📄 os_cpu.lst
字号:
1 .file "os_cpu.c"
2 .arch at90s8515
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 InitOSTimer
66 InitOSTimer:
1:C:/WinAVR/minOS_WinAVR/os_cpu.c **** /*
2:C:/WinAVR/minOS_WinAVR/os_cpu.c **** ***************************************************************************************************
3:C:/WinAVR/minOS_WinAVR/os_cpu.c **** * minOS 0.01v
4:C:/WinAVR/minOS_WinAVR/os_cpu.c **** * The Real-Time OS Kernel
5:C:/WinAVR/minOS_WinAVR/os_cpu.c **** * All Rights Reserved
6:C:/WinAVR/minOS_WinAVR/os_cpu.c **** * File : OS_CPU.C
7:C:/WinAVR/minOS_WinAVR/os_cpu.c **** * 作者 : 21icbbs网友 LM7556 ,2004年7月 by : LM7556 , China , 2004-2004
8:C:/WinAVR/minOS_WinAVR/os_cpu.c **** *
9:C:/WinAVR/minOS_WinAVR/os_cpu.c **** ***************************************************************************************************
10:C:/WinAVR/minOS_WinAVR/os_cpu.c **** */
11:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
12:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
13:C:/WinAVR/minOS_WinAVR/os_cpu.c **** #define OS_CPU_GLOBALS
14:C:/WinAVR/minOS_WinAVR/os_cpu.c **** #include "OS_Includes.h"
15:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
16:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //#pragma interrupt_handler OSTickISR:8 //uses Timer0 for time ticks.
17:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
18:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //;CPU specific definitions
19:C:/WinAVR/minOS_WinAVR/os_cpu.c **** #define C51_CRYSTAL_FREQ 4000000ul
20:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //;Determine the reload values for timer 0 this is automated by the next macro
21:C:/WinAVR/minOS_WinAVR/os_cpu.c **** #define T0_RELOAD C51_CRYSTAL_FREQ / OS_TICKS_PER_SEC / 1024
22:C:/WinAVR/minOS_WinAVR/os_cpu.c **** #define T0_TCNT0 (256 - (T0_RELOAD & 0xff))
23:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //Initial OS Timer for time ticks --- 初始化时间节拍定时器。
24:C:/WinAVR/minOS_WinAVR/os_cpu.c **** void InitOSTimer(void)
25:C:/WinAVR/minOS_WinAVR/os_cpu.c **** {
68 .LM1:
69 /* prologue: frame size=0 */
70 /* prologue end (size=0) */
26:C:/WinAVR/minOS_WinAVR/os_cpu.c **** TIMSK |= (1<<1); // set T0IE0
72 .LM2:
73 0000 89B7 in r24,89-0x20
74 0002 8260 ori r24,lo8(2)
75 0004 89BF out 89-0x20,r24
27:C:/WinAVR/minOS_WinAVR/os_cpu.c **** TCCR0 = 0x05; // CTC0=CK/1024
77 .LM3:
78 0006 85E0 ldi r24,lo8(5)
79 0008 83BF out 83-0x20,r24
28:C:/WinAVR/minOS_WinAVR/os_cpu.c **** TCNT0 = T0_TCNT0; // (256 - (T0_RELOAD & 0xff))
81 .LM4:
82 000a 8AE7 ldi r24,lo8(122)
83 000c 82BF out 82-0x20,r24
29:C:/WinAVR/minOS_WinAVR/os_cpu.c **** SREG |= (1<<7); // SEI
85 .LM5:
86 000e 8FB7 in r24,95-0x20
87 0010 8068 ori r24,lo8(-128)
88 0012 8FBF out 95-0x20,r24
89 /* epilogue: frame size=0 */
90 0014 0895 ret
91 /* epilogue end (size=1) */
92 /* function InitOSTimer size 11 (10) */
98 .global OSTaskCreate
100 OSTaskCreate:
30:C:/WinAVR/minOS_WinAVR/os_cpu.c **** }
31:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
32:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //建立一个任务(Create a Task)。
33:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //Inport : tFunc --- function address , tStk --- stack bottom , prio --- Priority .
34:C:/WinAVR/minOS_WinAVR/os_cpu.c **** void OSTaskCreate (void (*tFunc)(void) , OS_STK *tStk, INT8U prio)
35:C:/WinAVR/minOS_WinAVR/os_cpu.c **** {
102 .LM6:
103 /* prologue: frame size=0 */
104 0016 CF93 push r28
105 0018 DF93 push r29
106 /* prologue end (size=2) */
107 001a 282F mov r18,r24
108 001c 392F mov r19,r25
109 001e F72F mov r31,r23
110 0020 E62F mov r30,r22
111 0022 842F mov r24,r20
36:C:/WinAVR/minOS_WinAVR/os_cpu.c **** OSTCB[prio].OSTaskStatus = OS_TASK_Rdy;
113 .LM7:
114 0024 9927 clr r25
115 0026 B92F mov r27,r25
116 0028 A82F mov r26,r24
117 002a AA0F lsl r26
118 002c BB1F rol r27
119 002e AA0F lsl r26
120 0030 BB1F rol r27
121 0032 A80F add r26,r24
122 0034 B91F adc r27,r25
123 0036 A050 subi r26,lo8(-(OSTCB))
124 0038 B040 sbci r27,hi8(-(OSTCB))
125 003a 8CEF ldi r24,lo8(-4)
126 003c DB2F mov r29,r27
127 003e CA2F mov r28,r26
128 0040 8A83 std Y+2,r24
37:C:/WinAVR/minOS_WinAVR/os_cpu.c **** OSTCB[prio].OSStkTop = (INT16U)tStk-1 /* Initial value when main was called */
130 .LM8:
131 0042 3F97 sbiw r30,15
132 0044 ED93 st X+,r30
133 0046 FC93 st X,r31
134 0048 3F96 adiw r30,15
38:C:/WinAVR/minOS_WinAVR/os_cpu.c **** -12 /* reserve for to save R0-R5 , R26-R31 registers */
39:C:/WinAVR/minOS_WinAVR/os_cpu.c **** -sizeof(INT16U) /* The PC value to be loaded */
40:C:/WinAVR/minOS_WinAVR/os_cpu.c **** ;
41:C:/WinAVR/minOS_WinAVR/os_cpu.c **** *--tStk = (INT16U const)tFunc & 0xff; /* Save low byte of task function address */
136 .LM9:
137 004a 2293 st -Z,r18
42:C:/WinAVR/minOS_WinAVR/os_cpu.c **** *--tStk = (INT16U const)tFunc / 0x100; /* Save high byte of task function address */
139 .LM10:
140 004c 3197 sbiw r30,1
141 004e 832F mov r24,r19
142 0050 9927 clr r25
143 0052 8083 st Z,r24
144 /* epilogue: frame size=0 */
145 0054 DF91 pop r29
146 0056 CF91 pop r28
147 0058 0895 ret
148 /* epilogue end (size=3) */
149 /* function OSTaskCreate size 34 (29) */
152 .global OSCtxSw
154 OSCtxSw:
43:C:/WinAVR/minOS_WinAVR/os_cpu.c **** }
44:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
45:C:/WinAVR/minOS_WinAVR/os_cpu.c **** static unsigned int SaveSP; //用于保存需恢复的SP,在OSTickISR或用户中断结束做任务切换时，恢复SP.
46:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
47:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //context switch interrupt --- 软中断任务切换
48:C:/WinAVR/minOS_WinAVR/os_cpu.c **** void OSCtxSw(void)
49:C:/WinAVR/minOS_WinAVR/os_cpu.c **** {
156 .LM11:
157 /* prologue: frame size=0 */
158 /* prologue end (size=0) */
50:C:/WinAVR/minOS_WinAVR/os_cpu.c **** //asm("in %0, %1" : "=r" (value) : "I" (PORTD) : );
51:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
52:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R31");
160 .LM12:
161 /* #APP */
162 005a FF93 PUSH R31
53:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R30");
164 .LM13:
165 005c EF93 PUSH R30
54:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R29");
167 .LM14:
168 005e DF93 PUSH R29
55:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R28");
170 .LM15:
171 0060 CF93 PUSH R28
56:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R27");
173 .LM16:
174 0062 BF93 PUSH R27
57:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R26");
176 .LM17:
177 0064 AF93 PUSH R26
58:C:/WinAVR/minOS_WinAVR/os_cpu.c ****
59:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R0");
179 .LM18:
180 0066 0F92 PUSH R0
60:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R1");
182 .LM19:
183 0068 1F92 PUSH R1
61:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R2");
185 .LM20:
186 006a 2F92 PUSH R2
62:C:/WinAVR/minOS_WinAVR/os_cpu.c **** asm("PUSH R3");
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