v4.0/src/CMD/DISKCOMP/DCOMPP.ASM

   1         PAGE    90,132                  ;AN000;\ f\eA\b\e2
   2         TITLE   DCOMPP.SAL - DISKCOMP SYSTEM COMMAND LINE PARSER
   3 ;****************** START OF SPECIFICATIONS *****************************
   4 ; MODULE NAME: DCOMPP.SAL
   5 ;
   6 ; DESCRIPTIVE NAME: Include the DOS system PARSER in the SEGMENT
   7 ;                   configuration expected by the modules of DISKCOMP.
   8 ;
   9 ;FUNCTION: The common code of the DOS command line PARSER is optimized by
  10 ;          the setting of certain switches that cause the conditional
  11 ;          assembly of only the required portions of the common PARSER.
  12 ;          The segment registers are ASSUMED according to the type .COM.
  13 ;          The Common PARSER is then INCLUDEd.
  14 ;
  15 ; ENTRY POINT: SYSPARSE, near
  16 ;
  17 ; INPUT:
  18 ;       ES - has seg id of the SEGMENT
  19 ;            that contains the input control blocks,
  20 ;            defined below.
  21 ;
  22 ;       DI - offset into ES of the PARMS INPUT BLOCK
  23 ;
  24 ;       DS - has seg id of the SEGMENT
  25 ;            that contains the DOS input COMMAND
  26 ;            string, which is originally presented at 81h
  27 ;            in the PSP.
  28 ;
  29 ;       SI - offset into DS of the text of the DOS input COMMAND string
  30 ;            as originally presented at 81H in the PSP.
  31 ;
  32 ;       DX - zero
  33 ;
  34 ;       CX - ordinal value, intially zero, updated on each subsequent call
  35 ;            to the value returned in CX on the previous call.
  36 ;
  37 ;       CS - points to the segment containing the
  38 ;            INCLUDE PARSE.ASM statement
  39 ;
  40 ;       DS - also points to the segment containing the INCLUDE
  41 ;            PARSE.ASM statement.
  42 ;
  43 ; EXIT-NORMAL:  Output registers:
  44 ;        AX - return code:
  45 ;           RC_No_Error     equ     0    ; No error
  46 ;           RC_EOL          equ     -1   ; End of command line
  47 ;
  48 ;        DX - Offset into ES of the selected RESULT BLOCK.
  49 ;        BL - terminated delimiter code
  50 ;        CX - new operand ordinal
  51 ;        SI - set past scanned operand
  52 ;
  53 ; EXIT-ERROR: Output registers:
  54 ;        AX - return code:
  55 ;           RC_Too_Many     equ     1    ; Too many operands
  56 ;           RC_Op_Missing   equ     2    ; Required operand missing
  57 ;           RC_Not_In_SW    equ     3    ; Not in switch list provided
  58 ;           RC_Not_In_Key   equ     4    ; Not in keyword list provided
  59 ;           RC_Out_Of_Range equ     6    ; Out of range specified
  60 ;           RC_Not_In_Val   equ     7    ; Not in value list provided
  61 ;           RC_Not_In_Str   equ     8    ; Not in string list provided
  62 ;           RC_Syntax       equ     9    ; Syntax error
  63 ;
  64 ; INTERNAL REFERENCES:
  65 ;    ROUTINES: SYSPARSE:near (INCLUDEd in PARSE.ASM)
  66 ;
  67 ;    DATA AREAS: none
  68 ;
  69 ; EXTERNAL REFERENCES:
  70 ;    ROUTINES: none
  71 ;
  72 ;    DATA AREAS: control blocks pointed to by input registers.
  73 ;
  74 ; NOTES:
  75 ;        This module should be processed with the SALUT preprocessor
  76 ;        with the re-alignment not requested, as:
  77 ;
  78 ;               SALUT DCOMPP,NUL,;
  79 ;
  80 ;        To assemble these modules, the alphabetical or sequential
  81 ;        ordering of segments may be used.
  82 ;
  83 ;        For LINK instructions, refer to the PROLOG of the main module,
  84 ;        DISKCOMP.SAL.
  85 ;
  86 ;****************** END OF SPECIFICATIONS *****************************
  87         IF1                             ;AN000;
  88             %OUT    COMPONENT=DISKCOMP, MODULE=DCOMPP.SAL... ;AN000;
  89         ENDIF                           ;AN000;
  90 ; =  =  =  =  =  =  =  =  =  =  =  =
  91         INCLUDE PATHMAC.INC             ;AN013;
  92 CSEG    SEGMENT PARA PUBLIC 'CODE'      ;AN000;
  93         ASSUME  CS:CSEG,DS:CSEG,ES:CSEG,SS:CSEG ;AN000;
  94
  95         PUBLIC  SYSPARSE                ;AN000;SUBROUTINE ENTRY POINT
  96
  97 INCSW   EQU     0                       ;AC013;DO NOT INCLUDE PSDATA.INC
  98 FARSW   EQU     0                       ;AN000;CALL THE PARSER BY NEAR CALL
  99 DATESW  EQU     0                       ;AN000;SUPPRESS DATE CHECKING
 100 TIMESW  EQU     0                       ;AN000;SUPPRESS TIME CHECKING
 101 FILESW  EQU     0                       ;AN000;SUPPRESS CHECK FILE SPECIFICATION
 102 CAPSW   EQU     0                       ;AN000;SUPPRESS FILE TABLE CAPS
 103 CMPXSW  EQU     0                       ;AN000;SUPPRESS CHECKING COMPLEX LIST
 104 DRVSW   EQU     1                       ;AN000;DO SUPPORT DRIVE ONLY FORMAT
 105 QUSSW   EQU     0                       ;AN000;SUPPRESS SUPPORT OF QUOTED STRING FORMAT
 106 NUMSW   EQU     0                       ;AN000;SUPPRESS CHECKING NUMERIC VALUE
 107 KEYSW   EQU     0                       ;AN000;SUPPRESS KEYWORD SUPPORT
 108 SWSW    EQU     1                       ;AN000;DO SUPPORT SWITCHES
 109 VAL1SW  EQU     0                       ;AN000;SUPPRESS SUPPORT OF VALUE DEFINITION 1
 110 VAL2SW  EQU     0                       ;AN000;SUPPRESS SUPPORT OF VALUE DEFINITION 2
 111 VAL3SW  EQU     0                       ;AN000;SUPPRESS SUPPORT OF VALUE DEFINITION 3
 112 BASESW  EQU     1                       ;AN012;SPECIFY, PSDATA POINTED TO BY "DS"
 113         INCLUDE PSDATA.INC              ;AN013;PARSER DATA AREA
 114         PATHLABL DCOMPP                 ;AN013;
 115 ;.XLIST                                  ;AN000;
 116 ;.XCREF                                  ;AN000;
 117         INCLUDE PARSE.ASM               ;AN000;
 118 .LIST                                   ;AN000;
 119 .CREF                                   ;AN000;
 120         PATHLABL DCOMPP                 ;AN013;
 121 CSEG    ENDS                            ;AN000;
 122         END                             ;AN000;
 123 \1a