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kaklik |
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GAS LISTING /tmp/ccGIWzET.s page 1
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1 .file "UartInterface.c"
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2 .arch atmega8
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3 __SREG__ = 0x3f
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4 __SP_H__ = 0x3e
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5 __SP_L__ = 0x3d
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6 __tmp_reg__ = 0
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7 __zero_reg__ = 1
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11 |
8 .global __do_copy_data
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9 .global __do_clear_bss
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10 .stabs "/home/kaklik/projects/roboti/istrobot/2007/ATmega8/AVRcam/",100,0,2,.Ltext0
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11 .stabs "UartInterface.c",100,0,2,.Ltext0
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12 .text
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13 .Ltext0:
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17 |
14 .stabs "gcc2_compiled.",60,0,0,0
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18 |
15 .stabs "int:t(0,1)=r(0,1);-32768;32767;",128,0,0,0
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19 |
16 .stabs "char:t(0,2)=@s8;r(0,2);0;255;",128,0,0,0
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20 |
17 .stabs "long int:t(0,3)=@s32;r(0,3);020000000000;017777777777;",128,0,0,0
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21 |
18 .stabs "unsigned int:t(0,4)=r(0,4);0;0177777;",128,0,0,0
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22 |
19 .stabs "long unsigned int:t(0,5)=@s32;r(0,5);0;037777777777;",128,0,0,0
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20 .stabs "long long int:t(0,6)=@s64;r(0,6);01000000000000000000000;0777777777777777777777;",128,0,0,
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24 |
21 .stabs "long long unsigned int:t(0,7)=@s64;r(0,7);0;01777777777777777777777;",128,0,0,0
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25 |
22 .stabs "short int:t(0,8)=r(0,8);-32768;32767;",128,0,0,0
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26 |
23 .stabs "short unsigned int:t(0,9)=r(0,9);0;0177777;",128,0,0,0
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27 |
24 .stabs "signed char:t(0,10)=@s8;r(0,10);-128;127;",128,0,0,0
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28 |
25 .stabs "unsigned char:t(0,11)=@s8;r(0,11);0;255;",128,0,0,0
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29 |
26 .stabs "float:t(0,12)=r(0,1);4;0;",128,0,0,0
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30 |
27 .stabs "double:t(0,13)=r(0,1);4;0;",128,0,0,0
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31 |
28 .stabs "long double:t(0,14)=r(0,1);4;0;",128,0,0,0
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32 |
29 .stabs "void:t(0,15)=(0,15)",128,0,0,0
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33 |
30 .stabs "/usr/lib/gcc/avr/4.1.0/../../../../avr/include/avr/io.h",130,0,0,0
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34 |
31 .stabs "/usr/lib/gcc/avr/4.1.0/../../../../avr/include/avr/sfr_defs.h",130,0,0,0
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32 .stabs "/usr/lib/gcc/avr/4.1.0/../../../../avr/include/inttypes.h",130,0,0,0
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36 |
33 .stabs "/usr/lib/gcc/avr/4.1.0/../../../../avr/include/stdint.h",130,0,0,0
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37 |
34 .stabs "int8_t:t(4,1)=(0,10)",128,0,116,0
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38 |
35 .stabs "uint8_t:t(4,2)=(0,11)",128,0,117,0
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39 |
36 .stabs "int16_t:t(4,3)=(0,1)",128,0,118,0
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40 |
37 .stabs "uint16_t:t(4,4)=(0,4)",128,0,119,0
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41 |
38 .stabs "int32_t:t(4,5)=(0,3)",128,0,120,0
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42 |
39 .stabs "uint32_t:t(4,6)=(0,5)",128,0,121,0
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43 |
40 .stabs "int64_t:t(4,7)=(0,6)",128,0,122,0
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44 |
41 .stabs "uint64_t:t(4,8)=(0,7)",128,0,123,0
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45 |
42 .stabs "intptr_t:t(4,9)=(4,3)",128,0,135,0
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46 |
43 .stabs "uintptr_t:t(4,10)=(4,4)",128,0,140,0
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47 |
44 .stabs "int_least8_t:t(4,11)=(4,1)",128,0,152,0
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48 |
45 .stabs "uint_least8_t:t(4,12)=(4,2)",128,0,157,0
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46 .stabs "int_least16_t:t(4,13)=(4,3)",128,0,162,0
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47 .stabs "uint_least16_t:t(4,14)=(4,4)",128,0,167,0
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51 |
48 .stabs "int_least32_t:t(4,15)=(4,5)",128,0,172,0
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52 |
49 .stabs "uint_least32_t:t(4,16)=(4,6)",128,0,177,0
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53 |
50 .stabs "int_least64_t:t(4,17)=(4,7)",128,0,182,0
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54 |
51 .stabs "uint_least64_t:t(4,18)=(4,8)",128,0,187,0
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55 |
52 .stabs "int_fast8_t:t(4,19)=(4,1)",128,0,200,0
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56 |
53 .stabs "uint_fast8_t:t(4,20)=(4,2)",128,0,205,0
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57 |
54 .stabs "int_fast16_t:t(4,21)=(4,3)",128,0,210,0
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58 |
55 .stabs "uint_fast16_t:t(4,22)=(4,4)",128,0,215,0
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59 |
56 .stabs "int_fast32_t:t(4,23)=(4,5)",128,0,220,0
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57 .stabs "uint_fast32_t:t(4,24)=(4,6)",128,0,225,0
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GAS LISTING /tmp/ccGIWzET.s page 2
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58 .stabs "int_fast64_t:t(4,25)=(4,7)",128,0,230,0
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65 |
59 .stabs "uint_fast64_t:t(4,26)=(4,8)",128,0,235,0
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66 |
60 .stabs "intmax_t:t(4,27)=(4,7)",128,0,249,0
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67 |
61 .stabs "uintmax_t:t(4,28)=(4,8)",128,0,254,0
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62 .stabn 162,0,0,0
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69 |
63 .stabs "int_farptr_t:t(3,1)=(4,5)",128,0,76,0
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70 |
64 .stabs "uint_farptr_t:t(3,2)=(4,6)",128,0,80,0
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71 |
65 .stabn 162,0,0,0
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66 .stabn 162,0,0,0
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67 .stabn 162,0,0,0
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68 .stabs "CommonDefs.h",130,0,0,0
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75 |
69 .stabs "bool_t:t(5,1)=(0,11)",128,0,56,0
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70 .stabn 162,0,0,0
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71 .stabs "UartInt_init:F(0,15)",36,0,77,UartInt_init
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72 .global UartInt_init
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73 .type UartInt_init, @function
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74 UartInt_init:
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75 .stabd 46,0,0
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1:UartInterface.c **** /*
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2:UartInterface.c **** Copyright (C) 2004 John Orlando
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3:UartInterface.c ****
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4:UartInterface.c **** AVRcam: a small real-time image processing engine.
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5:UartInterface.c ****
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6:UartInterface.c **** This program is free software; you can redistribute it and/or
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7:UartInterface.c **** modify it under the terms of the GNU General Public
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8:UartInterface.c **** License as published by the Free Software Foundation; either
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9:UartInterface.c **** version 2 of the License, or (at your option) any later version.
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10:UartInterface.c ****
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11:UartInterface.c **** This program is distributed in the hope that it will be useful,
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12:UartInterface.c **** but WITHOUT ANY WARRANTY; without even the implied warranty of
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13:UartInterface.c **** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14:UartInterface.c **** General Public License for more details.
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15:UartInterface.c ****
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16:UartInterface.c **** You should have received a copy of the GNU General Public
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17:UartInterface.c **** License along with this program; if not, write to the Free Software
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18:UartInterface.c **** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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19:UartInterface.c ****
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20:UartInterface.c **** For more information on the AVRcam, please contact:
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21:UartInterface.c ****
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22:UartInterface.c **** john@jrobot.net
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23:UartInterface.c ****
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24:UartInterface.c **** or go to www.jrobot.net for more details regarding the system.
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25:UartInterface.c **** */
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26:UartInterface.c **** /***********************************************************
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27:UartInterface.c **** Module Name: UartInterface.c
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28:UartInterface.c **** Module Date: 04/10/2004
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29:UartInterface.c **** Module Auth: John Orlando
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30:UartInterface.c ****
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31:UartInterface.c **** Description: This module is responsible for providing an
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32:UartInterface.c **** interface to the UART hardware available on the mega8.
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33:UartInterface.c **** This interface is an interrupt-driven interface.
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34:UartInterface.c ****
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35:UartInterface.c **** Revision History:
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36:UartInterface.c **** Date Rel Ver. Notes
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37:UartInterface.c **** 4/10/2004 0.1 Module created
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38:UartInterface.c **** 6/30/2004 1.0 Initial release for Circuit Cellar
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39:UartInterface.c **** contest.
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GAS LISTING /tmp/ccGIWzET.s page 3
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40:UartInterface.c **** 11/15/2004 1.2 Updated UART baud rate regs so that
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41:UartInterface.c **** it runs at 115.2 kbps when the input
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42:UartInterface.c **** crystal is at 17.7 MHz (which is the
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43:UartInterface.c **** speed of the OV6620's crystal).
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44:UartInterface.c **** 1/16/2005 1.4 Moved the serial received ISR to
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45:UartInterface.c **** this file, instead of having it
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46:UartInterface.c **** in its own UartInterfaceAsm.S file
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47:UartInterface.c **** written in assembly.
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48:UartInterface.c **** ***********************************************************/
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49:UartInterface.c ****
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50:UartInterface.c **** /* Includes */
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51:UartInterface.c **** #include <avr/io.h>
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52:UartInterface.c **** #include <avr/interrupt.h>
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53:UartInterface.c **** #include <avr/signal.h>
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54:UartInterface.c **** #include "CommonDefs.h"
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55:UartInterface.c **** #include "UartInterface.h"
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56:UartInterface.c **** #include "UIMgr.h"
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57:UartInterface.c **** #include "Executive.h"
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58:UartInterface.c ****
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59:UartInterface.c **** /* Local Variables */
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60:UartInterface.c ****
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61:UartInterface.c **** /* Local Structures and Typedefs */
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62:UartInterface.c ****
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63:UartInterface.c **** /* Extern Variables */
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64:UartInterface.c ****
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65:UartInterface.c **** /* Definitions */
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66:UartInterface.c ****
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67:UartInterface.c **** /***********************************************************
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68:UartInterface.c **** Function Name: UartInt_init
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69:UartInterface.c **** Function Description: This function is responsible for
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70:UartInterface.c **** initializing the UART interface on the mega8. This
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71:UartInterface.c **** interface is set to communicate at 115.2 Kbps, with an
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72:UartInterface.c **** 8N1 protocol.
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73:UartInterface.c **** Inputs: none
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74:UartInterface.c **** Outputs: none
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75:UartInterface.c **** ***********************************************************/
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76:UartInterface.c **** void UartInt_init(void)
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77:UartInterface.c **** {
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76 .stabn 68,0,77,.LM0-UartInt_init
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77 .LM0:
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78 /* prologue: frame size=0 */
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79 /* prologue end (size=0) */
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78:UartInterface.c **** /* set up the baud rate registers so the UART will operate
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79:UartInterface.c **** at 115.2 Kbps */
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80:UartInterface.c **** UBRRH = 0x00;
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80 .stabn 68,0,80,.LM1-UartInt_init
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81 .LM1:
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82 0000 10BC out 64-0x20,__zero_reg__
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81:UartInterface.c ****
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82:UartInterface.c **** #ifdef NO_CRYSTAL
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83:UartInterface.c **** UBRRL = 18; /* 18 for double clocking at 115.2 kbps */
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83 .stabn 68,0,83,.LM2-UartInt_init
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84 .LM2:
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85 0002 82E1 ldi r24,lo8(18)
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86 0004 89B9 out 41-0x20,r24
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84:UartInterface.c **** #else
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85:UartInterface.c **** UBRRL = 0x08; /* for 16 MHz crystal at 115.2 kbps */
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GAS LISTING /tmp/ccGIWzET.s page 4
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86:UartInterface.c **** #endif
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87:UartInterface.c ****
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88:UartInterface.c **** /* enable the tx and rx capabilities of the UART...as well
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89:UartInterface.c **** as the receive complete interrupt */
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90:UartInterface.c **** UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN);
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87 .stabn 68,0,90,.LM3-UartInt_init
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88 .LM3:
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89 0006 88E9 ldi r24,lo8(-104)
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90 0008 8AB9 out 42-0x20,r24
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91:UartInterface.c ****
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92:UartInterface.c **** /* set up the control registers so the UART works at 8N1 */
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93:UartInterface.c **** UCSRC = (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);
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91 .stabn 68,0,93,.LM4-UartInt_init
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92 .LM4:
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93 000a 86E8 ldi r24,lo8(-122)
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94 000c 80BD out 64-0x20,r24
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94:UartInterface.c ****
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95:UartInterface.c **** #ifdef NO_CRYSTAL
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96:UartInterface.c **** /* set the baud rate to use the double-speed */
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97:UartInterface.c **** UCSRA = (1<<U2X);
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95 .stabn 68,0,97,.LM5-UartInt_init
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96 .LM5:
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97 000e 82E0 ldi r24,lo8(2)
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98 0010 8BB9 out 43-0x20,r24
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99 /* epilogue: frame size=0 */
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100 0012 0895 ret
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101 /* epilogue end (size=1) */
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102 /* function UartInt_init size 10 (9) */
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103 .size UartInt_init, .-UartInt_init
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104 .Lscope0:
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105 .stabs "",36,0,0,.Lscope0-UartInt_init
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106 .stabd 78,0,0
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107 .stabs "UartInt_txByte:F(0,15)",36,0,116,UartInt_txByte
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108 .stabs "txByte:P(0,11)",64,0,115,24
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109 .global UartInt_txByte
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110 .type UartInt_txByte, @function
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111 UartInt_txByte:
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112 .stabd 46,0,0
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98:UartInterface.c **** #endif
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99:UartInterface.c ****
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100:UartInterface.c **** }
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101:UartInterface.c ****
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102:UartInterface.c **** /***********************************************************
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103:UartInterface.c **** Function Name: UartInt_txByte
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104:UartInterface.c **** Function Description: This function is responsible for
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105:UartInterface.c **** transmitting a single byte on the uart.
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106:UartInterface.c **** Inputs: txByte - the byte to send
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107:UartInterface.c **** Outputs: none
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108:UartInterface.c **** NOTES: When the TX UDRE (data register empty) is set, there
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109:UartInterface.c **** is puposefully no interrupt...thus, to send a string of
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110:UartInterface.c **** data out, the calling routine needs to hold up the entire
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111:UartInterface.c **** application while this takes place (or just send one
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112:UartInterface.c **** byte at a time at strtegically timed intervals, like
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113:UartInterface.c **** the stats data is sent out :-)
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114:UartInterface.c **** ***********************************************************/
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115:UartInterface.c **** void UartInt_txByte(unsigned char txByte)
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116:UartInterface.c **** {
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GAS LISTING /tmp/ccGIWzET.s page 5
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113 .stabn 68,0,116,.LM6-UartInt_txByte
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114 .LM6:
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115 /* prologue: frame size=0 */
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116 /* prologue end (size=0) */
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117 .L5:
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117:UartInterface.c **** /* Wait for empty transmit buffer */
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118:UartInterface.c **** while ( !( UCSRA & (1<<UDRE)) );
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118 .stabn 68,0,118,.LM7-UartInt_txByte
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119 .LM7:
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120 0014 5D9B sbis 43-0x20,5
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254 |
121 0016 FECF rjmp .L5
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255 |
119:UartInterface.c **** /* Put data into buffer, sends the data */
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256 |
120:UartInterface.c **** UDR = txByte;
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257 |
122 .stabn 68,0,120,.LM8-UartInt_txByte
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258 |
123 .LM8:
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259 |
124 0018 8CB9 out 44-0x20,r24
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260 |
125 /* epilogue: frame size=0 */
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261 |
126 001a 0895 ret
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262 |
127 /* epilogue end (size=1) */
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263 |
128 /* function UartInt_txByte size 4 (3) */
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264 |
129 .size UartInt_txByte, .-UartInt_txByte
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265 |
130 .Lscope1:
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266 |
131 .stabs "",36,0,0,.Lscope1-UartInt_txByte
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267 |
132 .stabd 78,0,0
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268 |
133 .stabs "__vector_11:F(0,15)",36,0,139,__vector_11
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269 |
134 .global __vector_11
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270 |
135 .type __vector_11, @function
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271 |
136 __vector_11:
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272 |
137 .stabd 46,0,0
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273 |
121:UartInterface.c **** }
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274 |
122:UartInterface.c ****
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275 |
123:UartInterface.c **** /***********************************************************
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276 |
124:UartInterface.c **** Function Name: SIG_UART_RECV ISR
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277 |
125:UartInterface.c **** Function Description: This function is responsible for
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278 |
126:UartInterface.c **** handling the interrupt caused when a data byte is
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279 |
127:UartInterface.c **** received by the UART.
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280 |
128:UartInterface.c **** Inputs: none
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281 |
129:UartInterface.c **** Outputs: none
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282 |
130:UartInterface.c **** NOTES: This function was originally written in assembly,
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283 |
131:UartInterface.c **** but moved over to C when the setting of the "T" bit at
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284 |
132:UartInterface.c **** the end of the routine was no longer necessary (this
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285 |
133:UartInterface.c **** theoretically allowed the AVRcam to respond to serial
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286 |
134:UartInterface.c **** bytes in the middle of tracking or dumping a frame.
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287 |
135:UartInterface.c **** But it wasn't really needed, and understanding the C
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288 |
136:UartInterface.c **** is easier :-)
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289 |
137:UartInterface.c **** ***********************************************************/
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290 |
138:UartInterface.c **** SIGNAL(SIG_UART_RECV)
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291 |
139:UartInterface.c **** {
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292 |
138 .stabn 68,0,139,.LM9-__vector_11
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293 |
139 .LM9:
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294 |
140 /* prologue: frame size=0 */
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295 |
141 001c 1F92 push __zero_reg__
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296 |
142 001e 0F92 push __tmp_reg__
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297 |
143 0020 0FB6 in __tmp_reg__,__SREG__
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298 |
144 0022 0F92 push __tmp_reg__
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299 |
145 0024 1124 clr __zero_reg__
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300 |
146 0026 8F93 push r24
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301 |
GAS LISTING /tmp/ccGIWzET.s page 6
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302 |
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303 |
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304 |
147 0028 9F93 push r25
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305 |
148 002a EF93 push r30
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306 |
149 002c FF93 push r31
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307 |
150 /* prologue end (size=9) */
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308 |
140:UartInterface.c **** unsigned char tmpHead;
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309 |
141:UartInterface.c **** /* read the data byte, put it in the serial queue, and
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310 |
142:UartInterface.c **** post the event */
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311 |
143:UartInterface.c ****
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312 |
144:UartInterface.c **** UIMgr_rxFifo[UIMgr_rxFifoHead] = UDR;
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313 |
151 .stabn 68,0,144,.LM10-__vector_11
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314 |
152 .LM10:
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315 |
153 002e 8091 0000 lds r24,UIMgr_rxFifoHead
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316 |
154 0032 9CB1 in r25,44-0x20
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317 |
155 0034 E0E0 ldi r30,lo8(UIMgr_rxFifo)
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318 |
156 0036 F0E0 ldi r31,hi8(UIMgr_rxFifo)
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319 |
157 0038 E80F add r30,r24
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320 |
158 003a F11D adc r31,__zero_reg__
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321 |
159 003c 9083 st Z,r25
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322 |
145:UartInterface.c ****
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323 |
146:UartInterface.c **** /* now move the head up */
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324 |
147:UartInterface.c **** tmpHead = (UIMgr_rxFifoHead + 1) & (UI_MGR_RX_FIFO_MASK);
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325 |
148:UartInterface.c **** UIMgr_rxFifoHead = tmpHead;
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326 |
160 .stabn 68,0,148,.LM11-__vector_11
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327 |
161 .LM11:
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328 |
162 003e 8F5F subi r24,lo8(-(1))
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329 |
163 0040 8F71 andi r24,lo8(31)
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330 |
164 0042 8093 0000 sts UIMgr_rxFifoHead,r24
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331 |
149:UartInterface.c ****
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332 |
150:UartInterface.c **** /* write the serial received event to the event fifo */
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333 |
151:UartInterface.c **** Exec_eventFifo[Exec_eventFifoHead] = EV_SERIAL_DATA_RECEIVED;
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334 |
165 .stabn 68,0,151,.LM12-__vector_11
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335 |
166 .LM12:
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336 |
167 0046 8091 0000 lds r24,Exec_eventFifoHead
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337 |
168 004a E0E0 ldi r30,lo8(Exec_eventFifo)
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338 |
169 004c F0E0 ldi r31,hi8(Exec_eventFifo)
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339 |
170 004e E80F add r30,r24
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340 |
171 0050 F11D adc r31,__zero_reg__
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341 |
172 0052 91E0 ldi r25,lo8(1)
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342 |
173 0054 9083 st Z,r25
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343 |
152:UartInterface.c ****
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344 |
153:UartInterface.c **** /* now move the head up */
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345 |
154:UartInterface.c **** tmpHead = (Exec_eventFifoHead + 1) & (EXEC_EVENT_FIFO_MASK);
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346 |
155:UartInterface.c **** Exec_eventFifoHead = tmpHead;
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|
347 |
174 .stabn 68,0,155,.LM13-__vector_11
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348 |
175 .LM13:
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|
349 |
176 0056 8F5F subi r24,lo8(-(1))
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|
350 |
177 0058 8770 andi r24,lo8(7)
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|
351 |
178 005a 8093 0000 sts Exec_eventFifoHead,r24
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|
352 |
179 /* epilogue: frame size=0 */
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353 |
180 005e FF91 pop r31
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354 |
181 0060 EF91 pop r30
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|
355 |
182 0062 9F91 pop r25
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|
356 |
183 0064 8F91 pop r24
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|
357 |
184 0066 0F90 pop __tmp_reg__
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|
358 |
185 0068 0FBE out __SREG__,__tmp_reg__
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|
359 |
186 006a 0F90 pop __tmp_reg__
|
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|
360 |
187 006c 1F90 pop __zero_reg__
|
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|
361 |
GAS LISTING /tmp/ccGIWzET.s page 7
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362 |
|
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|
363 |
|
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|
364 |
188 006e 1895 reti
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365 |
189 /* epilogue end (size=9) */
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366 |
190 /* function __vector_11 size 42 (24) */
|
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367 |
191 .size __vector_11, .-__vector_11
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368 |
192 .Lscope2:
|
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|
369 |
193 .stabs "",36,0,0,.Lscope2-__vector_11
|
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370 |
194 .stabd 78,0,0
|
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|
371 |
195 .stabs "",100,0,0,.Letext0
|
|
|
372 |
196 .Letext0:
|
|
|
373 |
197 /* File "UartInterface.c": code 56 = 0x0038 ( 36), prologues 9, epilogues 11 */
|
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374 |
GAS LISTING /tmp/ccGIWzET.s page 8
|
|
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375 |
|
|
|
376 |
|
|
|
377 |
DEFINED SYMBOLS
|
|
|
378 |
*ABS*:00000000 UartInterface.c
|
|
|
379 |
/tmp/ccGIWzET.s:3 *ABS*:0000003f __SREG__
|
|
|
380 |
/tmp/ccGIWzET.s:4 *ABS*:0000003e __SP_H__
|
|
|
381 |
/tmp/ccGIWzET.s:5 *ABS*:0000003d __SP_L__
|
|
|
382 |
/tmp/ccGIWzET.s:6 *ABS*:00000000 __tmp_reg__
|
|
|
383 |
/tmp/ccGIWzET.s:7 *ABS*:00000001 __zero_reg__
|
|
|
384 |
/tmp/ccGIWzET.s:74 .text:00000000 UartInt_init
|
|
|
385 |
/tmp/ccGIWzET.s:111 .text:00000014 UartInt_txByte
|
|
|
386 |
/tmp/ccGIWzET.s:136 .text:0000001c __vector_11
|
|
|
387 |
|
|
|
388 |
UNDEFINED SYMBOLS
|
|
|
389 |
__do_copy_data
|
|
|
390 |
__do_clear_bss
|
|
|
391 |
UIMgr_rxFifoHead
|
|
|
392 |
UIMgr_rxFifo
|
|
|
393 |
Exec_eventFifoHead
|
|
|
394 |
Exec_eventFifo
|