FreeCalypso > hg > freecalypso-sw

diff target-utils/c139-lldbg/entry.S @ 955:d7830aee0d35

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
c139-lldbg hack concocted
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 04 Nov 2015 20:34:12 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/c139-lldbg/entry.S	Wed Nov 04 20:34:12 2015 +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