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Arduino/hardware/arduino/bootloaders/optiboot/optiboot_pro_8MHz.lst

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optiboot_pro_8MHz.elf: file format elf32-avr
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 000001fc 00003e00 00003e00 00000054 2**1
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .debug_aranges 00000028 00000000 00000000 00000250 2**0
CONTENTS, READONLY, DEBUGGING
2 .debug_pubnames 00000078 00000000 00000000 00000278 2**0
CONTENTS, READONLY, DEBUGGING
3 .debug_info 00000277 00000000 00000000 000002f0 2**0
CONTENTS, READONLY, DEBUGGING
4 .debug_abbrev 00000194 00000000 00000000 00000567 2**0
CONTENTS, READONLY, DEBUGGING
5 .debug_line 000003bb 00000000 00000000 000006fb 2**0
CONTENTS, READONLY, DEBUGGING
6 .debug_frame 000000a0 00000000 00000000 00000ab8 2**2
CONTENTS, READONLY, DEBUGGING
7 .debug_str 0000013f 00000000 00000000 00000b58 2**0
CONTENTS, READONLY, DEBUGGING
8 .debug_loc 000001a0 00000000 00000000 00000c97 2**0
CONTENTS, READONLY, DEBUGGING
9 .debug_ranges 00000070 00000000 00000000 00000e37 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
UCSR0C = _BV(UCSZ00) | _BV(UCSZ01);
UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
#endif
// Adaboot no-wait mod
ch = MCUSR;
3e06: 84 b7 in r24, 0x34 ; 52
MCUSR = 0;
3e08: 14 be out 0x34, r1 ; 52
if (!(ch & _BV(EXTRF))) appStart();
3e0a: 81 ff sbrs r24, 1
3e0c: e4 d0 rcall .+456 ; 0x3fd6 <appStart>
// Set up watchdog to trigger after 500ms
watchdogConfig(WATCHDOG_500MS);
3e0e: 8d e0 ldi r24, 0x0D ; 13
3e10: dc d0 rcall .+440 ; 0x3fca <watchdogConfig>
/* Set LED pin as output */
LED_DDR |= _BV(LED);
3e12: 25 9a sbi 0x04, 5 ; 4
#ifdef SOFT_UART
/* Set TX pin as output */
UART_DDR |= _BV(UART_TX_BIT);
3e14: 51 9a sbi 0x0a, 1 ; 10
3e16: 86 e0 ldi r24, 0x06 ; 6
}
#if LED_START_FLASHES > 0
void flash_led(uint8_t count) {
do {
TCNT1 = -(F_CPU/(1024*16));
3e18: 28 e1 ldi r18, 0x18 ; 24
3e1a: 3e ef ldi r19, 0xFE ; 254
TIFR1 = _BV(TOV1);
3e1c: 91 e0 ldi r25, 0x01 ; 1
}
#if LED_START_FLASHES > 0
void flash_led(uint8_t count) {
do {
TCNT1 = -(F_CPU/(1024*16));
3e1e: 30 93 85 00 sts 0x0085, r19
3e22: 20 93 84 00 sts 0x0084, r18
TIFR1 = _BV(TOV1);
3e26: 96 bb out 0x16, r25 ; 22
while(!(TIFR1 & _BV(TOV1)));
3e28: b0 9b sbis 0x16, 0 ; 22
3e2a: fe cf rjmp .-4 ; 0x3e28 <main+0x28>
LED_PIN |= _BV(LED);
3e2c: 1d 9a sbi 0x03, 5 ; 3
return getch();
}
// Watchdog functions. These are only safe with interrupts turned off.
void watchdogReset() {
__asm__ __volatile__ (
3e2e: a8 95 wdr
TCNT1 = -(F_CPU/(1024*16));
TIFR1 = _BV(TOV1);
while(!(TIFR1 & _BV(TOV1)));
LED_PIN |= _BV(LED);
watchdogReset();
} while (--count);
3e30: 81 50 subi r24, 0x01 ; 1
3e32: a9 f7 brne .-22 ; 0x3e1e <main+0x1e>
/* 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);
3e34: dd 24 eor r13, r13
3e36: 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);
3e38: a5 e0 ldi r26, 0x05 ; 5
3e3a: ea 2e mov r14, r26
boot_spm_busy_wait();
#if defined(RWWSRE)
// Reenable read access to flash
boot_rww_enable();
3e3c: f1 e1 ldi r31, 0x11 ; 17
3e3e: ff 2e mov r15, r31
#endif
/* Forever loop */
for (;;) {
/* get character from UART */
ch = getch();
3e40: ab d0 rcall .+342 ; 0x3f98 <getch>
if(ch == STK_GET_PARAMETER) {
3e42: 81 34 cpi r24, 0x41 ; 65
3e44: 21 f4 brne .+8 ; 0x3e4e <main+0x4e>
// GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
getNch(1);
3e46: 81 e0 ldi r24, 0x01 ; 1
3e48: d1 d0 rcall .+418 ; 0x3fec <verifySpace+0xc>
putch(0x03);
3e4a: 83 e0 ldi r24, 0x03 ; 3
3e4c: 24 c0 rjmp .+72 ; 0x3e96 <main+0x96>
}
else if(ch == STK_SET_DEVICE) {
3e4e: 82 34 cpi r24, 0x42 ; 66
3e50: 11 f4 brne .+4 ; 0x3e56 <main+0x56>
// SET DEVICE is ignored
getNch(20);
3e52: 84 e1 ldi r24, 0x14 ; 20
3e54: 03 c0 rjmp .+6 ; 0x3e5c <main+0x5c>
}
else if(ch == STK_SET_DEVICE_EXT) {
3e56: 85 34 cpi r24, 0x45 ; 69
3e58: 19 f4 brne .+6 ; 0x3e60 <main+0x60>
// SET DEVICE EXT is ignored
getNch(5);
3e5a: 85 e0 ldi r24, 0x05 ; 5
3e5c: c7 d0 rcall .+398 ; 0x3fec <verifySpace+0xc>
3e5e: 8a c0 rjmp .+276 ; 0x3f74 <main+0x174>
}
else if(ch == STK_LOAD_ADDRESS) {
3e60: 85 35 cpi r24, 0x55 ; 85
3e62: a1 f4 brne .+40 ; 0x3e8c <main+0x8c>
// LOAD ADDRESS
address = getch();
3e64: 99 d0 rcall .+306 ; 0x3f98 <getch>
3e66: 08 2f mov r16, r24
3e68: 10 e0 ldi r17, 0x00 ; 0
3e6a: 10 93 01 02 sts 0x0201, r17
3e6e: 00 93 00 02 sts 0x0200, r16
address = (address & 0xff) | (getch() << 8);
3e72: 92 d0 rcall .+292 ; 0x3f98 <getch>
3e74: 90 e0 ldi r25, 0x00 ; 0
3e76: 98 2f mov r25, r24
3e78: 88 27 eor r24, r24
3e7a: 80 2b or r24, r16
3e7c: 91 2b or r25, r17
address += address; // Convert from word address to byte address
3e7e: 88 0f add r24, r24
3e80: 99 1f adc r25, r25
3e82: 90 93 01 02 sts 0x0201, r25
3e86: 80 93 00 02 sts 0x0200, r24
3e8a: 73 c0 rjmp .+230 ; 0x3f72 <main+0x172>
verifySpace();
}
else if(ch == STK_UNIVERSAL) {
3e8c: 86 35 cpi r24, 0x56 ; 86
3e8e: 29 f4 brne .+10 ; 0x3e9a <main+0x9a>
// UNIVERSAL command is ignored
getNch(4);
3e90: 84 e0 ldi r24, 0x04 ; 4
3e92: ac d0 rcall .+344 ; 0x3fec <verifySpace+0xc>
putch(0x00);
3e94: 80 e0 ldi r24, 0x00 ; 0
3e96: 71 d0 rcall .+226 ; 0x3f7a <putch>
3e98: 6d c0 rjmp .+218 ; 0x3f74 <main+0x174>
}
/* Write memory, length is big endian and is in bytes */
else if(ch == STK_PROG_PAGE) {
3e9a: 84 36 cpi r24, 0x64 ; 100
3e9c: 09 f0 breq .+2 ; 0x3ea0 <main+0xa0>
3e9e: 43 c0 rjmp .+134 ; 0x3f26 <main+0x126>
// PROGRAM PAGE - we support flash programming only, not EEPROM
uint8_t *bufPtr;
uint16_t addrPtr;
getLen();
3ea0: 8f d0 rcall .+286 ; 0x3fc0 <getLen>
// Immediately start page erase - this will 4.5ms
boot_page_erase((uint16_t)(void*)address);
3ea2: e0 91 00 02 lds r30, 0x0200
3ea6: f0 91 01 02 lds r31, 0x0201
3eaa: 83 e0 ldi r24, 0x03 ; 3
3eac: 80 93 57 00 sts 0x0057, r24
3eb0: e8 95 spm
3eb2: c0 e0 ldi r28, 0x00 ; 0
3eb4: d1 e0 ldi r29, 0x01 ; 1
// While that is going on, read in page contents
bufPtr = buff;
do *bufPtr++ = getch();
3eb6: 70 d0 rcall .+224 ; 0x3f98 <getch>
3eb8: 89 93 st Y+, r24
while (--length);
3eba: 80 91 02 02 lds r24, 0x0202
3ebe: 81 50 subi r24, 0x01 ; 1
3ec0: 80 93 02 02 sts 0x0202, r24
3ec4: 88 23 and r24, r24
3ec6: b9 f7 brne .-18 ; 0x3eb6 <main+0xb6>
// Read command terminator, start reply
verifySpace();
3ec8: 8b d0 rcall .+278 ; 0x3fe0 <verifySpace>
// If only a partial page is to be programmed, the erase might not be complete.
// So check that here
boot_spm_busy_wait();
3eca: 07 b6 in r0, 0x37 ; 55
3ecc: 00 fc sbrc r0, 0
3ece: fd cf rjmp .-6 ; 0x3eca <main+0xca>
}
#endif
// Copy buffer into programming buffer
bufPtr = buff;
addrPtr = (uint16_t)(void*)address;
3ed0: 40 91 00 02 lds r20, 0x0200
3ed4: 50 91 01 02 lds r21, 0x0201
3ed8: a0 e0 ldi r26, 0x00 ; 0
3eda: b1 e0 ldi r27, 0x01 ; 1
ch = SPM_PAGESIZE / 2;
do {
uint16_t a;
a = *bufPtr++;
3edc: 2c 91 ld r18, X
3ede: 30 e0 ldi r19, 0x00 ; 0
a |= (*bufPtr++) << 8;
3ee0: 11 96 adiw r26, 0x01 ; 1
3ee2: 8c 91 ld r24, X
3ee4: 11 97 sbiw r26, 0x01 ; 1
3ee6: 90 e0 ldi r25, 0x00 ; 0
3ee8: 98 2f mov r25, r24
3eea: 88 27 eor r24, r24
3eec: 82 2b or r24, r18
3eee: 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) {
3ef0: 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);
3ef2: fa 01 movw r30, r20
3ef4: 0c 01 movw r0, r24
3ef6: d0 92 57 00 sts 0x0057, r13
3efa: e8 95 spm
3efc: 11 24 eor r1, r1
addrPtr += 2;
3efe: 4e 5f subi r20, 0xFE ; 254
3f00: 5f 4f sbci r21, 0xFF ; 255
} while (--ch);
3f02: f1 e0 ldi r31, 0x01 ; 1
3f04: a0 38 cpi r26, 0x80 ; 128
3f06: bf 07 cpc r27, r31
3f08: 49 f7 brne .-46 ; 0x3edc <main+0xdc>
// Write from programming buffer
boot_page_write((uint16_t)(void*)address);
3f0a: e0 91 00 02 lds r30, 0x0200
3f0e: f0 91 01 02 lds r31, 0x0201
3f12: e0 92 57 00 sts 0x0057, r14
3f16: e8 95 spm
boot_spm_busy_wait();
3f18: 07 b6 in r0, 0x37 ; 55
3f1a: 00 fc sbrc r0, 0
3f1c: fd cf rjmp .-6 ; 0x3f18 <main+0x118>
#if defined(RWWSRE)
// Reenable read access to flash
boot_rww_enable();
3f1e: f0 92 57 00 sts 0x0057, r15
3f22: e8 95 spm
3f24: 27 c0 rjmp .+78 ; 0x3f74 <main+0x174>
#endif
}
/* Read memory block mode, length is big endian. */
else if(ch == STK_READ_PAGE) {
3f26: 84 37 cpi r24, 0x74 ; 116
3f28: b9 f4 brne .+46 ; 0x3f58 <main+0x158>
// READ PAGE - we only read flash
getLen();
3f2a: 4a d0 rcall .+148 ; 0x3fc0 <getLen>
verifySpace();
3f2c: 59 d0 rcall .+178 ; 0x3fe0 <verifySpace>
else ch = pgm_read_byte_near(address);
address++;
putch(ch);
} while (--length);
#else
do putch(pgm_read_byte_near(address++));
3f2e: e0 91 00 02 lds r30, 0x0200
3f32: f0 91 01 02 lds r31, 0x0201
3f36: 31 96 adiw r30, 0x01 ; 1
3f38: f0 93 01 02 sts 0x0201, r31
3f3c: e0 93 00 02 sts 0x0200, r30
3f40: 31 97 sbiw r30, 0x01 ; 1
3f42: e4 91 lpm r30, Z+
3f44: 8e 2f mov r24, r30
3f46: 19 d0 rcall .+50 ; 0x3f7a <putch>
while (--length);
3f48: 80 91 02 02 lds r24, 0x0202
3f4c: 81 50 subi r24, 0x01 ; 1
3f4e: 80 93 02 02 sts 0x0202, r24
3f52: 88 23 and r24, r24
3f54: 61 f7 brne .-40 ; 0x3f2e <main+0x12e>
3f56: 0e c0 rjmp .+28 ; 0x3f74 <main+0x174>
#endif
}
/* Get device signature bytes */
else if(ch == STK_READ_SIGN) {
3f58: 85 37 cpi r24, 0x75 ; 117
3f5a: 39 f4 brne .+14 ; 0x3f6a <main+0x16a>
// READ SIGN - return what Avrdude wants to hear
verifySpace();
3f5c: 41 d0 rcall .+130 ; 0x3fe0 <verifySpace>
putch(SIGNATURE_0);
3f5e: 8e e1 ldi r24, 0x1E ; 30
3f60: 0c d0 rcall .+24 ; 0x3f7a <putch>
putch(SIGNATURE_1);
3f62: 84 e9 ldi r24, 0x94 ; 148
3f64: 0a d0 rcall .+20 ; 0x3f7a <putch>
putch(SIGNATURE_2);
3f66: 86 e0 ldi r24, 0x06 ; 6
3f68: 96 cf rjmp .-212 ; 0x3e96 <main+0x96>
}
else if (ch == 'Q') {
3f6a: 81 35 cpi r24, 0x51 ; 81
3f6c: 11 f4 brne .+4 ; 0x3f72 <main+0x172>
// Adaboot no-wait mod
watchdogConfig(WATCHDOG_16MS);
3f6e: 88 e0 ldi r24, 0x08 ; 8
3f70: 2c d0 rcall .+88 ; 0x3fca <watchdogConfig>
verifySpace();
}
else {
// This covers the response to commands like STK_ENTER_PROGMODE
verifySpace();
3f72: 36 d0 rcall .+108 ; 0x3fe0 <verifySpace>
}
putch(STK_OK);
3f74: 80 e1 ldi r24, 0x10 ; 16
3f76: 01 d0 rcall .+2 ; 0x3f7a <putch>
3f78: 63 cf rjmp .-314 ; 0x3e40 <main+0x40>
00003f7a <putch>:
void putch(char ch) {
#ifndef SOFT_UART
while (!(UCSR0A & _BV(UDRE0)));
UDR0 = ch;
#else
__asm__ __volatile__ (
3f7a: 2a e0 ldi r18, 0x0A ; 10
3f7c: 30 e0 ldi r19, 0x00 ; 0
3f7e: 80 95 com r24
3f80: 08 94 sec
3f82: 10 f4 brcc .+4 ; 0x3f88 <putch+0xe>
3f84: 59 98 cbi 0x0b, 1 ; 11
3f86: 02 c0 rjmp .+4 ; 0x3f8c <putch+0x12>
3f88: 59 9a sbi 0x0b, 1 ; 11
3f8a: 00 00 nop
3f8c: 15 d0 rcall .+42 ; 0x3fb8 <uartDelay>
3f8e: 14 d0 rcall .+40 ; 0x3fb8 <uartDelay>
3f90: 86 95 lsr r24
3f92: 2a 95 dec r18
3f94: b1 f7 brne .-20 ; 0x3f82 <putch+0x8>
[uartBit] "I" (UART_TX_BIT)
:
"r25"
);
#endif
}
3f96: 08 95 ret
00003f98 <getch>:
return getch();
}
// Watchdog functions. These are only safe with interrupts turned off.
void watchdogReset() {
__asm__ __volatile__ (
3f98: a8 95 wdr
#ifdef LED_DATA_FLASH
LED_PIN |= _BV(LED);
#endif
return ch;
}
3f9a: 29 e0 ldi r18, 0x09 ; 9
3f9c: 30 e0 ldi r19, 0x00 ; 0
3f9e: 48 99 sbic 0x09, 0 ; 9
3fa0: fe cf rjmp .-4 ; 0x3f9e <getch+0x6>
3fa2: 0a d0 rcall .+20 ; 0x3fb8 <uartDelay>
3fa4: 09 d0 rcall .+18 ; 0x3fb8 <uartDelay>
3fa6: 08 d0 rcall .+16 ; 0x3fb8 <uartDelay>
3fa8: 88 94 clc
3faa: 48 99 sbic 0x09, 0 ; 9
3fac: 08 94 sec
3fae: 2a 95 dec r18
3fb0: 11 f0 breq .+4 ; 0x3fb6 <getch+0x1e>
3fb2: 87 95 ror r24
3fb4: f7 cf rjmp .-18 ; 0x3fa4 <getch+0xc>
3fb6: 08 95 ret
00003fb8 <uartDelay>:
#if UART_B_VALUE > 255
#error Baud rate too slow for soft UART
#endif
void uartDelay() {
__asm__ __volatile__ (
3fb8: 98 e0 ldi r25, 0x08 ; 8
3fba: 9a 95 dec r25
3fbc: f1 f7 brne .-4 ; 0x3fba <uartDelay+0x2>
3fbe: 08 95 ret
00003fc0 <getLen>:
} while (--count);
}
#endif
uint8_t getLen() {
getch();
3fc0: eb df rcall .-42 ; 0x3f98 <getch>
length = getch();
3fc2: ea df rcall .-44 ; 0x3f98 <getch>
3fc4: 80 93 02 02 sts 0x0202, r24
return getch();
}
3fc8: e7 cf rjmp .-50 ; 0x3f98 <getch>
00003fca <watchdogConfig>:
"wdr\n"
);
}
void watchdogConfig(uint8_t x) {
WDTCSR = _BV(WDCE) | _BV(WDE);
3fca: e0 e6 ldi r30, 0x60 ; 96
3fcc: f0 e0 ldi r31, 0x00 ; 0
3fce: 98 e1 ldi r25, 0x18 ; 24
3fd0: 90 83 st Z, r25
WDTCSR = x;
3fd2: 80 83 st Z, r24
}
3fd4: 08 95 ret
00003fd6 <appStart>:
void appStart() {
watchdogConfig(WATCHDOG_OFF);
3fd6: 80 e0 ldi r24, 0x00 ; 0
3fd8: f8 df rcall .-16 ; 0x3fca <watchdogConfig>
__asm__ __volatile__ (
3fda: ee 27 eor r30, r30
3fdc: ff 27 eor r31, r31
3fde: 09 94 ijmp
00003fe0 <verifySpace>:
do getch(); while (--count);
verifySpace();
}
void verifySpace() {
if (getch() != CRC_EOP) appStart();
3fe0: db df rcall .-74 ; 0x3f98 <getch>
3fe2: 80 32 cpi r24, 0x20 ; 32
3fe4: 09 f0 breq .+2 ; 0x3fe8 <verifySpace+0x8>
3fe6: f7 df rcall .-18 ; 0x3fd6 <appStart>
putch(STK_INSYNC);
3fe8: 84 e1 ldi r24, 0x14 ; 20
}
3fea: c7 cf rjmp .-114 ; 0x3f7a <putch>
::[count] "M" (UART_B_VALUE)
);
}
#endif
void getNch(uint8_t count) {
3fec: 1f 93 push r17
3fee: 18 2f mov r17, r24
00003ff0 <getNch>:
do getch(); while (--count);
3ff0: d3 df rcall .-90 ; 0x3f98 <getch>
3ff2: 11 50 subi r17, 0x01 ; 1
3ff4: e9 f7 brne .-6 ; 0x3ff0 <getNch>
verifySpace();
3ff6: f4 df rcall .-24 ; 0x3fe0 <verifySpace>
}
3ff8: 1f 91 pop r17
3ffa: 08 95 ret
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