PizziOS

One-user, segmented memory OS, written in pure x86 Assembly but may get some C, memory protection via segmentation, FAT-16/32. Main goals: small, fast.

PizziOS - Project Status

PizziOS - Project Status [ Return to PizziOS ]. Current Version: 0.03.0002 29 Aug 00 We have disk access. Well... temporary anyway. ...

What's PizziOS?

What's PizziOS? [ Return to PizziOS ]. PizziOS is a small 386+ OS designed principally for speed. It is written in 100% assembly, although software and ...

386 Protected Mode Programmer's Reference Sheet - Compiled ...

386 Protected Mode Programmer's Reference Sheet - Compiled & Edited by Ed Pizzi All tables and most info From INTEL 80386 PROGRAMMER'S REFERENCE MANUAL 1986 ...

Video.inc: ; A 32-bit Console-Mode Video Driver ; Copyright 1999 ...

; Video.inc: ; A 32-bit Console-Mode Video Driver ; Copyright 1999, Ed Pizzi ; ; To do: Make all of this accessible through interrupts. ; Either rewrite ...

ATA Hard Disk Driver for PizziOS ; Started 17 Sep 1999 ; Name ...

; ATA Hard Disk Driver for PizziOS ; Started 17 Sep 1999 ; Name changed hd.inc -> ata.inc 24 Aug 2000 ; Ata_cmd: ; [esi] -> hd_dsc ; cl = Sector Count ...

OS_Data.inc commandtable dd (offset command_dir), (offset ...

; OS_Data.inc commandtable dd (offset command_dir), (offset prompt_tmp_dir) dd (offset command_root), (offset prompt_root) dd (offset command_cd), ...

PizziOS Source - Video.inc

Video.inc [ Return to Browse Source Page ]. ; Video.inc: ; A 32-bit Console-Mode Video Driver ; Copyright 1999, Ed Pizzi ; ; To do: Make all of this ...

PizziOS Source - Fat.inc

Fat.inc [ Return to Browse Source Page ]. ; FAT16 Procedures for PizziOS ; Started 26 Aug 2000 ; fat16_arrangename_dots: ; lea edi,[edi+1] ; mov al,[edi] ...

FAT16 Procedures for PizziOS ; Started 26 Aug 2000 ...

; FAT16 Procedures for PizziOS ; Started 26 Aug 2000 ; fat16_arrangename_dots: ; lea edi,[edi+1] ; mov al,[edi] ; mov cl,1 ; mov ch,10 ; cmp al,'. ...