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June 4,2001:
Started project...
June 19,2001:
After much reading
decided what the system would be..
See Amateur
OS design for more on the design...
June 20,2001:
Started working
with a little code...I was using
OS For Dummies bootloader but didn't like the way it worked...
Decided to write
my owm bootloader and used the code on
LasVegas's Domain: Bootstrap Tutorial to do it..
Booted the standard
"Hello World" kernel....
June 22,2001:
Put in code to test
for a 486 or higher...
Started on the a20
code...
June 23,2001:
Put in code to check
for VGA card....
Worked on understanding
how to setup interrupts...
June 24,2001:
Finished the a20
setup....
Wrote routine to
test a20....
Understand how to
do interrupts now....
June 25,2001:
Wrote this web page
and updated homepage...
June 26,2001:
Wrote HEX.
A simple binary to hex converter..
June 29,2001:
WroteFDWrite.A
program to write a file to any sector on a floppy
Can be used to install a boot loader or to play with the FAT.
June 30,2001:
Wrote Sector.A
program to read a sector from anywhere on the floppy
and save it to a file.
July 2,2001:
Wrote The
Skinny on FAT A page on the FAT sector of
a floppy.
July 3,2001:
Wrote LS.com
A simple directory lister. Just to see what I learned.
July 4,2001:
Updated website.Wrote
Amateur
OS sector layout .
Completed
first stage loader.
July 7,2001:
Went back
to standard boot loader. Old boot worked on the floppy but
was hard to
setup and won't work on a hard drive.
Updated the
web page to reflect the change.
July 8,2001:
Wrote a 32
bit move inline asm to move a dword from SI to FS:EDI.
FS is set
to the video memory.( Sphinx C-- only allows a DI instead of EDI. )
July 9,2001:
Uploaded new
pages on the memory, kernel and interrupts.
Wrote an example
of interrupt chaining in Sphinx C--..Timer.C--
July 18,2001:
After many
hours of work, got kernel to run a BIN file. Thanks goes to
Kenneth Garin
for allowing me to look through his code.
July 19,2001:
Ported a demo,
Unvwater, to run on Amateur OS. Doesn't do a lot but
shows the
kernel works.
July 20,2001:
Fixed download
problems, sorry about that...Cleaned up code for package.
Created package
kernel_0.0.1a and updated web pages.
July 22,2001:
Fixed problem
with com file load. Also writes command line to 0x80 offset.
July 28,2001:
Wrote new
file routine to load file into memory using interrupt.
July 30,2001:
Got file routines
to run correct. Intergrated new load into old loads for more
compact kernel.
Finished read.com for reading text files. Made up new package
and updated
web pages.
August 2,2001:
Wrote Term.
A simple terminal program for Amateur OS.
September 2,2001:
Not
much for the month of August..Took a little break from the computer....
Uploaded
term and game....Not much but cute to look at....