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view target-utils/c139-lldbg/entry.S @ 992:c4c400c1b10c

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fc-loadtool flash: no flash2 ppb-erase-all All PPBs from across the entire flash chip can only be erased together as a unit, spanning across both banks on 16 MiB chips - therefore, we shall disallow 'flash2 ppb-erase-all', and accept 'flash ppb-erase-all' only.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Dec 2023 04:47:31 +0000
parents e7502631a0f9
children
line wrap: on
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	.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