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1994-07-13
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File Comparison Utilities Under ZCPR2
CRC Check Utility Under ZCPR2
Examples
:File Comparison Utilities Under ZCPR2
Tw∩á utilitie≤á arσá provideΣ witΦ ZCPR▓ t∩á comparσá files« ì
Both utilities are simple in form to use. These utilities are:
COMPARE -- Compares two files by reading one, computing its
CRC value, saving its CRC and size, and then
reading the other and seeing if they match
DIFF -- Prints out a difference listing between two files;
different bytes encountered at the same
relative displacements from the beginning of
thσ file≤ arσ printeΣ iε hexadecimal¼
decimal, and ASCII forms
These commands are invoked by the following forms:
COMPARE or COMPARE // <-- Print Help
COMPARE dir:file1.typ,dir:file2.typ M <-- Compare
DIFF or DIFF // <-- Print Help
DIFF dir:file1.typ,dir:file2.typ M <-- Compare
Thσá filσ spec≤ mus⌠ bσ unambiguou≤ o≥ aε erro≥ wil∞ result« ì
Thσ DIR║á prefi° i≤ optional¼á anΣ ma∙ bσ ß nameΣ director∙ o≥á ß ì
DU: form.
Thσ "Mó i≤ optional¼ and¼ iµ present¼ select≤ ß Multiplσ Ruε ì
Modσá iε whicΦ thσ use≥ i≤ alloweΣ t∩ changσ disk≤ a≤ hσ desires¼ ì
ß COMPAR┼ o≥ DIF╞ i≤ done¼á anΣ theε thσ proces≤ continue≤á unti∞ ì
the user aborts it.
:CRC Check Utility Under ZCPR2
Thσá CR├á Checδ Utilit∙ distributeΣ witΦ ZCPR▓ compute≤á CR├ ì
value≤á fo≥á ß lis⌠ oµ files«á I⌠ use≤ thσ samσá CR├á polynomia∞ ì
employeΣ b∙ KeitΦ Peterseε iε hi≤ CRC╦ program¼á and¼á naturally¼ ì
the values come out the same.
Thσá CR├ Checδ Utilit∙ compute≤ thσ CR├ value≤ oµ ß selecteΣ ì
se⌠á oµ file≤ anΣ print≤ ou⌠ thσ filσá names¼á thei≥á sizes¼á anΣ ì
thei≥ CR├ value≤ iε hexadecimal« ┴ lis⌠ oµ ambiguou≤ file≤ name≤ ì
ma∙á bσá provideΣá t∩ CRC¼á anΣ i⌠ als∩ respond≤ t∩ ßá serie≤á oµ ì
options.
The general form of the CRC command is:
CRC dir:afn1,dir:afn2,... ooo...
Iεá al∞á ambiguou≤á filσá references¼á thσá DIR║á prefi°á i≤ ì
optional«á Thi≤ prefi° ma∙ bσ ß nameΣ director∙ o≥ ßá DU║á form« ì
The options available under CRC are:
C - Comment Output; the user is given an opportunity
to enter comments for each file
D - Disk Output; send output to the disk file CRC.CRC
as well as to the console
I - Inspect and approve file before CRC is computed
P - Printer Output; send output to the printer as
well as to the console
Thesσ option≤ ma∙ bσ combineΣ iε an∙ manne≥ desired«á ┴ CR├ ì
command of the form "CRC" or "CRC //" prints a help message.
:Examples
B7>compare help:lu.hlp,zcpr:lu.hlp
COMPARE Version 1.4
Source File 1 -- A 16: LU .HLP
Source File 2 -- A 11: LU .HLP
** Files are Identical **
B7>compare help.txt,s100.txt
COMPARE Version 1.4
Source Fie 1 -- B 7: HELP .TXT
Source File 2 -- B 7: S100 .TXT
** Files are Different **
B7>compare help:lu.hlp,c0:
COMPARE Version 1.4
Source File 1 -- A 16: LU .HLP
Source File 2 -- C 0: LU .HLP
LU .HLP File Not Found
B7>compare help:du2.hlp,c0:
COMPARE Version 1.4
Source File 1 -- A 16: DU2 .HLP
Source File 2 -- C 0: DU2 .HLP
** Files are Identical **
B7>compare help:du2.hlp,c0: m
COMPARE Version 1.4
Source File 1 -- A 16: DU2 .HLP
Source File 2 -- C 0: DU2 .HLP
Change Disks if Desired and Type ^C or A to Abort or <RETURN> to Continue -
Source File 1 -- A 16: DU2 .HLP
Source File 2 -- C 0: DU2 .HLP
** Files are Identical **
COMPARE Version 1.4
Source File 1 -- A 16: DU2 .HLP
Source File 2 -- C 0: DU2 .HLP
Change Disks if Desired and Type ^C or A to Abort or <RETURN> to Continue -
B7>diff help:du2.hlp,c0:
DIFF Version 1.6
Source File 1 -- A 16: DU2 .HLP
Source File 2 -- C 0: DU2 .HLP
NO Differences Noted in Files
B7>save 1 test.bin
B7>zsid test.bin
ZSID VERS 1.4
NEXT PC END
0200 0100 A2FF
#s100
0100 C3 0
0101 70 1
0102 01 2
0103 FF .
#s1f0
01F0 09 0
01F1 3C 0
01F2 3D 0
01F3 32 .
#^C
B7>save 1 test2.bin
B7>compare test.bin,test2.bin
COMPARE Version 1.4
Source File 1 -- B 7: TEST .BIN
Source File 2 -- B 7: TEST2 .BIN
** Files are Different **
B7>diff test.bin,test2.bin
DIFF Version 1.6
Source File 1 -- B 7: TEST .BIN
Source File 2 -- B 7: TEST2 .BIN
Rel Offset B 7: TEST .BIN B 7: TEST2 .BIN
Hex Dec Hex Dec Asc Hex Dec Asc
0000 0 C3 195 C 00 0 .
0001 1 70 112 p 01 1 .
0002 2 01 1 . 02 2 .
00F0 240 09 9 . 00 0 .
00F1 241 3C 60 < 00 0 .
00F2 242 3D 61 = 00 0 .
B7>crc *.* di
CRC Version 2.0
** File Inspection **
COMPARE .HLP -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? Y Selected
CRC .CRC -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? N NOT Selected
HELP .TXT -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? Y Selected
S100 .TXT -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? S
** Inspection Complete **
1 File: COMPARE .HLP -- Size: 4K -- CRC: 9F 8E
2 File: HELP .TXT -- Size: 4K -- CRC: 77 6E
B7>type crc.crc
1 File: COMPARE .HLP -- Size: 4K -- CRC: 9F 8E
2 File: HELP .TXT -- Size: 4K -- CRC: 77 6E
B7>crc *.* icd
CRC Version 2.0
** File Inspection **
COMPARE .HLP -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? Y Selected
CRC .CRC -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? N NOT Selected
HELP .TXT -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? Y Selected
S100 .TXT -- Select (Y/N/S=Skip Rest/Q=Quit/other=Y)? S
** Inspection Complete **
1 File: COMPARE .HLP -- Size: 4K
Comment? Help File for COMPARE and DIFF and CRC
-- CRC: 9F 8E
2 File: HELP .TXT -- Size: 4K
Comment? Note on Help Files
-- CRC: 77 6E
Comment: Note on Help Files
B7>type crc.crc
1 File: COMPARE .HLP -- Size: 4K -- CRC: 9F 8E
Comment: Help File for COMPARE and DIFF and CRC
2 File: HELP .TXT -- Size: 4K -- CRC: 77 6E
Comment: Note on Help Files