📄 os_sem.s79
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//////////////////////////////////////////////////////////////////////////////
// /
// IAR ARM ANSI C/C++ Compiler V4.40A/W32 EVALUATION 21/Jul/2006 16:27:53 /
// Copyright 1999-2005 IAR Systems. All rights reserved. /
// Time limited license: 22 days left /
// /
// Cpu mode = interwork /
// Endian = little /
// Stack alignment = 4 /
// Source file = E:\Project\ucos-ii\spi\uCOS-II\os_sem.c /
// Command line = E:\Project\ucos-ii\spi\uCOS-II\os_sem.c -lCN /
// E:\Project\ucos-ii\spi\Debug\List\ -lA /
// E:\Project\ucos-ii\spi\Debug\List\ -o /
// E:\Project\ucos-ii\spi\Debug\Obj\ -s9 --no_cse /
// --no_unroll --no_inline --no_code_motion --no_tbaa /
// --no_clustering --no_scheduling --debug --cpu_mode /
// thumb --endian little --cpu ARM7TDMI-S /
// --stack_align 4 --interwork -e --fpu None /
// --dlib_config "e:\Program Files\IAR /
// Systems\Embedded Workbench 4.0 /
// Evaluation\ARM\LIB\dl4tptinl8n.h" -I /
// E:\Project\ucos-ii\spi\ -I /
// E:\Project\ucos-ii\spi\App\ -I /
// E:\Project\ucos-ii\spi\ARM\ -I /
// E:\Project\ucos-ii\spi\BSP\ -I /
// E:\Project\ucos-ii\spi\uCOS-II\ -I "e:\Program /
// Files\IAR Systems\Embedded Workbench 4.0 /
// Evaluation\ARM\INC\" /
// List file = E:\Project\ucos-ii\spi\Debug\List\os_sem.s79 /
// /
// /
//////////////////////////////////////////////////////////////////////////////
NAME os_sem
RTMODEL "StackAlign4", "USED"
RTMODEL "__cpu_mode", "__pcs__interwork"
RTMODEL "__data_model", "absolute"
RTMODEL "__endian", "little"
RTMODEL "__rt_version", "6"
RSEG CSTACK:DATA:NOROOT(2)
??DataTable0 EQU 0
??DataTable1 EQU 0
??DataTable2 EQU 0
??DataTable3 EQU 0
??DataTable4 EQU 0
??DataTable5 EQU 0
MULTWEAK ??OSSemAccept??rA
MULTWEAK ??OSSemCreate??rA
MULTWEAK ??OSSemDel??rA
MULTWEAK ??OSSemPend??rA
MULTWEAK ??OSSemPost??rA
MULTWEAK ??OSSemQuery??rA
MULTWEAK ??OS_CPU_SR_Restore??rT
MULTWEAK ??OS_CPU_SR_Save??rT
MULTWEAK ??OS_EventTO??rT
MULTWEAK ??OS_EventTaskRdy??rT
MULTWEAK ??OS_EventTaskWait??rT
MULTWEAK ??OS_EventWaitListInit??rT
MULTWEAK ??OS_Sched??rT
PUBLIC OSSemAccept
FUNCTION OSSemAccept,0203H
LOCFRAME CSTACK, 12, STACK
PUBLIC OSSemCreate
FUNCTION OSSemCreate,0203H
LOCFRAME CSTACK, 12, STACK
PUBLIC OSSemDel
FUNCTION OSSemDel,0203H
LOCFRAME CSTACK, 24, STACK
PUBLIC OSSemPend
FUNCTION OSSemPend,0203H
LOCFRAME CSTACK, 20, STACK
PUBLIC OSSemPost
FUNCTION OSSemPost,0203H
LOCFRAME CSTACK, 12, STACK
PUBLIC OSSemQuery
FUNCTION OSSemQuery,0203H
LOCFRAME CSTACK, 12, STACK
CFI Names cfiNames0
CFI StackFrame CFA R13 HUGEDATA
CFI Resource R0:32, R1:32, R2:32, R3:32, R4:32, R5:32, R6:32, R7:32
CFI Resource R8:32, R9:32, R10:32, R11:32, R12:32, CPSR:32, R13:32
CFI Resource R14:32, SPSR:32
CFI VirtualResource ?RET:32
CFI EndNames cfiNames0
CFI Common cfiCommon0 Using cfiNames0
CFI CodeAlign 4
CFI DataAlign 4
CFI ReturnAddress ?RET CODE
CFI CFA R13+0
CFI R0 Undefined
CFI R1 Undefined
CFI R2 Undefined
CFI R3 Undefined
CFI R4 SameValue
CFI R5 SameValue
CFI R6 SameValue
CFI R7 SameValue
CFI R8 SameValue
CFI R9 SameValue
CFI R10 SameValue
CFI R11 SameValue
CFI R12 Undefined
CFI CPSR SameValue
CFI R14 Undefined
CFI SPSR SameValue
CFI ?RET R14
CFI EndCommon cfiCommon0
CFI Common cfiCommon1 Using cfiNames0
CFI CodeAlign 2
CFI DataAlign 4
CFI ReturnAddress ?RET CODE
CFI CFA R13+0
CFI R0 Undefined
CFI R1 Undefined
CFI R2 Undefined
CFI R3 Undefined
CFI R4 SameValue
CFI R5 SameValue
CFI R6 SameValue
CFI R7 SameValue
CFI R8 SameValue
CFI R9 SameValue
CFI R10 SameValue
CFI R11 SameValue
CFI R12 Undefined
CFI CPSR SameValue
CFI R14 Undefined
CFI SPSR SameValue
CFI ?RET R14
CFI EndCommon cfiCommon1
OS_CPU_SR_Restore SYMBOL "OS_CPU_SR_Restore"
OS_CPU_SR_Save SYMBOL "OS_CPU_SR_Save"
OS_EventTO SYMBOL "OS_EventTO"
OS_EventTaskRdy SYMBOL "OS_EventTaskRdy"
OS_EventTaskWait SYMBOL "OS_EventTaskWait"
OS_EventWaitListInit SYMBOL "OS_EventWaitListInit"
OS_Sched SYMBOL "OS_Sched"
OSSemAccept SYMBOL "OSSemAccept"
??OSSemAccept??rA SYMBOL "??rA", OSSemAccept
OSSemCreate SYMBOL "OSSemCreate"
??OSSemCreate??rA SYMBOL "??rA", OSSemCreate
OSSemDel SYMBOL "OSSemDel"
??OSSemDel??rA SYMBOL "??rA", OSSemDel
OSSemPend SYMBOL "OSSemPend"
??OSSemPend??rA SYMBOL "??rA", OSSemPend
OSSemPost SYMBOL "OSSemPost"
??OSSemPost??rA SYMBOL "??rA", OSSemPost
OSSemQuery SYMBOL "OSSemQuery"
??OSSemQuery??rA SYMBOL "??rA", OSSemQuery
??OS_CPU_SR_Restore??rT SYMBOL "??rT", OS_CPU_SR_Restore
??OS_CPU_SR_Save??rT SYMBOL "??rT", OS_CPU_SR_Save
??OS_EventTO??rT SYMBOL "??rT", OS_EventTO
??OS_EventTaskRdy??rT SYMBOL "??rT", OS_EventTaskRdy
??OS_EventTaskWait??rT SYMBOL "??rT", OS_EventTaskWait
??OS_EventWaitListInit??rT SYMBOL "??rT", OS_EventWaitListInit
??OS_Sched??rT SYMBOL "??rT", OS_Sched
EXTERN OSEventFreeList
EXTERN OSIntNesting
EXTERN OSTCBCur
EXTERN OS_CPU_SR_Restore
FUNCTION OS_CPU_SR_Restore,0202H
EXTERN OS_CPU_SR_Save
FUNCTION OS_CPU_SR_Save,0202H
EXTERN OS_EventTO
FUNCTION OS_EventTO,0202H
EXTERN OS_EventTaskRdy
FUNCTION OS_EventTaskRdy,0202H
EXTERN OS_EventTaskWait
FUNCTION OS_EventTaskWait,0202H
EXTERN OS_EventWaitListInit
FUNCTION OS_EventWaitListInit,0202H
EXTERN OS_Sched
FUNCTION OS_Sched,0202H
RSEG CODE:CODE:NOROOT(2)
CFI Block cfiBlock0 Using cfiCommon0
CFI NoFunction
ARM
??OSSemAccept??rA:
ADD R12,PC,#+1
BX R12
CFI EndBlock cfiBlock0
REQUIRE OSSemAccept
// E:\Project\ucos-ii\spi\uCOS-II\os_sem.c
// 1 /*
// 2 *********************************************************************************************************
// 3 * uC/OS-II
// 4 * The Real-Time Kernel
// 5 * SEMAPHORE MANAGEMENT
// 6 *
// 7 * (c) Copyright 1992-2003, Jean J. Labrosse, Weston, FL
// 8 * All Rights Reserved
// 9 *
// 10 * File : OS_SEM.C
// 11 * By : Jean J. Labrosse
// 12 *********************************************************************************************************
// 13 */
// 14
// 15 #ifndef OS_MASTER_FILE
// 16 #include <ucos_ii.h>
// 17 #endif
// 18
// 19 #if OS_SEM_EN > 0
// 20 /*
// 21 *********************************************************************************************************
// 22 * ACCEPT SEMAPHORE
// 23 *
// 24 * Description: This function checks the semaphore to see if a resource is available or, if an event
// 25 * occurred. Unlike OSSemPend(), OSSemAccept() does not suspend the calling task if the
// 26 * resource is not available or the event did not occur.
// 27 *
// 28 * Arguments : pevent is a pointer to the event control block
// 29 *
// 30 * Returns : > 0 if the resource is available or the event did not occur the semaphore is
// 31 * decremented to obtain the resource.
// 32 * == 0 if the resource is not available or the event did not occur or,
// 33 * if 'pevent' is a NULL pointer or,
// 34 * if you didn't pass a pointer to a semaphore
// 35 *********************************************************************************************************
// 36 */
// 37
// 38 #if OS_SEM_ACCEPT_EN > 0
RSEG CODE:CODE:NOROOT(2)
CFI Block cfiBlock1 Using cfiCommon1
CFI Function OSSemAccept
THUMB
// 39 INT16U OSSemAccept (OS_EVENT *pevent)
// 40 {
OSSemAccept:
PUSH {R4,R5,LR}
CFI ?RET Frame(CFA, -4)
CFI R5 Frame(CFA, -8)
CFI R4 Frame(CFA, -12)
CFI CFA R13+12
MOVS R4,R0
// 41 #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
// 42 OS_CPU_SR cpu_sr;
// 43 #endif
// 44 INT16U cnt;
// 45
// 46
// 47 #if OS_ARG_CHK_EN > 0
// 48 if (pevent == (OS_EVENT *)0) { /* Validate 'pevent' */
BNE ??OSSemAccept_0
// 49 return (0);
??OSSemAccept_1:
MOVS R0,#+0
B ??OSSemAccept_2
// 50 }
// 51 #endif
// 52 if (pevent->OSEventType != OS_EVENT_TYPE_SEM) { /* Validate event block type */
??OSSemAccept_0:
LDRB R0,[R4, #+0]
CMP R0,#+3
BNE ??OSSemAccept_1
// 53 return (0);
// 54 }
// 55 OS_ENTER_CRITICAL();
_BLF OS_CPU_SR_Save,??OS_CPU_SR_Save??rT
// 56 cnt = pevent->OSEventCnt;
LDRH R5,[R4, #+2]
// 57 if (cnt > 0) { /* See if resource is available */
MOVS R1,R5
BEQ ??OSSemAccept_3
// 58 pevent->OSEventCnt--; /* Yes, decrement semaphore and notify caller */
SUBS R1,R5,#+1
STRH R1,[R4, #+2]
// 59 }
// 60 OS_EXIT_CRITICAL();
??OSSemAccept_3:
_BLF OS_CPU_SR_Restore,??OS_CPU_SR_Restore??rT
// 61 return (cnt); /* Return semaphore count */
MOVS R0,R5
??OSSemAccept_2:
POP {R4,R5}
POP {R1}
BX R1 ;; return
CFI EndBlock cfiBlock1
// 62 }
RSEG CODE:CODE:NOROOT(2)
CFI Block cfiBlock2 Using cfiCommon0
CFI NoFunction
ARM
??OSSemCreate??rA:
ADD R12,PC,#+1
BX R12
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