os_flag.txt
来自「针对STM32F103的UCOS移植」· 文本 代码 · 共 1,214 行 · 第 1/5 页
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1,214 行
; generated by ARM/Thumb C/C++ Compiler with , RVCT3.1 [Build 942] for uVision
; commandline ArmCC [--debug -c --asm --interleave -o.\rvmdk\os_flag.o --depend=.\rvmdk\os_flag.d --device=DARMSTM --apcs=interwork -O1 -Otime -I. -I..\BSP -I..\..\..\..\..\uCOS-II\Ports\arm-cortex-m3\Generic\RealView -I..\..\..\..\..\uCOS-II\Source -I..\..\..\..\..\CPU\ST\STM32\inc -I..\..\..\..\..\uC-CPU -I..\..\..\..\..\uC-CPU\Arm-Cortex-M3\RealView -I..\..\..\..\..\uC-LIB -I..\..\..\..\..\uC-Probe\Target\Plugins\uCOS-II -I..\..\..\..\..\uC-Probe\Target\Communication\Generic\Source -I..\..\..\..\..\uC-Probe\Target\Communication\Generic\RS-232\Ports\ST\STM32 -I..\..\..\..\..\uC-Probe\Target\Communication\Generic\RS-232\Source -IC:\Keil\ARM\INC\ST\STM32F10x ..\..\..\..\..\uCOS-II\Source\os_flag.c]
THUMB
AREA ||.text||, CODE, READONLY, ALIGN=2
OSFlagAccept PROC
;;;92 OS_FLAGS OSFlagAccept (OS_FLAG_GRP *pgrp, OS_FLAGS flags, INT8U wait_type, INT8U *perr)
;;;93 {
000000 e92d41f0 PUSH {r4-r8,lr}
000004 4605 MOV r5,r0
000006 460f MOV r7,r1
000008 4614 MOV r4,r2
00000a 461e MOV r6,r3
;;;94 OS_FLAGS flags_rdy;
;;;95 INT8U result;
;;;96 BOOLEAN consume;
;;;97 #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
;;;98 OS_CPU_SR cpu_sr = 0;
;;;99 #endif
;;;100
;;;101
;;;102
;;;103 #if OS_ARG_CHK_EN > 0
;;;104 if (perr == (INT8U *)0) { /* Validate 'perr' */
00000c b916 CBNZ r6,|L1.20|
;;;105 return ((OS_FLAGS)0);
00000e 2000 MOVS r0,#0
;;;106 }
;;;107 if (pgrp == (OS_FLAG_GRP *)0) { /* Validate 'pgrp' */
;;;108 *perr = OS_ERR_FLAG_INVALID_PGRP;
;;;109 return ((OS_FLAGS)0);
;;;110 }
;;;111 #endif
;;;112 if (pgrp->OSFlagType != OS_EVENT_TYPE_FLAG) { /* Validate event block type */
;;;113 *perr = OS_ERR_EVENT_TYPE;
;;;114 return ((OS_FLAGS)0);
;;;115 }
;;;116 result = (INT8U)(wait_type & OS_FLAG_CONSUME);
;;;117 if (result != (INT8U)0) { /* See if we need to consume the flags */
;;;118 wait_type &= ~OS_FLAG_CONSUME;
;;;119 consume = OS_TRUE;
;;;120 } else {
;;;121 consume = OS_FALSE;
;;;122 }
;;;123 /*$PAGE*/
;;;124 *perr = OS_ERR_NONE; /* Assume NO error until proven otherwise. */
;;;125 OS_ENTER_CRITICAL();
;;;126 switch (wait_type) {
;;;127 case OS_FLAG_WAIT_SET_ALL: /* See if all required flags are set */
;;;128 flags_rdy = (OS_FLAGS)(pgrp->OSFlagFlags & flags); /* Extract only the bits we want */
;;;129 if (flags_rdy == flags) { /* Must match ALL the bits that we want */
;;;130 if (consume == OS_TRUE) { /* See if we need to consume the flags */
;;;131 pgrp->OSFlagFlags &= ~flags_rdy; /* Clear ONLY the flags that we wanted */
;;;132 }
;;;133 } else {
;;;134 *perr = OS_ERR_FLAG_NOT_RDY;
;;;135 }
;;;136 OS_EXIT_CRITICAL();
;;;137 break;
;;;138
;;;139 case OS_FLAG_WAIT_SET_ANY:
;;;140 flags_rdy = (OS_FLAGS)(pgrp->OSFlagFlags & flags); /* Extract only the bits we want */
;;;141 if (flags_rdy != (OS_FLAGS)0) { /* See if any flag set */
;;;142 if (consume == OS_TRUE) { /* See if we need to consume the flags */
;;;143 pgrp->OSFlagFlags &= ~flags_rdy; /* Clear ONLY the flags that we got */
;;;144 }
;;;145 } else {
;;;146 *perr = OS_ERR_FLAG_NOT_RDY;
;;;147 }
;;;148 OS_EXIT_CRITICAL();
;;;149 break;
;;;150
;;;151 #if OS_FLAG_WAIT_CLR_EN > 0
;;;152 case OS_FLAG_WAIT_CLR_ALL: /* See if all required flags are cleared */
;;;153 flags_rdy = (OS_FLAGS)(~pgrp->OSFlagFlags & flags); /* Extract only the bits we want */
;;;154 if (flags_rdy == flags) { /* Must match ALL the bits that we want */
;;;155 if (consume == OS_TRUE) { /* See if we need to consume the flags */
;;;156 pgrp->OSFlagFlags |= flags_rdy; /* Set ONLY the flags that we wanted */
;;;157 }
;;;158 } else {
;;;159 *perr = OS_ERR_FLAG_NOT_RDY;
;;;160 }
;;;161 OS_EXIT_CRITICAL();
;;;162 break;
;;;163
;;;164 case OS_FLAG_WAIT_CLR_ANY:
;;;165 flags_rdy = (OS_FLAGS)(~pgrp->OSFlagFlags & flags); /* Extract only the bits we want */
;;;166 if (flags_rdy != (OS_FLAGS)0) { /* See if any flag cleared */
;;;167 if (consume == OS_TRUE) { /* See if we need to consume the flags */
;;;168 pgrp->OSFlagFlags |= flags_rdy; /* Set ONLY the flags that we got */
;;;169 }
;;;170 } else {
;;;171 *perr = OS_ERR_FLAG_NOT_RDY;
;;;172 }
;;;173 OS_EXIT_CRITICAL();
;;;174 break;
;;;175 #endif
;;;176
;;;177 default:
;;;178 OS_EXIT_CRITICAL();
;;;179 flags_rdy = (OS_FLAGS)0;
;;;180 *perr = OS_ERR_FLAG_WAIT_TYPE;
;;;181 break;
;;;182 }
;;;183 return (flags_rdy);
;;;184 }
000010 e8bd81f0 POP {r4-r8,pc}
|L1.20|
000014 b925 CBNZ r5,|L1.32|
000016 206e MOVS r0,#0x6e ;108
000018 7030 STRB r0,[r6,#0] ;108
00001a 2000 MOVS r0,#0 ;109
00001c e8bd81f0 POP {r4-r8,pc}
|L1.32|
000020 7828 LDRB r0,[r5,#0] ;112
000022 2805 CMP r0,#5 ;112
000024 d004 BEQ |L1.48|
000026 2001 MOVS r0,#1 ;113
000028 7030 STRB r0,[r6,#0] ;113
00002a 2000 MOVS r0,#0 ;114
00002c e8bd81f0 POP {r4-r8,pc}
|L1.48|
000030 f0040080 AND r0,r4,#0x80 ;116
000034 b120 CBZ r0,|L1.64|
000036 f0240480 BIC r4,r4,#0x80 ;118
00003a f04f0801 MOV r8,#1 ;119
00003e e001 B |L1.68|
|L1.64|
000040 f04f0800 MOV r8,#0 ;121
|L1.68|
000044 2000 MOVS r0,#0 ;124
000046 7030 STRB r0,[r6,#0] ;124
000048 f7fffffe BL OS_CPU_SR_Save
00004c 2270 MOVS r2,#0x70 ;126
00004e b314 CBZ r4,|L1.150|
000050 2c01 CMP r4,#1 ;126
000052 d02f BEQ |L1.180|
000054 2c02 CMP r4,#2 ;126
000056 d00b BEQ |L1.112|
000058 2c03 CMP r4,#3 ;126
00005a d139 BNE |L1.208|
00005c 8929 LDRH r1,[r5,#8] ;140
00005e ea010407 AND r4,r1,r7 ;140
000062 b1a4 CBZ r4,|L1.142|
000064 f1b80f01 CMP r8,#1 ;142
000068 d112 BNE |L1.144|
00006a 43a1 BICS r1,r1,r4 ;143
00006c 8129 STRH r1,[r5,#8] ;143
00006e e00f B |L1.144|
|L1.112|
000070 8929 LDRH r1,[r5,#8] ;128
000072 ea010407 AND r4,r1,r7 ;128
000076 42bc CMP r4,r7 ;129
000078 d105 BNE |L1.134|
00007a f1b80f01 CMP r8,#1 ;130
00007e d103 BNE |L1.136|
000080 43a1 BICS r1,r1,r4 ;131
000082 8129 STRH r1,[r5,#8] ;131
000084 e000 B |L1.136|
|L1.134|
000086 7032 STRB r2,[r6,#0] ;134
|L1.136|
000088 f7fffffe BL OS_CPU_SR_Restore
00008c e025 B |L1.218|
|L1.142|
00008e 7032 STRB r2,[r6,#0] ;146
|L1.144|
000090 f7fffffe BL OS_CPU_SR_Restore
000094 e021 B |L1.218|
|L1.150|
000096 8929 LDRH r1,[r5,#8] ;153
000098 ea270401 BIC r4,r7,r1 ;153
00009c 42bc CMP r4,r7 ;154
00009e d105 BNE |L1.172|
0000a0 f1b80f01 CMP r8,#1 ;155
0000a4 d103 BNE |L1.174|
0000a6 4321 ORRS r1,r1,r4 ;156
0000a8 8129 STRH r1,[r5,#8] ;156
0000aa e000 B |L1.174|
|L1.172|
0000ac 7032 STRB r2,[r6,#0] ;159
|L1.174|
0000ae f7fffffe BL OS_CPU_SR_Restore
0000b2 e012 B |L1.218|
|L1.180|
0000b4 8929 LDRH r1,[r5,#8] ;165
0000b6 ea270401 BIC r4,r7,r1 ;165
0000ba b12c CBZ r4,|L1.200|
0000bc f1b80f01 CMP r8,#1 ;167
0000c0 d103 BNE |L1.202|
0000c2 4321 ORRS r1,r1,r4 ;168
0000c4 8129 STRH r1,[r5,#8] ;168
0000c6 e000 B |L1.202|
|L1.200|
0000c8 7032 STRB r2,[r6,#0] ;171
|L1.202|
0000ca f7fffffe BL OS_CPU_SR_Restore
0000ce e004 B |L1.218|
|L1.208|
0000d0 f7fffffe BL OS_CPU_SR_Restore
0000d4 2400 MOVS r4,#0 ;179
0000d6 206f MOVS r0,#0x6f ;180
0000d8 7030 STRB r0,[r6,#0] ;180
|L1.218|
0000da 4620 MOV r0,r4 ;183
0000dc e8bd81f0 POP {r4-r8,pc}
;;;185 #endif
ENDP
OSFlagCreate PROC
;;;208 OS_FLAG_GRP *OSFlagCreate (OS_FLAGS flags, INT8U *perr)
;;;209 {
0000e0 b570 PUSH {r4-r6,lr}
0000e2 4606 MOV r6,r0
0000e4 460d MOV r5,r1
;;;210 OS_FLAG_GRP *pgrp;
;;;211 #if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
;;;212 OS_CPU_SR cpu_sr = 0;
;;;213 #endif
;;;214
;;;215
;;;216
;;;217 #if OS_ARG_CHK_EN > 0
;;;218 if (perr == (INT8U *)0) { /* Validate 'perr' */
0000e6 b90d CBNZ r5,|L1.236|
;;;219 return ((OS_FLAG_GRP *)0);
0000e8 2000 MOVS r0,#0
;;;220 }
;;;221 #endif
;;;222 if (OSIntNesting > 0) { /* See if called from ISR ... */
;;;223 *perr = OS_ERR_CREATE_ISR; /* ... can't CREATE from an ISR */
;;;224 return ((OS_FLAG_GRP *)0);
;;;225 }
;;;226 OS_ENTER_CRITICAL();
;;;227 pgrp = OSFlagFreeList; /* Get next free event flag */
;;;228 if (pgrp != (OS_FLAG_GRP *)0) { /* See if we have event flag groups available */
;;;229 /* Adjust free list */
;;;230 OSFlagFreeList = (OS_FLAG_GRP *)OSFlagFreeList->OSFlagWaitList;
;;;231 pgrp->OSFlagType = OS_EVENT_TYPE_FLAG; /* Set to event flag group type */
;;;232 pgrp->OSFlagFlags = flags; /* Set to desired initial value */
;;;233 pgrp->OSFlagWaitList = (void *)0; /* Clear list of tasks waiting on flags */
;;;234 #if OS_FLAG_NAME_SIZE > 1
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