mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
669 lines
19 KiB
669 lines
19 KiB
title "Irql Processing"
|
|
;++
|
|
;
|
|
; Copyright (c) 1989 Microsoft Corporation
|
|
;
|
|
; Module Name:
|
|
;
|
|
; oliirql.asm
|
|
;
|
|
; Abstract:
|
|
;
|
|
; SystemPro IRQL
|
|
;
|
|
; This module implements the code necessary to raise and lower i386
|
|
; Irql and dispatch software interrupts with the 8259 PIC.
|
|
;
|
|
; Author:
|
|
;
|
|
; Shie-Lin Tzong (shielint) 8-Jan-1990
|
|
;
|
|
; Environment:
|
|
;
|
|
; Kernel mode only.
|
|
;
|
|
; Revision History:
|
|
;
|
|
; John Vert (jvert) 27-Nov-1991
|
|
; Moved from kernel into HAL
|
|
;
|
|
; Bruno Sartirana (o-obruno) 3-Mar-92
|
|
; Added support for the Olivetti LSX5030.
|
|
;--
|
|
|
|
.386p
|
|
.xlist
|
|
include hal386.inc
|
|
include callconv.inc
|
|
include i386\ix8259.inc
|
|
include i386\kimacro.inc
|
|
;LSX5030 start
|
|
include i386\olimp.inc
|
|
;LSX5030 end
|
|
|
|
.list
|
|
|
|
|
|
EXTRNP _KeBugCheck,1,IMPORT
|
|
|
|
extrn _HalpApcInterrupt:NEAR
|
|
extrn _HalpDispatchInterrupt:NEAR
|
|
extrn _HalpApcInterrupt2ndEntry:NEAR
|
|
extrn _HalpDispatchInterrupt2ndEntry:NEAR
|
|
; extrn _HalpSWNonPrimaryClockTick2ndEntry:NEAR
|
|
extrn _KiUnexpectedInterrupt:NEAR
|
|
extrn _HalpBusType:DWORD
|
|
|
|
;
|
|
; Initialization control words equates for the PICs
|
|
;
|
|
|
|
ICW1_ICW4_NEEDED equ 01H
|
|
ICW1_CASCADE equ 00H
|
|
ICW1_INTERVAL8 equ 00H
|
|
ICW1_LEVEL_TRIG equ 08H
|
|
ICW1_EDGE_TRIG equ 00H
|
|
ICW1_ICW equ 10H
|
|
|
|
ICW4_8086_MODE equ 001H
|
|
ICW4_NORM_EOI equ 000H
|
|
ICW4_NON_BUF_MODE equ 000H
|
|
ICW4_SPEC_FULLY_NESTED equ 010H
|
|
ICW4_NOT_SPEC_FULLY_NESTED equ 000H
|
|
|
|
OCW2_NON_SPECIFIC_EOI equ 020H
|
|
OCW2_SPECIFIC_EOI equ 060H
|
|
OCW2_SET_PRIORITY equ 0c0H
|
|
|
|
PIC_SLAVE_IRQ equ 2
|
|
PIC1_BASE equ 30H
|
|
PIC2_BASE equ 38H
|
|
|
|
;
|
|
; Interrupt flag bit maks for EFLAGS
|
|
;
|
|
|
|
EFLAGS_IF equ 200H
|
|
EFLAGS_SHIFT equ 9
|
|
|
|
;
|
|
|
|
_DATA SEGMENT DWORD PUBLIC 'DATA'
|
|
|
|
;
|
|
; PICsInitializationString - Master PIC initialization command string
|
|
;
|
|
|
|
PICsInitializationString dw PIC1_PORT0
|
|
|
|
;
|
|
; Master PIC initialization command
|
|
;
|
|
|
|
db ICW1_ICW + ICW1_EDGE_TRIG + ICW1_INTERVAL8 +\
|
|
ICW1_CASCADE + ICW1_ICW4_NEEDED
|
|
db PIC1_BASE
|
|
db 1 SHL PIC_SLAVE_IRQ
|
|
db ICW4_NOT_SPEC_FULLY_NESTED + \
|
|
ICW4_NON_BUF_MODE + \
|
|
ICW4_NORM_EOI + \
|
|
ICW4_8086_MODE
|
|
;
|
|
; Slave PIC initialization command strings
|
|
;
|
|
|
|
dw PIC2_PORT0
|
|
db ICW1_ICW + ICW1_EDGE_TRIG + ICW1_INTERVAL8 +\
|
|
ICW1_CASCADE + ICW1_ICW4_NEEDED
|
|
db PIC2_BASE
|
|
db PIC_SLAVE_IRQ
|
|
db ICW4_NOT_SPEC_FULLY_NESTED + \
|
|
ICW4_NON_BUF_MODE + \
|
|
ICW4_NORM_EOI + \
|
|
ICW4_8086_MODE
|
|
dw 0 ; end of string
|
|
|
|
PS2PICsInitializationString dw PIC1_PORT0
|
|
|
|
;
|
|
; Master PIC initialization command
|
|
;
|
|
|
|
db ICW1_ICW + ICW1_LEVEL_TRIG + ICW1_INTERVAL8 +\
|
|
ICW1_CASCADE + ICW1_ICW4_NEEDED
|
|
db PIC1_BASE
|
|
db 1 SHL PIC_SLAVE_IRQ
|
|
db ICW4_NOT_SPEC_FULLY_NESTED + \
|
|
ICW4_NON_BUF_MODE + \
|
|
ICW4_NORM_EOI + \
|
|
ICW4_8086_MODE
|
|
;
|
|
; Slave PIC initialization command strings
|
|
;
|
|
|
|
dw PIC2_PORT0
|
|
db ICW1_ICW + ICW1_LEVEL_TRIG + ICW1_INTERVAL8 +\
|
|
ICW1_CASCADE + ICW1_ICW4_NEEDED
|
|
db PIC2_BASE
|
|
db PIC_SLAVE_IRQ
|
|
db ICW4_NOT_SPEC_FULLY_NESTED + \
|
|
ICW4_NON_BUF_MODE + \
|
|
ICW4_NORM_EOI + \
|
|
ICW4_8086_MODE
|
|
dw 0 ; end of string
|
|
|
|
|
|
align 4
|
|
|
|
;LSX5030 start
|
|
|
|
public KiI8259MaskTable
|
|
KiI8259MaskTable label dword
|
|
dd 00000000000000000000000000000000B ; irql 0
|
|
dd 00000000000000000000000000000000B ; irql 1
|
|
dd 00000000000000000000000000000000B ; irql 2
|
|
dd 00000000000000000000000000000000B ; irql 3
|
|
dd 00000000000000000000000000000000B ; irql 4
|
|
dd 11111111110000000000000000000000B ; irql 5
|
|
dd 11111111111000000000000000000000B ; irql 6
|
|
dd 11111111111100000000000000000000B ; irql 7
|
|
dd 11111111111110000000000000000000B ; irql 8
|
|
dd 11111111111111000000000000000000B ; irql 9
|
|
dd 11111111111111100000000000000000B ; irql 10
|
|
dd 11111111111111110000000000000000B ; irql 11
|
|
dd 11111111111111111000000000000000B ; irql 12
|
|
dd 11111111111111111100000000000000B ; irql 13
|
|
dd 11111111111111111110000000000000B ; irql 14
|
|
dd 11111111111111111111000000000000B ; irql 15
|
|
dd 11111111111111111111100000000000B ; irql 16
|
|
dd 11111111111111111111110000000000B ; irql 17
|
|
dd 11111111111111111111111000000000B ; irql 18
|
|
dd 11111111111111111111111000000000B ; irql 19
|
|
dd 11111111111111111111111010000000B ; irql 20
|
|
dd 11111111111111111111111011000000B ; irql 21
|
|
dd 11111111111111111111111011100000B ; irql 22
|
|
dd 11111111111111111111111011110000B ; irql 23
|
|
dd 11111111111111111111111011111000B ; irql 24
|
|
dd 11111111111111111111111011111000B ; irql 25
|
|
dd 11111111111111111111111011111010B ; irql 26
|
|
dd 11111111111111111111111111111010B ; irql 27
|
|
dd 11111111111111111111111111111011B ; irql 28
|
|
dd 11111111111111111111111111111011B ; irql 29
|
|
dd 11111111111111111111111111111011B ; irql 30
|
|
dd 11111111111111111111111111111011B ; irql 31
|
|
;LSX5030 end
|
|
|
|
align 4
|
|
;
|
|
; The following tables define the addresses of software interrupt routers
|
|
;
|
|
|
|
;
|
|
; Use this table if there is NO machine state frame on stack already
|
|
;
|
|
|
|
public SWInterruptHandlerTable
|
|
SWInterruptHandlerTable label dword
|
|
dd offset FLAT:_KiUnexpectedInterrupt ; irql 0
|
|
dd offset FLAT:_HalpApcInterrupt ; irql 1
|
|
dd offset FLAT:_HalpDispatchInterrupt ; irql 2
|
|
|
|
;
|
|
; Use this table if there is a machine state frame on stack already
|
|
;
|
|
|
|
public SWInterruptHandlerTable2
|
|
SWInterruptHandlerTable2 label dword
|
|
dd offset FLAT:_KiUnexpectedInterrupt ; irql 0
|
|
dd offset FLAT:_HalpApcInterrupt2ndEntry ; irql 1
|
|
dd offset FLAT:_HalpDispatchInterrupt2ndEntry ; irql 2
|
|
|
|
;
|
|
; The following table picks up the highest pending software irq level
|
|
; from software irr
|
|
;
|
|
|
|
public SWInterruptLookUpTable
|
|
SWInterruptLookUpTable label byte
|
|
db 0 ; SWIRR=0, so highest pending SW irql= 0
|
|
db 0 ; SWIRR=1, so highest pending SW irql= 0
|
|
db 1 ; SWIRR=2, so highest pending SW irql= 1
|
|
db 1 ; SWIRR=3, so highest pending SW irql= 1
|
|
db 2 ; SWIRR=4, so highest pending SW irql= 2
|
|
db 2 ; SWIRR=5, so highest pending SW irql= 2
|
|
db 2 ; SWIRR=6, so highest pending SW irql= 2
|
|
db 2 ; SWIRR=7, so highest pending SW irql= 2
|
|
|
|
_DATA ENDS
|
|
|
|
page ,132
|
|
subttl "Raise Irql"
|
|
|
|
_TEXT SEGMENT DWORD PUBLIC 'CODE'
|
|
ASSUME DS:FLAT, ES:FLAT, SS:FLAT, FS:NOTHING, GS:NOTHING
|
|
;++
|
|
;
|
|
; KIRQL
|
|
; FASTCALL
|
|
; KfRaiseIrql (
|
|
; IN KIRQL NewIrql
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to raise IRQL to the specified value.
|
|
; Also, a mask will be used to mask off all the lower lever 8259
|
|
; interrupts.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; (cl) = NewIrql - the new irql to be raised to
|
|
;
|
|
;
|
|
; Return Value:
|
|
;
|
|
; OldIrql - the addr of a variable which old irql should be stored
|
|
;
|
|
;--
|
|
|
|
; equates for accessing arguments
|
|
; since eflags and iret addr are pushed into stack, all the arguments
|
|
; offset by 8 bytes
|
|
;
|
|
|
|
cPublicFastCall KfRaiseIrql,1
|
|
cPublicFpo 0,1
|
|
|
|
pushfd ; save caller's eflags
|
|
|
|
movzx eax, cl ; (eax) = NewIrql
|
|
mov cl, fs:PcIrql ; get current irql
|
|
|
|
if DBG
|
|
cmp cl,al ; old > new?
|
|
jbe short Kri99 ; no, we're OK
|
|
push eax ; put new irql where we can find it
|
|
push ecx ; put old irql where we can find it
|
|
mov byte ptr fs:PcIrql,0 ; avoid recursive error
|
|
stdCall _KeBugCheck,<IRQL_NOT_GREATER_OR_EQUAL>
|
|
Kri99:
|
|
endif
|
|
|
|
cmp al,DISPATCH_LEVEL ; software level?
|
|
cli ; disable interrupt
|
|
mov fs:PcIrql, al ; set the new irql
|
|
jbe kri10 ; go skip setting 8259 hardware
|
|
|
|
mov eax, KiI8259MaskTable[eax*4]; get pic masks for the new irql
|
|
or eax, fs:PcIDR ; mask irqs which are disabled
|
|
SET_8259_MASK ; set 8259 masks
|
|
|
|
kri10: popfd ; restore flags (including interrupts)
|
|
|
|
mov al, cl ; return old irql
|
|
fstRET KfRaiseIrql
|
|
|
|
fstENDP KfRaiseIrql
|
|
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; KIRQL
|
|
; KeRaiseIrqlToDpcLevel (
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to raise IRQL to DPC level.
|
|
; The APIC TPR is used to block all lower-priority HW interrupts.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; Return Value:
|
|
;
|
|
; OldIrql - the addr of a variable which old irql should be stored
|
|
;
|
|
;--
|
|
|
|
cPublicProc _KeRaiseIrqlToDpcLevel,0
|
|
|
|
mov ecx, DISPATCH_LEVEL
|
|
jmp @KfRaiseIrql
|
|
|
|
stdENDP _KeRaiseIrqlToDpcLevel
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; KIRQL
|
|
; KeRaiseIrqlToSynchLevel (
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to raise IRQL to SYNC level.
|
|
; The APIC TPR is used to block all lower-priority HW interrupts.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; Return Value:
|
|
;
|
|
; OldIrql - the addr of a variable which old irql should be stored
|
|
;
|
|
;--
|
|
|
|
cPublicProc _KeRaiseIrqlToSynchLevel,0
|
|
|
|
mov ecx, SYNCH_LEVEL
|
|
jmp @KfRaiseIrql
|
|
|
|
stdENDP _KeRaiseIrqlToSynchLevel
|
|
|
|
|
|
page ,132
|
|
subttl "Lower irql"
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; FASTCALL
|
|
; KfLowerIrql (
|
|
; IN KIRQL NewIrql
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to lower IRQL to the specified value.
|
|
; The IRQL and PIRQL will be updated accordingly. Also, this
|
|
; routine checks to see if any software interrupt should be
|
|
; generated. The following condition will cause software
|
|
; interrupt to be simulated:
|
|
; any software interrupt which has higher priority than
|
|
; current IRQL's is pending.
|
|
;
|
|
; NOTE: This routine simulates software interrupt as long as
|
|
; any pending SW interrupt level is higher than the current
|
|
; IRQL, even when interrupts are disabled.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; (cl) = NewIrql - the new irql to be set.
|
|
;
|
|
; Return Value:
|
|
;
|
|
; None.
|
|
;
|
|
;--
|
|
|
|
cPublicFastCall KfLowerIrql,1
|
|
|
|
pushfd ; save caller's eflags
|
|
movzx ecx, cl ; (ecx) = new irql value
|
|
|
|
if DBG
|
|
cmp cl,fs:PcIrql
|
|
jbe short Kli99
|
|
push ecx ; new irql for debugging
|
|
push fs:PcIrql ; old irql for debugging
|
|
mov byte ptr fs:PcIrql,HIGH_LEVEL ; avoid recursive error
|
|
stdCall _KeBugCheck,<IRQL_NOT_LESS_OR_EQUAL>
|
|
Kli99:
|
|
endif
|
|
|
|
cmp byte ptr fs:PcIrql,DISPATCH_LEVEL ; Software level?
|
|
cli
|
|
jbe kli02 ; yes, go skip setting 8259 hw
|
|
|
|
mov eax, KiI8259MaskTable[ecx*4]; get pic masks for the new irql
|
|
or eax, fs:PcIDR ; mask irqs which are disabled
|
|
SET_8259_MASK ; set 8259 masks
|
|
|
|
kli02: mov fs:PcIrql, cl ; set the new irql
|
|
mov eax, fs:PcIRR ; get SW interrupt request register
|
|
mov al, SWInterruptLookUpTable[eax] ; get the highest pending
|
|
; software interrupt level
|
|
cmp al, cl ; Is highest SW int level > irql?
|
|
ja Kli10 ; yes, go simulate interrupt
|
|
|
|
popfd ; restore flags, including ints
|
|
fstRET KfLowerIrql
|
|
|
|
; When we come to Kli10, (eax) = soft interrupt index
|
|
|
|
Kli10:
|
|
call SWInterruptHandlerTable[eax*4] ; SIMULATE INTERRUPT
|
|
; to the appropriate handler
|
|
popfd
|
|
fstRET KfLowerIrql
|
|
|
|
fstENDP KfLowerIrql
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; HalpEndSystemInterrupt
|
|
; IN KIRQL NewIrql,
|
|
; IN ULONG Vector
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to lower IRQL to the specified value.
|
|
; The IRQL and PIRQL will be updated accordingly. Also, this
|
|
; routine checks to see if any software interrupt should be
|
|
; generated. The following condition will cause software
|
|
; interrupt to be simulated:
|
|
; any software interrupt which has higher priority than
|
|
; current IRQL's is pending.
|
|
;
|
|
; NOTE: This routine simulates software interrupt as long as
|
|
; any pending SW interrupt level is higher than the current
|
|
; IRQL, even when interrupts are disabled.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; NewIrql - the new irql to be set.
|
|
;
|
|
; Vector - Vector number of the interrupt
|
|
;
|
|
; Note that esp+8 is the beginning of interrupt/trap frame and upon
|
|
; entering to this routine the interrupts are off.
|
|
;
|
|
; Return Value:
|
|
;
|
|
; None.
|
|
;
|
|
;--
|
|
|
|
HeiNewIrql equ [esp + 4]
|
|
|
|
cPublicProc _HalEndSystemInterrupt,2
|
|
|
|
movzx ecx, byte ptr HeiNewIrql; get new irql value
|
|
|
|
cmp byte ptr fs:PcIrql, DISPATCH_LEVEL ; Software level?
|
|
jbe short Hei02 ; yes, go skip setting 8259 hw
|
|
|
|
mov eax, KiI8259MaskTable[ecx*4]; get pic masks for the new irql
|
|
or eax, fs:PcIDR ; mask irqs which are disabled
|
|
SET_8259_MASK ; set 8259 masks
|
|
|
|
;
|
|
; Unlike KeLowerIrql, we don't check if the the irql is lowered to
|
|
; below IPI level and enable interrupt for second processor. This is because
|
|
; the correct interrupt flag is already stored in the TsEflags of Trap frame.
|
|
;
|
|
|
|
Hei02: mov fs:PcIrql, cl ; set the new irql
|
|
mov eax, fs:PcIRR ; get SW interrupt request register
|
|
mov al, SWInterruptLookUpTable[eax] ; get the highest pending
|
|
; software interrupt level
|
|
cmp al, cl ; Is highest SW int level > irql?
|
|
ja Hei10 ; yes, go simulate interrupt
|
|
|
|
stdRET _HalEndSystemInterrupt ; RETURN
|
|
|
|
; When we come to Kli10, (eax) = soft interrupt index
|
|
|
|
Hei10: add esp, 12
|
|
jmp SWInterruptHandlerTable2[eax*4] ; SIMULATE INTERRUPT
|
|
; to the appropriate handler
|
|
stdENDP _HalEndSystemInterrupt
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; HalpEndSoftwareInterrupt
|
|
; IN KIRQL NewIrql,
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is used to lower IRQL from software interrupt
|
|
; level to the specified value.
|
|
; The IRQL and PIRQL will be updated accordingly. Also, this
|
|
; routine checks to see if any software interrupt should be
|
|
; generated. The following condition will cause software
|
|
; interrupt to be simulated:
|
|
; any software interrupt which has higher priority than
|
|
; current IRQL's is pending.
|
|
;
|
|
; NOTE: This routine simulates software interrupt as long as
|
|
; any pending SW interrupt level is higher than the current
|
|
; IRQL, even when interrupts are disabled.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; NewIrql - the new irql to be set.
|
|
;
|
|
; Note that esp+8 is the beginning of interrupt/trap frame and upon
|
|
; entering to this routine the interrupts are off.
|
|
;
|
|
; Return Value:
|
|
;
|
|
; None.
|
|
;
|
|
;--
|
|
|
|
cPublicProc _HalpEndSoftwareInterrupt,1
|
|
cPublicFpo 1,0
|
|
mov ecx, [esp+4]
|
|
fstCall KfLowerIrql
|
|
stdRet _HalpEndSoftwareInterrupt
|
|
stdENDP _HalpEndSoftwareInterrupt
|
|
|
|
page ,132
|
|
subttl "Get current irql"
|
|
|
|
;++
|
|
;
|
|
; KIRQL
|
|
; KeGetCurrentIrql (VOID)
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine returns to current IRQL.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; None.
|
|
;
|
|
; Return Value:
|
|
;
|
|
; The current IRQL.
|
|
;
|
|
;--
|
|
|
|
cPublicProc _KeGetCurrentIrql,0
|
|
movzx eax,byte ptr fs:PcIrql ; Current irql is in the PCR
|
|
stdRET _KeGetCurrentIrql
|
|
stdENDP _KeGetCurrentIrql
|
|
|
|
;++
|
|
;
|
|
; VOID
|
|
; HalpDisableAllInterrupts (VOID)
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine is called during a system crash. The hal needs all
|
|
; interrupts disabled.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; None.
|
|
;
|
|
; Return Value:
|
|
;
|
|
; None - all interrupts are masked off
|
|
;
|
|
;--
|
|
|
|
cPublicProc _HalpDisableAllInterrupts,0
|
|
|
|
;
|
|
; Raising to HIGH_LEVEL disables interrupts for the Oli-HAL
|
|
;
|
|
|
|
mov ecx, HIGH_LEVEL
|
|
fstCall KfRaiseIrql
|
|
stdRET _HalpDisableAllInterrupts
|
|
|
|
stdENDP _HalpDisableAllInterrupts
|
|
|
|
|
|
page ,132
|
|
subttl "Interrupt Controller Chip Initialization"
|
|
;++
|
|
;
|
|
; VOID
|
|
; HalpInitializePICs (
|
|
; )
|
|
;
|
|
; Routine Description:
|
|
;
|
|
; This routine sends the 8259 PIC initialization commands and
|
|
; masks all the interrupts on 8259s.
|
|
;
|
|
; Arguments:
|
|
;
|
|
; None
|
|
;
|
|
; Return Value:
|
|
;
|
|
; None.
|
|
;
|
|
;--
|
|
cPublicProc _HalpInitializePICs,0
|
|
|
|
push esi ; save caller's esi
|
|
cli ; disable interrupt
|
|
lea esi, PICsInitializationString
|
|
|
|
Hip00:
|
|
lodsw ; (AX) = PIC port 0 address
|
|
Hip10: movzx edx, ax
|
|
outsb ; output ICW1
|
|
IODelay
|
|
inc edx ; (DX) = PIC port 1 address
|
|
outsb ; output ICW2
|
|
IODelay
|
|
outsb ; output ICW3
|
|
IODelay
|
|
outsb ; output ICW4
|
|
IODelay
|
|
mov al, 0FFH ; mask all 8259 irqs
|
|
out dx,al ; write mask to PIC
|
|
lodsw
|
|
cmp ax, 0 ; end of init string?
|
|
jne short Hip10 ; go init next PIC
|
|
|
|
pop esi ; restore caller's esi
|
|
sti ; enable interrupt
|
|
stdRET _HalpInitializePICs
|
|
stdENDP _HalpInitializePICs
|
|
|
|
|
|
_TEXT ends
|
|
end
|