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view target-utils/c139-lldbg/entry.S @ 1030:194967e11b2b

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fc-shell: tch record and tch play reworked for libgsm-compatible file format
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 31 May 2016 18:39:06 +0000
parents d7830aee0d35
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