30 lines
647 B
NASM
30 lines
647 B
NASM
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;//*##########################################################################
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;//
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;// \FILE F2838xD_TestAndSet.asm
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;// \project EFC_PlatformC28x
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;// \date 10 мая 2024 г.
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;// \author Titov L.A.
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;//
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;// \breif Test of make-run-read-modify-write(bit) atomic operation
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;//
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;//###########################################################################
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;D
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.text
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.global _test_and_set
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;Input: volatile uint16_t * - AR4 (on low 16 bit address space)
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;Output: uint16_t - AL (return value)
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_test_and_set:
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TSET *AR4,#0 ;Test and set specified bit, read-modify-write operation.
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MOVB AL,#0
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MOVB AL,#1,TC
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LRETR
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;//
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;// End of file.
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;//
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