Return to relsrt0.s CVS log

Up to [CSRG BSD Unix] / 3BSD / sys / stand

BSD 3.0

# Startup code for standalone system
# Self-relocating version used by boot itself.

	.globl	_end
	.globl	_main
	.globl	__rtt
	.globl	_edata

	.set	PHYSUBA,0x20006000	# uba 0
	.set	PHYSMBA0,0x20010000	# mba 0
	.set	PHYSMBA1,0x20012000	# mba 1
	.set	PHYSUMEM,0x2013e000	# unibus memory

	.set	HIGH,31		# mask for total disable

	.word	0x0
	mtpr	$HIGH,$IPL		# just in case
	movl	$RELOC,sp
	movl	$1,*$PHYSMBA0+4		# init
	movl	$1,*$PHYSMBA1+4		# init
	movl	$1,*$PHYSUBA+4		# init
	subl3	$_edata,$_end,r0
	subl3	$RELOC,$_edata,r1
	movc5	$0,(sp),$0,r0,(r1)
	movc3	aend,*$0,(sp)		# relocate
	jmp	*astart
start:
	calls	$0,_main
	movl	$RELOC,sp
	jmp	start

__rtt:
	.word	0x0
	movl	$RELOC,sp
	jmp	*$start

	.data
astart:	.long	start
aend:	.long	_end

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.