Port of Apple printf to MS-DOS/FreeDOS

by Burkhard Meissner


It can be compiled under 16bit gcc as follows: 
----------------------------------------------
gcc "-mcmodel=medium" -O4 -fexpensive-optimizations -I. -D__DJGPP__ -c *.c

gcc "-mcmodel=medium" -o printf.exe   *.o

upx --best --ultra-brute --8086 printf.exe



It can be compiled under 32bit gcc (djgpp) as follows:
------------------------------------------------------
i586-msdosdjgpp-gcc -I./ -O4 -fexpensive-optimizations -funroll-loops -finline-functions printf.c -o printf
i586-msdosdjgpp-strip -I./ -O4 -fexpensive-optimizations -funroll-loops -finline-functions printf.c -o printf
rm printf
optionally:
upx --best --ultra-brute printf.exe


Usage:
------
Usually, under Unix, the printf command takes format specifiers
as its argument whcih consist of % and a letter. For example.
"Dieses ist %i Beispiel%s \n" 1 string
under Unix yields
"Dieses ist 1 Beispielstring"<LF>

Under DOS, % is the specifier for environment variables and therefore 
is caught by the shell. To use the program under DOS, we have to use 
double %% as in: 
"Dieses ist %%i Beispiel%%s \n" 1 string
to obtain
"Dieses ist 1 Beispielstring"<CR><LF>

The source code comes from the Apple BSD Obase resources and is 
modified for DOS. The mssing functions have been added from
Gnulib and Apple obase.


Burkhard Meissner