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Include/psp/coldfire_inline.h
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    00001 /*
    00002  *
    00003  * Copyright (c) 2012, Freescale Semiconductor, Inc.
    00004  *
    00005 */
    00006
    00007 /*!
    00008  * @file coldfire_inline.h
    00009  * @brief Coldfire specific instruction header file.
    00010  *
    00011  */
    00012
    00013 #ifndef COLDFIRE_INLINE_H_
    00014 #define COLDFIRE_INLINE_H_
    00015
    00016
    00017 #include "psp_cpudef.h"
    00018
    00019
    00020 #if PSP_MQX_CPU_IS_COLDFIRE
    00021
    00022 // Find the first bit that is set in a 32 bit register
    00023 __declspec(register_abi) inline asm uint_32 ff1(uint_32 bits) {
    00024     ff1.l d0
    00025 }
    00026 // Find the first bit that is set in a 32 bit register
    00027 __declspec(register_abi) inline asm uint_32 bitrev(uint_32 bits) {
    00028     bitrev.l d0
    00029 }
    00030
    00031 #define ENABLE_INTERRUPTS asm { move.w SR,D0; andi.l #0xF8FF,D0; move.w D0,SR;  }
    00032   /*!< Macro to enable all interrupts. */
    00033
    00034 #define DISABLE_INTERRUPTS asm { move.w SR,D0; ori.l #0x0700,D0; move.w D0,SR;  }
    00035   /*!< Macro to disable all interrupts. */
    00036
    00037 #endif
    00038
    00039
    00040
    00041 #endif /* COLDFIRE_INLINE_H_ */