os_cpu.src

MinOS嵌入式操作系统,C/C++源代码!基于KeilC51编译器.

; .\OS_CPU.SRC generated from: OS_CPU.C
; COMPILER INVOKED BY:
;        C:\KEIL\C51\BIN\C51.EXE OS_CPU.C BROWSE DEBUG OBJECTEXTEND SRC(.\OS_CPU.SRC)

$NOMOD51

NAME	OS_CPU

P0	DATA	080H
P1	DATA	090H
P2	DATA	0A0H
P3	DATA	0B0H
T0	BIT	0B0H.4
AC	BIT	0D0H.6
T1	BIT	0B0H.5
T2	BIT	090H.0
EA	BIT	0A8H.7
IE	DATA	0A8H
EXF2	BIT	0C8H.6
RD	BIT	0B0H.7
ES	BIT	0A8H.4
IP	DATA	0B8H
RI	BIT	098H.0
INT0	BIT	0B0H.2
CY	BIT	0D0H.7
TI	BIT	098H.1
INT1	BIT	0B0H.3
RCAP2H	DATA	0CBH
PS	BIT	0B8H.4
SP	DATA	081H
T2EX	BIT	090H.1
OV	BIT	0D0H.2
RCAP2L	DATA	0CAH
C_T2	BIT	0C8H.1
WR	BIT	0B0H.6
RCLK	BIT	0C8H.5
TCLK	BIT	0C8H.4
SBUF	DATA	099H
PCON	DATA	087H
SCON	DATA	098H
TMOD	DATA	089H
TCON	DATA	088H
IE0	BIT	088H.1
IE1	BIT	088H.3
B	DATA	0F0H
CP_RL2	BIT	0C8H.0
ACC	DATA	0E0H
ET0	BIT	0A8H.1
ET1	BIT	0A8H.3
TF0	BIT	088H.5
ET2	BIT	0A8H.5
TF1	BIT	088H.7
TF2	BIT	0C8H.7
RB8	BIT	098H.2
TH0	DATA	08CH
EX0	BIT	0A8H.0
IT0	BIT	088H.0
TH1	DATA	08DH
TB8	BIT	098H.3
EX1	BIT	0A8H.2
IT1	BIT	088H.2
TH2	DATA	0CDH
P	BIT	0D0H.0
SM0	BIT	098H.7
TL0	DATA	08AH
SM1	BIT	098H.6
TL1	DATA	08BH
SM2	BIT	098H.5
TL2	DATA	0CCH
PT0	BIT	0B8H.1
PT1	BIT	0B8H.3
RS0	BIT	0D0H.3
PT2	BIT	0B8H.5
TR0	BIT	088H.4
RS1	BIT	0D0H.4
TR1	BIT	088H.6
TR2	BIT	0C8H.2
PX0	BIT	0B8H.0
PX1	BIT	0B8H.2
DPH	DATA	083H
DPL	DATA	082H
EXEN2	BIT	0C8H.3
REN	BIT	098H.4
T2CON	DATA	0C8H
RXD	BIT	0B0H.0
TXD	BIT	0B0H.1
F0	BIT	0D0H.5
PSW	DATA	0D0H
?PR?InitOSTimer?OS_CPU                   SEGMENT CODE 
?PR?_OSTaskCreate?OS_CPU                 SEGMENT CODE 
?DT?_OSTaskCreate?OS_CPU                 SEGMENT DATA OVERLAYABLE 
?PR?OSCtxSw?OS_CPU   SEGMENT CODE 
?PR?OSTickISR?OS_CPU SEGMENT CODE 
?ID?OS_CPU           SEGMENT IDATA 
	EXTRN	CODE (OSTimeTick)
	EXTRN	CODE (AppTickHook)
	EXTRN	DATA (OS_TASK_HighPri)
	EXTRN	DATA (OS_TASK_CrtPrio)
	EXTRN	DATA (OSTCB)
	EXTRN	CODE (?C?CSTPTR)
	PUBLIC	OSTickISR
	PUBLIC	OSCtxSw
	PUBLIC	?_OSTaskCreate?BYTE
	PUBLIC	_OSTaskCreate
	PUBLIC	InitOSTimer

	RSEG  ?DT?_OSTaskCreate?OS_CPU
?_OSTaskCreate?BYTE:
      tFunc?140:   DS   3
       tStk?141:   DS   3
       prio?142:   DS   1

	RSEG  ?ID?OS_CPU
         SaveSP:   DS   1
; /*
; *********************************************************************************************************
; *                                      minOS 0.01v
; *                                The Real-Time OS Kernel
; *                                  All Rights Reserved
; * File : OS_CPU.C
; * 作者 : 21icbbs网友 LM7556 ,2004年7月   by : LM7556 , China , 2004-2004 
; *
; *********************************************************************************************************
; */
; 
; #define OS_CPU_GLOBALS
; #include "OS_Includes.h"
; 
; 
; //汇编宏_POPA_,_PUSHA_ 用于任务切换时保存和恢复现场。
; #pragma ASM
  		_POPA_	MACRO
  				IRP	REG,	<7, 6, 5, 4, 3, 2, 1, 0, PSW, DPL, DPH, B, ACC>
  				POP	REG
  				ENDM
  		ENDM
  
  		_PUSHA_	MACRO
  			IRP	REG,	<ACC, B, DPH, DPL, PSW, 0, 1, 2, 3, 4, 5, 6, 7>
  			PUSH	REG
  			ENDM
  		ENDM
; #pragma ENDASM
; 
; //;CPU specific definitions 
; #define C51_CRYSTAL_FREQ   11059200ul
; //;Determine the reload values for timer 0 this is automated by the next macro
; #define T0_RELOAD  C51_CRYSTAL_FREQ / OS_TICKS_PER_SEC / 12
; #define T0_RELOADH (65536 - (T0_RELOAD & 65535)) / 256
; #define T0_RELOADL (65536 - (T0_RELOAD & 65535)) & 255
; //Initial OS Timer for time ticks --- 初始化时间节拍定时器。
; void InitOSTimer(void)

	RSEG  ?PR?InitOSTimer?OS_CPU
InitOSTimer:
			; SOURCE LINE # 38
; {
			; SOURCE LINE # 39
;     TMOD=(TMOD & 0XF0) | 0X01;	/* Timer 0 working in MODE 1 */
			; SOURCE LINE # 40
	MOV  	A,TMOD
	ANL  	A,#0F0H
	ORL  	A,#01H
	MOV  	TMOD,A
;     TH0=T0_RELOADH;     //设置Tick次/秒,