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kernel
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rearrange a little so saveDS/saveBX match MS locations (still dummy variables) 

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/branches/UNSTABLE@1107 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis 2005-01-31 06:03:16 +00:00
parent 65d87b42c4
commit f89b8aa8e6
1 changed files with 16 additions and 13 deletions
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29
kernel/kernel.asm
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@ -291,7 +291,7 @@ _CDSp dd 0 ; 0016 Current Directory Structure
_FCBp dd 0 ; 001a FCB table pointer
global _nprotfcb
_nprotfcb dw 0 ; 001e number of protected fcbs
; unused for DOS 5+, see winPatchTable
; unused for DOS 5+
global _nblkdev
_nblkdev db 0 ; 0020 number of block devices
; should match # of DPBs
@ -394,22 +394,20 @@ _winPatchTable: ; returns offsets to various internal variables
_os_setver_major db 0
_os_setver_minor db 0
%IFDEF WIN31SUPPORT
dw dummy ; where DS stored during int21h dispatch
dw dummy ; where BX stored during int21h dispatch
dw _InDOS ; offset of InDOS flag
dw save_DS ; where DS stored during int21h dispatch
dw save_BX ; where BX stored during int21h dispatch
dw _InDOS ; offset of InDOS flag
dw _MachineId ; offset to variable containing MachineID
dw _nprotfcb ; offset of to arrary of offsets to patch
dw patch_bytes ; offset of to array of offsets to patch
; NOTE: this points to a null terminated
; array of offsets of critical section bytes
; to patch, for now we just point this to
; an empty table, so to save space we are
; reusing _nprotfcb as it is unused and
; can ?safely? be assumed to stay 0
; an empty table, purposely not _CritPatch
; ie we just point to a 0 word to mark end
; FIXME is uppermem_root correct? or do what should we use?
dw _uppermem_root ; seg of last arena header in conv memory
dummy dw 0 ;
;patch_bytes dw 0 ; mark end of array of offsets of critical section bytes to patch
; this matches MS DOS's location, but
; do we have the same meaning?
patch_bytes dw 0 ; mark end of array of offsets of critical section bytes to patch
%ENDIF ; WIN31SUPPORT
;; The first 5 sft entries appear to have to be at DS:00cc
@ -626,8 +624,13 @@ _current_sft_idx dw 0 ;28A - SFT index for next open
global _current_filepos
_current_filepos times 2 dw 0 ;2AE - current offset in file
; Pad to 05f0h
times (2d0h - ($ - _internal_data)) db 0
; Pad to 05eah
times (2cah - ($ - _internal_data)) db 0
;global _save_BX
;global _save_DS
save_BX dw 0 ;2CA - unused by FreeDOS, for Win3.x
save_DS dw 0 ; compatibility, match MS's positions
dw 0
global _prev_user_r
global prev_int21regs_off
global prev_int21regs_seg