OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [libgloss/] [fr30/] [crt0.s] - Rev 829

Compare with Previous | Blame | View Log

# FR30 startup code
 
	.section .text
	.global	_start
_start:
 
	;; Initialise the stack pointer
	ldi:32	__stack, r0
	mov	r0, sp
	mov	r0, fp
 
	;; Zero the data space
	ldi:32	#_edata, r0
	ldi:32	#_end,   r1
	ldi:8	#0,	 r2
.L0:	
	st	r2, @r0
	add	#4, r0
	cmp	r1, r0
	blt	.L0
 
	;; Call global and static constructors
	ldi:32	_init, r0
	call	@r0
 
	;;  Setup destrcutors to be called from exit.
	;;  (Just in case main never returns....)
	ldi:32	atexit, r0
	ldi:32	_fini, r4
	call	@r0
 
	;;  Initialise argc, argv and envp to empty
	ldi:8	#0, r4
	ldi:8	#0, r5
	ldi:8	#0, r6
 
	;; Call main
	ldi:32	main, r0
	call	@r0
 
	;; Jump to exit
	ldi:32	exit, r0
	call	@r0
 
	;; Should never reach here
	int	#9
 

Compare with Previous | Blame | View Log

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.