90 <putch>
while (--length);
3f5e: 80 91 02 02 lds r24, 0x0202
3f62: 81 50 subi r24, 0x01 ; 1
3f64: 80 93 02 02 sts 0x0202, r24
3f68: 88 23 and r24, r24
3f6a: 61 f7 brne .-40 ; 0x3f44 <main+0x144>
3f6c: 0e c0 rjmp .+28 ; 0x3f8a <main+0x18a>
#endif
}
/* Get device signature bytes */
else if(ch == STK_READ_SIGN) {
3f6e: 85 37 cpi r24, 0x75 ; 117
3f70: 39 f4 brne .+14 ; 0x3f80 <main+0x180>
// READ SIGN - return what Avrdude wants to hear
verifySpace();
3f72: 2e d0 rcall .+92 ; 0x3fd0 <verifySpace>
putch(SIGNATURE_0);
3f74: 8e e1 ldi r24, 0x1E ; 30
3f76: 0c d0 rcall .+24 ; 0x3f90 <putch>
putch(SIGNATURE_1);
3f78: 84 e9 ldi r24, 0x94 ; 148
3f7a: 0a d0 rcall .+20 ; 0x3f90 <putch>
putch(SIGNATURE_2);
3f7c: 86 e0 ldi r24, 0x06 ; 6
3f7e: 96 cf rjmp .-212 ; 0x3eac <main+0xac>
}
else if (ch == 'Q') {
3f80: 81 35 cpi r24, 0x51 ; 81
3f82: 11 f4 brne .+4 ; 0x3f88 <main+0x188>
// Adaboot no-wait mod
watchdogConfig(WATCHDOG_16MS);
3f84: 88 e0 ldi r24, 0x08 ; 8
3f86: 19 d0 rcall .+50 ; 0x3fba <watchdogConfig>
verifySpace();
}
else {
// This covers the response to commands like STK_ENTER_PROGMODE
verifySpace();
3f88: 23 d0 rcall .+70 ; 0x3fd0 <verifySpace>
}
putch(STK_OK);
3f8a: 80 e1 ldi r24, 0x10 ; 16
3f8c: 01 d0 rcall .+2 ; 0x3f90 <putch>
3f8e: 63 cf rjmp .-314 ; 0x3e56 <main+0x56>
00003f90 <putch>:
}
}
void putch(char ch) {
3f90: 98 2f mov r25, r24
#ifndef SOFT_UART
while (!(UCSR0A & _BV(UDRE0)));
3f92: 80 91 c0 00 lds r24, 0x00C0
3f96: 85 ff sbrs r24, 5
3f98: fc cf rjmp .-8 ; 0x3f92 <putch+0x2>
UDR0 = ch;
3f9a: 90 93 c6 00 sts 0x00C6, r25
[uartBit] "I" (UART_TX_BIT)
:
"r25"
);
#endif
}
3f9e: 08 95 ret
00003fa0 <getch>:
return getch();
}
// Watchdog functions. These are only safe with interrupts turned off.
void watchdogReset() {
__asm__ __volatile__ (
3fa0: a8 95 wdr
[uartBit] "I" (UART_RX_BIT)
:
"r25"
);
#else
while(!(UCSR0A & _BV(RXC0)));
3fa2: 80 91 c0 00 lds r24, 0x00C0
3fa6: 87 ff sbrs r24, 7
3fa8: fc cf rjmp .-8 ; 0x3fa2 <getch+0x2>
ch = UDR0;
3faa: 80 91 c6 00 lds r24, 0x00C6
#ifdef LED_DATA_FLASH
LED_PIN |= _BV(LED);
#endif
return ch;
}
3fae: 08 95 ret
00003fb0 <getLen>:
} while (--count);
}
#endif
uint8_t getLen() {
getch();
3fb0: f7 df rcall .-18 ; 0x3fa0 <getch>
length = getch();
3fb2: f6 df rcall .-20 ; 0x3fa0 <getch>
3fb4: 80 93 02 02 sts 0x0202, r24
return getch();
}
3fb8: f3 cf rjmp .-26 ; 0x3fa0 <getch>
00003fba <watchdogConfig>:
"wdr\n"
);
}
void watchdogConfig(uint8_t x) {
WDTCSR = _BV(WDCE) | _BV(WDE);
3fba: e0 e6 ldi r30, 0x60 ; 96
3fbc: f0 e0 ldi r31, 0x00 ; 0
3fbe: 98 e1 ldi r25, 0x18 ; 24
3fc0: 90 83 st Z, r25
WDTCSR = x;
3fc2: 80 83 st Z, r24
}
3fc4: 08 95 ret
00003fc6 <appStart>:
void appStart() {
watchdogConfig(WATCHDOG_OFF);
3fc6: 80 e0 ldi r24, 0x00 ; 0
3fc8: f8 df rcall .-16 ; 0x3fba <watchdogConfig>
__asm__ __volatile__ (
3fca: ee 27 eor r30, r30
3fcc: ff 27 eor r31, r31
3fce: 09 94 ijmp
00003fd0 <verifySpace>:
do getch(); while (--count);
verifySpace();
}
void verifySpace() {
if (getch() != CRC_EOP) appStart();
3fd0: e7 df rcall .-50 ; 0x3fa0 <getch>
3fd2: 80 32 cpi r24, 0x20 ; 32
3fd4: 09 f0 breq .+2 ; 0x3fd8 <verifySpace+0x8>
3fd6: f7 df rcall .-18 ; 0x3fc6 <appStart>
putch(STK_INSYNC);
3fd8: 84 e1 ldi r24, 0x14 ; 20
}
3fda: da cf rjmp .-76 ; 0x3f90 <putch>
::[count] "M" (UART_B_VALUE)
);
}
#endif
void getNch(uint8_t count) {
3fdc: 1f 93 push r17
3fde: 18 2f mov r17, r24
00003fe0 <getNch>:
do getch(); while (--count);
3fe0: df df rcall .-66 ; 0x3fa0 <getch>
3fe2: 11 50 subi r17, 0x01 ; 1
3fe4: e9 f7 brne .-6 ; 0x3fe0 <getNch>
verifySpace();
3fe6: f4 df rcall .-24 ; 0x3fd0 <verifySpace>
}
3fe8: 1f 91 pop r17
3fea: 08 95 ret
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