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简答题

设SP=2000H,AX=3000H,BX=5000H,执行下列片段程序后,问SP=?AX=?BX=?
PUSH  AX    ;SP ← SP - 2 = 1FFEH,AX=3000H 
PUSH  BX    ;SP ← SP - 2 = 1FFCH,BX=5000H 
POP   AX ;SP ← SP + 2 = 1FFEH,AX=5000H

【参考答案】

SP = 1FFEH,AX = 5000H,BX = 5000H。
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