258 lines
4.8 KiB
NASM
258 lines
4.8 KiB
NASM
|
.xlist
|
||
|
|
include cmacros.inc
|
||
|
|
;
|
||
|
|
;~~vvr 091989
|
||
|
|
;
|
||
|
|
SYS=1
|
||
|
|
include equate.inc
|
||
|
|
;~~
|
||
|
|
include vecsys.inc
|
||
|
|
include int31.inc
|
||
|
|
.list
|
||
|
|
|
||
|
|
page
|
||
|
|
;======= EnableVectra ========================================================
|
||
|
|
;
|
||
|
|
; If we have a Vectra A, A+, or A++ with EX-BIOS, save the current HPEntry
|
||
|
|
; vector, HPHIL state and set HPentry=6Fh, Turn ON HPHIL.
|
||
|
|
;
|
||
|
|
; Entry:
|
||
|
|
; DS: Code segment
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; Exit:
|
||
|
|
; CurHPentry, CurHILState
|
||
|
|
;
|
||
|
|
; Regs:
|
||
|
|
; AX,
|
||
|
|
;
|
||
|
|
;=============================================================================
|
||
|
|
|
||
|
|
assumes cs, code
|
||
|
|
sBegin DATA
|
||
|
|
|
||
|
|
fFirst dw 0 ; =0: First time in
|
||
|
|
;
|
||
|
|
;~~vvr 091989
|
||
|
|
;
|
||
|
|
fVectra db 0 ; bit0 =1: We have a Vectra with EX-BIOS
|
||
|
|
CurHPEntry db 0 ; Current HPEntry vector (usually 6Fh)
|
||
|
|
CurHILState db 0 ; bit6 =1: HIL is OFF
|
||
|
|
db ? ; Word aligned
|
||
|
|
|
||
|
|
RealMode_Word_Struc Real_Mode_Call_Struc <>
|
||
|
|
|
||
|
|
externA WinFlags
|
||
|
|
externA __ROMBIOS
|
||
|
|
WF_PMODE equ 01h
|
||
|
|
sEnd
|
||
|
|
|
||
|
|
sBegin CODE
|
||
|
|
assumes cs, CODE
|
||
|
|
externW MyCSDS
|
||
|
|
|
||
|
|
cProc EnableVectra, <PUBLIC,NEAR>
|
||
|
|
|
||
|
|
cBegin
|
||
|
|
push CX
|
||
|
|
push BX
|
||
|
|
push BP
|
||
|
|
push DS
|
||
|
|
|
||
|
|
mov ds, MyCSDS
|
||
|
|
assumes ds,DATA
|
||
|
|
|
||
|
|
test [fVectra], 10000000B ; Any previous Vectra check?
|
||
|
|
jne EnVNext ; Yes, proceed
|
||
|
|
;
|
||
|
|
; Check if the PC is a Vectra. If Yes, then call HPSystem to get the
|
||
|
|
; current size of the HP state
|
||
|
|
|
||
|
|
or [fVectra], 80H ; Mark as gone through the identification
|
||
|
|
; ..process
|
||
|
|
push ES ; Save it
|
||
|
|
mov AX, __ROMBIOS
|
||
|
|
mov ES, AX ; ES: Segment of ID code
|
||
|
|
cmp Word Ptr ES:[ID_OFFSET], 'PH'
|
||
|
|
pop ES ; Restore entry ES
|
||
|
|
jz EnVCont1
|
||
|
|
jmp EnVRet ; Not a Vectra, so no extra HP processing
|
||
|
|
EnVCont1:
|
||
|
|
;
|
||
|
|
; Check if EX-BIOS is present
|
||
|
|
;
|
||
|
|
|
||
|
|
mov AX, F16_INQUIRE
|
||
|
|
mov BX, AX
|
||
|
|
int INT_KBD
|
||
|
|
cmp BX, 'HP' ; EX-BIOS present?
|
||
|
|
je EnVCont
|
||
|
|
jmp EnVRet ; No, finish
|
||
|
|
EnVCont:
|
||
|
|
or [fVectra], 1 ; Yes, flag we have a Vectra
|
||
|
|
|
||
|
|
EnvNext:
|
||
|
|
test [fVectra], 1
|
||
|
|
jnz EnVContinue
|
||
|
|
jmp EnVRet ; No special processing if not a vectra
|
||
|
|
EnVContinue:
|
||
|
|
;
|
||
|
|
; We need to save the EX-BIOS vector and the HIL state only once since it is
|
||
|
|
; assumed that these parameters will not be changed while running under
|
||
|
|
; Windows, especially by an old app.
|
||
|
|
;
|
||
|
|
xor BH, BH
|
||
|
|
cmp [CurHPEntry], BH ; first time?
|
||
|
|
jnz EnVSet ; no, don't have to save it again
|
||
|
|
;
|
||
|
|
; Save current HP entry and set it to be 6Fh
|
||
|
|
;
|
||
|
|
mov AX, F16_GET_INT_NUMBER
|
||
|
|
int INT_KBD
|
||
|
|
inc BH ; Flag as the first time
|
||
|
|
mov [CurHPEntry], HPENTRY ; Assume we have HPentry= 6Fh
|
||
|
|
cmp AH, RS_UNSUPPORTED
|
||
|
|
je EnVSet ; We have a Vectra A, A+ if unsupported
|
||
|
|
mov [CurHPEntry], AH ; Save it if valid
|
||
|
|
;
|
||
|
|
EnVSet:
|
||
|
|
mov BL, HPENTRY
|
||
|
|
mov AX, F16_SET_INT_NUMBER
|
||
|
|
int INT_KBD ; BH preserved
|
||
|
|
;
|
||
|
|
; Save current HPHIL state and set it ON
|
||
|
|
;
|
||
|
|
mov cx, WinFlags
|
||
|
|
and cx, WF_PMODE
|
||
|
|
cmp cx, WF_PMODE ; prot-mode only
|
||
|
|
jne sys_real_mode
|
||
|
|
|
||
|
|
sys_prot_mode:
|
||
|
|
or BH, BH ; BH= 0: Not the first time
|
||
|
|
jz EnVSetHIL_PM ; so don't save state
|
||
|
|
HPSysCall V_HPHIL, F_SYSTEM, SF_REPORT_STATE
|
||
|
|
mov [CurHILState], BH
|
||
|
|
;
|
||
|
|
; Bit 14 of BX (Status Word) = 1: HPHIL OFF
|
||
|
|
; 0: ON
|
||
|
|
;
|
||
|
|
EnVSetHIL_PM:
|
||
|
|
HPSysCall V_HPHIL, F_IO_CONTROL, SF_HIL_ON
|
||
|
|
jmp EnVret
|
||
|
|
|
||
|
|
sys_real_mode:
|
||
|
|
or BH, BH ; BH= 0: Not the first time
|
||
|
|
jz EnVSetHIL ; so don't save state
|
||
|
|
mov AH, F_SYSTEM
|
||
|
|
mov AL, SF_REPORT_STATE
|
||
|
|
mov BP, V_HPHIL
|
||
|
|
int HPENTRY ; int 6f to get the state
|
||
|
|
;
|
||
|
|
; Bit 14 of BX (Status Word) = 1: HPHIL OFF
|
||
|
|
; 0: ON
|
||
|
|
;
|
||
|
|
mov [CurHILState], BH
|
||
|
|
;
|
||
|
|
; Turn HIL ON
|
||
|
|
;
|
||
|
|
EnVSetHIL:
|
||
|
|
mov AH, F_IO_CONTROL
|
||
|
|
mov AL, SF_HIL_ON
|
||
|
|
mov BP, V_HPHIL
|
||
|
|
int HPENTRY
|
||
|
|
;
|
||
|
|
EnVret:
|
||
|
|
pop DS
|
||
|
|
pop BP
|
||
|
|
pop BX
|
||
|
|
pop CX
|
||
|
|
;
|
||
|
|
cEnd EnableVectra
|
||
|
|
|
||
|
|
|
||
|
|
page
|
||
|
|
;======= DisableVectra =======================================================
|
||
|
|
;
|
||
|
|
; Restore the Vectra environment according to CurHPEntry and CurHILState
|
||
|
|
; Assume that HPENTRY is always 6Fh
|
||
|
|
;
|
||
|
|
; Entry:
|
||
|
|
; DS: Code Segment
|
||
|
|
;
|
||
|
|
; Exit:
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; Regs:
|
||
|
|
; AX,
|
||
|
|
;
|
||
|
|
;=============================================================================
|
||
|
|
|
||
|
|
cProc DisableVectra, <PUBLIC,NEAR>
|
||
|
|
|
||
|
|
cBegin
|
||
|
|
push BX
|
||
|
|
push BP
|
||
|
|
push DS
|
||
|
|
|
||
|
|
; make it run in both
|
||
|
|
mov ds,MyCSDS ; real and prot modes
|
||
|
|
assumes ds,DATA
|
||
|
|
|
||
|
|
test [fVectra], 1 ; are we on a Vectra ?
|
||
|
|
jnz DisVCont
|
||
|
|
jmp DisVRet ; no
|
||
|
|
DisVCont:
|
||
|
|
|
||
|
|
; check if we are prot or real mode
|
||
|
|
|
||
|
|
mov bx, WinFlags ; get mode flag
|
||
|
|
and bx, WF_PMODE
|
||
|
|
cmp bx, WF_PMODE ; is it prot_mode ?
|
||
|
|
jne sys_dis_real_mode ; we are in real mode
|
||
|
|
|
||
|
|
sys_dis_prot_mode:
|
||
|
|
|
||
|
|
test [CurHILState], B_HIL_STATE
|
||
|
|
je DisVHIL_PM
|
||
|
|
HPSysCall V_HPHIL, F_IO_CONTROL, SF_HIL_OFF
|
||
|
|
jmp DisRestHIL
|
||
|
|
DisVHIL_PM:
|
||
|
|
HPSysCall V_HPHIL, F_IO_CONTROL, SF_HIL_ON
|
||
|
|
jmp DisRestHIL
|
||
|
|
|
||
|
|
sys_dis_real_mode:
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; Restore the HIL state according to CurHILState
|
||
|
|
;
|
||
|
|
mov AH, F_IO_CONTROL
|
||
|
|
mov BP, V_HPHIL
|
||
|
|
mov AL, SF_HIL_ON ; Assume HIL is ON
|
||
|
|
test [CurHILState], B_HIL_STATE
|
||
|
|
je DisVHIL ; 0= correct assumption
|
||
|
|
mov AL, SF_HIL_OFF
|
||
|
|
|
||
|
|
DisVHIL:
|
||
|
|
push ds
|
||
|
|
int HPENTRY
|
||
|
|
pop ds
|
||
|
|
;
|
||
|
|
; Restore the Saved HPEntry
|
||
|
|
;
|
||
|
|
DisRestHIL:
|
||
|
|
|
||
|
|
mov AX, F16_SET_INT_NUMBER
|
||
|
|
mov BL, [CurHPEntry]
|
||
|
|
int INT_KBD
|
||
|
|
;
|
||
|
|
DisVRet:
|
||
|
|
pop DS
|
||
|
|
pop BP
|
||
|
|
pop BX
|
||
|
|
|
||
|
|
;
|
||
|
|
cEnd DisableVectra
|
||
|
|
|
||
|
|
Send code
|
||
|
|
end
|