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Workaround for strexh/strexb same register error: http://lists.gnu.org/archive/html/bug-binutils/2011-12/msg00112.html
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James Snyder
parent
a77fc80604
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879642e1e1
@ -7,9 +7,9 @@
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*
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* Copyright (C) 2009 ARM Limited. All rights reserved.
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*
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* ARM Limited (ARM) is supplying this software for use with Cortex-Mx
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* processor based microcontrollers. This file can be freely distributed
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* within development tools that are supporting such ARM based processors.
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* ARM Limited (ARM) is supplying this software for use with Cortex-Mx
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* processor based microcontrollers. This file can be freely distributed
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* within development tools that are supporting such ARM based processors.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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@ -67,7 +67,7 @@ __ASM uint32_t __get_PSP(void)
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* @param uint32_t Process Stack Pointer
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* @return none
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*
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* Assign the value ProcessStackPointer to the MSP
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* Assign the value ProcessStackPointer to the MSP
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* (process stack pointer) Cortex processor register
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*/
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__ASM void __set_PSP(uint32_t topOfProcStack)
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@ -97,7 +97,7 @@ __ASM uint32_t __get_MSP(void)
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* @param uint32_t Main Stack Pointer
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* @return none
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*
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* Assign the value mainStackPointer to the MSP
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* Assign the value mainStackPointer to the MSP
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* (main stack pointer) Cortex processor register
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*/
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__ASM void __set_MSP(uint32_t mainStackPointer)
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@ -237,7 +237,7 @@ __ASM void __set_FAULTMASK(uint32_t faultMask)
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/**
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* @brief Return the Control Register value
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*
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*
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* @param none
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* @return uint32_t Control value
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*
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@ -263,7 +263,7 @@ __ASM void __set_CONTROL(uint32_t control)
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bx lr
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}
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#endif /* __ARMCC_VERSION */
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#endif /* __ARMCC_VERSION */
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#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/
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@ -289,7 +289,7 @@ uint32_t __get_PSP(void)
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* @param uint32_t Process Stack Pointer
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* @return none
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*
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* Assign the value ProcessStackPointer to the MSP
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* Assign the value ProcessStackPointer to the MSP
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* (process stack pointer) Cortex processor register
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*/
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void __set_PSP(uint32_t topOfProcStack)
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@ -319,7 +319,7 @@ uint32_t __get_MSP(void)
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* @param uint32_t Main Stack Pointer
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* @return none
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*
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* Assign the value mainStackPointer to the MSP
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* Assign the value mainStackPointer to the MSP
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* (main stack pointer) Cortex processor register
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*/
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void __set_MSP(uint32_t topOfMainStack)
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@ -367,7 +367,7 @@ uint32_t __RBIT(uint32_t value)
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uint8_t __LDREXB(uint8_t *addr)
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{
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__ASM("ldrexb r0, [r0]");
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__ASM("bx lr");
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__ASM("bx lr");
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}
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/**
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@ -461,7 +461,7 @@ uint32_t __get_PSP(void)
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{
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uint32_t result=0;
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__ASM volatile ("MRS %0, psp\n\t"
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__ASM volatile ("MRS %0, psp\n\t"
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"MOV r0, %0 \n\t"
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"BX lr \n\t" : "=r" (result) );
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return(result);
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@ -474,7 +474,7 @@ uint32_t __get_PSP(void)
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* @param uint32_t Process Stack Pointer
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* @return none
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*
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* Assign the value ProcessStackPointer to the MSP
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* Assign the value ProcessStackPointer to the MSP
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* (process stack pointer) Cortex processor register
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*/
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void __set_PSP(uint32_t topOfProcStack) __attribute__( ( naked ) );
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@ -498,7 +498,7 @@ uint32_t __get_MSP(void)
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{
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uint32_t result=0;
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__ASM volatile ("MRS %0, msp\n\t"
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__ASM volatile ("MRS %0, msp\n\t"
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"MOV r0, %0 \n\t"
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"BX lr \n\t" : "=r" (result) );
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return(result);
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@ -510,7 +510,7 @@ uint32_t __get_MSP(void)
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* @param uint32_t Main Stack Pointer
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* @return none
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*
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* Assign the value mainStackPointer to the MSP
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* Assign the value mainStackPointer to the MSP
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* (main stack pointer) Cortex processor register
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*/
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void __set_MSP(uint32_t topOfMainStack) __attribute__( ( naked ) );
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@ -531,7 +531,7 @@ void __set_MSP(uint32_t topOfMainStack)
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uint32_t __get_BASEPRI(void)
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{
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uint32_t result=0;
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__ASM volatile ("MRS %0, basepri_max" : "=r" (result) );
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return(result);
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}
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@ -590,7 +590,7 @@ void __set_PRIMASK(uint32_t priMask)
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uint32_t __get_FAULTMASK(void)
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{
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uint32_t result=0;
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__ASM volatile ("MRS %0, faultmask" : "=r" (result) );
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return(result);
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}
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@ -619,7 +619,7 @@ void __set_FAULTMASK(uint32_t faultMask)
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uint32_t __REV(uint32_t value)
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{
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uint32_t result=0;
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__ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) );
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return(result);
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}
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@ -635,7 +635,7 @@ uint32_t __REV(uint32_t value)
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uint32_t __REV16(uint16_t value)
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{
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uint32_t result=0;
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__ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) );
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return(result);
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}
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@ -651,7 +651,7 @@ uint32_t __REV16(uint16_t value)
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int32_t __REVSH(int16_t value)
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{
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uint32_t result=0;
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__ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) );
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return(result);
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}
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@ -667,7 +667,7 @@ int32_t __REVSH(int16_t value)
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uint32_t __RBIT(uint32_t value)
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{
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uint32_t result=0;
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__ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
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return(result);
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}
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@ -683,7 +683,7 @@ uint32_t __RBIT(uint32_t value)
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uint8_t __LDREXB(uint8_t *addr)
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{
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uint8_t result=0;
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__ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) );
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return(result);
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}
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@ -699,7 +699,7 @@ uint8_t __LDREXB(uint8_t *addr)
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uint16_t __LDREXH(uint16_t *addr)
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{
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uint16_t result=0;
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__ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) );
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return(result);
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}
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@ -715,7 +715,7 @@ uint16_t __LDREXH(uint16_t *addr)
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uint32_t __LDREXW(uint32_t *addr)
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{
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uint32_t result=0;
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__ASM volatile ("ldrex %0, [%1]" : "=r" (result) : "r" (addr) );
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return(result);
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}
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@ -731,25 +731,25 @@ uint32_t __LDREXW(uint32_t *addr)
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*/
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uint32_t __STREXB(uint8_t value, uint8_t *addr)
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{
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uint32_t result=0;
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//uint32_t result=0;
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register uint32_t result asm ("r2");
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__ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
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return(result);
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}
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}
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/**
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* @brief STR Exclusive
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* @brief STR Exclusive (16 bit)
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*
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* @param uint16_t *address
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* @param uint16_t value to store
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* @return uint32_t successful / failed
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* @param value value to store
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* @param *addr address pointer
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* @return successful / failed
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*
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* Exclusive STR command
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* Exclusive STR command for 16 bit values
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*/
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uint32_t __STREXH(uint16_t value, uint16_t *addr)
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{
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uint32_t result=0;
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//uint32_t result=0;
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register uint32_t result asm ("r2");
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__ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
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return(result);
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}
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@ -766,14 +766,14 @@ uint32_t __STREXH(uint16_t value, uint16_t *addr)
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uint32_t __STREXW(uint32_t value, uint32_t *addr)
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{
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uint32_t result=0;
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__ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
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return(result);
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}
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/**
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* @brief Return the Control Register value
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*
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*
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* @param none
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* @return uint32_t Control value
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*
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