Short: Grep through memory for strings! *KYZSMLCLXN* Author: Kyzer/CSG Uploader: Kyzer/CSG Type: util/cli Grepmem is named after a unix program that hunts through files for a string or a pattern. But let me tell you now, GREPMEM DOESN'T DO PATTERNS! Instead, it will search through memory for an exact match of the string you supply to it. You can also define which part of memory to search - if you don't, it will assume to search all chip memory. You do not have to, but it is a good idea to put "quotes round the string" that you want to search for. Why? Well, getting your input into memory and printing it out a few times will leave some copies around in memory. If you put quotes around your string, it will search for the string WITHOUT THE QUOTES, and if it finds a copy that *is* in quotes, it will NOT match it. If you are using addresses, you must supply them in hexadecimal. It can be any format, either the naked hex number on it's own, or starting with "$" or "0x", but BEWARE! I parse the address by assuming all characters are part of the address, and "$" and "x" are equal to the digit "0", therefore: 0xDEADBEEF = 00DEADBEEF = DEADBEEF DEAD0xBEEF = DEAD00BEEF and is NOT = DEADBEEF $11 = 11 11$ = 110 1$1 = 101 So be careful about that. There is a final option, PADZEROS, which means (if you switch it on) that: Grepping memory for "c" from $200 to $F00, please wait. Hits: $59B $59D $E52 $ED9 Grep finished, 4 occurences. will become: Grepping memory for "c" from $500 to $F00, please wait. Hits: $0000059B $0000059D $00000E52 $00000ED9 Grep finished, 4 occurences. EXAMPLES: look through chipmem for a powerpacker file 1> grepmem "PP20" look through the amiga rom for references to Amiga 1> grepmem "Amiga" f80000 1000000 If you run the program without supplying any arguements, it will show a brief little help message. The program is pure and can be made resident. There is a little hack for the PADZERO option that is not pure, but it will not cause a problem of any kind except if you use the PADZERO option while another resident copy of grepmem is running, you will get this interesting effect: Grepping memory for "c" from $500 to $5F00, please wait. Hits: $59B $59D $E52 $ED9 $F39 $1035 $2043 $0000059D $00000E52 $00000ED9 .... Requires 2.04 or better. **************************************************************************** * THIS PROGRAM IS PART OF THE "KYZER'S SMALLS" COLLECTION * * * * The KyzSmlClxn is a set of very small, but useful CLI commands. * * * * Source in assembler is included. Install by copying the command to C: * * * * Kyzer/CSG, 49 Fairview Road, AB22 8ZG, Scotland ---- kyzer@4u.net * **************************************************************************** ============================= Archive contents ============================= Original Packed Ratio Date Time Name -------- ------- ----- --------- -------- ------------- 1400 935 33.2% 08-Apr-97 02:56:28 GrepMem 5217 2245 56.9% 08-Apr-97 02:56:20 GrepMem.asm 3110 1362 56.2% 08-Apr-97 05:26:16 GrepMem.readme -------- ------- ----- --------- -------- 9727 4542 53.3% 10-Apr-97 19:05:44 3 files