A51 MACRO ASSEMBLER  CLRSCR                                                               04/03/2009 01:00:38 PAGE     1


MACRO ASSEMBLER A51 V8.01
OBJECT MODULE PLACED IN Clrscr.obj
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE src\Clrscr.src SET(SMALL) DEBUG PRINT(.\Clrscr.lst) XREF OBJECT(Clrscr.obj
                      ) EP

LOC  OBJ            LINE     SOURCE

                       1     ; CLRSCR.SRC generated from: CLRSCR.C
                       2     
                       3     $nomod51 
                       4     
                       5     NAME    CLRSCR
                       6     
                       7     ;DPP     DATA    084H
  0090                 8     P1      DATA    090H
  0082                 9     DPL     DATA    082H
  0083                10     DPH     DATA    083H
  00F0                11     B       DATA    0F0H
                      12     ?PR?clrlcdram?CLRSCR SEGMENT CODE
                      13     ?DT?clrlcdram?CLRSCR SEGMENT DATA
                      14     EXTRN   IDATA (a_bcolor)
                      15     PUBLIC  Clrlcdram
                      16     
----                  17             RSEG  ?DT?clrlcdram?CLRSCR
0000                  18     ?clrlcdram?BYTE:
0000                  19     p?02:                   DS  2
                      20     
----                  21             RSEG  ?PR?clrlcdram?CLRSCR
                      22             USING   0
0000                  23     Clrlcdram:
0000                  24     clrscr:
0000 C006             25             push   6
0002 C007             26             push   7
0004 C082             27             push   dpl
0006 C083             28             push   dph
0008 C000             29             push   0
000A 7ED7             30             mov    r6,  #215
000C 7FA3             31             mov    r7,  #163
                      32             
                      33             ;mov    dpp, #0f7h
000E D290             34                     SETB   P1.0
0010 C294             35                     CLR    P1.4
                      36                     
0012 900FFF           37             mov    dptr,#0fffh
0015 7800     F       38             mov    r0,#a_bcolor
0017 E6               39             mov    a,@r0
0018 F5F0             40             mov    b,a
001A C4               41             swap   a
001B 45F0             42             orl    a,b
001D                  43     clrloop:
001D F0               44                     movx   @dptr,a
001E 0583             45             inc    dph
0020 DEFB             46             djnz   r6,clrloop
0022 75830F           47             mov    dph,#0fh
0025 0582             48             inc    dpl
0027 7ED7             49             mov    r6,#215
0029 DFF2             50             djnz   r7, clrloop
                      51     
                      52     ;       mov    dpp,#0efh
                      53                     
002B D294             54                     SETB   P1.4
002D C290             55             CLR    P1.0
                      56                     
002F D000             57             pop    0
A51 MACRO ASSEMBLER  CLRSCR                                                               04/03/2009 01:00:38 PAGE     2

0031 D083             58             pop    dph
0033 D082             59             pop    dpl
0035 D007             60             pop    7
0037 D006             61             pop    6
0039 22               62             RET
                      63     
                      64             END
A51 MACRO ASSEMBLER  CLRSCR                                                               04/03/2009 01:00:38 PAGE     3

XREF SYMBOL TABLE LISTING
---- ------ ----- -------


N A M E               T Y P E  V A L U E   ATTRIBUTES / REFERENCES

?CLRLCDRAM?BYTE. . .  D ADDR   0000H   R   SEG=?DT?CLRLCDRAM?CLRSCR   18#
?DT?CLRLCDRAM?CLRSCR  D SEG    0002H       REL=UNIT   13# 17
?PR?CLRLCDRAM?CLRSCR  C SEG    003AH       REL=UNIT   12# 21
A_BCOLOR . . . . . .  I ADDR   -----       EXT   14# 38
B. . . . . . . . . .  D ADDR   00F0H   A      11# 40 42
CLRLCDRAM. . . . . .  C ADDR   0000H   R   SEG=?PR?CLRLCDRAM?CLRSCR   15 23#
CLRLOOP. . . . . . .  C ADDR   001DH   R   SEG=?PR?CLRLCDRAM?CLRSCR   43# 46 50
CLRSCR . . . . . . .  C ADDR   0000H   R   SEG=?PR?CLRLCDRAM?CLRSCR   5 24#
DPH. . . . . . . . .  D ADDR   0083H   A      10# 28 45 47 58
DPL. . . . . . . . .  D ADDR   0082H   A      9# 27 48 59
P1 . . . . . . . . .  D ADDR   0090H   A      8# 34 35 54 55
P?02 . . . . . . . .  D ADDR   0000H   R   SEG=?DT?CLRLCDRAM?CLRSCR   19#


REGISTER BANK(S) USED: 0 

ASSEMBLY COMPLETE.  0 WARNING(S), 0 ERROR(S)