#
# startup.s - starup code for the lpc2220
#
# author: hackbard@hackdaworld.org
#

#
# some definitions
#

# sram

.equ	sram_size,	(64*1024)
.equ	sram_addr,	0x40000000
.equ	sram_top,	(sram_addr+sram_size-4)

# stack

.equ	stack_size,	(2*1024)
.equ	stack_top,	sram_top
.equ	stack_limit,	(sram_top-stack_size)

#
# the startup code
#

.text
.arm

	# init stack pointer

	ldr r0, =sram_top
	mov sp, r0
	ldr r0, =stack_limit
	mov sl, r0

	# jump to c code

	adr lr, loop_forever
	mov r0, #0
	mov r1, #0
	ldr r2, =main
	bx r2

loop_forever:
	b loop_forever