3.txt

编译原理语义分析代码

        IN   
        STI   0
        LOAD 0
        OUT
        LOAD 0
        LOADI 10
        EQ
        BRF LABEL0
        LOADI 1
        STO 1
        BR LABEL1
LABEL0:
        LOADI 2
        STO 1
LABEL1:
LABEL2:
        LOAD 0
        LOADI 0
        GT
        BRF LABEL3
        LOAD 0
        LOADI 1
        SUB
        STO 0
        LOAD 1
        LOADI 1
        ADD
        STO 1
        BR LABEL2
LABEL3:
        LOAD 1
        OUT
LABEL4:
        LOAD 1
        LOADI 1
        ADD
        STO 1
        LOAD 1
        LOADI 10
        LES
        BRF LABEL5
        BR LABEL4
LABEL5:
        LOADI 0
        STO 1
        LOADI 0
        STO 0
LABEL6:
        LOAD 0
        LOADI 5
        LES
        BRF LABEL7
        BR LABEL8
LABEL9:
        LOAD 0
        LOADI 1
        ADD
        STO 0
        BR LABEL6
LABEL8:
        LOADI 4
        STO 1
        BR LABEL9
LABEL7:
        LOAD 1
        OUT
        STOP