
		      ⫠稪  BDS C
		       

      ਫ  ᭮ 㬥樥    ⫠-
筮  CDB. ।⠢ ଠ    -
筮, ⮡  ᬮ , 㦭   ⠢  
CDB.  

		    ᭥ ⮢
		   
 
     CDB -  ࠪ⨢ ᨬ᪨ ⫠稪    ண-
ࠬ, ᠭ   BDS C. 
     CDB  짮⥫  窨 ⠭   ண-
ࠬ, ஢ 室 믮 ணࠬ, 뢮   -
   ६, 㪠뢠  .	  ࠧ,
ࠧࠡ稪 ᯥ稢  ।⢮,	஥  (  
) 㤥   ࠧࠡ⪨  ஢ ணࠬ. 
      ⫠ ⮨   믮塞	䠩.  
(l2.com)  騪   䠩 	ଠ
"crl"    ⠭⭮ ணࠬ	clink,	⠢-
塞  BDS C. L2  襬 ⫠筮  -   ᫥  -
୨஢  । 裡 clink,   
 clink  ।⢠ ⫠  樨 訡.  L2
⠢ 㧪  믮 "com"-䠩    ࠢ-
 㣨 ⥩  ⫠, a ⠪ ⮢ ⠡ ᨬ-
  ᯮ짮 ⮬. 
     ன   - cdb.com -	ᯮ  ࠧࠡ-
稪 ணࠬ (   㬥  뢠  "-
⥫"), ⮡ ⨢஢ ⫠稪. CDB  
㬥  ப,  	짮⥫,	⮢
ࠧ ⠡  ⨢  cdb2.ovl,  ᫥	
. Cdb2 ࠧ頥    BDOS, 㦠  ணࠬ-
,  㦭 ⫠ ("楫 ணࠬ")  砫 TPA 
 100h.
     Cdb2 ⠥ १   	  ⫠
ணࠬ  祭 ᥣ ᥠ ⫠. ᫥ ⮣,  cdb2
㧨 ணࠬ,  । ࠢ ⫠ ண-
ࠬ,  稭 믮.   ⫠  ண-
ࠬ:	

     1) 믮 맮 㭪樨
     2) 頥 ࠢ  㭪樨
     3) 砥 砫   -
	 , ࠢ ।  cdb2,
	  頥 ࠢ ⭮,
	 ⠭ 믮   
	짮⥫  ⫠稪.  

     ਬ砭: ।饥 ⢥ত      -
쭮,   㯫    ᫥	ᮡ⨩
뢠 ⨢ cdb2.  ᭥      
⥬ ⥪  樨 -s  -ns ணࠬ l2.)
      ⮬ 㬥  ᪮ "[]" ᯮ, -
  易⥫ , ..  ,	
  饭.  

		ன  ᡮઠ ⫠稪
	         

     - 讣 ⢠ ࠧ ,  -
室 ᤥ   ᪮쪨 ⮢ a稪, 
⠢  室 .     㬥⮢  뢠
蠣,  室 ᤥ, ⮡ ࠭ନ஢ 室-
    䠩 l2.com, cdb.com  cdb2.ovl.  

		    㤠  cdb2
		     

      ஥ cdb.com  cdb2.ovl ० ᥣ 室
,  cdb2.ovl 㤥 ࠧ  . cdb2  ࠧ-
   ᮢ   楫 ணࠬ   -
,   BDOS CP/M  ᮡ⢥ ⥪ cdb2. ,	
⠢ cdb2 -     , 祬 0x4600  -
⮢ (.. 18 ). 譨    0x0480  -
⮢.  ,  ⮣ 筮,  ..    -
 筮 ᫮ ࠦ,      ᨭ-
⠪᪨ ࠧ࠭ (४ᨢ), ⮡ ஢  ᮤ-
 ६,   ᥡ ,  ⪮
-  襥 ⢮. 
     뢠  稭,  稬  ⮣  0x5400  ⮢
 , 譨   ⥪  cdb2; ⠪ ࠧ,  cdb2
 ᯮ  0x5400 ⮢   砫  BDOS.  ..
BDOS  稭   0xe406,   cdb2  稭
 祩 0x9000 (  ᯮ  祭  ਬ -
). ᫨     襣 BDOS, ᠬ ⮩  ᯮᮡ
᭨  - ᯮ짮 ddt, ⮡ ᬮ ᭮ -
  室  祩 0005. ⮡    ᤥ,  ०
ᥣ  "ddt". ᫥ 뢮 ᪠ ddt,   "l5".
 BDOS ᯮ  , 稭  ,  ⮨
 ࢮ ப ⢥ ddt. 
     ਡ⨢  ᮤন   cdb.com    cdb2.ovl,
⠭  ⥬  BDOS,  ࠧ頥	    d300.
  ⥬  ram  60  ᯮ짮   -
,  . ,     ⠢  ⮫쪮  31  
⫠ ணࠬ  ᨬ ⠡; ᫨  	⥬
 BDOS  砫  祬 d300,    ,  ⮡
⫠稪      ⫠  ணࠬ;  ,
᫨  ⥬  BDOS  0xd300,   易  ८-
 CDB   ࠡ騩 ⫠稪. 
     ᫨  㦥 訫,   cdb2,    ।-
஢ CDB   #define  cdb2addr      祭,
  㦥 ।.   	ᯮ  "cdb2addr",
⮡ ᫠   祭. ।  cdb.h,    
 #define  cdb2-drive;  ᯥ  ᪮,  
ண cdb.ovl 㤥 㦥, ᫨ 짮⥫    ⢥-
 㬮砭, ᯮ  "-d"   ப CDB. 
 ᯥ஢  祭 ᪠  (  ),
ਬ, "A",  㪢 ᪠  䨪ᮬ   짮-
, ਬ, "0/".  ਡ⨢  ਠ  ।
 㬮砭 ⢨ 祭 ᪠,    砥  -
㧪 cdb2   ⥪饣  ॣ஢  ᪠  	
짮⥫.  

			 ஥ CDB
			  

     ᫥  cdb2addr  cdb.h   ⮢  ஢
 室 䠩  CDB: 
     cc cdb.c -c 3200 cc build.c -c 3200 l2 CDB build 
      submit-䠩 - cdb.sub 	믮    ।-
⠢ ᫥⥫쭮 .  

			 ஥ cdb2
			  

     ⮡ ࠭᫨஢ 室 䠩  	cdb2,    -
室   譨  cdb2. ..	譨  
 ࠧ ᫥  cdb2,    ਡ塞  0x4600
(ࠧ ,    ࠧ )  cbd2addr.   
砥 १⮬ 㤥 0xd600; ⠪ ࠧ, ⮡  -
஢	cdb2      ⥬    ᯥ  
"-ed600". 
     Cdb2 ⮨  ᥬ 室 䠩; ⮡  ஢
,   : 

	   cc cdb2.c - exxxx
	   cc atbreak.c - exxxx
	   cc break.c - exxxx
	   cc command.c - exxxx
	   cc print.c - exxxx
	   cc parse.c - exxxx
	   cc util.c - exxxx, 

      xxxx-   ᮬ 譨  (-
ਬ, 0xd600)	  ᯮ짮  submit-䠩	cdb.sub.  ⮡
ᯮ짮 cdb2.sub,  :	

     submit cdb2 xxxx, 

      xxxx  ⮬ ࠧ饭  譨  .  
: 

     submit cdb2 xxxx d:, 

      d  祭 ᪮, 	஬  ᬥ-
 室 䠩, ᫨    ᪮  㬮砭. 
      ⮫쪮 䠩 ⪮஢,	  室  ᥬ-
஢  室 䠩 dasm.csm, (.  ਫ,  -
饥 casm).  

     casm dasm
     asm dasm
     ddt dasm.hex
     g0
     save 3 dasm.crl 

     ⮡ ᯠ   ⮣ 㤮⢠, ᮡ, ᫨  
 㪮  ஢ ᨨ casm, ਡ⨢  
ᮤন ।⥫쭮  ᥬ஢  dasm.crl.  ᫥
䠩,  㦭 ᮧ -  ⮩ 䠩, 뢠  nul-
l.sym,  l2 㤥  ᯮ짮    ।
ᮢ  㭪権, ᯮ㥬  ୥ ᥣ,  -
ண cdb2.ovl 㤥 ૥ ᥣ⮬.     ⠪
୥ ᥣ,  ⠪ 㭪権;  l2 ॡ    -
 ᥣ ,᫨ ᯮ  -ovl, ⮬   ᮧ-
 ⮩ 䠩, ⮡ 㣮 騪, 뤠:	

     save 0 null.sym  

     ,   crl-䠩 ⮢,   ⪮
. ࠢ쭠 	

     l2 cdb2 dasm atbreak command break print parse util -ovl
     null yyyy -wa,  

      yyyy     	祭,  ⠭
 cdb2addr    ⭠筮  .    submit-䠩
lcdb2.sub  	믮    㪠  楤.  
⫠稪 ⮢  ᯮ짮.  

		    
		   

      ⠢塞 ਠ  ⫠稪 ᯮ 
rst 6, ⮡ ஢ 窨  ⠭.  直  ࠧ,  
砥   rst  6,  ࠢ  ।    祩
0x0030.   ⥬  祩 	(  ᠬ  -
 rst 6)   ।a祭  ᯮ짮   -
 楫. ᫨  ⠪,    室    -
- 㣮    㭪樨 窨 ⠭.  
   1  7 (⥫쭮)   ᯮ짮;
 ࠧ襭  0. ⮡    ,	-
  ᬥ  l2.c, cdb.h  dasm.csh. 
       l2.c   cdb.h #define  rstnum   
  ,  짮⥫ ।a稫  ⫠-
稪.  dasm.csm "equ"  rstnum      
ᠬ 祭.  ,  祭     ᯥ-
஢,  ᫮  1  7. 
      祭, ⨬ ,  楫  ணࠬ  㤥
஢ ( 樥 "-"), 室 ᯥ஢ -
  ,  筮 "-"  "-",   -
 .  

	        ⨢஢ ⫠稪
	        

     ⮡ ᯮ짮 ⫠稪,  짮⥫    ०
ᥣ ஢    楫  ணࠬ    ⥬
⨢஢ ᠬ ⫠稪.      뢠  
.  襣  ⥩ 3  4 ⮣ 㬥,  
 6 ਢ ਬ ᥠ ⫠.

     :  "-k"

      㪠  㪮⢥ 짮⥫ BDS C,    "-"
ᯮ, ⮡ ⠢  ஢  ᨬ-
 ⠡  ७ ".cdb"   ஢    -
  ஢ . 짮⥫   "cc",
  筮 樨,    "-".  ਬ:

     cc target.c -k 

     : 樨 l2 -d, -s, -ns. 

     ⮡    ⫠  ணࠬ,  짮⥫
 ᯮ짮 騪 l2  clink.  ᠭ  
㬥樨, l2  ⫨   clink  ᨭ⠪  
ப; ஬ ⮣, ⫠筠  l2    ᫥騥  -
⥫ 樨:
     -d ᮧ 室 ,  ᮢ⨬   CDB.  
 ⠢ l2      砫  -
設⢠ 㭪権. ᫨    -s  -ns,   -
 頥  砫  㭪樨,    ᪫祭  
㭪権  deff*.crl,     㭪権,	
ᠬ 室  deff*.crl.
     -s: crl-䠩 ᫥ -s  ᬠਢ   "⥬-
"  䠩. 㭪  ⥬ 筮  䠩-
,  ன   ⮫쪮  㭪樨   ⥬
筮 䠩,  㤥   砫 ᥡ   -
,  l2,  ⫠稪  㤥  ஢  맮
⠪ 㭪樨.  -d  -s  -ns  "-s  deff  deff2
deff3". "-ns" ᯥ,         -
⥬	  䠩;      ᯮ,  ⮡
⢥࣭ 㬮砭e, ᮣ᭮ ஬ 䠩  deff*.crl  -
 ⥬묨 ⥪. 
     ਬ: 

     l2 target -d
   
		       ⨢ CDB
		        

     ⮡ ⨢஢ ⫠稪, 짮⥫  
CDB.  ப  ᫥騩 : 

  CDB < 楫 ணࠬ> [-l[local-cdbs]]

  [-g[globalcdbs]]
  [-d [user/]drive] [%[࠭ 楫 ணࠬ]] <> 

	    -l	  -g    짮⥫	ᯥ஢
".cdb"-䠩,   CDB 㤥  ⠡ ᨬ, -
ঠ騥 ଠ  ६, ᯮ㥬	  ⫠
ணࠬ. ᯮ 䠩 "-楫-ணࠬ".cdb,  ᫨
l  g  ᯥ஢;    㬮砭  筮  ୮,
, ᫨ 室  ᮤন  , 祬   䠩,
짮⥫  ᯥ  CDB-䠩, 祭  
 室 䠩, ᫨        ᨬ-
, ।   䠩.  	    
।  筮 䠩 ( ७  .h),	
祭   室 䠩;  ⠪  砥    室-
 ᯮ짮  -g, ⮫쪮 -l.   ⨬ ﬨ,
᫨ 짮⥫ 뢮 㫨   䠩, CDB  㤥
㦠 ᨬ 䠩   ⨯  ᨬ  (
 ); ᫨ 짮⥫       
㬥   権, CDB  짮⥫  -
 䠩,    ப.  ப 蠥 .
     ࠭ "%"  짮⥫  ᯥ஢  -
, ।  ⫠ ணࠬ. ᫨  "%"  ᫥-
 ࠭,  ⥫ ࠭  । אַ
 ⫠ ணࠬ; ᫨ 祣  ᫥  "%",  㤥
 ᪠    ப.
     ਬ砭  ⥫  : CDB    -
 㬥,  ᫥  "%",  १	।  CDB
"ArgV"; ⨢, CDB  㬥,     
  0x0080   楫 ணࠬ १ c.ccc  -
஢   .
      -d ᯥ ᪮ ( 易⥫ ஢
䨪ᮬ 짮⥫),  ண cdb2.ovl  㤥  㦥;
 㬮砭 - ⥪騩 ᪮,  짮⥫    ⢥-
 㬮砭. ⠭ 맮: 

     A>cdb cdbtarget 

			    
			    

     ⠭⭠ 楤  ⫠ ணࠬ   tar-
get.c 룫廊 ᫥騬 ࠧ:  

     cc target.c -k
     l2 target -d
     cdb target  

       ᫮  ਬ  ਬ,  	foo.c  ᮤন
室 ⥪ 㭪樨 "Main"  㣨 㭪権,    bar.c  
lib.c ᮤঠ 室 ⥪  㣨 室  㭪権,
 ஬ ⮣,  ᠭ   譨  ६  (
室 䠩 ᮤঠ #include "globails.h"),   ६, 
lib.c ᮤeন  㭪樨  짮⥫,    
   騬 ६. , ⨬,    -
⥫ 	।   (㦥   ⫠)   㭪樨   
stdlib.crl. ⮡ ஢  ᬥ, 짮⥫ :

     cc f.c -k
     cc bar.c -k
     cc lib.c -k  

     ⮡ ᪮    祭 f.com, -
⥫ :
      
     l2 f bar -l lib -s stdlib  

     ࠭ -s ।뢠 l2    ஢  ᫥
饭  ணࠬ, 祭  f.com,  뫨 -
 ⮫쪮  ணࠬ    stdlib.crl.  ⮡  ⨢஢
⫠稪, 짮⥫ :	

     cdb f -l bar lib  

     ࠭ -l  CDB,  䠩 bar.cdb	  lib.cdb  -
ঠ ⠡ ᨬ, 뤠 cc   ଠ   
 ᨬ   䠩    㦥.  -
㦠 ଠ    ,  ⠪    
ᨬ  foo.cdb.  

		       ⫠
		      

      ⮩  㬥樨	㦤  ࠧ	
CDB, 㯨஢  㭪. 
      ⨢ ⫠稪,  뢮  ᯫ 
砫 cdb2 (t.e.cdb2addr),   ࠭⢠,  ⮣  -
묨  騬 ⠡栬 ᨬ  設 ⥪  ⫠-
 ணࠬ (.. ᠬ 訩 ,   cdb2    
⠡栬). ⫠稪  ⥬  ।  ࠢ  ⫠
ணࠬ,  ᫥ 믮 樠樨 c.ccc,  -
 㭪 "Main" 楫 ணࠬ. .. 窠  ⠭
⠭  室  "Main", ࠢ ⥬  ।
⭮ 짮⥫, ஬ 뤠    .

		      窨 ⠭
		       

     CDB 筮 ࠧ蠥 ⫠ ணࠬ 믮 
  㣨  뢠.  짮⥫   ᯮ-
ᮡ,      ਮ⠭ 믮: -
  ⠭  ࢠ 믮  .  -
 窨 ⠭, 짮⥫ ⠢ CDB ⠭  -
  襭 ⥪饣 -.  ⮡  -
 뢠, 짮⥫    ᨬ; 
CDB  ਭ    ᨬ,    ⠭  믮
( ᫥ , , ᫨ ⫠ ணࠬ 
 ᨬ 짮⥫,  㤥  ।   	맮
뢠). ⮡ ⠭  ⠭,짮⥫  -
   "break":  b[reak]	[-㭪樨]  [-
[count]] ᨬ, 祭  ᪮,   饭; -
 ࠧ,  "break"     "b",  "br",
"bre"  ..  㭪樨       饭.
᫨  㭪樨 饭, 窠 ⠭ ⠭  -
  ⥪饩 㭪樨, .. 㭪樨,   ᥩ
⫠.  ⮩ 㭪樨 뤠 db  ࠭,  -
 ⫠ ணࠬ ⠭      -
⠭  "list".    㪠뢠,  
ᯥ஢ 㭪樨 㦭   ⠭.  -
 㬥  ப, ࢠ ப 㭪樨  
1. ᫨ ᪮쪮 ஢ 室  	ப,  -
:  

     A=5; PutChar("x"); while (*s) s++;  

     ᯮ "஡" ; ࢮ ⢥ত  -
 n 㬥 "n.0", ᫥饥 "n.1"   ..	(⠪    襬
ਬ, ਭ   窠  5-  窮  
㭪樨, "a=5;"   5.0; "putchar(x);" -  5,1;  "whi-
le(*s)"-5.2  "s++"-5.3.      ᫠,  -
 ".0".  ࠧ       -
 :  

     sn:= < ப> [.   ப]  

       ᫮ 砥 cc ८࣠  室    
 ᢮ ᮡ⢥ .   砥, 
짮⥫ 㤭   ⠭    -
. 묨 묨 ﬨ,    cc	  
"⠭  "  :    横᪮  樨
("while","for","do"),      ⢫
  横   砫;    "for"  cc  ६頥
"६ " (..᫥      -
஢, 祭   "for")     横;  ⠪
ࠧ,    ⠥   ⪮ 
"for",  ᫥  ᫥ ப 横. 
      襯᫥,    ᯥ樠  
  -  0  -1. 0 -   室    㭪    窠
⠭ ᯮ ।  믮塞	㭪樨.  -1  -
   㭪樨; 窠 ⠭ ᯮ ᫥  -
  (, ⠪ ࠧ, 饭 㭪樥 -
祭  뢥 	ᯫ).  窨  ⠭    
⠭  "" 0  -1 ⠪ ,     㣨
.    ᮢᥬ  㯮 ࠭ count.  -
祭 窨 ⠭  "break" ⠢ CDB  -
 믮 楫 ணࠬ   ,    窠
ࠧ뢠   ஢ count ࠧ.  㬮砭 - 1. -
६   祭  40 祪 ⠭.  "re-
set" ᯮ  ⮣, ⮡  	⠭.  -
⠪  ᫥騩: r[eset]  [-㭪樨]  [  ]
祭  㬮砭  ,     "break".  -
,  訡  ⪥ 㤠   祭  
⠭.  "clear"  ᯮ짮,  ⮡	㤠
 窨 ⠭. ⠪:	clear  	"clear"  
  .     "list   breakpoints"   
ᯮ짮, ⮡ 뤠 ⨭  祭   -
饥 ६ 祪 ⠭.  
  "list   breakpoints"   
