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1,16c 0 TITLE 'NZCPR V 1.6 OF 08/03/82' ; ; CP/M Z80 Command Processor Replacement (CPR) Version 1.6 in ; the NZCPR line. ; ; CCPZ CREATED AND CUSTOMIZED FOR ARIES-II BY RLC . 16c 62983 ; The following individuals also provided a contribution: . 18a 39299 ; Since RLC has decided that ZCPR V1.0 is the last official version ; sanctioned by the CCPZ group, changes beyond that point are being ; called by consensus of a group of new changers "NZCPR Vx.x". The ; following individuals have put in their code or opinions: ; ; SBB - Steve Bogolub ; PST - Paul Traina ; HLB - Howard Booker ; CAF - Chuck Forsberg ; RAF - Bob Fischer ; BB - Ben Bronson ; PRG - Paul Grupp ; PJH - Paul Homchick ; HEW - Hal Walchli ; ; In an attempt to maintain a link to the past, changes between the ; current version of NZCPR are provided as both a difference file ; between NZCPR's (NZ14-16.DIF) and as a difference between the current ; version and the "official" ZCPR V1.0 (NZCPR-16.DIF). These changes ; are made and supported by individuals in contact with each other through ; the Hyde Park RCPM in Chicago. Make comments or complaints there, to ; SBB or PST or anyone else interested. ; ; The most obvious differences between NZCPR and ZCPR are the security ; features, controlled by additional conditional assembly flags. Such ; features restrict access to ZCPR intrinsic commands, add additional ; levels of .COM file searching, and prevent access to higher drives ; or user levels, with either internal or external password control of ; these features. Less obvious differences involve code optimization to ; gain space, and some minor bug fixes in the TYPE command. . 67c 8490 ; PRNNF CMDTBL . 75c 33828 ; RESETUSR GETUSR SETUSR PAGER UCASE ; NOECHO . 79c 14196 ; SETUD SETU0D REDBUF CNVBUF CMDSER . 83d 133 88c 58521 ; 5D TYPE . 96a 21695 ; 5M PASS NORM . 110a 2189 ; SECURE - TRUE to conditionally disable potentially-harmful ; commands (GO, ERA, SAVE, REN, DFU, GET, JUMP). Under ; SECURE, if WHEEL contains RESTRCT, do not accept those ; commands, and search for COM files under current user ; then user "DEFUSR" only. If WHEEL does not contain ; RESTRCT (presumably from passworded change), allow ; all commands, and search current user, then last user ; set by DFU (originally "RESUSR"), then user "DEFUSR" ; for COM files, giving access with password to an ; additional level of COM files. ; ; (Note: WHEEL must point to a safe place in memory that ; won't be overlayed) ; ; If you have chosen a SECURE system, all resident commands may be ; activated by entering: PASS <password> <cr> Where <password> is a sequence ; of characters placed at PASSID (if INPASS is true, otherwise, see ; documentation in PST's PASS.ASM). If the password is incorrect. the system ; will come back with PASS? as if it was looking for a COM file. ; NORM is the reverse of PASS, it will disable the WHEEL mode. ; ; INPASS - If in the SECURE mode, you wish to use a program similar ; to PST's PASS.ASM, set this false, otherwise, ZCPR will ; handle the PASSword coding with a built in command. ; ; DRUSER - Set this EQU false if you wish to disable RAF's neat hack ; that allows you the type B: 7 to move to drive B: user area ; seven. This also removes the USER command. Basically, set ; this equate false if you want to use USERPW or some other pgm. ; ; RAS - Remote-Access System; setting this equate to TRUE disables ; certain CPR commands that are considered harmful in a Remote- ; Access environment; use under Remote-Access Systems (RBBS) for ; security purposes. Note: SECURE is the direct enemy of RAS, ; DON'T define both equates or you will be VERY sorry. ; The advantage SECURE has over RAS is that by saying a magic ; word, all of the normal commands pop into existance. ; ; MAXDRIV - Maximum legal drive number stored in this location. ; (0 means only A:, etc.) 0000H disables this feature. ; The value MAXDR is stuffed into MAXDRIV at cold boot, ; and presumably will be changed later by a passworded ; program if desired. ; ; (This code is in addition to BIOS checks. It's needed here ; because X: can hang if X: is off line in some BIOS ; implementations. Personally, I think CAF and others should fix ; their BIOS instead. Mine works right...SBB). ; ; USRMAX - Maximum legal user # + 1 stored in this location. 0000H ; disables this feature, and uses the value of MAXUSR+1 instead. ; . 174,177c 45022 ; EPRMPT - Set TRUE to be prompted "OK?" after seeing what files will ; be erased. No, this is NOT for individual file prompting, ; it is just to confirm deletion of all selected files at once. ; ; Various individuals keep trying to yank out the TYPE, LIST, and DIR ; commands, either to use the space for other options or just because ; they prefer replacement COM files. To these individuals, I (SBB) say ; keep your paws off these commands. For compatibility with the stock ; CCP, intrinsic DIR and TYPE commands are required. And many users in ; MY neighborhood find it more convenient to use the intrinsic LIST ; command than to have a LIST/PRINT program on every disk. If you want ; to call a transient program by an intrinsic, then CHANGE THE INTRINSIC ; NAME IN THE TABLE. Even setting the name to blanks is fine to get ; rid of it. The point is, don't remove features others may want, just ; because you disagree, then throw it back in our laps. For those who ; simply MUST be rid of these commands, the following symbols control ; generation of the code in a CLEAN ACCEPTABLE fashion that allows ; others to have these features: ; ; CPRTYP - Set to TRUE to generate code for intrinsic TYPE command. ; ; WSTYPE - Set to TRUE to generate an extra three lines of code ; to correctly interpret the WordStar (tm) internal ; end of line hyphen for display, which is the ASCII ; NEWLINE code (1FH) and normally non-printing or ; troublemaking -- thanks to PJH for this one. CPRTYP ; must be TRUE, or this symbol will be ignored. ; ; CPRLST - Set to TRUE to generate code for intrinsic LIST command. ; Since almost all of the LIST code is common to the ; TYPE code, CPRTYP must be set TRUE as well, or this ; symbol will be ignored. ; ; CPRDIR - Set to TRUE to generate code for intrinsic DIR command. ; Note that unlike the various directory programs, a ; restricted DIR command here allows displaying the names ; of SYS file ONLY, so many RCPM operators WANT this code. ; ; Remember, you only get a total of 2048 (0800H) bytes of space for ; ALL of the generated code, or many other areas of your system ; generation will be affected. For example, to be fully SECURE, you ; would set SECURE to TRUE, and define MAXDRIV and USRMAX, and maybe ; use the internal password by setting INPASS to TRUE (external is ; MUCH recommended for easier modification). Those options absolutely ; generate too much code unless either CPRTYP or CPRDIR or both are ; set FALSE. A system with SECURE set to FALSE is right on the edge, ; and requires a give and take on options to fit, i.e. you can have ; MAXDRIV and USRMAX with DIR and TYPE if you leave out LIST and ; querying on ERASE, and so on. ; *************************************************************************** ** Be careful when playing with different combinations of these equates. ** ** You might not have enough memory to some combinations. Check this ** ** if you have problems, if they still persist, gripe to me (PST). ** *************************************************************************** . 242,244c 54642 MSIZE EQU 56 ;SIZE OF MEM IN K-BYTES BIOSEX EQU 2 ;EXTRA # K-BYTES IN BIOS CPRLOC EQU 3400H+(MSIZE-20-BIOSEX)*1024 ;CPR ORIGIN . 248,250c 5792 ; to that value as in the following line: ; ;CPRLOC EQU 0DA00H ;FILL IN WITH BDOSLOC SUPPLIED VALUE . 259,260c 25363 ; CCP in YOUR CP/M system; several systems (Morrow Designs, P&T, Heath ; Org-0 to name a few) have the CCP located at a non-standard address in . 263,264c 35576 ;CPRR EQU 0E00H-CPRLOC ;DDT LOAD OFFSET FOR APPLE SOFTCARD 56K CPRR EQU 0980H-CPRLOC ;DDT LOAD OFFSET ;CPRR EQU 1600H-CPRLOC ;DDT LOAD OFFSET FOR COMPUPRO DISK-1 ;CPRR EQU 1100H-CPRLOC ;DDT LOAD OFFSET FOR MORROW DESIGNS . 269a 21005 ;AND YOU DON'T WANT TO RUN SECURE (FOO...) ; USRMAX EQU 0000H ;LOCATION OF BYTE IN MEMORY CONTAINING ; NUMBER OF HIGHEST ALLOWABLE USER CODE + 1 ; THIS VALUE IS SET BY CPR ON COLD BOOT, ; AND PRESUMABLY CONTROLLED AFTER THAT ; BY A PASSWORD PROGRAM. IF USRMAX=0, THEN ; MAXUSR BELOW IS USED FOR CHECKING ONLY. ; 03FH IS RECOMMENDED IF USED *** MAXUSR EQU 15 ;MAX ALLOWED USER NUMBER, THIS + 1 IS STUFFED ; INTO USRMAX ON COLD BOOT, OR USED DIRECTLY ; IF USRMAX=0 ; MAXDRIV EQU 0000H ;LOCATION THAT HAS MAX LEGAL DRIVE # ;SET IT TO ZERO TO DISABLE THIS CHECK ;03DH IS RECOMMENDED IF USED *** MAXDR EQU 1 ;MAX DRIVE # TO SET INTO MAXDRIV ON COLD BOOT ; SECURE EQU FALSE ;SET TRUE FOR SECURE ENVIRONMENT... ; DEFUSR EQU 0 ;DEFAULT USER FOR UNRESTRICTED COM FILES ; IF SECURE WHEEL EQU 3EH ;SET TO "RESTRCT" FOR LIMITED ACCESS RESTRCT EQU 0 ;WHEN (WHEEL)==RESTRCT, LIMIT COMMANDS RESUSR EQU 15 ;CHECK HERE FOR RESTRICTED ACCESS COM FILES (LIKE PIP) ; UNTIL CHANGED BY DFU OR WARM BOOT ENDIF ;SECURE ; INPASS EQU FALSE ;SET TRUE IF RUNNING SECURE AND NOT PASS.COM ; DRUSER EQU TRUE ;TRUE TO ALLOW USER COMMAND AND DRIVE/USER HACK ; EPRMPT EQU FALSE ;TRUE TO PROMPT BEFORE ERASING ALL FILES ; CPRTYP EQU TRUE ;TRUE TO GENERATE TYPE CODE WSTYPE EQU TRUE ;TRUE TO GENERATE WORDSTAR HYPHEN CHECK (CPRTYP ; MUST BE TRUE TOO) CPRLST EQU TRUE ;TRUE TO GENERATE LIST CODE (CPRTYP MUST BE TRUE TOO) CPRDIR EQU TRUE ;TRUE TO GENERATE DIR CODE ; ; *** Note to Apple Softcard Users *** ; ; In their infinite (?) wisdom (???), Microsoft decided that the way to ; get a two-column directory display instead of four-column (narrow 40-col ; screen, remember) was to have their BIOS poke CCP every time it was ; loaded, if there was no terminal interface card in I/O slot 3. ; Naturally, that will turn into a random poke on any non-standard ; CCP, like this one. The best way to get this CPR up on the Apple is to ; load it into CPM56.COM, at location 0E00H in the image. The BIOS code ; that pokes the CPR can also be modified at that time. The poke is done ; by "STA 0C8B2H", found at 24FEH in the CPM56 image. To keep this ; feature, change the 0C8B2H address in that instruction by hand to ; the value generated for the symbol TWOPOK in the DIR routine. If ; you have assembled out the DIR code by setting CPRDIR to FALSE, then ; disable this feature by changing the "STA" to "LDA", i.e. set the ; contents of location 24FEH from 32H to 3AH. If you wish to force ; a two-column display in all cases, set the TWOCOL switch below to a ; value of TRUE, and disable the poke. ; TWOCOL EQU FALSE ;TRUE IF TWO COL DIR INSTEAD OF FOUR . 339a 46920 ; . 346a 11745 ; . 349a 8967 ; . 357a 36504 ; . 361a 37881 ; . 365a 39543 ; . 374c 64501 SUBA EQU TRUE ; Set to TRUE to have $$$.SUB always on A: . 378,379c 61815 ; command lines. This is for Command Level 3 of ZCPR. Under the current ; ZCPR philosophy, three command levels exist: ; . 384c 19501 ; CIBUFF and setting the character count in CBUFF ; . 394c 12753 CLEVEL3 EQU TRUE ;ENABLE COMMAND LEVEL 3 PROCESSING . 407,408d 22087 413,414d 41275 425a 559 FFEED EQU 0CH BEL EQU 07H . 529a 11442 ; . 535c 23153 ; ; NOTE: Entry into ZCPR in this way is permitted under this version, . 541,549c 60847 ; ; Some user programs (such as SYNONYM3) attempt to use the default ; command facility. Under the original CCP, it was necessary to initialize ; the pointer after the reserved space for the command buffer to point to ; the first byte of the command buffer. Under current versions, this is ; no longer the case. The CIBPTR (Command Input Buffer PoinTeR) is located ; to be compatible with such programs (provided they determine the buffer ; length from the byte at MBUFF [CPRLOC + 6]), but under ZCPR this is ; no longer necessary, since this buffer pointer is automatically ; initialized in all cases. . 553,555c 65249 JMP CPR ; Process potential default command, and set ; USRMAX to MAXUSR default JMP CPR1 ; Do NOT process potential default command ; . 560a 22919 ; . 564,569c 3849 ; ; (1) by the user entering it through the BDOS READLN function at ; the du> prompt [user input from keyboard] ; (2) by the SUBMIT File Facility placing it there from a $$$.SUB ; file ; (3) by an external program or user placing the required command ; into this buffer ; . 582c 61503 ; to have the command processed. Again, under the current ZCPR, it is not . 584a 52688 ; . 596c 21830 DB ' ' ;DEFAULT (COLD BOOT) COMMAND ; ; The copyright notice from Digital Research is genned into the ; stock CCP at this location. It should be maintained in ZCPR, ; since Digital Research grants permission for ZCPR to exist. ; DB ' COPYRIGHT (C) 1979, DIGITAL RESEARCH ' . 604a 12391 DB 'NZCPR V 1.6 of 08/03/82 ' ;ZCPR ID FOR DISK DUMP . 611c 60170 DW CIBUF ;POINTER TO CURR COMMAND FOR ; ERROR REPORTING . 645d 28747 670,705d 64726 672c 21646 ; CPR STARTING POINTS. NOTE THAT SOME CP/M IMPLEMENTATIONS ; REQUIRE THE COLD START ADDRESS TO BE IN THE STARTING PAGE ; OF THE CPR, FOR DYNAMIC CCP LOADING. CMDTBL WAS MOVED FOR ; THIS REASON. ; ; SET USRMAX AND/OR MAXDRIV TO DEFAULT VALUES ON COLD BOOT ; IF REQUIRED. NOTE THAT SOME BIOS IMPLEMENTATIONS WILL END ; UP HERE INSTEAD OF AT THE WARM BOOT, DEFEATING PASSWORDING ; OF THESE OPTIONS. RECOMMEND SUCH A BIOS BE FIXED. ; IF USRMAX OR MAXDRIV CPR: IF USRMAX MVI A,MAXUSR+1 ;SET USRMAX ON COLD BOOT STA USRMAX ENDIF ;USRMAX ; IF MAXDRIV MVI A,MAXDR ;SET MAXDRIV ON COLD BOOT STA MAXDRIV ENDIF ;MAXDRIV ; JR CPR2 ; THEN PROCEED ENDIF ;USRMAX OR MAXDRIV . 711c 52498 IF USRMAX OR MAXDRIV CPR2: ELSE CPR: ENDIF ;USRMAX OR MAXDRIV ; . 836a 62900 ; CPR BUILT-IN COMMAND TABLE ; NCHARS EQU 4 ;NUMBER OF CHARS/COMMAND ; ; CPR COMMAND NAME TABLE ; EACH TABLE ENTRY IS COMPOSED OF THE 4-BYTE COMMAND AND 2-BYTE ADDRESS ; CMDTBL: ; IF INPASS AND SECURE DB 'PASS' ;ENABLE WHEEL (SYSOP) MODE DW PASS ENDIF ;INPASS AND SECURE ; IF DRUSER DB 'USER' ;CHANGE USER AREAS DW USER ENDIF ;DRUSER ; IF CPRTYP DB 'TYPE' ;TYPE A FILE TO CON: DW TYPE ENDIF ;CPRTYP ; IF CPRDIR DB 'DIR ' ;PULL A DIRECTORY OF DISK FILES DW DIR ENDIF ;CPRDIR NRCMDS EQU ($-CMDTBL)/(NCHARS+2) ;PUT ANY COMMANDS THAT ARE OK TO ;RUN WHEN NOT UNDER WHEEL MODE ;IN FRONT OF THIS LABEL IF CPRLST AND CPRTYP DB 'LIST' ;LIST FILE TO PRINTER DW LIST ENDIF ;CPRLST AND CPRTYP ; IF INPASS AND SECURE DB 'NORM' ;DISABLE WHEEL MODE DW NORM ENDIF ;INPASS AND SECURE ; IF NOT RAS ;FOR NON-RAS DB 'GO ' ;JUMP TO 100H DW GO DB 'ERA ' ;ERASE FILE DW ERA DB 'SAVE' ;SAVE MEMORY IMAGE TO DISK DW SAVE DB 'REN ' ;RENAME FILE DW REN DB 'DFU ' ;SET DEFAULT USER DW DFU DB 'GET ' ;LOAD FILE INTO MEMORY DW GET DB 'JUMP' ;JUMP TO LOCATION IN MEMORY DW JUMP ENDIF ;RAS ; NCMNDS EQU ($-CMDTBL)/(NCHARS+2) ; . 914a 51203 ANI 7FH ;PREVENT INADVERTANT GRAPHIC OUTPUT ; TO EPSON-TYPE PRINTERS . 927,929c 34082 ; ; CONVERT CHAR IN A TO UPPER CASE ; UCASE: CPI 61H ;LOWER-CASE A RC CPI 7BH ;GREATER THAN LOWER-CASE Z? RNC ANI 5FH ;CAPITALIZE RET ; NOECHO: PUSH D ;SAVE D MVI C,6 ;DIRECT CONSOLE I/O MVI E,0FFH ;INPUT CALL BDOSB POP D ORA A ;DID WE GET A CHAR? JRZ NOECHO ;WAIT FOR IT IF NOT, IT'S EXPECTED RET ; IF CPRTYP LCOUT: ENDIF ;CPRTYP ; IF CPRTYP AND CPRLST . 967a 17482 ENDIF ;CPRTYP AND CPRLST ; IF CPRTYP . 975,976c 15925 RNZ ;DONE IF NOT EOL YET ; ; COUNT DOWN LINES AND PAUSE FOR INPUT (DIRECT) IF COUNT EXPIRES ; PUSH H LXI H,PAGCNT ;COUNT DOWN DCR M JRNZ PGBAK ;JUMP IF NOT END OF PAGE MVI M,NLINES-2 ;REFILL COUNTER ; PGFLG EQU $+1 ;POINTER TO IN-THE-CODE BUFFER PGFLG MVI A,0 ;0 MAY BE CHANGED BY PGFLG EQUATE CPI PGDFLG ;PAGE DEFAULT OVERRIDE OPTION WANTED? ; IF PGDFLT ;IF PAGING IS DEFAULT JRZ PGBAK ; PGDFLG MEANS NO PAGING, PLEASE ELSE ;IF PAGING NOT DEFAULT JRNZ PGBAK ; PGDFLG MEANS PLEASE PAGINATE ENDIF ; CALL NOECHO ;GET CHAR BUT DON'T ECHO TO SCREEN CPI 'C'-'@' ;^C JZ RSTCPR ;RESTART CPR PGBAK: POP H ;RESTORE HL RET ENDIF ;CPRTYP . 1017c 57438 ; PRINT STRING ENDING WITH ZERO BYTE OR CHAR WITH HIGH BIT SET ; PT'ED TO BY RET ADDR, START WITH <CR><LF> . 1033c 30039 ; PRINT STRING ENDING WITH ZERO BYTE OR CHAR WITH HIGH BIT SET ; PT'ED TO BY HL . 1069c 20763 MOV E,A ;MOVE DESIRED # TO BDOS REG ; IF MAXDRIV LDA MAXDRIV ;CHECK FOR LEGAL DRIVE # CMP E JC ERROR ;DON'T DO IT IF TOO HIGH ENDIF ;MAXDRIV ; . 1161,1170d 5475 1258,1261c 39484 USRNUM: CALL NUMBER ; IF USRMAX LXI H,USRMAX ;PT TO MAXUSR + 1 CMP M ;NEW VALUE ALLOWED? ELSE CPI MAXUSR+1 ;NEW VALUE ALLOWED? ENDIF ;USRMAX ; RC ;RETURN TO CALLER IF SO, ; ELSE FLAG AS ERROR . 1619a 52360 ; IF SECURE MVI C,NRCMDS LDA WHEEL ;SEE IF NON-RESTRCTED CPI RESTRCT JRZ CMS1 ;PASS IF RESTRCTED ENDIF ;SECURE ; . 1665a 35033 IF CPRDIR ; . 1698,1699c 62053 ENDIF ;CPRDIR ; ; DIRECTORY PRINT ROUTINE; ON ENTRY, MSB OF A IS 1 (80H) IF SYSTEM FILES ; EXCLUDED. THIS ROUTINE IS ALSO USED BY ERA. . 1734c 52533 ; IF TWOCOL ANI 01H ;OUTPUT <CRLF> IF 2 ENTRIES PRINTED IN LINE ENDIF ;TWOCOL ; IF NOT TWOCOL TWOPOK EQU $+1 ;FOR APPLE PATCHING ANI 03H ;OUTPUT <CRLF> IF 4 ENTRIES PRINTED IN LINE ENDIF ;NOT TWOCOL ; . 1829a 52815 ERARJ: . 1838,1840c 59149 ; IF EPRMPT ; ; QUERY USER AFTER FILES ARE SEEN, AND GIVE ONE LAST CHANCE TO BACK OUT ; MOV A,E ;HOW MANY FILES DISPLAYED? ORA A JZ RESTRT ;IF NONE, DON'T ASK OR DELETE CALL PRINTC ;PROMPT DB 'Ok','?'+80H CALL CONIN ;GET REPLY FOLDED CPI 'Y' ;YES? JRNZ ERARJ ;GET OUT IF NOT ENDIF ;EPRMPT ; LXI D,FCBDN ;DELETE FILE(S) SPECIFIED JMP DELETE ;RESTART CPR AFTER DELETE . 1863a 59255 IF CPRLST . 1867a 43830 ENDIF ;CPRLST . 1877c 16742 IF CPRTYP TYPE: ENDIF ;CPRTYP ; IF CPRTYP AND CPRLST . 1887a 53321 ENDIF ;CPRTYP AND CPRLST ; IF CPRTYP . 1931,1943c 54106 IF WSTYPE ;WORDSTAR HYPHEN CHECK CPI 1FH ;IS CHAR WORDSTAR EOL HYPHEN? JRNZ NOHYPH ;PASS IF NOT MVI A,'-' ;YES, MAKE IT A REAL HYPHEN NOHYPH: ENDIF ;WSTYPE ; CPI ' ' ;IS CHAR CONTROL CODE? JRNC PRT ;GO BOP CHAR COUNT AND PRINT IF NOT CPI CR ;IS CHAR A CR? JRZ YESCR ;IF SO, GO ZERO B THEN PRINT CPI FFEED ;FORM FEED? JRZ YESCR ;MANY PRINTERS RETURN CARRIAGE ON THIS CPI LF ;LINE FEED? JRZ NOBOP ;PRINT, BUT DON'T BOP B CPI BEL ;BELL? JRZ NOBOP ;GO RING BUT DON'T BOP B CPI TAB ;TAB? JRNZ TYPE2L ;IF NOT, NO OTHER CHOICES, TOSS CONTROL . 1956a 12864 JR TYPE2L ; YESCR: MVI B,0FFH ;COMBINE WITH INC BELOW TO GET ZERO ; PRT: INR B ;INCREMENT CHAR COUNT NOBOP: CALL LCOUT ;PRINT IT . 1965a 58295 ; . 1978,2005c 23034 ENDIF ;CPRTYP . 2030,2031c 65371 JRZ SAVE1 ;CONTINUE IF NO WRITE ERROR JR PRNLE ;GO PRINT ERROR AND RESET DMA . 2036,2041c 64352 JRNZ SAVE3 ;PASS IF OK ; ; PRNLE IS ALSO USED BY MEMLOAD FOR TPA FULL ERROR ; PRNLE: CALL PRINTC ;DISK OR MEM FULL DB 'Ful','l'+80H ; SAVE3: JMP DEFDMA ;SET DMA TO 0080 AND RESTART CPR ; OR RETURN TO MLERR . 2062c 7499 JNZ RSTCPR ;RESTART IF NO, SP RESET EVENTUALLY . 2126a 24593 IF DRUSER ;IF DRIVE/USER CODE OK... . 2131c 54641 SUSER: CALL SETUSR ;SET SPECIFIED USER ENDIF ;DRUSER . 2139a 40238 ; Note: When under SECURE mode, this will select the second ; user area to check for programs (normally user 15). ; . 2145a 41253 IF NOT RAS ;NOT FOR REMOTE-ACCESS SYSTEM . 2150a 26118 ENDIF ;NOT RAS . 2170a 18976 . 2203a 47073 ; IF DRUSER ;DRIVE/USER HACKERY OK? CALL USRNUM ;GET USER #, IF ANY MOV E,A ;GET IT READY FOR BDOS LDA FCBFN ;SEE IF # SPECIFIED CPI ' ' JRNZ SUSER ;SELECT IF WANTED ENDIF ;DRUSER ; . 2225,2226c 31871 ; (NO RETURN IF ERROR OR TOO BIG) POP H ;GET EXECUTION ADDRESS . 2229c 63411 ; PROGRAM. ON ENTRY TO THIS ROUTINE, HL MUST CONTAIN THE EXECUTION . 2251,2252c 61896 LXI H,CIBUFF-1 COM4: INX H . 2258,2260c 1077 JRNZ COM4 . 2263,2265c 10994 MVI B,-1 ;SET CHAR COUNT LXI D,TBUFF ;PT TO CHAR POS DCX H COM6: INR B ;INCR CHAR COUNT INX H ;PT TO NEXT INX D . 2273,2277c 55943 JRNZ COM6 . 2294,2304d 10203 2308c 20373 JNZ ERROR ;MUST BE UNAMBIGUOUS . 2317,2330c 11336 ; EXIT BACK TO CALLER IF NO ERROR. IF COM FILE TOO BIG OR ; OTHER ERROR, EXIT DIRECTLY TO MLERR. ; MEMLOAD: . 2335,2336c 8949 IF SECURE ; ; IF SECURE ENABLED, SEARCH CURRENT DRIVE, CURRENT USER, THEN ; IF IN WHEEL MODE, SEARCH UNDER LAST USER SET BY DFU (ORIG ; "RESUSR" AFTER WARM BOOT) ON CURRENT DRIVE. IF NOT FOUND, OR ; NOT IN WHEEL MODE, THEN SEARCH ON CURRENT DRIVE, UNDER USER ; "DEFUSR". IF STILL NOT FOUND, LOOK AT SAME SERIES OF USERS ; ON DRIVE A. ; DFLAG EQU $+1 ;MARK IN-THE-CODE VARIABLE MVI A,0 ;HAVE WE CHECKED THIS DRIVE ALREADY? ORA A JRNZ MLA0 ;PASS IF SO TO GO TO DRIVE A: LDA WHEEL ;RESTRICTED PROGS ALLOWED? CPI RESTRCT JRZ MLA00 ;PASS IF NOT PUSH B ;PUSH BC LDA DFUSR ;LOAD DEFAULT USER MOV B,A ;PUT IT IN B LDA TSELUSR ;CHECK CURR USER DFUSR EQU $+1 ;DEFAULT USER LOCATION CPI RESUSR ;RESTRICTED USER? MOV A,B ;ASSUME NOT POP B ;RESTORE BC JRNZ SETTSE ;GO TRY IF NOT MLA00: ;SS IF NOT TSELUSR EQU $+1 ;MARK IN-THE-CODE VARIABLE MVI A,0 ;GET CURR USER SUI DEFUSR ;IS IT UNRESTRICTED COM AREA? JRZ MLA0 ;NO MORE CHOICES IF SO STA DFLAG ;MAKE DFLAG NON-ZERO IF NOT MVI A,DEFUSR ; AND TRY UNRESTRICTED COM AREA SETTSE: ENDIF ;SECURE ; IF NOT SECURE . 2374,2376c 298 CPI DEFUSR ;CHECK FOR THE USER AREA.. JRZ MLA0 ;..EQUAL DEFAULT, AND JUMP IF SO ENDIF ;NOT SECURE ; STA TSELUSR ;PUT DOWN NEW ONE . 2388,2391c 8245 ; IF SECURE STA DFLAG ;ALLOW A: SEARCH ENDIF ;SECURE ; ORA M JNZ MLERR ;ERROR IF ALREADY DISK A: MVI M,1 ;SELECT DRIVE A: ; IF NOT SECURE JR MLA ENDIF ;NOT SECURE ; IF SECURE LDA TMPUSR ;GO TO 'CURRENT' USER CODE JR SETTSE ENDIF ;SECURE . 2409,2410c 6646 LOADADR EQU $+1 LXI H,TPA . 2414c 12366 JRC ML4 ;ERROR IF SO . 2428,2437c 63695 JZ RESETUSR ;IF ZERO, OK, GO RESET CORRECT USER # ; ON WAY OUT, ELSE FALL THRU TO PRNLE ; ; TPA FULL ; ML4: CALL PRNLE ;PRINT MSG AND RESET DEF DMA ; ; TRANSIENT LOAD ERROR ; MLERR: ;NOTE THAT THERE IS AN EXTRA RETURN ADDRESS ON ; THE STACK. IT WILL BE TOSSED WHEN ERROR EXITS ; TO RESTRT, WHICH RELOADS SP. CALL RESETUSR ;RESET CURRENT USER NUMBER ; RESET MUST BE DONE BEFORE LOGIN ERRLOG: CALL DLOGIN ;LOG IN DEFAULT DISK JMP ERROR ;FLAG ERROR ; ; ;Section: 5M ;PASS: Enable wheel mode. ;NORM: Disable wheel mode. ; ; Type PASS <password> <cr> to CP/M prompt to enter wheel mode. ; This code can be replaced with PST's PASS.ASM which gives many ; nice little options like no keyboard echo, etc. ; IF INPASS ;WE WANT TO USE THIS CODE, NOT PASS.COM PASS: LXI H,PASSWD ;SET UP POINTERS LXI D,CIBUFF+NCHARS+1 MVI B,PRGEND-PASSWD ;B= LENGTH CKPASS: LDAX D ;TRIAL PW TO A CMP M ;CHECK FOR MATCH JNZ COM ;NOPE.. LOOK FOR PASS.COM INX H ;INCREMENT COUNTER INX D DJNZ CKPASS ;CONTINUE IF MORE MVI A,NOT RESTRCT ;WHEEL = NOT RESTRCT PWOUT: STA WHEEL JMP RESTRT ; NORM: MVI A,RESTRCT JR PWOUT ; PASSWD: DB 'YOURPW' ;YOUR PASSWORD PRGEND: EQU $ ;END OF PASSWORD ; ENDIF ;INPASS . $a 64465 .