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mark unused space in kernel for unused win compatibility structs

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git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1488 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis 2009-07-13 03:19:32 +00:00
parent 8f9448f313
commit 82d77a19e1
1 changed files with 49 additions and 2 deletions
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51
kernel/kernel.asm
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@ -366,7 +366,11 @@ _min_pars dw 0 ; 0064 minimum paragraphs of memory
_uppermem_root dw 0ffffh ; 0066 dmd_upper_root (usually 9fff)
_last_para dw 0 ; 0068 para of last mem search
SysVarEnd:
;; FreeDOS specific entries
;; all variables below this point are subject to relocation.
;; programs should not rely on any values below this point!!!
global _os_setver_minor
_os_setver_minor db 0
global _os_setver_major
@ -379,10 +383,45 @@ _os_major db 5
_rev_number db 0
global _version_flags
_version_flags db 0
global os_release
extern _os_release
os_release dw _os_release
%IFDEF WIN31SUPPORT
global _winStartupInfo, _winInstanced
_winInstanced dw 0 ; set to 1 on WinInit broadcast, 0 on WinExit broadcast
_winStartupInfo:
dw 0 ; structure version (same as windows version)
dd 0 ; next startup info structure, 0:0h marks end
dd 0 ; far pointer to name virtual device file or 0:0h
dd 0 ; far pointer, reference data for virtual device driver
dw instance_table,seg instance_table ; array of instance data
instance_table: ; should include stacks, Win may auto determine SDA region
; we simply include whole DOS data segment
dw 0, seg _DATASTART ; [SEG:OFF] address of region's base
dw markEndInstanceData wrt seg _DATASTART ; size in bytes
dd 0 ; 0 marks end of table
patch_bytes: ; mark end of array of offsets of critical section bytes to patch
dw 0 ; and 0 length for end of instance_table entry
global _winPatchTable
_winPatchTable: ; returns offsets to various internal variables
dw 0x0006 ; DOS version, major# in low byte, eg. 6.00
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 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, purposely not _CritPatch
; ie we just point to a 0 word to mark end
dw _uppermem_root ; seg of last arena header in conv memory
; this matches MS DOS's location, but
; do we have the same meaning?
%ENDIF ; WIN31SUPPORT
;; The first 5 sft entries appear to have to be at DS:00cc
times (0cch - ($ - DATASTART)) db 0
global _firstsftt
@ -597,8 +636,13 @@ _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
@ -711,6 +755,9 @@ segment DYN_DATA
global _Dyn
_Dyn:
DynAllocated dw 0
markEndInstanceData: ; mark end of DOS data seg we say needs instancing
segment ID_B
global __INIT_DATA_START