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view target-utils/c139-lldbg/entry.S @ 621:f44770a652eb

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loadtool.help: additional details documented for dump commands This documentation addition explains the alignment requirements for dump, dump2bin and dump2srec commands, and explains that dump2srec is deprecated.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 04:27:18 +0000
parents e7502631a0f9
children
line wrap: on
line source

	.text
	.globl	_entry
_entry:
	.code	16
	bx	pc
	nop

	.code	32
	stmfd	sp!, {r0-r12,lr}
	mrs	r0, CPSR
	mov	r1, sp
	/* supervisor mode, disable all interrupts */
	msr	CPSR_c, #0xd3
	ldr	sp, =stack_bottom
	/* save entry SP and CPSR */
	ldr	r2, =lldbg_entry_cpsr
	str	r0, [r2]
	ldr	r2, =lldbg_entry_sp
	str	r1, [r2]
	b	main