X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fgeekos%2Fdefs.asm;h=fa151abaeff322bd4506898282bd140d5091148f;hb=c07f7f11e5d781b90f4d8876d12f3fc4e47309ad;hp=0135f31a7e8ecab2284616565296420497323d2e;hpb=3d293c0d07537b122d249e035b6c85ed54baf406;p=palacios.git diff --git a/palacios/src/geekos/defs.asm b/palacios/src/geekos/defs.asm index 0135f31..fa151ab 100644 --- a/palacios/src/geekos/defs.asm +++ b/palacios/src/geekos/defs.asm @@ -1,6 +1,6 @@ ; Definitions for use in GeekOS boot code ; Copyright (c) 2001, David H. Hovemeyer -; $Revision: 1.3 $ +; $Revision: 1.11 $ ; This is free software. You are permitted to use, ; redistribute, and modify it as specified in the file "COPYING". @@ -16,14 +16,20 @@ %ifndef DEFS_ASM %define DEFS_ASM -TOP_OF_MEM equ 0x40000000 -VM_SIZE equ 0x20000000 -START_OF_VM equ 0x0 -VM_KERNEL_TARGET equ 0x100000 +;Zheng 08/01/2008 +SYSSEG equ 0x1000 +COMMAND_LINE_SIZE equ 1024 + +SETUPSECTS equ 4 ; /* default nr of setup-sectors */ +SYSSIZE equ 0x7f00 ; /* system size: # of 16-byte clicks */ +ROOT_DEV equ 0 ; /* ROOT_DEV is now written by "build" */ +SWAP_DEV equ 0 ; /* SWAP_DEV is now written by "build" */ + +;VM_KERNEL_TARGET equ 0x100000 ; BIOS loads the boot sector at offset 0 in this segment BOOTSEG equ 0x07C0 - + ; We'll move the boot sector up to higher memory. ; Note that the "ISA hole" begins at segment 0xA000 == 640K. INITSEG equ 0x9000 @@ -40,7 +46,7 @@ KERNSEG equ 0x1000 ;; Note that this segment must not colide with where the VMM kernel ;; is initially loaded. At this point, we just place it in the last ;; 64K of RAM available before the ISA hole and hope for the best -VMSEG equ 0x9000 ; + VMSEG equ 0x8000 ; Size of PFAT boot record. ; Keep up to date with . @@ -57,7 +63,7 @@ VIDSEG equ 0xb800 ; The following information is correct for a 1.44M floppy. ; Yes, I'm hard coding this. -SECTORS_PER_TRACK equ 18 +;SECTORS_PER_TRACK equ 18 HEADS equ 2 CYLINDERS equ 80 @@ -89,7 +95,7 @@ KERNEL_DS equ 2<<3 ; kernel data segment is GDT entry 2 ; the one we construct for Main(). Keep these up to date with defs.h. ; We put them at 1MB, for no particular reason. ;; Moved to just after where the VM will go -KERN_THREAD_OBJ equ (START_OF_VM+VM_SIZE) +KERN_THREAD_OBJ equ 4096 KERN_STACK equ KERN_THREAD_OBJ + 4096 %endif