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Diffstat (limited to 'test/ardmake/hardware/bootloaders/optiboot/optiboot_atmega328.lst')
-rw-r--r--test/ardmake/hardware/bootloaders/optiboot/optiboot_atmega328.lst520
1 files changed, 520 insertions, 0 deletions
diff --git a/test/ardmake/hardware/bootloaders/optiboot/optiboot_atmega328.lst b/test/ardmake/hardware/bootloaders/optiboot/optiboot_atmega328.lst
new file mode 100644
index 0000000..888871d
--- /dev/null
+++ b/test/ardmake/hardware/bootloaders/optiboot/optiboot_atmega328.lst
@@ -0,0 +1,520 @@
+
+optiboot_atmega328.elf: file format elf32-avr
+
+Sections:
+Idx Name Size VMA LMA File off Algn
+ 0 .text 000001ec 00007e00 00007e00 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:
+
+00007e00 <main>:
+#ifdef VIRTUAL_BOOT_PARTITION
+#define rstVect (*(uint16_t*)(0x204))
+#define wdtVect (*(uint16_t*)(0x206))
+#endif
+/* main program starts here */
+int main(void) {
+ 7e00: 85 e0 ldi r24, 0x05 ; 5
+ 7e02: 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
+ 7e06: 82 e0 ldi r24, 0x02 ; 2
+ 7e08: 80 93 c0 00 sts 0x00C0, r24
+ UCSR0B = _BV(RXEN0) | _BV(TXEN0);
+ 7e0c: 88 e1 ldi r24, 0x18 ; 24
+ 7e0e: 80 93 c1 00 sts 0x00C1, r24
+ UCSR0C = _BV(UCSZ00) | _BV(UCSZ01);
+ 7e12: 86 e0 ldi r24, 0x06 ; 6
+ 7e14: 80 93 c2 00 sts 0x00C2, r24
+ UBRR0L = (uint8_t)( (F_CPU + BAUD_RATE * 4L) / (BAUD_RATE * 8L) - 1 );
+ 7e18: 80 e1 ldi r24, 0x10 ; 16
+ 7e1a: 80 93 c4 00 sts 0x00C4, r24
+#endif
+
+ // Adaboot no-wait mod
+ ch = MCUSR;
+ 7e1e: 84 b7 in r24, 0x34 ; 52
+ MCUSR = 0;
+ 7e20: 14 be out 0x34, r1 ; 52
+ if (!(ch & _BV(EXTRF))) appStart();
+ 7e22: 81 ff sbrs r24, 1
+ 7e24: d0 d0 rcall .+416 ; 0x7fc6 <appStart>
+
+ // Set up watchdog to trigger after 500ms
+ watchdogConfig(WATCHDOG_500MS);
+ 7e26: 8d e0 ldi r24, 0x0D ; 13
+ 7e28: c8 d0 rcall .+400 ; 0x7fba <watchdogConfig>
+
+ /* Set LED pin as output */
+ LED_DDR |= _BV(LED);
+ 7e2a: 25 9a sbi 0x04, 5 ; 4
+ 7e2c: 86 e0 ldi r24, 0x06 ; 6
+}
+
+#if LED_START_FLASHES > 0
+void flash_led(uint8_t count) {
+ do {
+ TCNT1 = -(F_CPU/(1024*16));
+ 7e2e: 20 e3 ldi r18, 0x30 ; 48
+ 7e30: 3c ef ldi r19, 0xFC ; 252
+ TIFR1 = _BV(TOV1);
+ 7e32: 91 e0 ldi r25, 0x01 ; 1
+}
+
+#if LED_START_FLASHES > 0
+void flash_led(uint8_t count) {
+ do {
+ TCNT1 = -(F_CPU/(1024*16));
+ 7e34: 30 93 85 00 sts 0x0085, r19
+ 7e38: 20 93 84 00 sts 0x0084, r18
+ TIFR1 = _BV(TOV1);
+ 7e3c: 96 bb out 0x16, r25 ; 22
+ while(!(TIFR1 & _BV(TOV1)));
+ 7e3e: b0 9b sbis 0x16, 0 ; 22
+ 7e40: fe cf rjmp .-4 ; 0x7e3e <main+0x3e>
+ LED_PIN |= _BV(LED);
+ 7e42: 1d 9a sbi 0x03, 5 ; 3
+ return getch();
+}
+
+// Watchdog functions. These are only safe with interrupts turned off.
+void watchdogReset() {
+ __asm__ __volatile__ (
+ 7e44: a8 95 wdr
+ TCNT1 = -(F_CPU/(1024*16));
+ TIFR1 = _BV(TOV1);
+ while(!(TIFR1 & _BV(TOV1)));
+ LED_PIN |= _BV(LED);
+ watchdogReset();
+ } while (--count);
+ 7e46: 81 50 subi r24, 0x01 ; 1
+ 7e48: a9 f7 brne .-22 ; 0x7e34 <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);
+ 7e4a: dd 24 eor r13, r13
+ 7e4c: 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);
+ 7e4e: a5 e0 ldi r26, 0x05 ; 5
+ 7e50: ea 2e mov r14, r26
+ boot_spm_busy_wait();
+
+#if defined(RWWSRE)
+ // Reenable read access to flash
+ boot_rww_enable();
+ 7e52: f1 e1 ldi r31, 0x11 ; 17
+ 7e54: ff 2e mov r15, r31
+#endif
+
+ /* Forever loop */
+ for (;;) {
+ /* get character from UART */
+ ch = getch();
+ 7e56: a4 d0 rcall .+328 ; 0x7fa0 <getch>
+
+ if(ch == STK_GET_PARAMETER) {
+ 7e58: 81 34 cpi r24, 0x41 ; 65
+ 7e5a: 21 f4 brne .+8 ; 0x7e64 <main+0x64>
+ // GET PARAMETER returns a generic 0x03 reply - enough to keep Avrdude happy
+ getNch(1);
+ 7e5c: 81 e0 ldi r24, 0x01 ; 1
+ 7e5e: be d0 rcall .+380 ; 0x7fdc <verifySpace+0xc>
+ putch(0x03);
+ 7e60: 83 e0 ldi r24, 0x03 ; 3
+ 7e62: 24 c0 rjmp .+72 ; 0x7eac <main+0xac>
+ }
+ else if(ch == STK_SET_DEVICE) {
+ 7e64: 82 34 cpi r24, 0x42 ; 66
+ 7e66: 11 f4 brne .+4 ; 0x7e6c <main+0x6c>
+ // SET DEVICE is ignored
+ getNch(20);
+ 7e68: 84 e1 ldi r24, 0x14 ; 20
+ 7e6a: 03 c0 rjmp .+6 ; 0x7e72 <main+0x72>
+ }
+ else if(ch == STK_SET_DEVICE_EXT) {
+ 7e6c: 85 34 cpi r24, 0x45 ; 69
+ 7e6e: 19 f4 brne .+6 ; 0x7e76 <main+0x76>
+ // SET DEVICE EXT is ignored
+ getNch(5);
+ 7e70: 85 e0 ldi r24, 0x05 ; 5
+ 7e72: b4 d0 rcall .+360 ; 0x7fdc <verifySpace+0xc>
+ 7e74: 8a c0 rjmp .+276 ; 0x7f8a <main+0x18a>
+ }
+ else if(ch == STK_LOAD_ADDRESS) {
+ 7e76: 85 35 cpi r24, 0x55 ; 85
+ 7e78: a1 f4 brne .+40 ; 0x7ea2 <main+0xa2>
+ // LOAD ADDRESS
+ address = getch();
+ 7e7a: 92 d0 rcall .+292 ; 0x7fa0 <getch>
+ 7e7c: 08 2f mov r16, r24
+ 7e7e: 10 e0 ldi r17, 0x00 ; 0
+ 7e80: 10 93 01 02 sts 0x0201, r17
+ 7e84: 00 93 00 02 sts 0x0200, r16
+ address = (address & 0xff) | (getch() << 8);
+ 7e88: 8b d0 rcall .+278 ; 0x7fa0 <getch>
+ 7e8a: 90 e0 ldi r25, 0x00 ; 0
+ 7e8c: 98 2f mov r25, r24
+ 7e8e: 88 27 eor r24, r24
+ 7e90: 80 2b or r24, r16
+ 7e92: 91 2b or r25, r17
+ address += address; // Convert from word address to byte address
+ 7e94: 88 0f add r24, r24
+ 7e96: 99 1f adc r25, r25
+ 7e98: 90 93 01 02 sts 0x0201, r25
+ 7e9c: 80 93 00 02 sts 0x0200, r24
+ 7ea0: 73 c0 rjmp .+230 ; 0x7f88 <main+0x188>
+ verifySpace();
+ }
+ else if(ch == STK_UNIVERSAL) {
+ 7ea2: 86 35 cpi r24, 0x56 ; 86
+ 7ea4: 29 f4 brne .+10 ; 0x7eb0 <main+0xb0>
+ // UNIVERSAL command is ignored
+ getNch(4);
+ 7ea6: 84 e0 ldi r24, 0x04 ; 4
+ 7ea8: 99 d0 rcall .+306 ; 0x7fdc <verifySpace+0xc>
+ putch(0x00);
+ 7eaa: 80 e0 ldi r24, 0x00 ; 0
+ 7eac: 71 d0 rcall .+226 ; 0x7f90 <putch>
+ 7eae: 6d c0 rjmp .+218 ; 0x7f8a <main+0x18a>
+ }
+ /* Write memory, length is big endian and is in bytes */
+ else if(ch == STK_PROG_PAGE) {
+ 7eb0: 84 36 cpi r24, 0x64 ; 100
+ 7eb2: 09 f0 breq .+2 ; 0x7eb6 <main+0xb6>
+ 7eb4: 43 c0 rjmp .+134 ; 0x7f3c <main+0x13c>
+ // PROGRAM PAGE - we support flash programming only, not EEPROM
+ uint8_t *bufPtr;
+ uint16_t addrPtr;
+
+ getLen();
+ 7eb6: 7c d0 rcall .+248 ; 0x7fb0 <getLen>
+
+ // Immediately start page erase - this will 4.5ms
+ boot_page_erase((uint16_t)(void*)address);
+ 7eb8: e0 91 00 02 lds r30, 0x0200
+ 7ebc: f0 91 01 02 lds r31, 0x0201
+ 7ec0: 83 e0 ldi r24, 0x03 ; 3
+ 7ec2: 80 93 57 00 sts 0x0057, r24
+ 7ec6: e8 95 spm
+ 7ec8: c0 e0 ldi r28, 0x00 ; 0
+ 7eca: d1 e0 ldi r29, 0x01 ; 1
+
+ // While that is going on, read in page contents
+ bufPtr = buff;
+ do *bufPtr++ = getch();
+ 7ecc: 69 d0 rcall .+210 ; 0x7fa0 <getch>
+ 7ece: 89 93 st Y+, r24
+ while (--length);
+ 7ed0: 80 91 02 02 lds r24, 0x0202
+ 7ed4: 81 50 subi r24, 0x01 ; 1
+ 7ed6: 80 93 02 02 sts 0x0202, r24
+ 7eda: 88 23 and r24, r24
+ 7edc: b9 f7 brne .-18 ; 0x7ecc <main+0xcc>
+
+ // Read command terminator, start reply
+ verifySpace();
+ 7ede: 78 d0 rcall .+240 ; 0x7fd0 <verifySpace>
+
+ // If only a partial page is to be programmed, the erase might not be complete.
+ // So check that here
+ boot_spm_busy_wait();
+ 7ee0: 07 b6 in r0, 0x37 ; 55
+ 7ee2: 00 fc sbrc r0, 0
+ 7ee4: fd cf rjmp .-6 ; 0x7ee0 <main+0xe0>
+ }
+#endif
+
+ // Copy buffer into programming buffer
+ bufPtr = buff;
+ addrPtr = (uint16_t)(void*)address;
+ 7ee6: 40 91 00 02 lds r20, 0x0200
+ 7eea: 50 91 01 02 lds r21, 0x0201
+ 7eee: a0 e0 ldi r26, 0x00 ; 0
+ 7ef0: b1 e0 ldi r27, 0x01 ; 1
+ ch = SPM_PAGESIZE / 2;
+ do {
+ uint16_t a;
+ a = *bufPtr++;
+ 7ef2: 2c 91 ld r18, X
+ 7ef4: 30 e0 ldi r19, 0x00 ; 0
+ a |= (*bufPtr++) << 8;
+ 7ef6: 11 96 adiw r26, 0x01 ; 1
+ 7ef8: 8c 91 ld r24, X
+ 7efa: 11 97 sbiw r26, 0x01 ; 1
+ 7efc: 90 e0 ldi r25, 0x00 ; 0
+ 7efe: 98 2f mov r25, r24
+ 7f00: 88 27 eor r24, r24
+ 7f02: 82 2b or r24, r18
+ 7f04: 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) {
+ 7f06: 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);
+ 7f08: fa 01 movw r30, r20
+ 7f0a: 0c 01 movw r0, r24
+ 7f0c: d0 92 57 00 sts 0x0057, r13
+ 7f10: e8 95 spm
+ 7f12: 11 24 eor r1, r1
+ addrPtr += 2;
+ 7f14: 4e 5f subi r20, 0xFE ; 254
+ 7f16: 5f 4f sbci r21, 0xFF ; 255
+ } while (--ch);
+ 7f18: f1 e0 ldi r31, 0x01 ; 1
+ 7f1a: a0 38 cpi r26, 0x80 ; 128
+ 7f1c: bf 07 cpc r27, r31
+ 7f1e: 49 f7 brne .-46 ; 0x7ef2 <main+0xf2>
+
+ // Write from programming buffer
+ boot_page_write((uint16_t)(void*)address);
+ 7f20: e0 91 00 02 lds r30, 0x0200
+ 7f24: f0 91 01 02 lds r31, 0x0201
+ 7f28: e0 92 57 00 sts 0x0057, r14
+ 7f2c: e8 95 spm
+ boot_spm_busy_wait();
+ 7f2e: 07 b6 in r0, 0x37 ; 55
+ 7f30: 00 fc sbrc r0, 0
+ 7f32: fd cf rjmp .-6 ; 0x7f2e <main+0x12e>
+
+#if defined(RWWSRE)
+ // Reenable read access to flash
+ boot_rww_enable();
+ 7f34: f0 92 57 00 sts 0x0057, r15
+ 7f38: e8 95 spm
+ 7f3a: 27 c0 rjmp .+78 ; 0x7f8a <main+0x18a>
+#endif
+
+ }
+ /* Read memory block mode, length is big endian. */
+ else if(ch == STK_READ_PAGE) {
+ 7f3c: 84 37 cpi r24, 0x74 ; 116
+ 7f3e: b9 f4 brne .+46 ; 0x7f6e <main+0x16e>
+ // READ PAGE - we only read flash
+ getLen();
+ 7f40: 37 d0 rcall .+110 ; 0x7fb0 <getLen>
+ verifySpace();
+ 7f42: 46 d0 rcall .+140 ; 0x7fd0 <verifySpace>
+ else ch = pgm_read_byte_near(address);
+ address++;
+ putch(ch);
+ } while (--length);
+#else
+ do putch(pgm_read_byte_near(address++));
+ 7f44: e0 91 00 02 lds r30, 0x0200
+ 7f48: f0 91 01 02 lds r31, 0x0201
+ 7f4c: 31 96 adiw r30, 0x01 ; 1
+ 7f4e: f0 93 01 02 sts 0x0201, r31
+ 7f52: e0 93 00 02 sts 0x0200, r30
+ 7f56: 31 97 sbiw r30, 0x01 ; 1
+ 7f58: e4 91 lpm r30, Z+
+ 7f5a: 8e 2f mov r24, r30
+ 7f5c: 19 d0 rcall .+50 ; 0x7f90 <putch>
+ while (--length);
+ 7f5e: 80 91 02 02 lds r24, 0x0202
+ 7f62: 81 50 subi r24, 0x01 ; 1
+ 7f64: 80 93 02 02 sts 0x0202, r24
+ 7f68: 88 23 and r24, r24
+ 7f6a: 61 f7 brne .-40 ; 0x7f44 <main+0x144>
+ 7f6c: 0e c0 rjmp .+28 ; 0x7f8a <main+0x18a>
+#endif
+ }
+
+ /* Get device signature bytes */
+ else if(ch == STK_READ_SIGN) {
+ 7f6e: 85 37 cpi r24, 0x75 ; 117
+ 7f70: 39 f4 brne .+14 ; 0x7f80 <main+0x180>
+ // READ SIGN - return what Avrdude wants to hear
+ verifySpace();
+ 7f72: 2e d0 rcall .+92 ; 0x7fd0 <verifySpace>
+ putch(SIGNATURE_0);
+ 7f74: 8e e1 ldi r24, 0x1E ; 30
+ 7f76: 0c d0 rcall .+24 ; 0x7f90 <putch>
+ putch(SIGNATURE_1);
+ 7f78: 85 e9 ldi r24, 0x95 ; 149
+ 7f7a: 0a d0 rcall .+20 ; 0x7f90 <putch>
+ putch(SIGNATURE_2);
+ 7f7c: 8f e0 ldi r24, 0x0F ; 15
+ 7f7e: 96 cf rjmp .-212 ; 0x7eac <main+0xac>
+ }
+ else if (ch == 'Q') {
+ 7f80: 81 35 cpi r24, 0x51 ; 81
+ 7f82: 11 f4 brne .+4 ; 0x7f88 <main+0x188>
+ // Adaboot no-wait mod
+ watchdogConfig(WATCHDOG_16MS);
+ 7f84: 88 e0 ldi r24, 0x08 ; 8
+ 7f86: 19 d0 rcall .+50 ; 0x7fba <watchdogConfig>
+ verifySpace();
+ }
+ else {
+ // This covers the response to commands like STK_ENTER_PROGMODE
+ verifySpace();
+ 7f88: 23 d0 rcall .+70 ; 0x7fd0 <verifySpace>
+ }
+ putch(STK_OK);
+ 7f8a: 80 e1 ldi r24, 0x10 ; 16
+ 7f8c: 01 d0 rcall .+2 ; 0x7f90 <putch>
+ 7f8e: 63 cf rjmp .-314 ; 0x7e56 <main+0x56>
+
+00007f90 <putch>:
+ }
+}
+
+void putch(char ch) {
+ 7f90: 98 2f mov r25, r24
+#ifndef SOFT_UART
+ while (!(UCSR0A & _BV(UDRE0)));
+ 7f92: 80 91 c0 00 lds r24, 0x00C0
+ 7f96: 85 ff sbrs r24, 5
+ 7f98: fc cf rjmp .-8 ; 0x7f92 <putch+0x2>
+ UDR0 = ch;
+ 7f9a: 90 93 c6 00 sts 0x00C6, r25
+ [uartBit] "I" (UART_TX_BIT)
+ :
+ "r25"
+ );
+#endif
+}
+ 7f9e: 08 95 ret
+
+00007fa0 <getch>:
+ return getch();
+}
+
+// Watchdog functions. These are only safe with interrupts turned off.
+void watchdogReset() {
+ __asm__ __volatile__ (
+ 7fa0: a8 95 wdr
+ [uartBit] "I" (UART_RX_BIT)
+ :
+ "r25"
+);
+#else
+ while(!(UCSR0A & _BV(RXC0)));
+ 7fa2: 80 91 c0 00 lds r24, 0x00C0
+ 7fa6: 87 ff sbrs r24, 7
+ 7fa8: fc cf rjmp .-8 ; 0x7fa2 <getch+0x2>
+ ch = UDR0;
+ 7faa: 80 91 c6 00 lds r24, 0x00C6
+#ifdef LED_DATA_FLASH
+ LED_PIN |= _BV(LED);
+#endif
+
+ return ch;
+}
+ 7fae: 08 95 ret
+
+00007fb0 <getLen>:
+ } while (--count);
+}
+#endif
+
+uint8_t getLen() {
+ getch();
+ 7fb0: f7 df rcall .-18 ; 0x7fa0 <getch>
+ length = getch();
+ 7fb2: f6 df rcall .-20 ; 0x7fa0 <getch>
+ 7fb4: 80 93 02 02 sts 0x0202, r24
+ return getch();
+}
+ 7fb8: f3 cf rjmp .-26 ; 0x7fa0 <getch>
+
+00007fba <watchdogConfig>:
+ "wdr\n"
+ );
+}
+
+void watchdogConfig(uint8_t x) {
+ WDTCSR = _BV(WDCE) | _BV(WDE);
+ 7fba: e0 e6 ldi r30, 0x60 ; 96
+ 7fbc: f0 e0 ldi r31, 0x00 ; 0
+ 7fbe: 98 e1 ldi r25, 0x18 ; 24
+ 7fc0: 90 83 st Z, r25
+ WDTCSR = x;
+ 7fc2: 80 83 st Z, r24
+}
+ 7fc4: 08 95 ret
+
+00007fc6 <appStart>:
+
+void appStart() {
+ watchdogConfig(WATCHDOG_OFF);
+ 7fc6: 80 e0 ldi r24, 0x00 ; 0
+ 7fc8: f8 df rcall .-16 ; 0x7fba <watchdogConfig>
+ __asm__ __volatile__ (
+ 7fca: ee 27 eor r30, r30
+ 7fcc: ff 27 eor r31, r31
+ 7fce: 09 94 ijmp
+
+00007fd0 <verifySpace>:
+ do getch(); while (--count);
+ verifySpace();
+}
+
+void verifySpace() {
+ if (getch() != CRC_EOP) appStart();
+ 7fd0: e7 df rcall .-50 ; 0x7fa0 <getch>
+ 7fd2: 80 32 cpi r24, 0x20 ; 32
+ 7fd4: 09 f0 breq .+2 ; 0x7fd8 <verifySpace+0x8>
+ 7fd6: f7 df rcall .-18 ; 0x7fc6 <appStart>
+ putch(STK_INSYNC);
+ 7fd8: 84 e1 ldi r24, 0x14 ; 20
+}
+ 7fda: da cf rjmp .-76 ; 0x7f90 <putch>
+ ::[count] "M" (UART_B_VALUE)
+ );
+}
+#endif
+
+void getNch(uint8_t count) {
+ 7fdc: 1f 93 push r17
+ 7fde: 18 2f mov r17, r24
+
+00007fe0 <getNch>:
+ do getch(); while (--count);
+ 7fe0: df df rcall .-66 ; 0x7fa0 <getch>
+ 7fe2: 11 50 subi r17, 0x01 ; 1
+ 7fe4: e9 f7 brne .-6 ; 0x7fe0 <getNch>
+ verifySpace();
+ 7fe6: f4 df rcall .-24 ; 0x7fd0 <verifySpace>
+}
+ 7fe8: 1f 91 pop r17
+ 7fea: 08 95 ret