[unix-history] / usr / src / sys / vax / stand / srt0.c

#	srt0.c	4.2	%G%

# Startup code for standalone system
# Non-relocating version -- for programs which are loaded by boot

	.globl	_edata
	.globl	_main
	.globl	__rtt

	.set	PHYSUBA,0x20006000	# uba 0

	.set	HIGH,31		# mask for total disable

	.word	0x0
	mtpr	$HIGH,$IPL		# just in case
	movl	$RELOC-0x2000,sp
	movl	$1,PHYSUBA+4		# init
ubic:
	movl	*$PHYSUBA,r0		# while ((up->uba_cnfgr & UBIC) == 0)
	bitl	$0x10000,r0		# 	continue;
	jeql	ubic
	movab	_edata,r0
clr:
	clrl	(r0)+
	cmpl	r0,sp
	jlss	clr
start:
	calls	$0,_main
	jmp	start

__rtt:
	.word	0x0
	jmp	start
Commit	Line	Data
db7e2859	1	# srt0.c 4.2 %G%
3a30f6d7 BJ	2
	3	# Startup code for standalone system
	4	# Non-relocating version -- for programs which are loaded by boot
	5
1a6aead8	6	.globl _edata
3a30f6d7 BJ	7	.globl _main
3a30f6d7 BJ	8	.globl __rtt
3a30f6d7 BJ	9
3a30f6d7 BJ	10	.set PHYSUBA,0x20006000 # uba 0
3a30f6d7 BJ	11
	12	.set HIGH,31 # mask for total disable
	13
	14	.word 0x0
	15	mtpr $HIGH,$IPL # just in case
1a6aead8	16	movl $RELOC-0x2000,sp
3a30f6d7	17	movl $1,PHYSUBA+4 # init
1a6aead8 BJ	18	ubic:
	19	movl *$PHYSUBA,r0 # while ((up->uba_cnfgr & UBIC) == 0)
	20	bitl $0x10000,r0 # continue;
db7e2859	21	jeql ubic
1a6aead8	22	movab _edata,r0
784de51c BJ	23	clr:
	24	clrl (r0)+
	25	cmpl r0,sp
	26	jlss clr
3a30f6d7	27	start:
3a30f6d7 BJ	28	calls $0,_main
	29	jmp start
	30
	31	__rtt:
	32	.word 0x0
	33	jmp start