1 .global start 2 .global stack 3 .global reset 4 .global dst_addr 5 .global src_addr 6 .global words 7 8 .text 9 .thumb 10 .align 0 11 12start: 13 ldr r0, dst_addr 14 ldr r1, src_addr 15 ldr r2, words 16 b check 17 18copy: 19 ldmia r1!, {r3} 20 stmia r0!, {r3} 21 sub r2, #1 22 23check: 24 cmp r2, #0 25 bne copy 26 27 @ Fix for SAM-BA stack bug 28 ldr r0, reset 29 cmp r0, #0 30 bne return 31 ldr r0, stack 32 mov sp, r0 33 34return: 35 bx lr 36 37 .align 0 38stack: 39 .word 0 40reset: 41 .word 0 42dst_addr: 43 .word 0 44src_addr: 45 .word 0 46words: 47 .word 0 48