Turbo Assembler	 Version 4.1	    05/16/96 16:56:10	    Page 1
kbfunc.asm



      1					 ideal
      2					 p386
      3	00000000			 model flat,c
      4
      5					 extrn	 scode:byte
      6
      7					 global	kisr:near
      8
      9
     10	00000000			 SEGMENT kbdriver USE32
     11
     12
     13
     14	00000000			 proc kisr near
     15	00000000  60			  pushad
     16	00000001  06			  push es
     17
     18	00000002  66| B8 0000s		  mov	  ax, DGROUP
     19	00000006  8E C0			  mov	  es, ax
     20	00000008  BB 00000000e		  mov	  ebx, offset scode
     21
     22	0000000D  E4 60			  in	  al,60h
     23	0000000F  3C 7F			  cmp	  al,7fh
     24	00000011  77 05			  ja	  kb_release
     25	00000013  26: 88 03		  mov	  [es:ebx], al
     26	00000016  EB 04			  jmp	  xit_kisr
     27	00000018			 kb_release:
     28	00000018  26: C6 03 00		  mov	  [byte	es:ebx], 0
     29
     30	0000001C			 xit_kisr:
     31	0000001C  E4 61			  in	  al, 61h	      ;read in 8255 port PB
     32	0000001E  0C 80			  or	  al, 80h	      ;set keybrd acknowledge
     33	00000020  E6 61			  out	  61h, al	      ;send it
     34	00000022  24 7F			  and	  al, 7fh	      ;reset it
     35	00000024  E6 61			  out	  61h, al	      ;restore original	condition
     36
     37	00000026  66| BA 0020		  mov	  dx, 20h
     38	0000002A  8A C2			  mov	  al, dl	      ;end the interrput
     39	0000002C  EE			  out	  dx, al
     40
     41	0000002D  07			  pop es
     42	0000002E  61			  popad
     43	0000002F  CF			  iretd
     44	00000030			 endp
     45
     46	00000030			 ends kbdriver
     47					 end
Turbo Assembler	 Version 4.1	    05/16/96 16:56:10	    Page 2
Symbol Table




Symbol Name			  Type	 Value

??date				  Text	 "05/16/96"
??filename			  Text	 "kbfunc  "
??time				  Text	 "16:56:10"
??version			  Number 040A
@32Bit				  Text	 1
@CodeSize			  Text	 0
@Cpu				  Text	 0F8FH
@DataSize			  Text	 0
@FileName			  Text	 kbfunc
@Interface			  Text	 01h
@Model				  Text	 1
@WordSize			  Text	 4
@code				  Text	 FLAT
@curseg				  Text	 kbdriver
@data				  Text	 FLAT
@stack				  Text	 FLAT
kb_release			  Near	 FLAT:0018
kisr (_kisr)			  Near	 FLAT:0000
scode (_scode)			  Byte	 ----:---- Extern
xit_kisr			  Near	 FLAT:001C

Groups & Segments		  Bit Size Align  Combine Class

DGROUP				  Group
  _DATA				  32  0000 Dword  Public  DATA
FLAT				  Group
_TEXT				  32  0000 Dword  Public  CODE
kbdriver			  32  0030 Para	  none