2 of 2 files kent briggs
Last modified Oct 25, 1988 2:09:56 PM
MD5 checksum 4e7219f3d08391e0c3381534cfe8038e
Mime type ASCII text, with CRLF line terminators
Size 1 k
This routine is a patch which breaks the copy protection of Epyx's California Games (version 1.01) for the IBM PC. Written by Kent Briggs 9/23/88 ** Do not modify your original disk ** Copy all your files to another disk or to a subdirectory on your hard disk and put the original disk away in a safe place. California Games shows a version number of 1.01 and the file size for CALGAMES.EXE should be 63467 bytes. The copy protection scheme looks for a bad sector on drive A. We will patch the call to this routine with NOP's (no operation). Put DEBUG.COM (from your DOS disk) in the same directory or make sure it is in the DOS path. Type the following commands: Command Comments ======= ======== ren calgames.exe x.x Rename program for debug debug x.x Load debug e 0482 90 90 90 NOP the 3 byte call w Write file back to the disk q Quit debug ren x.x calgames.exe Restore file name ======= ======== Now run CALGAMES and confirm that the patch works.