38 строки
610 B
ArmAsm
38 строки
610 B
ArmAsm
#include <linux/linkage.h>
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#include <asm/assembler.h>
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#if __LINUX_ARM_ARCH__ >= 6
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ENTRY(__bswapsi2)
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rev r0, r0
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bx lr
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ENDPROC(__bswapsi2)
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ENTRY(__bswapdi2)
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rev r3, r0
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rev r0, r1
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mov r1, r3
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bx lr
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ENDPROC(__bswapdi2)
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#else
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ENTRY(__bswapsi2)
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eor r3, r0, r0, ror #16
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mov r3, r3, lsr #8
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bic r3, r3, #0xff00
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eor r0, r3, r0, ror #8
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ret lr
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ENDPROC(__bswapsi2)
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ENTRY(__bswapdi2)
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mov ip, r1
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eor r3, ip, ip, ror #16
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eor r1, r0, r0, ror #16
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mov r1, r1, lsr #8
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mov r3, r3, lsr #8
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bic r3, r3, #0xff00
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bic r1, r1, #0xff00
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eor r1, r1, r0, ror #8
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eor r0, r3, ip, ror #8
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ret lr
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ENDPROC(__bswapdi2)
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#endif
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