📄 os_cpu_c.lst
字号:
C51 COMPILER V7.02a OS_CPU_C 10/16/2006 15:27:52 PAGE 1
C51 COMPILER V7.02a, COMPILATION OF MODULE OS_CPU_C
OBJECT MODULE PLACED IN .\OS_CPU_C.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE ..\uc_51\OS_CPU_C.C BROWSE DEBUG OBJECTEXTEND PRINT(.\OS_CPU_C.lst) OBJECT(
-.\OS_CPU_C.obj)
stmt level source
1 /*
2 *********************************************************************************************************
3 * uC/OS-II
4 * The Real-Time Kernel
5 *
6 * (c) Copyright 1992-1998, Jean J. Labrosse, Plantation, FL
7 * All Rights Reserved
8 *
9 *
10 * KeilC51 Specific code
11 * SMALL MEMORY MODEL
12 *
13 * File : OS_CPU_C.C
14 * By : Jean J. Labrosse
15 * Refer to Code Written By : Yang Yi (http://www.zlgmcu.com/philips/philips-embedsys.asp)
16 * Port to KeilC51 Small Mode By : Li Zhanglin (wzzlin@nankai.edu.cn)
17 *********************************************************************************************************
18 */
19 #define OS_CPU_GLOBALS
20 #include "..\uc_os_II\includes.h"
21 extern void MboxPost();
22 /*
23 *********************************************************************************************************
24 * OSTaskStkInit
25 *
26 * Description: Init stack before task running.
27 *
28 * Arguments : task is a pointer to the task code
29 *
30 * pdata is a pointer to a user supplied data area that will be passed to the task
31 * when the task first executes.
32 *
33 * ptos is a pointer to the top of stack. It is assumed that 'ptos' points to
34 * a 'free' entry on the task stack. If OS_STK_GROWTH is set to 1 then
35 * 'ptos' will contain the HIGHEST valid address of the stack. Similarly, if
36 * OS_STK_GROWTH is set to 0, the 'ptos' will contains the LOWEST valid address
37 * of the stack.
38 *
39 * opt specifies options that can be used to alter the behavior of OSTaskStkInit().
40 * (see uCOS_II.H for OS_TASK_OPT_???).
41 *
42 * Returns : Always returns the bottom of stack.
43 *
44 * Note(s) : 1) stack stored as following format
45
46 ; CONTENT START POSITION IN OSTCBStk
47 ; ---------- ----------------------
48 ; AR7
49 ; AR6
50 ; AR5
51 ; AR4
52 ; AR3
53 ; AR2
54 ; AR1
C51 COMPILER V7.02a OS_CPU_C 10/16/2006 15:27:52 PAGE 2
55 ; AR0
56 ; PSW
57 ; DPL
58 ; DPH
59 ; B
60 ; ACC
61 ; HARDWARE STACK CONTENT(NOT INCLUDE REGISTERS) 2+SmltStkSize
62 ; HARDWARE STACK SIZE(INCLUDE REGISTERS) 1+SmltStkSize
63 ; SIMULATED STACK CONTENT 1
64 ; ?C_IBP 0
65
66 *********************************************************************************************************
67 */
68
69 void DT_XDATA *OSTaskStkInit (void (DT_CODE *task)(void DT_XDATA *pd), void DT_XDATA *ppdata, void DT_XDAT
-A *ptos, INT16U opt) REENTRANT
70 {
71 1 OS_STK DT_XDATA *stk;
72 1
73 1 ppdata = ppdata;
74 1 opt = opt;
75 1
76 1 stk = (OS_STK DT_XDATA *)ptos; /* bottom of stack */
77 1 *stk++ = (0xFF + 1); /* C_IBP */
78 1 /* simulated stack size == 0 */
79 1 *stk++ = 2 + 13; /* tow bytes of return address and 13 byte registers */
80 1 *stk++ = (INT16U)task & 0xFF; /* low byte of return address */
81 1 *stk++ = (INT16U)task >> 8; /* high byte of return address */
82 1 *stk++ = 0x0A; /* ACC */
83 1 *stk++ = 0x0B; /* B */
84 1 *stk++ = 0xD1; /* DPH */
85 1 *stk++ = 0xD0; /* DPL */
86 1 *stk++ = 0x00; /* PSW */
87 1 *stk++ = 0x00; /* R0 */
88 1 *stk++ = 0x01; /* R1 */
89 1 *stk++ = 0x02; /* R2 */
90 1 *stk++ = 0x03; /* R3 */
91 1 *stk++ = 0x04; /* R4 */
92 1 *stk++ = 0x05; /* R5 */
93 1 *stk++ = 0x06; /* R6 */
94 1 *stk++ = 0x07; /* R7 */
95 1
96 1 return ((void DT_XDATA *)ptos); /* note return ptos, not stk */
97 1 }
98
99 /*
100 *********************************************************************************************************
101 * OS Time ISR
102 *
103 * Description: use T0.
104 *
105 * Arguments :
106 *
107 * Note(s) : in default, OSTickISR using register bank 0. Register pushing code will added by keilC.
108 *********************************************************************************************************
109 */
110 extern OS_EVENT *DispSem;
111 void OSTickISR() interrupt 1
112 {
113 1
114 1 TL0 = TIMER_24M_25MS_L;
115 1 TH0 = TIMER_24M_25MS_H;//15mHZ,10ms定时，任务切换100次/秒
C51 COMPILER V7.02a OS_CPU_C 10/16/2006 15:27:52 PAGE 3
116 1 //TF0 = 0;
117 1 // OSSemPost(DispSem);
118 1 //SBUF = 0X55;
119 1 OSIntEnter();
120 1 OSTimeTick();
121 1 OSIntExit();
122 1 }
123
124
125 /*$PAGE*/
126 #if OS_CPU_HOOKS_EN
127 /*
128 *********************************************************************************************************
129 * TASK CREATION HOOK
130 *
131 * Description: This function is called when a task is created.
132 *
133 * Arguments : ptcb is a pointer to the task control block of the task being created.
134 *
135 * Note(s) : 1) Interrupts are disabled during this call.
136 *********************************************************************************************************
137 */
138 void OSTaskCreateHook (OS_TCB DT_XDATA *ptcb) REENTRANT
139 {
140 1 ptcb = ptcb; /* Prevent compiler warning */
141 1 }
142
143
144 /*
145 *********************************************************************************************************
146 * TASK DELETION HOOK
147 *
148 * Description: This function is called when a task is deleted.
149 *
150 * Arguments : ptcb is a pointer to the task control block of the task being deleted.
151 *
152 * Note(s) : 1) Interrupts are disabled during this call.
153 *********************************************************************************************************
154 */
155 void OSTaskDelHook (OS_TCB DT_XDATA *ptcb) REENTRANT
156 {
157 1 ptcb = ptcb; /* Prevent compiler warning */
158 1 }
159
160 /*
161 *********************************************************************************************************
162 * TASK SWITCH HOOK
163 *
164 * Description: This function is called when a task switch is performed. This allows you to perform other
165 * operations during a context switch.
166 *
167 * Arguments : none
168 *
169 * Note(s) : 1) Interrupts are disabled during this call.
170 * 2) It is assumed that the global pointer 'OSTCBHighRdy' points to the TCB of the task that
171 * will be 'switched in' (i.e. the highest priority task) and, 'OSTCBCur' points to the
172 * task being switched out (i.e. the preempted task).
173 *********************************************************************************************************
174 */
175 void OSTaskSwHook (void) REENTRANT
176 {
177 1 }
C51 COMPILER V7.02a OS_CPU_C 10/16/2006 15:27:52 PAGE 4
178
179 /*
180 *********************************************************************************************************
181 * STATISTIC TASK HOOK
182 *
183 * Description: This function is called every second by uC/OS-II's statistics task. This allows your
184 * application to add functionality to the statistics task.
185 *
186 * Arguments : none
187 *********************************************************************************************************
188 */
189 void OSTaskStatHook (void) REENTRANT
190 {
191 1 }
192
193 /*
194 *********************************************************************************************************
195 * TICK HOOK
196 *
197 * Description: This function is called every tick.
198 *
199 * Arguments : none
200 *
201 * Note(s) : 1) Interrupts may or may not be ENABLED during this call.
202 *********************************************************************************************************
203 */
204 void OSTimeTickHook (void) REENTRANT
205 {
206 1 }
207 #endif
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 572 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- ----
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -