🚀 go-pugleaf

     I can't find out the reasonable MOD group for this question.
However, I thought there might be  a lot of experts on DEQNA around this
groupe. So, I post this question.

     We are trying to boot DEQNA (Ethernet interface on Q-BUS) on LSI-11/73
RT-11. We wrote a test program to read BDROM (Boot/Diagnostic ROM) on
DEQNA board in vain. This is very complicated work, because the ROM is
transfered like a packet arriving from other node. We have a poor
documentaion about DEQNA. DEC Japan has not ever experienced to
install DEQNA from the begining. So, It's hard to get information and
know-how from DEC Japan. Our DEQNA's version is C1.
  In order to read BDROM, we made a tentative program. For
reference, the program is attached here. If there is any incorrection
in the program, please suggest me. 
Thanks in advance.
                                                   KEN
;
; DEQNA BDROM reading program for RT-11
;
RBDLST	= 174444
XBDLST	= 174450
DEQNAV	= 174454	; Vector Register address
DEQCSR	= 174456	; DEQNA's Control & Status Register address
BD	= 10		; Read BDROM (for CSR)
IE	= 100
STATUS	= 10
SR	= 2
IL	= 000400	; Internal loopback test off
	.mcall	.exit
Start:
; clear buffers
	mov	#Buf1,r0
	mov	#Buf2-Buf1/2,r1
3$:	clr	(r0)+
	sob	r1,3$
	mov	#Buf2,r0
	mov	#Buf3-Buf2/2,r1
4$:	clr	(r0)+
	sob	r1,4$
; setup for reading
	bis	#SR,@#DEQCSR	; software reset on
				; I have to keep reset line active for a while.
	bic	#SR,@#DEQCSR
	mov	#774,@#DEQNAV
	mov	#BDL4,@#XBDLST	; set BDL for setting MY ETHER ADDRESS
	clr	@#XBDLST+2
	mov	#BDL1,@#RBDLST	; set BDL for BD-ROM read
	clr	@#RBDLST+2
	bic	#IE,@#DEQCSR	; interrupt disable
	bis	#BD,@#DEQCSR	; read BDROM
1$:	bit	#40000,BDL1+STATUS1
	bne	1$
2$:	bit	#40000,BDL2+STATUS1
	bne	2$
	.exit				
BDL1:	100000		; flag
	100000		; addr-des-bit/h-o-addr
	Buf1		; l-o-addr
	Buf1-Buf2/2	; buffer length
	100000		; status 1
	100000		; status 2
BDL2:	100000
	100000
	Buf2
	Buf2-Buf3/2
	100000
	100000
BDL3:	100000
	0		; end of RBDL	
BDL4:	100000
	130000
	Buf3
	Buf3-Buf4/2
	100000
	100000
BDL5:	100000
	0		; end of XBDL
; Reserve receive buffer

Buf1:	.blkb	2048.
Buf2:	.blkb	2048.
Buf3:	.byte	0,252,252,252,252,252,252,252	; 1st byte of my ether address
	.byte	0,0,0,0,0,0,0,0			; 2nd
	.byte	0,3,3,3,3,3,3,3			; 3rd
	.byte	0,1,1,1,1,1,1,1			; 4th
	.byte	0,31,31,31,31,31,31,31		; 5th
	.byte	0,175,175,175,175,175,175,175	; 6th
	.byte	0,0,0,0,0,0,0,0			; dummy
	.byte	0,0,0,0,0,0,0,0			; dummy
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,377,377,377,377,377,377,377	; set broadcast address
	.byte	0,0,0,0,0,0,0,0			; dummy
	.byte	0,0,0,0,0,0,0,0			; dummy
	.byte	14,14
Buf4:
	.end	Start

;The end of DEQNA BDROM reading program
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