+
−	.text
+
−	.org	0
+
−	.code	32
+
−
+
−@ set CPSR like mot931c payload does
+
−	msr	CPSR_c, #0xd3
+
−@ disable the watchdog
+
−	ldr	r1, =0xfffff802
+
−	mov	r0, #0xf5
+
−	strh	r0, [r1, #2]
+
−	mov	r0, #0xa0
+
−	strh	r0, [r1, #2]
+
−@ MODEM UART
+
−	ldr	r6, =0xffff5800
+
−@ wait for any previous output to flush out
+
−1:	ldrb	r0, [r6, #5]
+
−	tst	r0, #0x20
+
−	beq	1b
+
−@ send our indication
+
−	adr	r1, outstr
+
−	mov	r2, #6
+
−1:	ldrb	r0, [r1], #1
+
−	strb	r0, [r6]
+
−	subs	r2, r2, #1
+
−	bne	1b
+
−@ wait for this output to go out to the TxD pin
+
−1:	ldrb	r0, [r6, #5]
+
−	tst	r0, #0x40
+
−	beq	1b
+
−@ enable the Calypso boot ROM
+
−	ldr	r1, =0xFFFFFB10
+
−	mov	r2, #0x0100
+
−	strh	r2, [r1]
+
−@ jump to it!
+
−	mov	pc, #0
+
−
+
−outstr:	.byte	2,2,2,'O','K',2