Batch keyboard input WITH echo (question on asm code)
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From: Friar Broccoli on 31 Jan 2008 08:01 Hello; At this location on the microsoft site: http://support.microsoft.com/kb/77457 There is this program which allows you to take one letter keyboard input from a user in a batch file: DEBUG Executes MS-DOS DEBUG utility -A 100 Begin assembling instructions at memory location 100 xxxx:0100 MOV AH,08 Get character input without echo xxxx:0102 INT 21 Perform MS-DOS service xxxx:0104 CMP AL,0 Compare AL with zero xxxx:0106 JNZ 010A If lead zero, get second code of character xxxx:0108 INT 21 Perform MS-DOS service xxxx:010A MOV AH,4C Terminate process with return code xxxx:010C INT 21 Perform MS-DOS service xxxx:010E <ENTER> -rcx CX 0000 :e -n REPLY.COM -w Writing 000E bytes -q According to the documenting text the first command MOV AH,08 Gets character (keyboard?) input WITHOUT echo. My question is: Can anybody tell me what I would need to change to get keyboard input WITH echo? Dumb useless Note: As I recall I needed to change "CX 0000" to "CX 000E" to get this to work, but my memory is pretty bad. Thanks for any help; Friar Broccoli Robert Keith Elias, Quebec, Canada Email: EliasRK (of) gmail * com Best programmer's & all purpose text editor: http://www.semware.com --------- I consider ALL arguments in support of my views ---------
From: Friar Broccoli on 31 Jan 2008 08:42 My apologies for asking this question: I just needed to change 08 to 01 and what's worse I was already getting an echo and removing it with a CLS On Jan 30, 8:01 am, Friar Broccoli <Elia...(a)gmail.com> wrote: > Hello; > > At this location on the microsoft site: > > http://support.microsoft.com/kb/77457 > > There is this program which allows you to take one letter > keyboard input from a user in a batch file: > > DEBUG Executes MS-DOS DEBUG utility > -A 100 Begin assembling instructions at memory > location > 100 > xxxx:0100 MOV AH,08 Get character input without echo > xxxx:0102 INT 21 Perform MS-DOS service > xxxx:0104 CMP AL,0 Compare AL with zero > xxxx:0106 JNZ 010A If lead zero, get second code of character > xxxx:0108 INT 21 Perform MS-DOS service > xxxx:010A MOV AH,4C Terminate process with return code > xxxx:010C INT 21 Perform MS-DOS service > xxxx:010E <ENTER> > -rcx > CX 0000 > :e > -n REPLY.COM > -w > Writing 000E bytes > -q > > According to the documenting text the first command > > MOV AH,08 > > Gets character (keyboard?) input WITHOUT echo. > > My question is: > Can anybody tell me what I would need to change to get > keyboard input WITH echo? > > Dumb useless Note: > As I recall I needed to change "CX 0000" to "CX 000E" > to get this to work, but my memory is pretty bad. > > Thanks for any help; > > Friar Broccoli > Robert Keith Elias, Quebec, Canada Email: EliasRK (of) gmail * com > Best programmer's & all purpose text editor:http://www.semware.com > > --------- I consider ALL arguments in support of my views ---------
From: Herbert Kleebauer on 31 Jan 2008 12:52 Frank Kotler wrote: > This 'un doesn't have any asm in it at all, but if you're messing with > batch files, you might be amused by it... > > @echo off > echo Please enter your name. > set input= > fc con nul /lb1 /n|date|find "1:">magic.bat > echo set input=%%5 %%6 %%7 %%8 %%9>enter.bat > call magic > echo Hello %input%! > > :cleanup > del magic.bat > del enter.bat > set input= Better do it the "assembly way", than it also works in XP (can't find CON ?!?) and is language independent ("enter"): @echo off echo BATCH_INPUT___hgQX-PPP_XPPP E#HH0E50EG0Ef0Ehs>myinput.com echo myinput.bat hoAX5@@PZYh(a)xX5@D3!r/P[WX,b,-PZh>>myinput.com echo X3!X2ErP,{,{PYX4=0ErWX,j,-PZh@@X3!=set input>>myinput.com echo Enter your name: myinput.com call myinput.bat echo. echo Hello %input% echo.
From: Frank Kotler on 31 Jan 2008 15:40
Herbert Kleebauer wrote: .... > Better do it the "assembly way", True. Sorry... > than it also works in XP > (can't find CON ?!?) "With both hands?" :) > and is language independent ("enter"): The U.N. tried to take a survey, to find out how people felt about food shortages in other countries. It was a complete failure. Aficands didn't know what "food" was, Europeans didn't know what "shortages" were, and Americans didn't know what "other countries" were... But if you're going to start down *that* road, gotta think about unicode support! > @echo off > echo BATCH_INPUT___hgQX-PPP_XPPP E#HH0E50EG0Ef0Ehs>myinput.com > echo myinput.bat hoAX5@@PZYh(a)xX5@D3!r/P[WX,b,-PZh>>myinput.com > echo X3!X2ErP,{,{PYX4=0ErWX,j,-PZh@@X3!=set input>>myinput.com > > echo Enter your name: > myinput.com > call myinput.bat > echo. > echo Hello %input% > echo. Not really "assembly language", but composed of entirely printable machine language. A gem, Herbert! If we eliminate the requirement for printable characters, and resort to assembly language (Intel syntax, even), we can come up with a less cryptic (?) "myinput.com". This is *not* quite the same thing, but seems to work the same... Nicer puzzle the way you did it! :) Best, Frank org 100h mov ah, 3Fh xor bx, bx mov cx, 127 mov dx, buf int 21h mov si, ax mov ah, 3Ch mov dx, outfn xor cx, cx int 21h jc exit mov bx, ax mov cx, setmsg_len add cx, si mov dx, setmsg mov ah, 40h int 21h exit: ret outfn db "myinput.bat", 0 setmsg db "set input=" setmsg_len equ $ - setmsg buf: ; BUFSIZ equ until we run into stack... |