*´SDT NOT ò}SDT SUB ÎpSDT CRC%| SDT.SUB SDT.SUB is a CP/M-80 SUBMIT style batch process command file which will overlay the standard DDT.COM, and create a new, enhanced form called SDT.COM. SDT has the following enhancements vis-a-vis the plain vanilla DDT. (part of the CPM utility set) 1) B command creates Block of text for search. 2) Exxxx command Explores memory for string from xxxx. 3) Cxxxx command Changes memory with ASCII input from xxxx. 4) Jn command Jumps to new default drive n (0=A:, etc.). 5) V command Views directory at first match to I command. 6) W command Where is next match. SDT is the creation of Dr. William Parke, and is described in the December 1983 issue of >CHUG, the newsletter of the Capital Heath Users' Group. Inc. (PO Box 2653, Fairfax, VA., 22031). The information here is reproduced with credit to Dr. Parke, who may be contacted at the above address, for further information. The article in the magazine included step-by-step instructions for keying in the source for the modification. My only contribution to the utility of this idea was to make up the SUB file to automate the process, and save the keystrokes required. For an original DDT.COM crc of 34 B9, the newly created SDT.COM was found to have a crc of 3D BA (via CRCK-42.COM). SDT can be quickly installed by EX14. Walt Jung 12/24/83 BHEC RCPM (301)-661-2175  2175 ; Along with this file, 'SDT.SUB', and 5k of free space, ; have a copy of ex14.com and ddt.com on the A: disc. ; Invoke as 'EX SDT' ; See original SDT article by Dr. William Parke, in >CHUG, Dec 1983. ; This sub file prepared by Walt Jung BHEC RCPM, (301)-661-2175 ddt ddt.com ;-l100 ;0100 LXI B,0FBC ;must be as above s102 10 . ; m11bc,13bf,21bc f11bc,14ff,0 m21bc,23bf,12bc s11bc CD 15 0C CD 90 0C 2A B7 0F 3D C2 CC 0F CD 66 0C 11 81 FF 1A A7 CA AB 0B 47 13 1A BE 23 C2 D7 0F 13 05 CA EA 0F 1A BE 23 CA DC 0F C3 CC 0F CD 2E 0C C3 FE 06 CD 90 0C 3D C2 AB 0B CD 66 0C CD 15 0C E5 CD 2E 0C CD C5 0B E1 7E FE 20 D2 0D 10 3E 2E FE 7F DA 14 10 3E 2E E5 CD C7 0B CD C5 0B 0E 01 CD 05 00 E1 FE 7F CA FE 06 77 23 C3 FA 0F CD 15 0C 11 80 FF 3E 50 12 0E 0A CD 05 00 C3 FE 06 31 BC 10 0E 1A 11 80 00 CD 05 00 0E 11 11 5C 00 CD 05 00 C3 5A 10 31 BC 10 0E 12 CD 05 00 F5 CD 15 0C F1 3C CA AB 0B C6 2F CD C7 0B C3 FE 06 CD 90 0C 3D C2 AB 0B CD 66 0C CD 15 0C 0E 0E 5D CD 05 00 C3 FE 06 . ; s939 2B 10 F0 0F C6 07 BC 0F . ; s949 6B 10 . ; s961 3C 10 52 10 . ; s14b3 02 48 92 10 10 82 49 22 48 90 20 41 20 04 24 80 12 00 00 48 04 21 24 49 00 80 . ; s130 53 . g0 save 20 sdt.com ;now test as per CHUG article 48 04 21 24 49 00 80 . ; s130 53 . g0 save 20 sdt.com CRCK ver 4.2 CTL-S pauses, CTL-C aborts --> FILE: DDT .COM CRC = 34 B9 --> FILE: SDT .COM CRC = 3D BA DONE