“POP A” is a valid 8051 instruction. (
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举一反三
- Instruction<br/>“PUSH B” is a valid 8051 instruction. (<br/>)
- Instruction<br/>“MOV C, 30H” is a valid 8051 instruction. ( )
- 8051<br/>does not provide the instruction for subtraction without borrow. (<br/>)
- ____: An instruction sequence in programmed instruction.
- There is a subi instruction in MIPS instruction set.
内容
- 0
When an instruction is executed the address of the next instruction is put into the PC. （ ）
- 1
()=F0H,<br/>(R0)=30H, and (30H)=AAH. After execution of an instruction XCH A,<br/>@R0, accumulator will be,( ) A: AAH B: F0H C: 30H D: 78H
- 2
()=F0H,<br/>(R0)=30H, and (30H)=AAH. After execution of an instruction “XCH<br/>A, @R0”, the contents of A will be( ) A: AAH B: F0H C: 30H D: 78H
- 3
Within<br/>the understanding of the constructivist approach to learning, the<br/>learner’s ideas and conceptions _____ instruction are seen as<br/>important factors in the learning process.() A: close<br/>to B: away<br/>from C: based<br/>on D: prior<br/>to
- 4
对于典型的MIPS五级流水线处理器（不前递），下面这段代码中，哪条指令会遇到数据冒险？instruction 1: add $1, $2, $3instruction 2: sw $2, 0($1)instruction 3: lw $1, 4($2)instruction 4: add $2, $2, $1 A: instruction 2 B: instruction 4 C: instruction 1 D: instruction 3