[unix-history] / usr / src / sys / stand / tpsrt0.s

#	tpsrt0.s	4.4	11/11/80

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

	.globl	_edata
	.globl	_end
	.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
	movab	_end,r1
clr:
	clrl	(r0)+
	cmpl	r0,r1
	jlss	clr
start:
	calls	$0,_main
	ret

__rtt:
	.word	0x0
	jmp	start
Commit	Line	Data
f86463af BJ	1	# tpsrt0.s 4.4 11/11/80
	2
	3	# Startup code for standalone system
	4	# Non-relocating version -- for programs which are loaded by boot
	5
	6	.globl _edata
	7	.globl _end
	8	.globl _main
	9	.globl __rtt
	10
	11	.set PHYSUBA,0x20006000 # uba 0
	12
	13	.set HIGH,31 # mask for total disable
	14
	15	.word 0x0
	16	mtpr $HIGH,$IPL # just in case
	17	movl $RELOC-0x2000,sp
	18	movl $1,PHYSUBA+4 # init
	19	ubic:
	20	movl *$PHYSUBA,r0 # while ((up->uba_cnfgr & UBIC) == 0)
	21	bitl $0x10000,r0 # continue;
	22	jeql ubic
	23	movab _edata,r0
	24	movab _end,r1
	25	clr:
	26	clrl (r0)+
	27	cmpl r0,r1
	28	jlss clr
	29	start:
	30	calls $0,_main
	31	ret
	32
	33	__rtt:
	34	.word 0x0
	35	jmp start