| .equ p6ddr, 0xffb9 ;0x7f for output | |
| .equ p6dr, 0xffbb | |
| .equ seed, 0x01 | |
| .text | |
| .org 0 | |
| reset: .word main ;reset vector | |
| ; | |
| .org 0x400 | |
| main: mov.b #0x7f,r0l ;port 6 ddr = 7F | |
| mov.b @0xffbb:8,r0l ;***test*** | |
| mov.b r0l,@p6ddr:16 | |
| ; | |
| mov.b #seed,r0l ;start with 0000001 | |
| loop: mov.b r0l,@p6dr:16 ;output to port 6 | |
| delay: mov.w #0x0000,r1 | |
| deloop: adds #1,r1 | |
| bne deloop:8 ;not = 0 | |
| rotl r0l | |
| bra loop:8 | |
| .word 0 |