FreeCalypso > hg > freecalypso-tools

view target-utils/env/crt0.S @ 563:3f5d7d3ebc69

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
CHANGES: new flash support and loadtools target -h gen8
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 30 Jan 2020 16:45:57 +0000
parents e7502631a0f9
children
line wrap: on
line source

#include "halt.h"

	.text
	.code	32
	.global	_entry
_entry:
	ldr	sp, =stack_bottom
@ zero bss
	ldr	r0, =__bss_start
	ldr	r2, =__bss_end
	sub	r1, r2, r0
	bl	bzero
@ C code entry
	bl	main
	mov	r0, #HALTCODE_MAINEXITED
	.global	_exit
_exit:	nop
1:	nop
	b	1b