Conversion by Nestor of VCF from 286 to 8088/8086 code.

http://www.vcfed.org/forum/showthread.php?30537-Feeling-lucky-is-the-3c509B-compatible-with-8088-using-NE1000-drivers&p=224266#post224266

3C509.ASM

@@ -3,7 +3,7 @@ version	equ	6
 ;Fri Mar 08 14:48:42 2002 Merge in Peter Tattum's 3c509b changes.
 ;Mon Jan 22 15:09:36 1996 we were rejecting frames with dribble set and accepting other errored frames.
 
-	.286
+        .8086
 
 ;  Copyright, 1988-1992, Russell Nelson, Crynwr Software
 
@@ -488,16 +488,24 @@ send_pkt_2:
 	out	dx,ax			;output the second reserved word.
 	mov	cx,bx			;output the rest of the packet.
 
-	cmp	is_386,0		;can we output dwords?
-	jne	send_pkt_7		;yes.
+;	 cmp	 is_386,0		 ;can we output dwords?
+;	 jne	 send_pkt_7		 ;yes.
 	shr	cx,1			;output 16 bits at a time.
-	rep	outsw
-	jmp	short send_pkt_6
-send_pkt_7:
-	.386
-	shr	cx,2			;already rounded up.
-	rep	outsd			;output 32 bits at a time.
-	.286
+;	 rep	 outsw
+
+;start 8086 code
+send_8086:
+	lodsw
+	out	dx,ax
+	loop send_8086
+;end 8086 code
+
+        jmp     short send_pkt_6
+;send_pkt_7:
+;        .386
+;        shr     cx,2                    ;already rounded up.
+;        rep     outsd                   ;output 32 bits at a time.
+;        .286
 send_pkt_6:
 
 	clc
@@ -637,7 +645,14 @@ read_header:
 	mov	cx,ETHER_BUFF_LEN/4
 repinsd:
 	shl	cx,1			;*** this gets changed into "rep insd"
-	rep	insw			;***   "nop" on a 386 or 486.
+;	 rep	 insw			 ;***	"nop" on a 386 or 486.
+
+;start 8086 code
+l_rep:
+	in	ax,dx
+	stosw
+	loop l_rep
+;end 8086 code
 
 	mov	di,offset ether_type
 
@@ -759,15 +774,29 @@ recv_complete_4:
 	mov	cx,bx			;restore the count.
 	sub	cx,ETHER_BUFF_LEN	;but leave off what we've already copied.
 
-	cmp	is_386,0
-	jne	io_input_386
+;	 cmp	 is_386,0
+;	 jne	 io_input_386
 io_input_286:
 	push	cx
 	shr	cx,1
-	rep	insw
+;	 rep	 insw
+
+;start 8086 code
+l_input:
+	in	ax, dx
+	stosw
+	loop l_input
+;end 8086 code
+
 	pop	cx
 	jnc	io_input_286_1		;go if the count was even.
-	insb				;get that last byte.
+;	 insb				 ;get that last byte.
+
+;start 8086 code
+	in al, dx
+	stosb
+;end 8086 code
+
 	in	al,dx			;and get the pad byte.
 	test	cx,2			;even number of words?
 	jne	io_input_done		;no.
@@ -779,28 +808,28 @@ io_input_286_1:
 	in	ax,dx			;yes, get the pad word.
 	jmp	short io_input_done
 
-io_input_386:
-	.386
-	push	eax
-	push	cx			;first, get all the full words.
-	shr	cx,2
-	rep	insd
-	pop	cx
-	test	cx,3			;even number of dwords?
-	je	io_input_386_one_byte	;yes.
-	in	eax,dx			;no, get the partial word.
-	test	cx,2			;a full word to be stored?
-	je	io_input_386_one_word
-	stosw				;yes, store it,
-	shr	eax,16			;and move over by a word.
-io_input_386_one_word:
-
-	test	cx,1			;a full byte to be stored?
-	je	io_input_386_one_byte
-	stosb				;yes, store it.
-io_input_386_one_byte:
-	pop	eax
-	.286
+;io_input_386:
+;	 .386
+;	 push	 eax
+;	 push	 cx			 ;first, get all the full words.
+;	 shr	 cx,2
+;	 rep	 insd
+;	 pop	 cx
+;	 test	 cx,3			 ;even number of dwords?
+;	 je	 io_input_386_one_byte	 ;yes.
+;	 in	 eax,dx			 ;no, get the partial word.
+;	 test	 cx,2			 ;a full word to be stored?
+;	 je	 io_input_386_one_word
+;	 stosw				 ;yes, store it,
+;	 shr	 eax,16			 ;and move over by a word.
+;io_input_386_one_word:
+
+;	 test	 cx,1			 ;a full byte to be stored?
+;	 je	 io_input_386_one_byte
+;	 stosb				 ;yes, store it.
+;io_input_386_one_byte:
+;	 pop	 eax
+;	 .286
 
 io_input_done:
 
@@ -852,8 +881,8 @@ usage_msg	db	"usage: 3c509 [options] <packet_int_no> [id_port]",CR,LF,'$'
 
 	public	copyright_msg
 copyright_msg	db	"Packet driver for a 3c509, version ",'0'+(majver / 10),'0'+(majver mod 10),".",'0'+version,CR,LF
-		db	"Portions Copyright 1992, Crynwr Software",CR,LF,'$'
-needs_186_msg	db	"Needs a 186 or higher-numbered processor",CR,LF,'$'
+		db	"Portions Copyright 1992, Crynwr Software",CR,LF
+		db	"8088/8086 support by Nestor a.k.a. DistWave",CR,LF,'$'
 no_isa_msg	db	CR,LF
 		db	"No 3c509 found.  Use a different id_port value.  Default is 0x110.",CR,LF,'$'
 reading_msg	db	"Reading EEPROM.",'$'
@@ -917,19 +946,19 @@ etopen:
 ;initialize the driver.  Fill in rom_address with the assigned address of
 ;the board.  Exit with nc if all went well, or cy, dx -> $ terminated error msg.
 ;if all is okay,
-	cmp	is_186,0		;this version requires a 186 or better.
-	jne	etopen_1
-	mov	dx,offset needs_186_msg
-	stc
-	ret
-etopen_1:
-
-	cmp	is_386,0		;can we do a real insd?
-	je	etopen_2
+;	 cmp	 is_186,0		 ;this version requires a 186 or better.
+;	 jne	 etopen_1
+;	 mov	 dx,offset needs_186_msg
+;	 stc
+;	 ret
+;etopen_1:
+
+;	 cmp	 is_386,0		 ;can we do a real insd?
+;	 je	 etopen_2
 ;overlay the repinsd routine with a real "rep insd;nop"
-	mov	word ptr repinsd+0,066h+0f3h*256
-	mov	word ptr repinsd+2,06dh+090h*256
-etopen_2:
+;	 mov	 word ptr repinsd+0,066h+0f3h*256
+;	 mov	 word ptr repinsd+2,06dh+090h*256
+;etopen_2:
 
 	cmp	is_eisa,0
 	jne	etopen_eisa

MAKEFILE

@@ -1,10 +1,11 @@
 .asm.obj:
- 	tasm $*;
+	tasm $*;
 
 3c509.com: head.obj 3c509.obj tail.obj
 	tlink /t/m head+3c509+tail,3c509;
 
-zip:
+clean:
 	del *.obj
 	del *.map
-	zip -a 3c509
+	del 3c509.com
+