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   1                    .file   "timebase.c"
   2                    .arch atmega8
   3                __SREG__ = 0x3f
   4                __SP_H__ = 0x3e
   5                __SP_L__ = 0x3d
   6                __tmp_reg__ = 0
   7                __zero_reg__ = 1
   8                    .global __do_copy_data
   9                    .global __do_clear_bss
  11                    .text
  12                .Ltext0:
  64                .global __vector_4
  66                __vector_4:
   1:../avr-lib/drivers/timer/timebase.c **** /**
   2:../avr-lib/drivers/timer/timebase.c ****  * Timebase software module. Utilizes timer0 to provide a 32bit timebase with
   3:../avr-lib/drivers/timer/timebase.c ****  * millisecond-granularity to the application.
   4:../avr-lib/drivers/timer/timebase.c ****  * 
   5:../avr-lib/drivers/timer/timebase.c ****  * @author    Martin Thomas
   6:../avr-lib/drivers/timer/timebase.c ****  * @author    Jimmy Myhrman
   7:../avr-lib/drivers/timer/timebase.c ****  * 
   8:../avr-lib/drivers/timer/timebase.c ****  * @date  2006-11-19
   9:../avr-lib/drivers/timer/timebase.c ****  */
  10:../avr-lib/drivers/timer/timebase.c **** 
  11:../avr-lib/drivers/timer/timebase.c **** /*-----------------------------------------------------------------------------
  12:../avr-lib/drivers/timer/timebase.c ****  * Includes
  13:../avr-lib/drivers/timer/timebase.c ****  *---------------------------------------------------------------------------*/
  14:../avr-lib/drivers/timer/timebase.c **** #include <inttypes.h>
  15:../avr-lib/drivers/timer/timebase.c **** #include <avr/io.h>
  16:../avr-lib/drivers/timer/timebase.c **** #include <avr/interrupt.h>
  17:../avr-lib/drivers/timer/timebase.c **** 
  18:../avr-lib/drivers/timer/timebase.c **** #include <config.h>
  19:../avr-lib/drivers/timer/timebase.c **** #include <drivers/timer/timebase.h>
  20:../avr-lib/drivers/timer/timebase.c **** 
  21:../avr-lib/drivers/timer/timebase.c **** 
  22:../avr-lib/drivers/timer/timebase.c **** /*-----------------------------------------------------------------------------
  23:../avr-lib/drivers/timer/timebase.c ****  * Globals
  24:../avr-lib/drivers/timer/timebase.c ****  *---------------------------------------------------------------------------*/
  25:../avr-lib/drivers/timer/timebase.c **** volatile uint32_t gMilliSecTick;
  26:../avr-lib/drivers/timer/timebase.c **** 
  27:../avr-lib/drivers/timer/timebase.c **** 
  28:../avr-lib/drivers/timer/timebase.c **** /*-----------------------------------------------------------------------------
  29:../avr-lib/drivers/timer/timebase.c ****  * Interrupt Service Routines
  30:../avr-lib/drivers/timer/timebase.c ****  *---------------------------------------------------------------------------*/
  31:../avr-lib/drivers/timer/timebase.c **** #if defined(TIMER2)
  32:../avr-lib/drivers/timer/timebase.c **** ISR(SIG_OVERFLOW2) {
  68                .LM0:
  69                /* prologue: frame size=0 */
  70 0000 1F92              push __zero_reg__
  71 0002 0F92              push __tmp_reg__
  72 0004 0FB6              in __tmp_reg__,__SREG__
  73 0006 0F92              push __tmp_reg__
  74 0008 1124              clr __zero_reg__
  75 000a 8F93              push r24
  76 000c 9F93              push r25
  77 000e AF93              push r26
  78 0010 BF93              push r27
  79                /* prologue end (size=9) */
  33:../avr-lib/drivers/timer/timebase.c ****   TCNT2 = TIMEBASE_RELOAD;
  81                .LM1:
  82 0012 83E8              ldi r24,lo8(-125)
  83 0014 84BD              out 68-0x20,r24
  34:../avr-lib/drivers/timer/timebase.c ****   gMilliSecTick++;
  85                .LM2:
  86 0016 8091 0000         lds r24,gMilliSecTick
  87 001a 9091 0000         lds r25,(gMilliSecTick)+1
  88 001e A091 0000         lds r26,(gMilliSecTick)+2
  89 0022 B091 0000         lds r27,(gMilliSecTick)+3
  90 0026 0196              adiw r24,1
  91 0028 A11D              adc r26,__zero_reg__
  92 002a B11D              adc r27,__zero_reg__
  93 002c 8093 0000         sts gMilliSecTick,r24
  94 0030 9093 0000         sts (gMilliSecTick)+1,r25
  95 0034 A093 0000         sts (gMilliSecTick)+2,r26
  96 0038 B093 0000         sts (gMilliSecTick)+3,r27
  97                /* epilogue: frame size=0 */
  98 003c BF91              pop r27
  99 003e AF91              pop r26
 100 0040 9F91              pop r25
 101 0042 8F91              pop r24
 102 0044 0F90              pop __tmp_reg__
 103 0046 0FBE              out __SREG__,__tmp_reg__
 104 0048 0F90              pop __tmp_reg__
 105 004a 1F90              pop __zero_reg__
 106 004c 1895              reti
 107                /* epilogue end (size=9) */
 108                /* function __vector_4 size 39 (21) */
 110                .Lscope0:
 112                .global Timebase_Init
 114                Timebase_Init:
  35:../avr-lib/drivers/timer/timebase.c **** }
  36:../avr-lib/drivers/timer/timebase.c **** #else
  37:../avr-lib/drivers/timer/timebase.c **** ISR(SIG_OVERFLOW0) {
  38:../avr-lib/drivers/timer/timebase.c ****   TCNT0 = TIMEBASE_RELOAD;
  39:../avr-lib/drivers/timer/timebase.c ****   gMilliSecTick++;
  40:../avr-lib/drivers/timer/timebase.c **** }
  41:../avr-lib/drivers/timer/timebase.c **** #endif
  42:../avr-lib/drivers/timer/timebase.c **** 
  43:../avr-lib/drivers/timer/timebase.c **** 
  44:../avr-lib/drivers/timer/timebase.c **** /*-----------------------------------------------------------------------------
  45:../avr-lib/drivers/timer/timebase.c ****  * Public Functions
  46:../avr-lib/drivers/timer/timebase.c ****  *---------------------------------------------------------------------------*/
  47:../avr-lib/drivers/timer/timebase.c **** 
  48:../avr-lib/drivers/timer/timebase.c **** /**
  49:../avr-lib/drivers/timer/timebase.c ****  * Initializes the timebase. The hardware timer interrupt source will be
  50:../avr-lib/drivers/timer/timebase.c ****  * enabled, but global interrupts need to be enabled by the application.
  51:../avr-lib/drivers/timer/timebase.c ****  */
  52:../avr-lib/drivers/timer/timebase.c **** void Timebase_Init() {
 116                .LM3:
 117                /* prologue: frame size=0 */
 118                /* prologue end (size=0) */
  53:../avr-lib/drivers/timer/timebase.c **** #if defined(TIMER2)
  54:../avr-lib/drivers/timer/timebase.c ****   #if defined(__AVR_ATmega8__)
  55:../avr-lib/drivers/timer/timebase.c ****   #if TIMEBASE_PRESCALE == 64
  56:../avr-lib/drivers/timer/timebase.c ****   TCCR2 = (1<<CS22);  // prescaler: 64
 120                .LM4:
 121 004e 84E0              ldi r24,lo8(4)
 122 0050 85BD              out 69-0x20,r24
  57:../avr-lib/drivers/timer/timebase.c ****   #elif TIMEBASE_PRESCALE == 256
  58:../avr-lib/drivers/timer/timebase.c ****   TCCR2 = (1<<CS22) | (1<<CS21); // prescaler: 256
  59:../avr-lib/drivers/timer/timebase.c ****   #endif
  60:../avr-lib/drivers/timer/timebase.c ****   TCNT2 = TIMEBASE_RELOAD; // set initial reload-value
 124                .LM5:
 125 0052 83E8              ldi r24,lo8(-125)
 126 0054 84BD              out 68-0x20,r24
  61:../avr-lib/drivers/timer/timebase.c ****   TIFR  |= (1<<TOV2);  // clear overflow int.
 128                .LM6:
 129 0056 88B7              in r24,88-0x20
 130 0058 8064              ori r24,lo8(64)
 131 005a 88BF              out 88-0x20,r24
  62:../avr-lib/drivers/timer/timebase.c ****   TIMSK |= (1<<TOIE2); // enable overflow-interrupt
 133                .LM7:
 134 005c 89B7              in r24,89-0x20
 135 005e 8064              ori r24,lo8(64)
 136 0060 89BF              out 89-0x20,r24
 137                /* epilogue: frame size=0 */
 138 0062 0895              ret
 139                /* epilogue end (size=1) */
 140                /* function Timebase_Init size 11 (10) */
 142                .Lscope1:
 144                .global Timebase_CurrentTime
 146                Timebase_CurrentTime:
  63:../avr-lib/drivers/timer/timebase.c ****   #endif
  64:../avr-lib/drivers/timer/timebase.c ****   
  65:../avr-lib/drivers/timer/timebase.c ****   #if defined(__AVR_ATmega88__)
  66:../avr-lib/drivers/timer/timebase.c ****   #if TIMEBASE_PRESCALE == 64
  67:../avr-lib/drivers/timer/timebase.c ****   TCCR2B = (1<<CS22); // prescaler: 64
  68:../avr-lib/drivers/timer/timebase.c ****   #elif TIMEBASE_PRESCALE == 256
  69:../avr-lib/drivers/timer/timebase.c ****   TCCR2B = (1<<CS22)|(1<<CS21);               // prescaler: 256
  70:../avr-lib/drivers/timer/timebase.c ****   #endif
  71:../avr-lib/drivers/timer/timebase.c ****   TCNT2 = TIMEBASE_RELOAD; // set initial reload-value
  72:../avr-lib/drivers/timer/timebase.c ****   TIFR2  |= (1<<TOV2);  // clear overflow int.
  73:../avr-lib/drivers/timer/timebase.c ****   TIMSK2 |= (1<<TOIE2); // enable overflow-interrupt
  74:../avr-lib/drivers/timer/timebase.c ****   #endif
  75:../avr-lib/drivers/timer/timebase.c **** #else /* Use timer0 */
  76:../avr-lib/drivers/timer/timebase.c ****   #if defined(__AVR_ATmega8__)
  77:../avr-lib/drivers/timer/timebase.c ****   #if TIMEBASE_PRESCALE == 64
  78:../avr-lib/drivers/timer/timebase.c ****   TCCR0 = (1<<CS01) | (1<<CS00);  // prescaler: 64
  79:../avr-lib/drivers/timer/timebase.c ****   #elif TIMEBASE_PRESCALE == 256
  80:../avr-lib/drivers/timer/timebase.c ****   TCCR0 = (1<<CS02);              // prescaler: 256
  81:../avr-lib/drivers/timer/timebase.c ****   #endif
  82:../avr-lib/drivers/timer/timebase.c ****   TCNT0 = TIMEBASE_RELOAD; // set initial reload-value
  83:../avr-lib/drivers/timer/timebase.c ****   TIFR  |= (1<<TOV0);  // clear overflow int.
  84:../avr-lib/drivers/timer/timebase.c ****   TIMSK |= (1<<TOIE0); // enable overflow-interrupt
  85:../avr-lib/drivers/timer/timebase.c ****   #endif
  86:../avr-lib/drivers/timer/timebase.c ****   
  87:../avr-lib/drivers/timer/timebase.c ****   #if defined(__AVR_ATmega88__)
  88:../avr-lib/drivers/timer/timebase.c ****   #if TIMEBASE_PRESCALE == 64
  89:../avr-lib/drivers/timer/timebase.c ****   TCCR0B = (1<<CS01) | (1<<CS00); // prescaler: 64
  90:../avr-lib/drivers/timer/timebase.c ****   #elif TIMEBASE_PRESCALE == 256
  91:../avr-lib/drivers/timer/timebase.c ****   TCCR0B = (1<<CS02);             // prescaler: 256
  92:../avr-lib/drivers/timer/timebase.c ****   #endif
  93:../avr-lib/drivers/timer/timebase.c ****   TCNT0 = TIMEBASE_RELOAD; // set initial reload-value
  94:../avr-lib/drivers/timer/timebase.c ****   TIFR0  |= (1<<TOV0);  // clear overflow int.
  95:../avr-lib/drivers/timer/timebase.c ****   TIMSK0 |= (1<<TOIE0); // enable overflow-interrupt
  96:../avr-lib/drivers/timer/timebase.c ****     #endif
  97:../avr-lib/drivers/timer/timebase.c **** #endif
  98:../avr-lib/drivers/timer/timebase.c **** }
  99:../avr-lib/drivers/timer/timebase.c **** 
 100:../avr-lib/drivers/timer/timebase.c **** 
 101:../avr-lib/drivers/timer/timebase.c **** /**
 102:../avr-lib/drivers/timer/timebase.c ****  * Reads the current time.
 103:../avr-lib/drivers/timer/timebase.c ****  * 
 104:../avr-lib/drivers/timer/timebase.c ****  * @return
 105:../avr-lib/drivers/timer/timebase.c ****  *        The current time in milliseconds (32bit value).
 106:../avr-lib/drivers/timer/timebase.c ****  */
 107:../avr-lib/drivers/timer/timebase.c **** uint32_t Timebase_CurrentTime(void) {
 148                .LM8:
 149                /* prologue: frame size=0 */
 150                /* prologue end (size=0) */
 108:../avr-lib/drivers/timer/timebase.c ****   uint8_t sreg;
 109:../avr-lib/drivers/timer/timebase.c ****   uint16_t res;
 110:../avr-lib/drivers/timer/timebase.c ****   sreg=SREG;
 152                .LM9:
 153 0064 2FB7              in r18,95-0x20
 111:../avr-lib/drivers/timer/timebase.c ****   cli();
 155                .LM10:
 156                /* #APP */
 157 0066 F894              cli
 112:../avr-lib/drivers/timer/timebase.c ****   res = gMilliSecTick;
 159                .LM11:
 160                /* #NOAPP */
 161 0068 6091 0000         lds r22,gMilliSecTick
 162 006c 7091 0000         lds r23,(gMilliSecTick)+1
 163 0070 8091 0000         lds r24,(gMilliSecTick)+2
 164 0074 9091 0000         lds r25,(gMilliSecTick)+3
 113:../avr-lib/drivers/timer/timebase.c ****   SREG=sreg;
 166                .LM12:
 167 0078 2FBF              out 95-0x20,r18
 168 007a 8827              clr r24
 169 007c 9927              clr r25
 170                /* epilogue: frame size=0 */
 171 007e 0895              ret
 172                /* epilogue end (size=1) */
 173                /* function Timebase_CurrentTime size 15 (14) */
 178                .Lscope2:
 181                .global Timebase_PassedTimeMillis
 183                Timebase_PassedTimeMillis:
 114:../avr-lib/drivers/timer/timebase.c ****   return res;
 115:../avr-lib/drivers/timer/timebase.c **** }
 116:../avr-lib/drivers/timer/timebase.c **** 
 117:../avr-lib/drivers/timer/timebase.c **** 
 118:../avr-lib/drivers/timer/timebase.c **** /**
 119:../avr-lib/drivers/timer/timebase.c ****  * Checks how much time has passed since a given timestamp.
 120:../avr-lib/drivers/timer/timebase.c ****  * 
 121:../avr-lib/drivers/timer/timebase.c ****  * @param t0
 122:../avr-lib/drivers/timer/timebase.c ****  *        The timestamp.
 123:../avr-lib/drivers/timer/timebase.c ****  * @return
 124:../avr-lib/drivers/timer/timebase.c ****  *        Number of milliseconds that have passed since t0.
 125:../avr-lib/drivers/timer/timebase.c ****  */ 
 126:../avr-lib/drivers/timer/timebase.c **** uint32_t Timebase_PassedTimeMillis(uint32_t t0) {
 185                .LM13:
 186                /* prologue: frame size=0 */
 187                /* prologue end (size=0) */
 127:../avr-lib/drivers/timer/timebase.c ****   uint8_t sreg;
 128:../avr-lib/drivers/timer/timebase.c ****   uint16_t res;
 129:../avr-lib/drivers/timer/timebase.c ****   sreg=SREG;
 189                .LM14:
 190 0080 EFB7              in r30,95-0x20
 130:../avr-lib/drivers/timer/timebase.c ****   cli();
 192                .LM15:
 193                /* #APP */
 194 0082 F894              cli
 131:../avr-lib/drivers/timer/timebase.c ****   res = (uint16_t)(gMilliSecTick-t0);
 196                .LM16:
 197                /* #NOAPP */
 198 0084 2091 0000         lds r18,gMilliSecTick
 199 0088 3091 0000         lds r19,(gMilliSecTick)+1
 200 008c 4091 0000         lds r20,(gMilliSecTick)+2
 201 0090 5091 0000         lds r21,(gMilliSecTick)+3
 132:../avr-lib/drivers/timer/timebase.c ****   SREG=sreg;
 203                .LM17:
 204 0094 EFBF              out 95-0x20,r30
 205 0096 261B              sub r18,r22
 206 0098 370B              sbc r19,r23
 207 009a B901              movw r22,r18
 208 009c 8827              clr r24
 209 009e 9927              clr r25
 210                /* epilogue: frame size=0 */
 211 00a0 0895              ret
 212                /* epilogue end (size=1) */
 213                /* function Timebase_PassedTimeMillis size 18 (17) */
 218                .Lscope3:
 219                    .comm gMilliSecTick,4,1
 222                .Letext0:
 223                /* File "../avr-lib/drivers/timer/timebase.c": code   83 = 0x0053 (  62), prologues   9, epilogues 
DEFINED SYMBOLS
                            *ABS*:00000000 timebase.c
     /tmp/ccrzEiEW.s:3      *ABS*:0000003f __SREG__
     /tmp/ccrzEiEW.s:4      *ABS*:0000003e __SP_H__
     /tmp/ccrzEiEW.s:5      *ABS*:0000003d __SP_L__
     /tmp/ccrzEiEW.s:6      *ABS*:00000000 __tmp_reg__
     /tmp/ccrzEiEW.s:7      *ABS*:00000001 __zero_reg__
     /tmp/ccrzEiEW.s:66     .text:00000000 __vector_4
                            *COM*:00000004 gMilliSecTick
     /tmp/ccrzEiEW.s:114    .text:0000004e Timebase_Init
     /tmp/ccrzEiEW.s:146    .text:00000064 Timebase_CurrentTime
     /tmp/ccrzEiEW.s:183    .text:00000080 Timebase_PassedTimeMillis

UNDEFINED SYMBOLS
__do_copy_data
__do_clear_bss