( A )=0A7H,(R5)=68H, Cy =1，执行指令 SUBB A ,R5后 ( A )=［填空1] Cy =［填空2] Ac =［填空3] OV =［填空4] P =［填空5]

( A )=9FH Cy =0 Ac =0 OV =0 P =0

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