*.asm程序：        
         .title "ex9"
         .global  _c_int00
         .mmregs
SM_ADDR  .set 1003h
SM_DATA  .set 60h
         .sect ".vectors"
reset    B  _c_int00
         NOP
         NOP
         .space  31*4*16
         .text
_c_int00: LD #0h,DP;
          STM #2000h,SP;
          RSBX INTM;
          STM #07FFFh,SWWSR;
          SSBX   XF
          ST #1007,CLKMD;
          RPT #0FFh
          NOP
          STM #0FFFFh,IFR
          ORM  #000h,IRM
          RSBX SXM
aaa       nop
          CALL   LED07;
          CALL   LED8F;
          b  aaa
LED8F     ST #8000h,SM_DATA
          ST #07H,AR3
WRDENG:  PORTW SM_DATA<SM_ADDR;8-f
         RPT #10000
         NOP
         ST  #FFFh,AR6
         call delay
         ADDM #1100H,SM_DATA
         BANZ WRDENG,*AR3-
         RET
LED07    NOP
         ST #07H,AR3
         STM #0H,SM_DATA
WRDENG1 NOP;0-7
        PORTW  SM_DATA,SM_ADDR
        ST #02fffH,AR6
        call delay
        ADDM #1100H,SM_DATA
        BANZ WRDENG1,*AR3-
        RET
delay   STM #0F0h,AR7;
        BANZ ＄，*AR7-
        BANZ delay,*AR6-
        RET

*.cmd程序：
MEMORY
{
 PAGE 0: VECS:origin=0xff80,length=0x80
         PROG:orgin=0x1000,length=0x1000
 PAGE 1DATA:orgin=0x2500,length=0xc000
 STACK:orgin=0x2000,length=0x100
}
SECTIONS
{
 .VECTORS: {}>PAGE 0
 .text   : {}>PROG PAGE0
 .data   : {}>DATA PAGE 1
 .stack  : {}>STACK PAGE 1
}   
请问下程序是什么意思啊 ？还有origin=0xff80，这个0xff80改成多少，程序的运行结果不会改变啊！
怎么样改成输出是  0
                  01
                  012
                  0123
                  ...
                  01234567   
？