; 3C501 (Ethernet) interrupt hooks

	.MODEL	MEMMOD,C
	LOCALS
	%MACS
	.LALL

	extrn	Stktop,Spsave,Sssave,ecint:proc,doret:proc,eoi:proc

	.CODE
dbase	dw	@Data		; save loc for ds (must be in code segment)

; ec0vec - Ethernet interrupt handler
	public	ec0vec
	label	ec0vec far
	push	ds		; save on user stack
	mov	ds,cs:dbase	; establish interrupt data segment

	mov	Sssave,ss	; stash user stack context
	mov	Spsave,sp

	mov	ss,cs:dbase
	lea	sp,Stktop

	push	ax		; save user regs on interrupt stack
	push	bx
	push	cx
	push	dx
	push	bp
	push	si
	push	di
	push	es
	call	eoi

	mov	ax,0		; arg for service routine
	push	ax
	call	ecint
	pop	ax
	jmp	doret

; ec1vec - Ethernet interrupt handler
	public	ec1vec
	label	ec1vec far
	push	ds		; save on user stack
	mov	ds,cs:dbase	; establish interrupt data segment

	mov	Sssave,ss	; stash user stack context
	mov	Spsave,sp

	mov	ss,cs:dbase
	lea	sp,Stktop

	push	ax		; save user regs on interrupt stack
	push	bx
	push	cx
	push	dx
	push	bp
	push	si
	push	di
	push	es
	call	eoi

	mov	ax,1		; arg for service routine
	push	ax
	call	ecint
	pop	ax
	jmp	doret

; ec2vec - Ethernet interrupt handler
	public	ec2vec
	label	ec2vec far
	push	ds		; save on user stack
	mov	ds,cs:dbase	; establish interrupt data segment

	mov	Sssave,ss	; stash user stack context
	mov	Spsave,sp

	mov	ss,cs:dbase
	lea	sp,Stktop

	push	ax		; save user regs on interrupt stack
	push	bx
	push	cx
	push	dx
	push	bp
	push	si
	push	di
	push	es
	call	eoi

	mov	ax,2		; arg for service routine
	push	ax
	call	ecint
	pop	ax
	jmp	doret

	end
