00_INDEX
64colors.zip 06-03-1990 How to display all 64 EGA colors on VGA,w/Csrc abmake14.zip 08-09-1989 An improved 'make' utility w/source actlib17.zip 10-25-1993 General purpose libs w/source for C/C++ pgmers adtdv2.zip 01-26-1997 C/C++ Programmers time, date, and cal lib. advc11.zip 04-23-1987 Thomas Hanlin's advanced 'C' routines. v.1.1 algo093b.zip 04-25-1998 Algomath-Library v0.91: C-lib of math routines ansi-c.zip 11-30-1987 Header file activates ANSI.SYS for C apm.zip 10-08-1988 Arbitrary Precision Math lib MS-C 5.x/TC/Unix argtest.c 09-16-1985 Tests function, getargs() asyncpec.zip 05-03-1989 Interrupt-driven async comm rtns for MSC 5.x asynlib2.zip 03-20-1991 ASYNC communications library callable from 'C' b2obj11b.zip 06-11-1994 ACA BIN2OBJ v1.10b: Binary to .OBJ converter backlog.c 08-15-1988 Get latest add to BACKUP.LOG from DOS backup/L bestl232.zip 09-12-1994 Extensive C programmer's library (FreeWare) bin2c.zip 09-03-1996 Convert a binary file to a C structure bituudec.c 12-24-1987 MSDOS/VMS UUdecode fixes lost trailing spaces bltc127.zip 11-15-1996 Bullet C/C++ 16-bit btree/DBF database engine bmp2cp11.zip 09-20-1997 BMP file to C/C++ source file converter bmp2dat1.zip 11-28-1998 Converts 256-color BMP files to data files boss01.zip 01-13-1991 Window Boss 01.07.91, windows for C pgms, 1of4 boss02a.zip 12-29-1990 Window Boss 01.07.91, windows for C pgms, 2of4 boss02b.zip 12-29-1990 Window Boss 01.07.91, windows for C pgms, 3of4 boss03.zip 01-13-1991 Window Boss 01.07.91, windows for C pgms, 4of4 bplus11.zip 01-23-1989 B-tree indexed file access in 'C', v1.1 bstr20.zip 03-29-1995 BASIC-style string functions for C and C++ btbwr10b.zip 08-02-1995 Number base conversion pgm/library/DLL w/C src btoa.zip 01-24-1989 'C' source for binary-to-ascii convert pgm bullet25.zip 07-02-1997 Database engine for DOS32,Win32s,Win95,NT,OS/2 c--final.zip 11-28-1996 Sphinx C--: Compiler, examples & source c-eval.zip 04-23-1993 C source to evaluate mathematical expressions c-flow.zip 06-24-1985 Display flow of 'C' programs c4window.zip 08-06-1985 Window routines for 'C' programs c60probs.zip 06-17-1990 List of problems found with MS C v6.0 c_check.zip 01-05-1986 C language syntax checker c_flow.zip 06-23-1985 Display flow of 'C' programs cacoph10.zip 04-19-1994 PC speaker music library for Turbo C and C++ calendah.zip 01-24-1997 ANSI C source for calendar calculations cbase102.zip 09-22-1991 C routines for database applications, w/docs cbooks.zip 06-29-1989 List of currently available C language books cc01.zip 08-28-1985 'C' language functions and programs - 1 of 4 cc02.zip 01-03-1986 'C' language functions and programs - 2 of 4 cc03.zip 01-03-1986 'C' language functions and programs - 3 of 4 cc04.zip 11-25-1985 'C' language functions and programs - 4 of 4 ccc1053a.zip 12-24-1989 Complete C: learn/experiment w/OO systems,1of3 ccc1053b.zip 12-24-1989 Complete C: learn/experiment w/OO systems,2of3 ccc1053c.zip 12-24-1989 Complete C: learn/experiment w/OO systems,3of3 ccdl170e.zip 08-27-1998 CCDL: 32-bit C compiler for DOS/DPMI ccdl170l.zip 08-27-1998 CCDL 32-bit C compiler RTL sources ccdl170s.zip 08-27-1998 CCDL 32-bit C compiler sources ccompile.zip 06-05-1985 Small 'C' compiler cdecl.zip 10-20-1987 Decomposes 'C' language declarations cephes27.zip 08-03-1998 Cephes Mathematical Library (C sources) cfgop110.zip 08-02-1995 I/O for Windows type INI/CFG files. (C source) cfog102.zip 05-01-1995 C source code obfuscator cgazv5n3.zip 05-07-1991 Code from the C Gazette - Spring 1991 issue cguide3.zip 06-04-1996 The PC programmer's guide to C cl_7_bug.zip 10-08-1992 Bug examples for Microsoft C-Compiler CL-7.00 clp_v11.zip 10-13-1989 General purpose 'C' command line processor clt167.zip 03-29-1994 CLint v1.67: C source checking tool cm100exe.zip 11-15-1991 MAKE for MSC/WIN SDK (exe and samples), 1of4 cm100hlp.zip 11-15-1991 MAKE for MSC/WIN SDK (QuickHelp), 2of4 cm100txt.zip 11-15-1991 MAKE for MSC/WIN SDK (Help: text format), 3of4 cmake100.zip 11-15-1991 MAKE for MSC/WIN SDK (description), 4of4 cnews001.zip 06-22-1988 Issue #1 'C' programmer's newsletter cnews002.zip 06-22-1988 Issue #2 'C' programmer's newsletter cnews003.zip 02-05-1988 Issue #3 'C' programmer's newsletter cnews004.zip 02-21-1988 Issue #4 'C' programmer's newsletter cnews005.zip 03-07-1988 Issue #5 'C' programmer's newsletter cnews006.zip 04-10-1988 Issue #6 'C' programmer's newsletter cnews007.zip 05-29-1988 Issue #7 'C' programmer's newsletter cnews008.zip 06-14-1988 Issue #8 'C' programmer's newsletter cnews009.zip 07-17-1988 Issue #9 'C' programmer's newsletter cnews010.zip 08-15-1988 Issue #10 'C' programmer's newsletter cnews011.zip 09-09-1988 Issue #11 'C' programmer's newsletter cnews012.zip 10-30-1988 'C' programming & compiler review #12 cnews013.zip 12-27-1988 'C' Elec. Newsletter/Journal Vol 2 #13 cnews014.zip 02-22-1989 'C' Elec. Newsletter/Journal Vol 2 #14 cnews015.zip 07-04-1989 'C' Elec. Newsletter/Journal Vol 2 #15 cnews016.zip 07-26-1989 'C' Elec. Newsletter/Journal Vol 2 #16 cnews017.zip 09-24-1989 'C' Elec. Newsletter/Journal Vol 2 #17 cnews018.zip 12-28-1989 'C' Elec. Newsletter/Journal Vol 2 #18 cnews019.zip 08-04-1990 'C' Elec. Newsletter/Journal Vol 2 #19 commasm.zip 07-13-1988 Info for programming MS-DOS COMM ports configf.zip 04-30-1995 Use Windows-like config files in C (w/src) conio.zip 06-08-1987 Direct console I/O ASM routines for MicrosoftC consl10.zip 09-30-1995 Console text output 16/32 bit C/C++ library consl11.zip 06-16-1996 Console text output 16/32 bit C/C++ library cp14.zip 03-19-1992 C code outliner (DDJ8808, tweaked for BC++2.0) cpc2.zip 01-21-1996 CodePrint for C/C++ Version 2.02 Jan 1996 cprimes.zip 08-17-1998 Cprimes: Example C prog to find Prime Numbers cprot217.zip 06-14-1992 C and C++ incremental prototypes extractor crc-c.zip 07-29-1987 CRC routines for C crnchr22.zip 04-12-1993 C Libs - FFT,Wavelet,Coherence,Filter,Regr.etc crobots.zip 12-12-1985 Game for 'C' programmers. Make own robots crt1_6.zip 04-19-1998 Text mode drawing output/input C/C++ library crt1_6s.zip 04-19-1998 Source code for crt1_6 C/C++ functions cscop120.zip 01-01-1995 C source code analysis utility csourc.zip 07-16-1987 Turbo-C source file manager csr30_1.zip 07-11-1988 CSpotRun 'C' func lib., hdrs & examples 1of3 csr30_2.zip 07-11-1988 CSpotRun 'C' func lib., precompiled libs 2of3 csr30_3.zip 07-11-1988 CSpotRun 'C' func lib,. documentation 3of3 csubrtns.zip 05-17-1987 C Subroutines #2 ctask22d.zip 05-21-1996 Multitasking kernel in C w/ASM & C source ctell.zip 03-08-1987 Translates C declarations into English ctools10.zip 04-05-1992 Generic data structures in C (lists, hashtabs) ctopas.zip 12-06-1989 Converts 'C' source to Pascal source (simple) ctrl_c.c 09-05-1988 Intercept Ctrl C's ctutorde.zip 04-25-1994 C language tutorial, style, and quiz program cug236.zip 01-02-1980 Highly portable utilities from C Users' Group curpos.asm 09-14-1983 Cursor positioning for C cwd.c 08-15-1988 Change working directory for C cxl52_1.zip 02-16-1990 Window/menu/mouse C func lib, docs/utils, 1of2 cxl52_2.zip 02-16-1990 Window/menu/mouse C func lib, libraries, 2of2 cxlhderr.zip 11-06-1989 C source for critical error handler with CXL cxt250.zip 06-21-1998 C source code analysis dbflib20.zip 11-28-1996 Borland C library for dBase (.DBF) files dbreak.zip 02-12-1991 Disable CTL-C/CTL-BREAK/CTL-ALT-DEL. C source debugc.zip 07-18-1985 #include level printf() debugging delete.c 07-30-1987 Delete a file dflat15.zip 11-14-1992 Dflat: SAA-compatible windowing LIB w/C source dflat386.zip 10-04-1994 Update to DFLAT windowing system for 386 & up dirlib.c 12-31-1988 Unix 'dirlib' package ported to MS-C dlc-tsr.zip 02-12-1987 TSR interface for Datalight C dmake38e.zip 01-24-1992 'make' util for MS-DOS C programmers. EXE/doc dmake38s.zip 01-26-1992 C src: 'make' util for MS-DOS & Unix SysV/BSD dosdbg20.zip 10-11-1996 C runtime checker for Microsoft C v8.00c dxlib60.zip 06-28-1996 DOS Extender Library for Protected-Mode DOS ems4c10.zip 04-10-1996 Expanded Memory Management for C emsif24a.zip 06-26-1993 EMS interface for Borland/Turbo/MS C[++] encom100.zip 07-07-1992 EnCom v1.00: C async lib - supports 16550 encom_td.zip 07-07-1992 Sample terminal pgm using EnCom1.0 C async lib eoue1097.zip 11-24-1997 C source and font to handle Japanese text fe1.zip 02-05-1992 Bitmap editor for Zortech C++'s FlashGraph Lib fft142.zip 06-05-1991 Fast Fourier transforms, with C source filtr30s.zip 04-20-1995 Text file searcher, simultan. multi-term check fortify.zip 02-04-1995 C/C++ memory tracker and protector, R1.0 func11.zip 08-01-1995 Mathematical function Compilator for C pgms function.zip 06-23-1995 Mathematical function Compilator for C pgms fxvmm210.zip 04-05-1996 Virtual Memory Manager. C source gdir.c 06-13-1986 Enhanced DIR w/attributes, hidden/system files gencsrc.zip 11-20-1987 Coronado's Generic 'C' tutor v2.0, (1 of 2) genctxt.zip 11-20-1987 Coronado's Generic 'C' tutor v2.0, (2 of 2) getargs.c 09-16-1985 Get cmd line args getargs.doc 09-16-1985 Doc for GETARGS.C getargs.h 09-16-1985 Part of GETARGS.C getf.zip 11-20-1988 Locate 'C' source file w/particular function gifsave.zip 09-26-1992 C source to save GIF images gkit05b.zip 06-25-1996 GameKit v0.5 C/C++/ASM game library for Watcom glob.zip 02-10-1988 Change wildcard filespec to list of files gnuctags.zip 11-20-1989 Microsoft C 5.1 port of GNU [ce]tags graph.zip 07-21-1987 ASM CGA/EGA graphics routines for MS C (4.0) gymake12.zip 11-18-1988 Make utility for MS-DOS w/C source v1.2 handles2.zip 04-08-1992 Get >20 handles in TC (also DJGPP). Docs & src hgraphic.zip 04-15-1988 Hercules graphics routines for MS Quick C hsort.c 08-05-1985 General purpose heapsort for C ibmcom.zip 04-28-1989 Interrupt-driven comm routines for Turbo C ibmcur.c 06-23-1984 C & ASM fast screen write, save, and restore ibmcur.doc 06-24-1984 Short description of functions in IBMCUR.C idl10.zip 08-14-1996 Indicates ifdef level nesting in c/c++ source idp302ev.zip 12-03-1996 idllPower v3.02: DOS DLL support. (Watcom 32) imc9101.zip 01-17-1991 Inside Microsoft C Journal source, Jan. 1991 imc9102.zip 01-24-1991 Inside Microsoft C Journal source, Feb. 1991 imc9103.zip 03-04-1991 Inside Microsoft C Journal source, March 1991 imc9104.zip 03-04-1991 Inside Microsoft C Journal source, April 1991 imc9106.zip 05-08-1991 Inside Microsoft C Journal source, June 1991 indents.zip 05-29-1993 Indent C & C++, (vanilla) C source code indentx.zip 05-29-1993 Indent & format C & C++ source. DOS exe & docs inparser.zip 01-14-1986 Extracts tokens from an input string input.c 05-04-1986 Place batch input in environment input.doc 05-04-1986 Examples of usage of INPUT.C int24_c2.zip 04-15-1990 C routine intercepts Abort/Retry/Ignore prompt intercep.asm 07-05-1987 Prevent printing ^C with signal() in MS-C interp11.zip 03-29-1998 Command interpreter (C library) isd31.zip 02-28-1997 Icon and sprite designer for high resolution janus11.zip 06-04-1996 BBS door construction library for Borland C jazdoc.zip 07-23-1986 Documentation for JAZLIB.ZIP jazlib.zip 08-15-1986 C utility library with source (w/C) jlib_1-7.zip 11-21-1996 JLib v1.7: Fast Portable Graphics Library jpl-c.zip 08-06-1988 JPL library of portable C routines julcal10.zip 12-21-1992 C language sources for Julian date programs julin105.zip 08-01-1993 Source in C for calendar date calculations jxfn_1-0.zip 11-21-1996 Font Functions for use with JLib v1.7+ jzchkdsk.zip 07-21-1986 Better CHKDSK program kafsrt20.zip 06-13-1993 Complete file system and sort pkg for C pgmers kbdhandl.zip 07-31-1993 Multiple keypress INT 9 keyboard handler w/src kernel.zip 11-24-1986 Multitasking kernel from DDJournal, w/ASM src kh-date.zip 07-21-1996 C/C++ library - routines for date calculations lex.zip 08-25-1986 DeSmet C source for PD version of Unix LEX libkb100.zip 07-23-1996 Advanced and portable low-level keyboard lib lingua14.zip 06-30-1996 Easy multi-language support for C programs locale12.zip 11-16-1997 Locales' support for DOS (C source) lpc052.zip 04-16-1994 LPC-Parcor-Cepstrum code gen. for C programers lzpip104.zip 04-17-1995 Compressed/deflated file access library maek.c 08-25-1985 Public domain MAKE maek.doc 08-25-1985 DOC file for MAEK.C make-pd.zip 02-15-1987 Public domain MAKE make.c 06-28-1984 Public domain MAKE make.h 06-29-1984 Header file for MAKE.C public domain MAKE makedep.zip 09-29-1994 Dependency generator for MAKE, with C source match110.zip 03-11-1991 Unix sh-style regex parser (wild cards), C src math.c 03-23-1984 Double precision math rtns for Lattice or MS-C math.h 03-23-1984 Header file for MATH.C matrix04.zip 05-24-1992 Small Matrix toolbox v0.4 for C programmers matrixc.zip 02-18-1994 C source for matrix algebra and 3D line shapes matrx042.zip 04-16-1994 Small Matrix Toolbox v0.42 for C programmers mc302emb.zip 03-18-1994 MICRO-C Embedded Control kit - Test-drive vers mc302pc1.zip 03-18-1994 MICRO-C PC 'C' compiler v3.02 mc302pc2.zip 03-18-1994 MICRO-C PC Example programs mcomm600.zip 04-07-1996 Interrupt-driven async LIB for MS-C/Turbo-C/BC mfile.asm 01-29-1988 Allows more than 20 files open at once in MS-C mfile.c 07-18-1991 Allows more than 20 files open at once in MS-C mgdos212.zip 11-09-1998 MGUI: GUI lib & designer for DOS/Win/Unix millisec.zip 11-30-1991 MSC/asm src for millisecond resolution timing miracle.zip 12-05-1996 Miracle C Compiler v1.7 mixfft04.zip 03-15-1998 Arbitrary-N FFT, C-source and benchmark mkutil22.zip 09-30-1995 SciTech Makefile Utilities mot2intl.c 06-09-1989 Convert Motorola S-record hex to Intel hex ms-prof.zip 09-11-1989 Execution profiling for Microsoft C / Quick C msc.c 08-15-1988 Program to pass arguments from a file to CL mschrt3.zip 07-23-1990 High resolution timer toolbox for MSC 5.1 msec_12.zip 12-10-1991 High-definition millisec timer v1.2 (C,ASM) mv.c 09-08-1986 UNIX-like, moves and renames files mv.doc 09-11-1986 Documentation for MV.C mwcon10.zip 09-28-1997 MwCONIO:Metaware/PharLap console I/O lib w/src ndmake45.zip 12-11-1987 Unix-like MAKE for DOS C programmers v4.5 netclb35.zip 03-20-1996 Novell Netware C API library - version 3.5 njsdk30.zip 02-15-1994 NJSDK: Chinese C lib. software development kit odoors60.zip 06-28-1996 C library for creating professional BBS doors oxcc1434.zip 09-07-1996 OXCC v1.434: Interpreting C compiler pc_8250.zip 02-06-1991 Serial port rtns. & VT100 emul. (C src only) pcc12c.zip 06-20-1989 Personal C compiler. Fully functional, C WARE pcl4c61.zip 12-31-1997 Personal Communications Library for C/C++ pcpilot.zip 01-13-1990 C programmer's TSR utility, with source pcsound.zip 05-20-1991 Plays many types of digitized sound files pctime14.zip 03-29-1998 Millisecond Resolution Timing Lib for DJGPP v2 pcw_c.zip 12-28-1991 PC Windows: C menu/window library w/full src pmpro22.zip 09-30-1995 Protected mode DOS extender API pmw132.zip 12-29-1996 DOS/4GW replacement for WATCOM C/C++ ppc.zip 09-17-1988 'Pretty Printer' for 'C' language sources ppl4c10.zip 05-03-1995 Protocol library for C/C++ ppl4c11.zip 04-10-1996 Protocol library for C/C++ prf.zip 11-24-1988 Profiler for Microsoft 'C' programs profil.zip 09-04-1989 C language EXE program profiler (source only) ptrtut01.zip 06-28-1996 Text tutorial on C pointers (ASCII) qlib210.zip 02-03-1998 QLIB v2.10 (PMODE/W SDK): C Lib replacement qlib211b.zip 07-04-1998 QLIB: PMODE-32 SDK. Freeware qsort.c 08-06-1985 Quick Sort in C quikc21.zip 07-04-1989 Quick screen utilities v2.1 for Turbo C & MS C r250.zip 10-13-1992 Portable C src: Pseudo-random number generator random_c.zip 05-27-1990 C lang random number generator,one of the best readin11.zip 01-12-1997 Convert any file to variable in a header file reboot.c 02-17-1990 How to do a warm or cold boot in 'C' language recio215.zip 10-29-1996 C library reads/writes files as records/fields redirect.c 04-27-1989 Feed line to shell w/stdin/stdout/stderr redir reslb201.zip 10-31-1987 Function library for Turbo-C to make TSRs rootpath.c 07-26-1986 Convt pathname arg to root-based connical form scale.cq 09-25-1985 Calc scaling parms for plotting, axes w/labels scsidrvr.zip 02-09-1989 'C' source for SCSI disk drivers sgvlib10.zip 09-05-1995 C library supporting for EGA/VGA text/graphics shar.c 07-07-1985 Concatenate text files like Unix 'shar' shar.doc 07-07-1985 Part of SHAR.C simc100.zip 06-03-1996 C/C++ function library for discrete simulation sine.c 06-01-1986 Sine functions in 'C' sldc5141.zip 07-14-1998 SLDC51 v4.1: C compiler for 8051 sleep.zip 12-06-1987 Millisecond-resolution delay function for 'C' smake155.zip 06-14-1993 Make utility for most compilers/linkers smooth11.zip 06-09-1991 'Lowness' and 'split linear' data smoothers snip9707.zip 07-09-1997 ~2.4 Mb of free C source/info, 30% PC specific snpd9707.zip 07-09-1997 Updates snip9611.zip to snip9707.zip (cf.) speaker.c 09-14-1983 'C' language routines to output sound to spkr spline29.zip 11-10-1992 Interpolate using splines under tension spwno413.zip 12-11-1992 Disk/EMS/EXT/INT15-swapping spawn() replacemnt srdemo10.zip 06-14-1995 C lib sorts filenames containing digits. DEMO steph1d0.zip 06-04-1995 C libraries for DOS text mode user interface stgdk321.zip 11-15-1997 Stellar Game Development Kit v3.2 for DOS, 1/2 stgdk322.zip 11-15-1997 Stellar Game Development Kit v3.2 for DOS, 2/2 swap300.zip 10-03-1990 C routines allow swap of app to disk, XMS, EMS system.zip 05-22-1992 C src for system() w/redirection & exit status t2c.zip 12-01-1987 Microsoft's Turbo Pascal to C translator tabx.c 02-23-1990 Filter that expands TABs to SPACEs tags.c 07-12-1986 TAGS file system for C and Epsilon tcio.zip 04-19-1995 Input/output functions for C and C++ tdat11.zip 04-22-1995 Date and Time functions for C and C++ teach-c.zip 04-06-1986 VG C tutor, great display format, w/ quizzes teglc.zip 06-28-1990 Graphical windowing toolkit demo (TC/MSC) testdir.zip 01-10-1989 Directory checkout (optional) tgasave.zip 10-29-1993 C source to save Truecolor Targa (TGA) images thread.zip 11-13-1986 C Reference guide timestmp.c 01-21-1986 Time & date routines for C86 and Lattice-C timestmp.h 01-21-1986 Header file for TIMESTMP.C tools4c.zip 08-15-1987 Shareware windowing package for C programmers tran10.zip 11-09-1995 Random Number Generators for C and C++ tsd060.zip 11-10-1995 Finds given C-function in a set of C-files tsr-asm.zip 08-05-1988 C-callable assembler routines to go TSR tsrc.zip 04-05-1988 TSRs in C, source code from Computer Language txms.zip 04-20-1995 C Functions for Extended Memory Access Via XMS u16pc.zip 12-07-1988 'C' language source for 'uncompress' for PC undoc-cl.swi 07-09-1987 Undocumented C compiler switches (MS-C 4.0) units.zip 11-02-1987 Powerful unit conversion program unixclib.asm 10-14-1985 Unix/C functions in MASM for DeSmet C update.c 08-26-1989 Copy new/altered files, with confirmation uw210.zip 02-10-1992 UltraWin version 2.10 windowing C library uwdemos.zip 12-31-1992 Sample programs, etc., with UltraWin C lib uwfonted.zip 10-11-1991 Font Editor/samples for UltraWin C library uwshadow.zip 03-04-1992 How to: Shadowed windows with UltraWin C lib vlib_10.zip 04-15-1997 Watcom C, SVGA/VESA2.0 gfx programming library vm10_arh.zip 03-25-1996 VGA/SVGA graphics mode mouse cursors library vmouse22.zip 03-19-1997 VGA/SVGA Mouse cursors using VESA/VBE2.x weekday.c 05-10-1989 Computes weekday for date w/Zeller Congruence wfl102.zip 11-28-1998 Windows Function Library v1.02: LFN in DOS wgt45.zip 07-13-1996 WordUp Graphics Toolkit for Borland/Turbo C wgt51_r2.zip 08-14-1996 Watcom C/C++ graphics programming library wildf113.zip 05-06-1991 Unix sh-style regex parser (wild cards), C src wr_prot.c 02-14-1990 Check to see if a drive is write protected xmmapi.zip 01-12-1997 Extended memory access functions w/ source xmsif15.zip 05-15-1993 XMS interface for Borland/Turbo/MS C[++] xmslb17.zip 09-01-1991 XMS library for Turbo/Borland C/C++, w/source xrf.zip 02-05-1985 C crossref lister w/Computer Innovations C src zcc096.zip 11-04-1996 Small C compiler, assembler and linker for DOS zglob10.zip 09-20-1992 *argv[] wildcard file expansion, Zortech C ztimer23.zip 06-16-1996 Microsecond accuracy timer for C, C++, ASM