小问题一直解决不了

[cjwin83]

Microsoft (R) Macro Assembler Version 6.14.8444 01/08/06 00:14:58
First move and add operations Page 1 - 1


page 60,133
TITLE First move and add operations

;-----------------------------------------------------
0000 STACK1 SEGMENT PARA STACK 'Stack'
0000 0020 [ DW 32 DUP(0)
0000
]
0040 STACK1 ENDS
;-----------------------------------------------------
0000 DATASEG SEGMENT PARA 'Data'
0000 00D7 FLDD DW 215
0002 007D FLDE DW 125
0004 0000 FLDF DW ?
0006 DATASEG ENDS
;-----------------------------------------------------
0000 CODESEG SEGMENT PARA 'Code'
0000 MAIN PROC FAR
ASSUME SS:STACK1,DS:DATASEG,CS:CODESEG
0000 B8 ---- R MOV AX,DATASEG
1.asm(18) : error A2004: symbol type conflict
0003 8E D8 MOV DS,AX
0005 A1 0000 R MOV AX,FLDD
0008 03 06 0002 R ADD AX,FLDE
000C A3 0004 R MOV FLDF,AX
000F B8 4C00 MOV AX,4C00H
0012 CD 21 INT 21H
0014 MAIN ENDP
0014 CODESEG ENDS
END

[cjwin83]

我用的是masm32 8.0
命令是
ml /c /coff