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kernel/linux-imx6_3.14.28/arch/arm/lib/bswapsdi2.S 591 Bytes
6b13f685e   김민수   BSP 최초 추가
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  #include <linux/linkage.h>
  
  #if __LINUX_ARM_ARCH__ >= 6
  ENTRY(__bswapsi2)
  	rev r0, r0
  	bx lr
  ENDPROC(__bswapsi2)
  
  ENTRY(__bswapdi2)
  	rev r3, r0
  	rev r0, r1
  	mov r1, r3
  	bx lr
  ENDPROC(__bswapdi2)
  #else
  ENTRY(__bswapsi2)
  	eor r3, r0, r0, ror #16
  	mov r3, r3, lsr #8
  	bic r3, r3, #0xff00
  	eor r0, r3, r0, ror #8
  	mov pc, lr
  ENDPROC(__bswapsi2)
  
  ENTRY(__bswapdi2)
  	mov ip, r1
  	eor r3, ip, ip, ror #16
  	eor r1, r0, r0, ror #16
  	mov r1, r1, lsr #8
  	mov r3, r3, lsr #8
  	bic r3, r3, #0xff00
  	bic r1, r1, #0xff00
  	eor r1, r1, r0, ror #8
  	eor r0, r3, ip, ror #8
  	mov pc, lr
  ENDPROC(__bswapdi2)
  #endif