FreeCalypso > hg > freecalypso-tools

diff target-utils/c139-lldbg/entry.S @ 0:e7502631a0f9

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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Jun 2016 00:13:35 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/c139-lldbg/entry.S	Sat Jun 11 00:13:35 2016 +0000
@@ -0,0 +1,20 @@
+	.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