mirror of
https://github.com/microsoft/MS-DOS.git
synced 2024-11-29 09:05:46 +00:00
290 lines
7.6 KiB
NASM
290 lines
7.6 KiB
NASM
TITLE COMMAND Language midifiable Code Transient
|
||
|
||
|
||
.xlist
|
||
.xcref
|
||
INCLUDE DOSSYM.ASM
|
||
INCLUDE DEVSYM.ASM
|
||
INCLUDE COMSEG.ASM
|
||
INCLUDE COMSW.ASM
|
||
.list
|
||
.cref
|
||
|
||
INCLUDE COMEQU.ASM
|
||
|
||
DATARES SEGMENT PUBLIC
|
||
EXTRN ECHOFLAG:BYTE
|
||
DATARES ENDS
|
||
|
||
TRANDATA SEGMENT PUBLIC
|
||
EXTRN SUREMES:BYTE,NOTFND:BYTE,ECHOMES:BYTE,CTRLCMES:BYTE
|
||
EXTRN ONMES:BYTE,OFFMES:BYTE,VERIMES:BYTE,BAD_ON_OFF:BYTE
|
||
EXTRN VOLMES:BYTE,GOTVOL:BYTE,NOVOL:BYTE,WeekTab:BYTE
|
||
EXTRN CurDat_Mid:BYTE
|
||
TRANDATA ENDS
|
||
|
||
TRANSPACE SEGMENT PUBLIC
|
||
EXTRN RESSEG:WORD,CURDRV:BYTE,DIRBUF:BYTE,CHARBUF:BYTE
|
||
TRANSPACE ENDS
|
||
|
||
TRANCODE SEGMENT PUBLIC BYTE
|
||
|
||
EXTRN PRINT:NEAR,SCANOFF:NEAR,CRLF2:NEAR,RESTUDIR:NEAR,CERROR:NEAR
|
||
EXTRN CRPRINT:NEAR,OUT:NEAR,ZPRINT:NEAR
|
||
EXTRN ERROR_PRINT:NEAR,MesTran:NEAR,P_Date:NEAR
|
||
|
||
IF KANJI
|
||
EXTRN TESTKANJ:NEAR
|
||
ENDIF
|
||
PUBLIC NOTEST2,ECHO,CNTRLC,VERIFY,PRINTVOL,GetDate,PRINT_DATE
|
||
|
||
ASSUME CS:TRANGROUP,DS:TRANGROUP,ES:TRANGROUP,SS:NOTHING
|
||
|
||
;***************************************
|
||
; ARE YOU SURE prompt when deleting *.*
|
||
|
||
NOTEST2:
|
||
MOV CX,11
|
||
MOV SI,FCB+1
|
||
AMBSPEC:
|
||
LODSB
|
||
CMP AL,"?"
|
||
JNZ ALLFIL
|
||
LOOP AMBSPEC
|
||
ALLFIL:
|
||
CMP CX,0
|
||
JNZ NOPRMPT
|
||
ASKAGN:
|
||
MOV DX,OFFSET TRANGROUP:SUREMES ; "Are you sure (Y/N)?"
|
||
CALL PRINT
|
||
MOV SI,80H
|
||
MOV DX,SI
|
||
MOV WORD PTR [SI],120 ; zero length
|
||
MOV AX,(STD_CON_INPUT_FLUSH SHL 8) OR STD_CON_STRING_INPUT
|
||
INT int_command
|
||
LODSW
|
||
OR AH,AH
|
||
JZ ASKAGN
|
||
CALL SCANOFF
|
||
OR AL,20H ; Convert to lower case
|
||
CMP AL,'n'
|
||
JZ RETERA
|
||
CMP AL,'y'
|
||
PUSHF
|
||
CALL CRLF2
|
||
POPF
|
||
JNZ ASKAGN
|
||
NOPRMPT:
|
||
MOV AH,FCB_DELETE
|
||
MOV DX,FCB
|
||
INT int_command
|
||
PUSH AX
|
||
CALL RESTUDIR
|
||
POP AX
|
||
MOV DX,OFFSET TRANGROUP:NOTFND
|
||
INC AL
|
||
JZ CERRORJ
|
||
RETERA:
|
||
RET
|
||
|
||
|
||
;************************************************
|
||
; ECHO, BREAK, and VERIFY commands. Check for "ON" and "OFF"
|
||
|
||
ECHO:
|
||
ASSUME DS:TRANGROUP,ES:TRANGROUP
|
||
CALL ON_OFF
|
||
JC DOEMES
|
||
MOV DS,[RESSEG]
|
||
ASSUME DS:RESGROUP
|
||
JNZ ECH_OFF
|
||
MOV [ECHOFLAG],1
|
||
RET
|
||
ECH_OFF:
|
||
MOV [ECHOFLAG],0
|
||
RET
|
||
|
||
ASSUME DS:TRANGROUP
|
||
DOEMES:
|
||
MOV AL,BYTE PTR DS:[80H]
|
||
CMP AL,2
|
||
JB PECHO ; Gota have at least 2 characters
|
||
MOV DX,82H ; Skip one char after "ECHO"
|
||
CALL CRPRINT
|
||
JMP CRLF2
|
||
|
||
PECHO:
|
||
MOV DS,[RESSEG]
|
||
ASSUME DS:RESGROUP
|
||
MOV BL,[ECHOFLAG]
|
||
PUSH CS
|
||
POP DS
|
||
ASSUME DS:TRANGROUP
|
||
MOV DX,OFFSET TRANGROUP:ECHOMES
|
||
JMP SHORT PYN
|
||
|
||
|
||
CERRORJ:
|
||
JMP CERROR
|
||
|
||
; is rest of line blank?
|
||
IsBlank:
|
||
MOV SI,81h ; point at text spot
|
||
CALL SCANOFF ; skip separators
|
||
SUB SI,81h ; number of characters advanced
|
||
MOV CX,SI ; put count in byte addressable spot
|
||
CMP CL,DS:[80h] ; compare with count
|
||
return ; bye!
|
||
|
||
;The BREAK command
|
||
CNTRLC:
|
||
CALL ON_OFF
|
||
MOV AX,(SET_CTRL_C_TRAPPING SHL 8) OR 1
|
||
JC PCNTRLC
|
||
JNZ CNTRLC_OFF
|
||
MOV DL,1
|
||
INT int_command ; Set ^C
|
||
RET
|
||
CNTRLC_OFF:
|
||
XOR DL,DL
|
||
INT int_command ; Turn off ^C check
|
||
RET
|
||
|
||
PCNTRLC:
|
||
CALL IsBlank ; rest of line blank?
|
||
JNZ CERRORJ ; no, oops!
|
||
XOR AL,AL
|
||
INT int_command
|
||
MOV BL,DL
|
||
MOV DX,OFFSET TRANGROUP:CTRLCMES
|
||
PYN:
|
||
CALL PRINT
|
||
MOV DX,OFFSET TRANGROUP:ONMES
|
||
OR BL,BL
|
||
JNZ PRINTVAL
|
||
MOV DX,OFFSET TRANGROUP:OFFMES
|
||
PRINTVAL:
|
||
JMP PRINT
|
||
|
||
VERIFY:
|
||
CALL ON_OFF
|
||
MOV AX,(SET_VERIFY_ON_WRITE SHL 8) OR 1
|
||
JC PVERIFY
|
||
JNZ VER_OFF
|
||
INT int_command ; Set verify
|
||
RET
|
||
VER_OFF:
|
||
DEC AL
|
||
INT int_command ; Turn off verify after write
|
||
RET
|
||
|
||
PVERIFY:
|
||
CALL IsBlank ; is rest of line blank?
|
||
JNZ CERRORJ ; nope...
|
||
MOV AH,GET_VERIFY_ON_WRITE
|
||
INT int_command
|
||
MOV BL,AL
|
||
MOV DX,OFFSET TRANGROUP:VERIMES
|
||
JMP PYN
|
||
|
||
ON_OFF:
|
||
MOV SI,FCB+1
|
||
LODSB
|
||
OR AL,20H
|
||
CMP AL,'o'
|
||
JNZ BADONF
|
||
LODSW
|
||
OR AX,2020H ; Convert to lower case
|
||
CMP AL,'n'
|
||
JNZ OFFCHK
|
||
CMP AH,' ' ; ' ' ORed with 20H is still ' '
|
||
JNZ BADONF
|
||
RET ; Carry clear from CMP
|
||
OFFCHK:
|
||
CMP AX,6666H ; 'ff'
|
||
JNZ BADONF
|
||
LODSB
|
||
CMP AL,' '
|
||
JNZ BADONF
|
||
INC AL ; Reset zero Carry clear from CMP
|
||
RET
|
||
BADONF:
|
||
MOV DX,OFFSET TRANGROUP:BAD_ON_OFF
|
||
STC
|
||
RET
|
||
|
||
;********************************
|
||
; Print volume ID info
|
||
|
||
ASSUME DS:TRANGROUP,ES:TRANGROUP
|
||
|
||
PRINTVOL:
|
||
PUSH AX ; AX return from SEARCH_FIRST for VOL ID
|
||
MOV DX,OFFSET TRANGROUP:VOLMES
|
||
CALL PRINT
|
||
MOV AL,DS:[FCB]
|
||
ADD AL,'@'
|
||
CMP AL,'@'
|
||
JNZ DRVOK
|
||
MOV AL,[CURDRV]
|
||
ADD AL,'A'
|
||
DRVOK:
|
||
CALL OUT
|
||
POP AX
|
||
OR AL,AL
|
||
JZ GOODVOL
|
||
MOV DX,OFFSET TRANGROUP:NOVOL
|
||
CALL PRINT
|
||
JMP CRLF2
|
||
GOODVOL:
|
||
MOV DX,OFFSET TRANGROUP:GOTVOL
|
||
CALL PRINT
|
||
MOV SI,OFFSET TRANGROUP:DIRBUF + 8
|
||
MOV CX,11
|
||
MOV DI,OFFSET TRANGROUP:CHARBUF
|
||
MOV DX,DI
|
||
REP MOVSB
|
||
MOV AX,0A0DH
|
||
STOSW
|
||
XOR AX,AX
|
||
STOSB
|
||
JMP ZPRINT
|
||
|
||
;*************************************************************************
|
||
; print date
|
||
PRINT_DATE:
|
||
PUSH ES
|
||
PUSH DI
|
||
PUSH CS
|
||
POP ES
|
||
MOV DI,OFFSET TRANGROUP:CHARBUF
|
||
MOV AH,GET_DATE
|
||
INT int_command ; Get date in CX:DX
|
||
CBW
|
||
CALL GetDate ; get date and put into DI
|
||
MOV AL," "
|
||
STOSB
|
||
MOV SI,OFFSET TRANGROUP:CURDAT_MID
|
||
CALL MESTRAN
|
||
CALL P_DATE
|
||
XOR AX,AX
|
||
STOSB
|
||
MOV DX,OFFSET TRANGROUP:CHARBUF
|
||
CALL ZPRINT
|
||
POP ES
|
||
POP DI
|
||
return
|
||
|
||
GetDate:
|
||
MOV SI,AX
|
||
SHL SI,1
|
||
ADD SI,AX ; SI=AX*3
|
||
ADD SI,OFFSET TRANGROUP:WEEKTAB
|
||
MOV BX,CX
|
||
MOV CX,3
|
||
REP MOVSB
|
||
return
|
||
|
||
TRANCODE ENDS
|
||
END
|
||
|