如何在pep8程序集中正确打印字符串输出？

Question

我刚刚编写了将整数分十进制为oct或hex或bin整数的程序。

    BR  MAIN
J: .BLOCK  2
H: .BLOCK  2 
X: .WORD 0
Y: .WORD 0
msg1:   .ascii  "Enter a decimal number to be converted\x00"
msg2:   .ascii  "Enter a new base\x00"
msg3:   .ascii  "The answer is\x00"

MAIN:   STRO    msg1,d
    CHARO   '\n',i
    DECI    J,d
    STRO    msg2,d
    CHARO   '\n',i
    DECI    H,d
    STRO    msg3,d
    CHARO   '\n',i

LOOP:    LDA     J,d
         SUBA    H,d
         STA     J,d
         LDA     J,d
         BRLT    finish2
         LDA     X,d
         ADDA    1,i
         STA     X,d
         LDA     J,d
         CPA     H,d
         BRLT    finish1
         BR      LOOP

finish1: LDA     J,d
         CPA     10,i
         BREQ    A
         CPA     11,i
         BREQ    B
         CPA     12,i
         BREQ    C
         CPA     13,i
         BREQ    D
         CPA     14,i
         BREQ    E
         CPA     15,i
         BREQ    F
         DECO    J,d
         LDA     X,d
         STA     J,d
         LDA     X,d
         BREQ    final
         LDA     0,i
         STA     X,d
         BR      LOOP

finish2: LDA     J,d
         ADDA    H,d
         STA     J,d
         BR      finish1
         BR      LOOP

A:       CHARO   "A",i
Z:       LDA     X,d
         STA     J,d
         LDA     X,d
         BREQ    final
         LDA     0,i
         STA     X,d
         BR      LOOP

B:       CHARO   "B",i
         BR      Z

C:       CHARO   "C",i
         BR      Z

D:       CHARO   "D",i
         BR      Z

E:       CHARO   "E",i
         BR      Z

F:       CHARO   "F",i
         BR      Z

final:   STOP
.END

我希望1234的输出为4D2，但实际输出为2D4。

如何在pep8程序集中正确打印字符串输出？