182 lines
2.9 KiB
PHP
182 lines
2.9 KiB
PHP
|
ifdef WOW
|
||
|
|
DPMICALL MACRO callno
|
||
|
|
mov ax, callno
|
||
|
|
call DPMIProc
|
||
|
|
ENDM
|
||
|
|
else
|
||
|
|
DPMICALL MACRO func
|
||
|
|
mov ax, func
|
||
|
|
int 31h
|
||
|
|
ENDM
|
||
|
|
endif; WOW
|
||
|
|
|
||
|
|
|
||
|
|
RING equ 3 ; RING 1 we be
|
||
|
|
|
||
|
|
SEL_LDT equ 4
|
||
|
|
SEG_RING equ (RING+SEL_LDT)
|
||
|
|
SEG_RING_MASK equ 7
|
||
|
|
|
||
|
|
IS_SELECTOR equ 1 ; Selectors are odd, handles even
|
||
|
|
|
||
|
|
; Bits in dsc_access
|
||
|
|
DSC_PRESENT equ 80h
|
||
|
|
DSC_CODEDATA equ 10h ; Code or data descriptor
|
||
|
|
DSC_RING equ (RING SHL 5)
|
||
|
|
DSC_CODE equ (1Bh+DSC_RING) ; Code, readable, accessed
|
||
|
|
DSC_CODE_BIT equ 08h ; Identifies code
|
||
|
|
DSC_RW_BIT equ 02h ; Code readable, data writable bit
|
||
|
|
DSC_DATA equ (13h+DSC_RING) ; Data, writable, accessed
|
||
|
|
DSC_ACCESSED equ 01h ; Segment was accessed
|
||
|
|
|
||
|
|
DSC_USED equ 0Fh ; Access rights to mark descriptor used
|
||
|
|
|
||
|
|
; Bits in dsc_hlimit
|
||
|
|
DSC_GRANULARITY equ 80h ; Page granularity segment
|
||
|
|
DSC_DEFAULT equ 40h ; Default word size
|
||
|
|
DSC_DISCARDABLE equ 10h ; Available bit in descriptor
|
||
|
|
; (using access as a word)
|
||
|
|
|
||
|
|
GDT_FREEDSC equ -1
|
||
|
|
GDT_NPDSC equ 07FFFh
|
||
|
|
|
||
|
|
if PMODE
|
||
|
|
if PMODE32
|
||
|
|
GA_ALIGN_BYTES = (((GA_ALIGN+1) SHL 4) - 1)
|
||
|
|
GA_MASK_BYTES = (NOT GA_ALIGN_BYTES)
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
DscPtr struc ;Descriptor
|
||
|
|
dsc_limit dw ? ;Descriptor max length
|
||
|
|
dsc_lbase dw ? ;Descriptor base bits 15-0
|
||
|
|
dsc_mbase db ? ;Descriptor base bits 23-16
|
||
|
|
dsc_access db ? ;Descriptor access byte
|
||
|
|
dsc_hlimit db ? ;High limit, granularity and 2 custom bits
|
||
|
|
dsc_hbase db ? ;Descriptor base bits 31-24
|
||
|
|
DscPtr ends
|
||
|
|
|
||
|
|
|
||
|
|
DSC_LEN equ (size DscPtr)
|
||
|
|
.ERRNZ DSC_LEN-8 ; Paranoia
|
||
|
|
|
||
|
|
dsc386 equ word ptr dsc_hlimit
|
||
|
|
dsc_owner equ word ptr dsc_limit
|
||
|
|
|
||
|
|
if PMODE
|
||
|
|
if PMODE32
|
||
|
|
GENTER32 MACRO
|
||
|
|
|
||
|
|
push esi
|
||
|
|
push edi
|
||
|
|
call genter
|
||
|
|
mov gs, di
|
||
|
|
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
|
||
|
|
GLEAVE32 MACRO
|
||
|
|
|
||
|
|
mov es, di ; Zero ES for now
|
||
|
|
mov fs, di ; And FS
|
||
|
|
call gleave
|
||
|
|
pop edi
|
||
|
|
pop esi
|
||
|
|
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
MIN_FREE_ARENAS equ 30h ; Minimum number of free arenas desired
|
||
|
|
ARENA_INCR_BYTES equ 8192 ; Space for more arenas
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
if PMODE
|
||
|
|
ife RING-3
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change selector or handle to a handle
|
||
|
|
; Handles are RING 2
|
||
|
|
; Selectors are RING 3
|
||
|
|
;
|
||
|
|
Sel_To_Handle MACRO xsel
|
||
|
|
and xsel, NOT 1
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change handle or selector to a selector
|
||
|
|
;
|
||
|
|
Handle_To_Sel MACRO xsel
|
||
|
|
or xsel, 1
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change known selector into corresponding handle
|
||
|
|
;
|
||
|
|
StoH MACRO sel
|
||
|
|
dec sel
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change known handle into corresponding selector
|
||
|
|
;
|
||
|
|
HtoS MACRO h
|
||
|
|
inc h
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Given a segment limit, calculate the
|
||
|
|
; number of selectors in the array
|
||
|
|
;
|
||
|
|
Limit_To_Selectors MACRO reg
|
||
|
|
shr reg, 16 ; Now divide by 64k to get # of selectors - 1
|
||
|
|
inc reg
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
endif
|
||
|
|
|
||
|
|
ife RING-1
|
||
|
|
;
|
||
|
|
; Change selector or handle to a handle
|
||
|
|
; Handles are RING 2
|
||
|
|
; Selectors are RING 1
|
||
|
|
;
|
||
|
|
Sel_To_Handle MACRO xsel
|
||
|
|
test xsel, 1
|
||
|
|
jz short @F
|
||
|
|
inc xsel
|
||
|
|
@@:
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change handle or selector to a selector
|
||
|
|
;
|
||
|
|
Handle_To_Sel MACRO xsel
|
||
|
|
test xsel, 1
|
||
|
|
jnz short @F
|
||
|
|
dec xsel
|
||
|
|
@@:
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change known selector into corresponding handle
|
||
|
|
;
|
||
|
|
StoH MACRO sel
|
||
|
|
inc sel
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
;
|
||
|
|
; Change known handle into corresponding selector
|
||
|
|
;
|
||
|
|
HtoS MACRO h
|
||
|
|
dec h
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
endif
|
||
|
|
|
||
|
|
|
||
|
|
IsFixed MACRO xh
|
||
|
|
test xh, 1
|
||
|
|
ENDM
|
||
|
|
|
||
|
|
endif ; PMODE
|