📄 os_cpu_a.src
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; .\OS_CPU_A.SRC generated from: OS_CPU_A.C
; COMPILER INVOKED BY:
; C:\Keil\C51\BIN\C51.EXE OS_CPU_A.C LARGE BROWSE DEBUG OBJECTEXTEND SRC(.\OS_CPU_A.SRC)
$NOMOD51
NAME OS_CPU_A
P0 DATA 080H
P1 DATA 090H
P2 DATA 0A0H
P3 DATA 0B0H
T0 BIT 0B0H.4
AC BIT 0D0H.6
T1 BIT 0B0H.5
EA BIT 0A8H.7
IE DATA 0A8H
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
PS BIT 0B8H.4
SP DATA 081H
OV BIT 0D0H.2
WR BIT 0B0H.6
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
ACC DATA 0E0H
ET0 BIT 0A8H.1
ET1 BIT 0A8H.3
TF0 BIT 088H.5
TF1 BIT 088H.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
P BIT 0D0H.0
SM0 BIT 098H.7
TL0 DATA 08AH
SM1 BIT 098H.6
TL1 DATA 08BH
SM2 BIT 098H.5
PT0 BIT 0B8H.1
PT1 BIT 0B8H.3
RS0 BIT 0D0H.3
TR0 BIT 088H.4
RS1 BIT 0D0H.4
TR1 BIT 088H.6
PX0 BIT 0B8H.0
PX1 BIT 0B8H.2
DPH DATA 083H
DPL DATA 082H
REN BIT 098H.4
RXD BIT 0B0H.0
TXD BIT 0B0H.1
F0 BIT 0D0H.5
PSW DATA 0D0H
?PR?OSCtxSw?OS_CPU_A SEGMENT CODE
?PR?OSTickISR?OS_CPU_A SEGMENT CODE
?PR?OSIntCtxSw?OS_CPU_A SEGMENT CODE
?PR?OSStartHighRdy?OS_CPU_A SEGMENT CODE
?PR?_?SerialISR?OS_CPU_A SEGMENT CODE
?XD?OS_CPU_A SEGMENT XDATA
EXTRN XDATA (OSRunning)
EXTRN CODE (_?OSIntExit)
EXTRN CODE (_?serial)
EXTRN XDATA (OSTCBCur)
EXTRN XDATA (OSTCBHighRdy)
EXTRN CODE (_?OSTaskSwHook)
EXTRN CODE (_?OSTimeTick)
EXTRN XDATA (OSPrioCur)
EXTRN CODE (_?OSIntEnter)
EXTRN XDATA (OSPrioHighRdy)
EXTRN DATA (UserSysSP_Start)
EXTRN CODE (?C?PLDPTR)
EXTRN CODE (?C?CSTPTR)
EXTRN CODE (?C?CLDPTR)
PUBLIC UserStkSP_tmp
PUBLIC _?SerialISR
PUBLIC OSStartHighRdy
PUBLIC OSIntCtxSw
PUBLIC OSTickISR
PUBLIC OSCtxSw
RSEG ?XD?OS_CPU_A
UserStkSP_tmp: DS 3
; /*
; *********************************************************************************************************
; * uC/OS-II
; * 实时内核
; *
; * (c) Copyright 1992-1998, Jean J. Labrosse, Plantation, FL
; * 版权所有
; *
; * MCU-51 专用代码
; * KEIL C51大模式编译
; *
; * 文件名 : OS_CPU_A.C
; * 作者 : Jean J. Labrosse
; * 改编 : 柯新 kexin28@126.com 深圳众芯科技有限公司软件部 2007.10.22
; *********************************************************************************************************
; */
;
; //#define OS_CPU_GLOBALS
; #include "includes.h"
;
; OS_STK *UserStkSP_tmp;
;
; #if CXBP_OK>0
; #pragma asm
EXTRN DATA (?C_XBP) ;仿真堆栈指针用于重入局部变量保存
; #pragma endasm
; #endif
;
; #pragma asm
PUSHALL MACRO
PUSH PSW
PUSH ACC
PUSH B
PUSH DPL
PUSH DPH
MOV A,R0 ;R0-R7入栈
PUSH ACC
MOV A,R1
PUSH ACC
MOV A,R2
PUSH ACC
MOV A,R3
PUSH ACC
MOV A,R4
PUSH ACC
MOV A,R5
PUSH ACC
MOV A,R6
PUSH ACC
MOV A,R7
PUSH ACC
ENDM
; #pragma endasm
;
; #pragma asm
POPALL MACRO
POP ACC ;R0-R7出栈
MOV R7,A
POP ACC
MOV R6,A
POP ACC
MOV R5,A
POP ACC
MOV R4,A
POP ACC
MOV R3,A
POP ACC
MOV R2,A
POP ACC
MOV R1,A
POP ACC
MOV R0,A
POP DPH
POP DPL
POP B
POP ACC
POP PSW
ENDM
; #pragma endasm
;
; void OSCtxSw(void)
RSEG ?PR?OSCtxSw?OS_CPU_A
OSCtxSw:
USING 0
; SOURCE LINE # 89
; {
; SOURCE LINE # 90
; OS_STK idata *SysStkSP;
; OS_STK *UserStkSP;
; INT8U STKCount;
;
; #pragma asm
; PUSHALL
PUSHALL
; #pragma endasm
;
; SysStkSP=UserSysSP_Start;
; SOURCE LINE # 99
MOV R7,UserSysSP_Start
;---- Variable 'SysStkSP?040' assigned to Register 'R7' ----
; STKCount=SP-UserSysSP_Start;
; SOURCE LINE # 100
CLR C
MOV A,SP
SUBB A,UserSysSP_Start
MOV R6,A
;---- Variable 'STKCount?042' assigned to Register 'R6' ----
; UserStkSP=OSTCBCur->OSTCBStkPtr;
; SOURCE LINE # 101
MOV DPTR,#OSTCBCur
MOVX A,@DPTR
MOV R3,A
INC DPTR
MOVX A,@DPTR
MOV R2,A
INC DPTR
MOVX A,@DPTR
MOV R1,A
LCALL ?C?PLDPTR
;---- Variable 'UserStkSP?041' assigned to Register 'R1/R2/R3' ----
;
; *UserStkSP=STKCount;
; SOURCE LINE # 103
MOV A,R6
LCALL ?C?CSTPTR
?C0003:
;
; do
; {
; SOURCE LINE # 106
; SysStkSP++;
; SOURCE LINE # 107
INC R7
; UserStkSP++;
; SOURCE LINE # 108
MOV A,#01H
ADD A,R1
MOV R1,A
CLR A
ADDC A,R2
MOV R2,A
; *UserStkSP=*SysStkSP;
; SOURCE LINE # 109
MOV R0,AR7
MOV A,@R0
LCALL ?C?CSTPTR
; STKCount--;
; SOURCE LINE # 110
DJNZ R6,?C0003
; }while(STKCount!=0);
; SOURCE LINE # 111
;
; #if CXBP_OK>0
; UserStkSP++;
; SOURCE LINE # 114
MOV A,#01H
ADD A,R1
MOV R1,A
CLR A
ADDC A,R2
MOV R2,A
; UserStkSP_tmp=UserStkSP;
; SOURCE LINE # 115
MOV DPTR,#UserStkSP_tmp
MOV A,R3
MOVX @DPTR,A
INC DPTR
MOV A,R2
MOVX @DPTR,A
INC DPTR
MOV A,R1
MOVX @DPTR,A
; #pragma asm
; MOV R0,#LOW (UserStkSP_tmp)
MOV R0,#LOW (UserStkSP_tmp)
; ;MOV R0,#UserStkSP_tmp
;MOV R0,#UserStkSP_tmp
; ;INC R0
;INC R0
; ;MOV DPH,@R0 ;变量 UserStkSP_tmp 在IDATA中
;MOV DPH,@R0 ;变量 UserStkSP_tmp 在IDATA中
; ;INC R0
;INC R0
; ;MOV DPL,@R0
;MOV DPL,@R0
;
; ;保存仿真堆栈指针?C_XBP
;保存仿真堆栈指针?C_XBP
; MOV A,?C_XBP ;?C_XBP 仿真堆栈指针高8位
MOV A,?C_XBP ;?C_XBP 仿真堆栈指针高8位
; ;MOVX @DPTR,A
;MOVX @DPTR,A
; MOVX @R0,A
MOVX @R0,A
; INC R0
INC R0
; ;INC DPTR
;INC DPTR
; MOV A,?C_XBP+1 ;?C_XBP 仿真堆栈指针低8位
MOV A,?C_XBP+1 ;?C_XBP 仿真堆栈指针低8位
; ;MOVX @DPTR,A
;MOVX @DPTR,A
; MOVX @R0,A
MOVX @R0,A
; #pragma endasm
; #endif
; OSTaskSwHook();
; SOURCE LINE # 135
LCALL _?OSTaskSwHook
;
;
; OSTCBCur=OSTCBHighRdy;
; SOURCE LINE # 138
MOV DPTR,#OSTCBHighRdy
MOVX A,@DPTR
MOV R1,A
INC DPTR
MOVX A,@DPTR
MOV R2,A
INC DPTR
MOVX A,@DPTR
MOV DPTR,#OSTCBCur
XCH A,R1
MOVX @DPTR,A
INC DPTR
MOV A,R2
MOVX @DPTR,A
INC DPTR
MOV A,R1
MOVX @DPTR,A
; OSPrioCur=OSPrioHighRdy;
; SOURCE LINE # 139
MOV DPTR,#OSPrioHighRdy
MOVX A,@DPTR
MOV DPTR,#OSPrioCur
MOVX @DPTR,A
;
; UserStkSP=OSTCBCur->OSTCBStkPtr;
; SOURCE LINE # 141
MOV DPTR,#OSTCBCur
MOVX A,@DPTR
MOV R3,A
INC DPTR
MOVX A,@DPTR
MOV R2,A
INC DPTR
MOVX A,@DPTR
MOV R1,A
LCALL ?C?PLDPTR
; SysStkSP=UserSysSP_Start;
; SOURCE LINE # 142
MOV R7,UserSysSP_Start
; STKCount=*UserStkSP;
; SOURCE LINE # 143
LCALL ?C?CLDPTR
MOV R6,A
;
; SP=UserSysSP_Start+STKCount;
; SOURCE LINE # 145
ADD A,UserSysSP_Start
MOV SP,A
?C0006:
;
; do{
; SOURCE LINE # 147
; UserStkSP++;
; SOURCE LINE # 148
MOV A,#01H
ADD A,R1
MOV R1,A
CLR A
ADDC A,R2
MOV R2,A
; SysStkSP++;
; SOURCE LINE # 149
INC R7
; *SysStkSP=*UserStkSP;
; SOURCE LINE # 150
LCALL ?C?CLDPTR
MOV R0,AR7
MOV @R0,A
; STKCount--;
; SOURCE LINE # 151
DJNZ R6,?C0006
; }while(STKCount!=0);
; SOURCE LINE # 152
;
; #if CXBP_OK>0
; UserStkSP++;
; SOURCE LINE # 155
MOV A,#01H
ADD A,R1
MOV R1,A
CLR A
ADDC A,R2
MOV R2,A
; UserStkSP_tmp=UserStkSP;
; SOURCE LINE # 156
MOV DPTR,#UserStkSP_tmp
MOV A,R3
MOVX @DPTR,A
INC DPTR
MOV A,R2
MOVX @DPTR,A
INC DPTR
MOV A,R1
MOVX @DPTR,A
; #pragma asm
; MOV R0,#LOW (UserStkSP_tmp)
MOV R0,#LOW (UserStkSP_tmp)
; ;MOV R0,#UserStkSP_tmp
;MOV R0,#UserStkSP_tmp
; ;INC R0
;INC R0
; ;MOV DPH,@R0 ;变量UserStkSP在IDATA中
;MOV DPH,@R0 ;变量UserStkSP在IDATA中
; ;INC R0
;INC R0
; ;MOV DPL,@R0
;MOV DPL,@R0
;
; ;MOVX A,@DPTR
;MOVX A,@DPTR
; MOVX A,@R0
MOVX A,@R0
; MOV ?C_XBP,A ;?C_XBP 仿真堆栈指针高8位
MOV ?C_XBP,A ;?C_XBP 仿真堆栈指针高8位
; ;INC DPTR
;INC DPTR
; INC R0
INC R0
; ;MOVX A,@DPTR
;MOVX A,@DPTR
; MOVX A,@R0
MOVX A,@R0
; MOV ?C_XBP+1,A ;?C_XBP 仿真堆栈指针低8位
MOV ?C_XBP+1,A ;?C_XBP 仿真堆栈指针低8位
; #pragma endasm
; #endif
;
; #pragma asm
; POPALL
POPALL
; RETI
RETI
; #pragma endasm
;
; }
; SOURCE LINE # 181
RET
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